diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index b4138e88d9a4e52865dc80b73b03041796e4920c..d561efe186410ce7b93ef14744a82d4e972cd8a3 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -134,8 +134,8 @@ OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o
OBJS-$(CONFIG_COOK_DECODER) += cook.o
OBJS-$(CONFIG_CSCD_DECODER) += cscd.o
OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o
-OBJS-$(CONFIG_DCA_DECODER) += dca.o synth_filter.o dcadsp.o \
- dca_parser.o
+OBJS-$(CONFIG_DCA_DECODER) += dcadec.o dca.o dcadsp.o \
+ dca_parser.o synth_filter.o
OBJS-$(CONFIG_DCA_ENCODER) += dcaenc.o
OBJS-$(CONFIG_DIRAC_DECODER) += diracdec.o dirac.o diracdsp.o \
dirac_arith.o mpeg12data.o dwt.o
@@ -660,6 +660,7 @@ OBJS-$(CONFIG_OGG_MUXER) += xiph.o flac.o flacdata.o \
vorbis_data.o
OBJS-$(CONFIG_RTP_MUXER) += mpeg4audio.o mpegvideo.o xiph.o
OBJS-$(CONFIG_SPDIF_DEMUXER) += aacadtsdec.o mpeg4audio.o
+OBJS-$(CONFIG_SPDIF_MUXER) += dca.o
OBJS-$(CONFIG_WEBM_MUXER) += mpeg4audio.o mpegaudiodata.o \
xiph.o flac.o flacdata.o \
vorbis_data.o
@@ -716,7 +717,7 @@ OBJS-$(CONFIG_AC3_PARSER) += ac3_parser.o ac3tab.o \
OBJS-$(CONFIG_ADX_PARSER) += adx_parser.o adx.o
OBJS-$(CONFIG_CAVSVIDEO_PARSER) += cavs_parser.o
OBJS-$(CONFIG_COOK_PARSER) += cook_parser.o
-OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o
+OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o dca.o
OBJS-$(CONFIG_DIRAC_PARSER) += dirac_parser.o
OBJS-$(CONFIG_DNXHD_PARSER) += dnxhd_parser.o
OBJS-$(CONFIG_DVBSUB_PARSER) += dvbsub_parser.o
diff --git a/libavcodec/arm/h264cmc_neon.S b/libavcodec/arm/h264cmc_neon.S
index e82394d899714f7a8cd52790690e754659b5b346..c7e54605bbf35e85eaed5c56c1f3b3d39bc23699 100644
--- a/libavcodec/arm/h264cmc_neon.S
+++ b/libavcodec/arm/h264cmc_neon.S
@@ -24,7 +24,7 @@
.macro h264_chroma_mc8 type, codec=h264
function ff_\type\()_\codec\()_chroma_mc8_neon, export=1
push {r4-r7, lr}
- ldrd r4, [sp, #20]
+ ldrd r4, r5, [sp, #20]
.ifc \type,avg
mov lr, r0
.endif
@@ -182,7 +182,7 @@ endfunc
.macro h264_chroma_mc4 type, codec=h264
function ff_\type\()_\codec\()_chroma_mc4_neon, export=1
push {r4-r7, lr}
- ldrd r4, [sp, #20]
+ ldrd r4, r5, [sp, #20]
.ifc \type,avg
mov lr, r0
.endif
diff --git a/libavcodec/arm/h264dsp_neon.S b/libavcodec/arm/h264dsp_neon.S
index 341863ef4025bd208790d2ab563fc13de08f590c..be0d2ec0bb85ec53db3776eb3024cca91de256f5 100644
--- a/libavcodec/arm/h264dsp_neon.S
+++ b/libavcodec/arm/h264dsp_neon.S
@@ -886,7 +886,7 @@ T mov sp, r0
mov r12, #8
vpush {d8-d15}
bl put_h264_qpel8_h_lowpass_neon
- ldrd r0, [r11], #8
+ ldrd r0, r1, [r11], #8
mov r3, r2
add r12, sp, #64
sub r1, r1, r2, lsl #1
@@ -913,7 +913,7 @@ T mov sp, r0
vpush {d8-d15}
bl put_h264_qpel8_h_lowpass_neon
mov r4, r0
- ldrd r0, [r11], #8
+ ldrd r0, r1, [r11], #8
sub r1, r1, r2, lsl #1
sub r1, r1, #2
mov r3, r2
@@ -958,7 +958,7 @@ T mov sp, r0
vpush {d8-d15}
bl put_h264_qpel8_v_lowpass_neon
mov r4, r0
- ldrd r0, [r11], #8
+ ldrd r0, r1, [r11], #8
sub r1, r1, r3, lsl #1
sub r1, r1, #2
sub r2, r4, #64
@@ -1071,7 +1071,7 @@ T mov sp, r0
mov r3, #16
vpush {d8-d15}
bl put_h264_qpel16_h_lowpass_neon
- ldrd r0, [r11], #8
+ ldrd r0, r1, [r11], #8
mov r3, r2
add r12, sp, #64
sub r1, r1, r2, lsl #1
@@ -1096,7 +1096,7 @@ T mov sp, r0
vpush {d8-d15}
bl put_h264_qpel16_h_lowpass_neon_packed
mov r4, r0
- ldrd r0, [r11], #8
+ ldrd r0, r1, [r11], #8
sub r1, r1, r2, lsl #1
sub r1, r1, #2
mov r3, r2
@@ -1139,7 +1139,7 @@ T mov sp, r0
vpush {d8-d15}
bl put_h264_qpel16_v_lowpass_neon_packed
mov r4, r0
- ldrd r0, [r11], #8
+ ldrd r0, r1, [r11], #8
sub r1, r1, r3, lsl #1
sub r1, r1, #2
mov r2, r3
diff --git a/libavcodec/arm/mpegvideo_armv5te_s.S b/libavcodec/arm/mpegvideo_armv5te_s.S
index 8f9dd42b225b32b3817ee3d0f407fc3c6389e928..8687d6b31cc0e08c9a6c7352c8d69c38ea394c5f 100644
--- a/libavcodec/arm/mpegvideo_armv5te_s.S
+++ b/libavcodec/arm/mpegvideo_armv5te_s.S
@@ -61,9 +61,9 @@ function ff_dct_unquantize_h263_armv5te, export=1
mov ip, #0
subs r3, r3, #2
ble 2f
- ldrd r4, [r0, #0]
+ ldrd r4, r5, [r0, #0]
1:
- ldrd r6, [r0, #8]
+ ldrd r6, r7, [r0, #8]
dequant_t r9, r4, r1, r2, r9
dequant_t lr, r5, r1, r2, lr
@@ -87,7 +87,7 @@ function ff_dct_unquantize_h263_armv5te, export=1
subs r3, r3, #8
it gt
- ldrdgt r4, [r0, #0] /* load data early to avoid load/use pipeline stall */
+ ldrdgt r4, r5, [r0, #0] /* load data early to avoid load/use pipeline stall */
bgt 1b
adds r3, r3, #2
diff --git a/libavcodec/arm/simple_idct_arm.S b/libavcodec/arm/simple_idct_arm.S
index 42741a07a1b30000433ac9f5edd0fba6c0c6a43a..dd1c81510428af41b6c8181a8ffb7a5074ae586d 100644
--- a/libavcodec/arm/simple_idct_arm.S
+++ b/libavcodec/arm/simple_idct_arm.S
@@ -25,8 +25,7 @@
#include "libavutil/arm/asm.S"
-/* useful constants for the algorithm, they are save in __constant_ptr__ at */
-/* the end of the source code.*/
+/* useful constants for the algorithm */
#define W1 22725
#define W2 21407
#define W3 19266
@@ -36,16 +35,6 @@
#define W7 4520
#define MASK_MSHW 0xFFFF0000
-/* offsets of the constants in the vector */
-#define offW1 0
-#define offW2 4
-#define offW3 8
-#define offW4 12
-#define offW5 16
-#define offW6 20
-#define offW7 24
-#define offMASK_MSHW 28
-
#define ROW_SHIFT 11
#define ROW_SHIFT2MSHW (16-11)
#define COL_SHIFT 20
@@ -63,7 +52,6 @@ function ff_simple_idct_arm, export=1
stmfd sp!, {r4-r11, r14} @ R14 is also called LR
@@ at this point, R0=block, other registers are free.
add r14, r0, #112 @ R14=&block[8*7], better start from the last row, and decrease the value until row=0, i.e. R12=block.
- adr r12, __constant_ptr__ @ R12=__constant_ptr__, the vector containing the constants, probably not necessary to reserve a register for it
@@ add 2 temporary variables in the stack: R0 and R14
sub sp, sp, #8 @ allow 2 local variables
str r0, [sp, #0] @ save block in sp[0]
@@ -109,13 +97,13 @@ __b_evaluation:
@@ MAC16(b1, -W7, row[3]);
@@ MAC16(b2, -W1, row[3]);
@@ MAC16(b3, -W5, row[3]);
- ldr r8, [r12, #offW1] @ R8=W1
+ ldr r8, =W1 @ R8=W1
mov r2, r2, asr #16 @ R2=ROWr16[3]
mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
- ldr r9, [r12, #offW3] @ R9=W3
- ldr r10, [r12, #offW5] @ R10=W5
+ ldr r9, =W3 @ R9=W3
+ ldr r10, =W5 @ R10=W5
mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
- ldr r11, [r12, #offW7] @ R11=W7
+ ldr r11, =W7 @ R11=W7
mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
teq r2, #0 @ if null avoid muls
@@ -177,14 +165,14 @@ __a_evaluation:
@@ a2 = a0 - W6 * row[2];
@@ a3 = a0 - W2 * row[2];
@@ a0 = a0 + W2 * row[2];
- ldr r9, [r12, #offW4] @ R9=W4
+ ldr r9, =W4 @ R9=W4
mul r6, r9, r6 @ R6=W4*ROWr16[0]
- ldr r10, [r12, #offW6] @ R10=W6
+ ldr r10, =W6 @ R10=W6
ldrsh r4, [r14, #4] @ R4=ROWr16[2] (a3 not defined yet)
add r6, r6, #ROW_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(ROW_SHIFT-1) (a0)
mul r11, r10, r4 @ R11=W6*ROWr16[2]
- ldr r8, [r12, #offW2] @ R8=W2
+ ldr r8, =W2 @ R8=W2
sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2)
@@ temp = ((uint32_t*)row)[2] | ((uint32_t*)row)[3];
@@ if (temp != 0) {}
@@ -248,7 +236,7 @@ __end_a_evaluation:
add r9, r2, r1 @ R9=a1+b1
@@ put 2 16 bits half-words in a 32bits word
@@ ROWr32[0]=ROWr16[0] | (ROWr16[1]<<16) (only Little Endian compliant then!!!)
- ldr r10, [r12, #offMASK_MSHW] @ R10=0xFFFF0000
+ ldr r10, =MASK_MSHW @ R10=0xFFFF0000
and r9, r10, r9, lsl #ROW_SHIFT2MSHW @ R9=0xFFFF0000 & ((a1+b1)<<5)
mvn r11, r10 @ R11= NOT R10= 0x0000FFFF
and r8, r11, r8, asr #ROW_SHIFT @ R8=0x0000FFFF & ((a0+b0)>>11)
@@ -319,13 +307,13 @@ __b_evaluation2:
@@ MAC16(b1, -W7, col[8x3]);
@@ MAC16(b2, -W1, col[8x3]);
@@ MAC16(b3, -W5, col[8x3]);
- ldr r8, [r12, #offW1] @ R8=W1
+ ldr r8, =W1 @ R8=W1
ldrsh r7, [r14, #16]
mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
- ldr r9, [r12, #offW3] @ R9=W3
- ldr r10, [r12, #offW5] @ R10=W5
+ ldr r9, =W3 @ R9=W3
+ ldr r10, =W5 @ R10=W5
mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
- ldr r11, [r12, #offW7] @ R11=W7
+ ldr r11, =W7 @ R11=W7
mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
ldrsh r2, [r14, #48]
mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
@@ -381,13 +369,13 @@ __a_evaluation2:
@@ a3 = a0 - W2 * row[2];
@@ a0 = a0 + W2 * row[2];
ldrsh r6, [r14, #0]
- ldr r9, [r12, #offW4] @ R9=W4
+ ldr r9, =W4 @ R9=W4
mul r6, r9, r6 @ R6=W4*ROWr16[0]
- ldr r10, [r12, #offW6] @ R10=W6
+ ldr r10, =W6 @ R10=W6
ldrsh r4, [r14, #32] @ R4=ROWr16[2] (a3 not defined yet)
add r6, r6, #COL_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(COL_SHIFT-1) (a0)
mul r11, r10, r4 @ R11=W6*ROWr16[2]
- ldr r8, [r12, #offW2] @ R8=W2
+ ldr r8, =W2 @ R8=W2
add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1)
sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2)
mul r11, r8, r4 @ R11=W2*ROWr16[2]
@@ -489,15 +477,3 @@ __end_bef_a_evaluation:
sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3)
add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0)
bal __end_a_evaluation
-
-
- .align
-__constant_ptr__: @@ see #defines at the beginning of the source code for values.
- .word W1
- .word W2
- .word W3
- .word W4
- .word W5
- .word W6
- .word W7
- .word MASK_MSHW
diff --git a/libavcodec/arm/simple_idct_armv5te.S b/libavcodec/arm/simple_idct_armv5te.S
index 20a2305b65bfd692269938c959bd46c3d6136c4b..d1f10b75cbc0f9fc242659fa48a74da6e155961a 100644
--- a/libavcodec/arm/simple_idct_armv5te.S
+++ b/libavcodec/arm/simple_idct_armv5te.S
@@ -37,17 +37,11 @@
#define W26 (W2 | (W6 << 16))
#define W57 (W5 | (W7 << 16))
- .text
- .align
-w13: .long W13
-w26: .long W26
-w57: .long W57
-
function idct_row_armv5te
str lr, [sp, #-4]!
- ldrd v1, [a1, #8]
- ldrd a3, [a1] /* a3 = row[1:0], a4 = row[3:2] */
+ ldrd v1, v2, [a1, #8]
+ ldrd a3, a4, [a1] /* a3 = row[1:0], a4 = row[3:2] */
orrs v1, v1, v2
itt eq
cmpeq v1, a4
@@ -58,7 +52,7 @@ function idct_row_armv5te
mov ip, #16384
sub ip, ip, #1 /* ip = W4 */
smlabb v1, ip, a3, v1 /* v1 = W4*row[0]+(1<<(RS-1)) */
- ldr ip, w26 /* ip = W2 | (W6 << 16) */
+ ldr ip, =W26 /* ip = W2 | (W6 << 16) */
smultb a2, ip, a4
smulbb lr, ip, a4
add v2, v1, a2
@@ -66,8 +60,8 @@ function idct_row_armv5te
sub v4, v1, lr
add v1, v1, lr
- ldr ip, w13 /* ip = W1 | (W3 << 16) */
- ldr lr, w57 /* lr = W5 | (W7 << 16) */
+ ldr ip, =W13 /* ip = W1 | (W3 << 16) */
+ ldr lr, =W57 /* lr = W5 | (W7 << 16) */
smulbt v5, ip, a3
smultt v6, lr, a4
smlatt v5, ip, a4, v5
@@ -78,7 +72,7 @@ function idct_row_armv5te
smultt fp, lr, a3
sub v7, v7, a2
smulbt a2, lr, a4
- ldrd a3, [a1, #8] /* a3=row[5:4] a4=row[7:6] */
+ ldrd a3, a4, [a1, #8] /* a3=row[5:4] a4=row[7:6] */
sub fp, fp, a2
orrs a2, a3, a4
@@ -94,7 +88,7 @@ function idct_row_armv5te
smlatt v7, ip, a4, v7
sub fp, fp, a2
- ldr ip, w26 /* ip = W2 | (W6 << 16) */
+ ldr ip, =W26 /* ip = W2 | (W6 << 16) */
mov a2, #16384
sub a2, a2, #1 /* a2 = W4 */
smulbb a2, a2, a3 /* a2 = W4*row[4] */
@@ -121,7 +115,7 @@ function idct_row_armv5te
add a2, v4, fp
mov a2, a2, lsr #11
add a4, a4, a2, lsl #16
- strd a3, [a1]
+ strd a3, a4, [a1]
sub a2, v4, fp
mov a3, a2, lsr #11
@@ -135,7 +129,7 @@ function idct_row_armv5te
sub a2, v1, v5
mov a2, a2, lsr #11
add a4, a4, a2, lsl #16
- strd a3, [a1, #8]
+ strd a3, a4, [a1, #8]
ldr pc, [sp], #4
@@ -144,8 +138,8 @@ row_dc_only:
bic a3, a3, #0xe000
mov a3, a3, lsl #3
mov a4, a3
- strd a3, [a1]
- strd a3, [a1, #8]
+ strd a3, a4, [a1]
+ strd a3, a4, [a1, #8]
ldr pc, [sp], #4
endfunc
@@ -178,7 +172,7 @@ endfunc
sub v4, v2, a3
sub v6, v2, a3
add fp, v2, a3
- ldr ip, w26
+ ldr ip, =W26
ldr a4, [a1, #(16*2)]
add v2, v2, a3
@@ -211,9 +205,9 @@ endfunc
stmfd sp!, {v1, v2, v3, v4, v5, v6, v7, fp}
- ldr ip, w13
+ ldr ip, =W13
ldr a4, [a1, #(16*1)]
- ldr lr, w57
+ ldr lr, =W57
smulbb v1, ip, a4
smultb v3, ip, a4
smulbb v5, lr, a4
diff --git a/libavcodec/arm/simple_idct_armv6.S b/libavcodec/arm/simple_idct_armv6.S
index 25393bfd274a1a30a846f962460aa83b787313a1..0c19d267a81080d9abbff0e97778073c446434f7 100644
--- a/libavcodec/arm/simple_idct_armv6.S
+++ b/libavcodec/arm/simple_idct_armv6.S
@@ -40,15 +40,6 @@
#define W46 (W4 | (W6 << 16))
#define W57 (W5 | (W7 << 16))
- .text
- .align
-w13: .long W13
-w26: .long W26
-w42: .long W42
-w42n: .long W42n
-w46: .long W46
-w57: .long W57
-
/*
Compute partial IDCT of single row.
shift = left-shift amount
@@ -60,12 +51,12 @@ w57: .long W57
Output in registers r4--r11
*/
.macro idct_row shift
- ldr lr, w46 /* lr = W4 | (W6 << 16) */
+ ldr lr, =W46 /* lr = W4 | (W6 << 16) */
mov r1, #(1<<(\shift-1))
smlad r4, r2, ip, r1
smlsd r7, r2, ip, r1
- ldr ip, w13 /* ip = W1 | (W3 << 16) */
- ldr r10,w57 /* r10 = W5 | (W7 << 16) */
+ ldr ip, =W13 /* ip = W1 | (W3 << 16) */
+ ldr r10,=W57 /* r10 = W5 | (W7 << 16) */
smlad r5, r2, lr, r1
smlsd r6, r2, lr, r1
@@ -78,11 +69,11 @@ w57: .long W57
smlad r8, lr, r10,r8 /* B0 += W5*row[5] + W7*row[7] */
smusdx r10,r3, r1 /* r10 = B2 = W5*row[1] - W1*row[3] */
- ldr r3, w42n /* r3 = -W4 | (-W2 << 16) */
+ ldr r3, =W42n /* r3 = -W4 | (-W2 << 16) */
smlad r10,lr, r2, r10 /* B2 += W7*row[5] + W3*row[7] */
ldr r2, [r0, #4] /* r2 = row[6,4] */
smlsdx r11,lr, ip, r11 /* B3 += W3*row[5] - W1*row[7] */
- ldr ip, w46 /* ip = W4 | (W6 << 16) */
+ ldr ip, =W46 /* ip = W4 | (W6 << 16) */
smlad r9, lr, r1, r9 /* B1 -= W1*row[5] + W5*row[7] */
smlad r5, r2, r3, r5 /* A1 += -W4*row[4] - W2*row[6] */
@@ -101,12 +92,12 @@ w57: .long W57
Output in registers r4--r11
*/
.macro idct_row4 shift
- ldr lr, w46 /* lr = W4 | (W6 << 16) */
- ldr r10,w57 /* r10 = W5 | (W7 << 16) */
+ ldr lr, =W46 /* lr = W4 | (W6 << 16) */
+ ldr r10,=W57 /* r10 = W5 | (W7 << 16) */
mov r1, #(1<<(\shift-1))
smlad r4, r2, ip, r1
smlsd r7, r2, ip, r1
- ldr ip, w13 /* ip = W1 | (W3 << 16) */
+ ldr ip, =W13 /* ip = W1 | (W3 << 16) */
smlad r5, r2, lr, r1
smlsd r6, r2, lr, r1
smusdx r11,r3, r10 /* r11 = B3 = W7*row[1] - W5*row[3] */
@@ -205,7 +196,7 @@ function idct_row_armv6
cmpeq lr, r2, lsr #16
beq 1f
push {r1}
- ldr ip, w42 /* ip = W4 | (W2 << 16) */
+ ldr ip, =W42 /* ip = W4 | (W2 << 16) */
cmp lr, #0
beq 2f
@@ -249,7 +240,7 @@ function idct_col_armv6
push {r1, lr}
ldr r2, [r0] /* r2 = row[2,0] */
- ldr ip, w42 /* ip = W4 | (W2 << 16) */
+ ldr ip, =W42 /* ip = W4 | (W2 << 16) */
ldr r3, [r0, #8] /* r3 = row[3,1] */
idct_row COL_SHIFT
pop {r1}
@@ -277,7 +268,7 @@ function idct_col_put_armv6
push {r1, r2, lr}
ldr r2, [r0] /* r2 = row[2,0] */
- ldr ip, w42 /* ip = W4 | (W2 << 16) */
+ ldr ip, =W42 /* ip = W4 | (W2 << 16) */
ldr r3, [r0, #8] /* r3 = row[3,1] */
idct_row COL_SHIFT
pop {r1, r2}
@@ -307,7 +298,7 @@ function idct_col_add_armv6
push {r1, r2, lr}
ldr r2, [r0] /* r2 = row[2,0] */
- ldr ip, w42 /* ip = W4 | (W2 << 16) */
+ ldr ip, =W42 /* ip = W4 | (W2 << 16) */
ldr r3, [r0, #8] /* r3 = row[3,1] */
idct_row COL_SHIFT
pop {r1, r2}
diff --git a/libavcodec/arm/simple_idct_neon.S b/libavcodec/arm/simple_idct_neon.S
index 3c048b0d56723e511c472759eb2071887fd8aa49..a8fc13768ea307fe0e41e9c838c76fbbb4e2d482 100644
--- a/libavcodec/arm/simple_idct_neon.S
+++ b/libavcodec/arm/simple_idct_neon.S
@@ -159,8 +159,8 @@ function idct_col4_neon
vmull.s16 q15, d30, w4 /* q15 = W4*(col[0]+(1<<COL_SHIFT-1)/W4)*/
vld1.64 {d8}, [r2,:64], ip /* d5 = col[3] */
- ldrd r4, [r2]
- ldrd r6, [r2, #16]
+ ldrd r4, r5, [r2]
+ ldrd r6, r7, [r2, #16]
orrs r4, r4, r5
idct_col4_top
@@ -176,7 +176,7 @@ function idct_col4_neon
vadd.i32 q14, q14, q7
1: orrs r6, r6, r7
- ldrd r4, [r2, #16]
+ ldrd r4, r5, [r2, #16]
it eq
addeq r2, r2, #16
beq 2f
@@ -188,7 +188,7 @@ function idct_col4_neon
vmlal.s16 q6, d5, w3 /* q6 += W3 * col[5] */
2: orrs r4, r4, r5
- ldrd r4, [r2, #16]
+ ldrd r4, r5, [r2, #16]
it eq
addeq r2, r2, #16
beq 3f
diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 4c72ab36b6ad114e1dad62b403dac2804b8b8d66..bbe1f107683a951569651778584f13230edf2ada 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -1,5 +1,5 @@
/*
- * DCA compatible decoder
+ * DCA compatible decoder data
* Copyright (C) 2004 Gildas Bazin
* Copyright (C) 2004 Benjamin Zores
* Copyright (C) 2006 Benjamin Larsson
@@ -22,2486 +22,12 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <math.h>
-#include <stddef.h>
-#include <stdio.h>
+#include <stdint.h>
-#include "libavutil/common.h"
-#include "libavutil/float_dsp.h"
-#include "libavutil/intmath.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/audioconvert.h"
-#include "avcodec.h"
-#include "dsputil.h"
-#include "fft.h"
-#include "get_bits.h"
-#include "put_bits.h"
-#include "dcadata.h"
-#include "dcahuff.h"
#include "dca.h"
-#include "dca_parser.h"
-#include "synth_filter.h"
-#include "dcadsp.h"
-#include "fmtconvert.h"
-#if ARCH_ARM
-# include "arm/dca.h"
-#endif
-
-//#define TRACE
-
-#define DCA_PRIM_CHANNELS_MAX (7)
-#define DCA_SUBBANDS (64)
-#define DCA_ABITS_MAX (32) /* Should be 28 */
-#define DCA_SUBSUBFRAMES_MAX (4)
-#define DCA_SUBFRAMES_MAX (16)
-#define DCA_BLOCKS_MAX (16)
-#define DCA_LFE_MAX (3)
-#define DCA_CHSETS_MAX (4)
-#define DCA_CHSET_CHANS_MAX (8)
-
-enum DCAMode {
- DCA_MONO = 0,
- DCA_CHANNEL,
- DCA_STEREO,
- DCA_STEREO_SUMDIFF,
- DCA_STEREO_TOTAL,
- DCA_3F,
- DCA_2F1R,
- DCA_3F1R,
- DCA_2F2R,
- DCA_3F2R,
- DCA_4F2R
-};
-
-/* these are unconfirmed but should be mostly correct */
-enum DCAExSSSpeakerMask {
- DCA_EXSS_FRONT_CENTER = 0x0001,
- DCA_EXSS_FRONT_LEFT_RIGHT = 0x0002,
- DCA_EXSS_SIDE_REAR_LEFT_RIGHT = 0x0004,
- DCA_EXSS_LFE = 0x0008,
- DCA_EXSS_REAR_CENTER = 0x0010,
- DCA_EXSS_FRONT_HIGH_LEFT_RIGHT = 0x0020,
- DCA_EXSS_REAR_LEFT_RIGHT = 0x0040,
- DCA_EXSS_FRONT_HIGH_CENTER = 0x0080,
- DCA_EXSS_OVERHEAD = 0x0100,
- DCA_EXSS_CENTER_LEFT_RIGHT = 0x0200,
- DCA_EXSS_WIDE_LEFT_RIGHT = 0x0400,
- DCA_EXSS_SIDE_LEFT_RIGHT = 0x0800,
- DCA_EXSS_LFE2 = 0x1000,
- DCA_EXSS_SIDE_HIGH_LEFT_RIGHT = 0x2000,
- DCA_EXSS_REAR_HIGH_CENTER = 0x4000,
- DCA_EXSS_REAR_HIGH_LEFT_RIGHT = 0x8000,
-};
-
-enum DCAXxchSpeakerMask {
- DCA_XXCH_FRONT_CENTER = 0x0000001,
- DCA_XXCH_FRONT_LEFT = 0x0000002,
- DCA_XXCH_FRONT_RIGHT = 0x0000004,
- DCA_XXCH_SIDE_REAR_LEFT = 0x0000008,
- DCA_XXCH_SIDE_REAR_RIGHT = 0x0000010,
- DCA_XXCH_LFE1 = 0x0000020,
- DCA_XXCH_REAR_CENTER = 0x0000040,
- DCA_XXCH_SURROUND_REAR_LEFT = 0x0000080,
- DCA_XXCH_SURROUND_REAR_RIGHT = 0x0000100,
- DCA_XXCH_SIDE_SURROUND_LEFT = 0x0000200,
- DCA_XXCH_SIDE_SURROUND_RIGHT = 0x0000400,
- DCA_XXCH_FRONT_CENTER_LEFT = 0x0000800,
- DCA_XXCH_FRONT_CENTER_RIGHT = 0x0001000,
- DCA_XXCH_FRONT_HIGH_LEFT = 0x0002000,
- DCA_XXCH_FRONT_HIGH_CENTER = 0x0004000,
- DCA_XXCH_FRONT_HIGH_RIGHT = 0x0008000,
- DCA_XXCH_LFE2 = 0x0010000,
- DCA_XXCH_SIDE_FRONT_LEFT = 0x0020000,
- DCA_XXCH_SIDE_FRONT_RIGHT = 0x0040000,
- DCA_XXCH_OVERHEAD = 0x0080000,
- DCA_XXCH_SIDE_HIGH_LEFT = 0x0100000,
- DCA_XXCH_SIDE_HIGH_RIGHT = 0x0200000,
- DCA_XXCH_REAR_HIGH_CENTER = 0x0400000,
- DCA_XXCH_REAR_HIGH_LEFT = 0x0800000,
- DCA_XXCH_REAR_HIGH_RIGHT = 0x1000000,
- DCA_XXCH_REAR_LOW_CENTER = 0x2000000,
- DCA_XXCH_REAR_LOW_LEFT = 0x4000000,
- DCA_XXCH_REAR_LOW_RIGHT = 0x8000000,
-};
-
-static const uint32_t map_xxch_to_native[28] = {
- AV_CH_FRONT_CENTER,
- AV_CH_FRONT_LEFT,
- AV_CH_FRONT_RIGHT,
- AV_CH_SIDE_LEFT,
- AV_CH_SIDE_RIGHT,
- AV_CH_LOW_FREQUENCY,
- AV_CH_BACK_CENTER,
- AV_CH_BACK_LEFT,
- AV_CH_BACK_RIGHT,
- AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
- AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
- AV_CH_FRONT_LEFT_OF_CENTER,
- AV_CH_FRONT_RIGHT_OF_CENTER,
- AV_CH_TOP_FRONT_LEFT,
- AV_CH_TOP_FRONT_CENTER,
- AV_CH_TOP_FRONT_RIGHT,
- AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
- AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
- AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
- AV_CH_TOP_CENTER, /* overhead */
- AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
- AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
- AV_CH_TOP_BACK_CENTER,
- AV_CH_TOP_BACK_LEFT,
- AV_CH_TOP_BACK_RIGHT,
- AV_CH_BACK_CENTER, /* rear low center -- dup */
- AV_CH_BACK_LEFT, /* rear low left -- dup */
- AV_CH_BACK_RIGHT /* read low right -- dup */
-};
-
-enum DCAExtensionMask {
- DCA_EXT_CORE = 0x001, ///< core in core substream
- DCA_EXT_XXCH = 0x002, ///< XXCh channels extension in core substream
- DCA_EXT_X96 = 0x004, ///< 96/24 extension in core substream
- DCA_EXT_XCH = 0x008, ///< XCh channel extension in core substream
- DCA_EXT_EXSS_CORE = 0x010, ///< core in ExSS (extension substream)
- DCA_EXT_EXSS_XBR = 0x020, ///< extended bitrate extension in ExSS
- DCA_EXT_EXSS_XXCH = 0x040, ///< XXCh channels extension in ExSS
- DCA_EXT_EXSS_X96 = 0x080, ///< 96/24 extension in ExSS
- DCA_EXT_EXSS_LBR = 0x100, ///< low bitrate component in ExSS
- DCA_EXT_EXSS_XLL = 0x200, ///< lossless extension in ExSS
-};
-
-/* -1 are reserved or unknown */
-static const int dca_ext_audio_descr_mask[] = {
- DCA_EXT_XCH,
- -1,
- DCA_EXT_X96,
- DCA_EXT_XCH | DCA_EXT_X96,
- -1,
- -1,
- DCA_EXT_XXCH,
- -1,
-};
-
-/* extensions that reside in core substream */
-#define DCA_CORE_EXTS (DCA_EXT_XCH | DCA_EXT_XXCH | DCA_EXT_X96)
-
-/* Tables for mapping dts channel configurations to libavcodec multichannel api.
- * Some compromises have been made for special configurations. Most configurations
- * are never used so complete accuracy is not needed.
- *
- * L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead.
- * S -> side, when both rear and back are configured move one of them to the side channel
- * OV -> center back
- * All 2 channel configurations -> AV_CH_LAYOUT_STEREO
- */
-static const uint64_t dca_core_channel_layout[] = {
- AV_CH_FRONT_CENTER, ///< 1, A
- AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono)
- AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo)
- AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference)
- AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total)
- AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R
- AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S
- AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S
- AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR
-
- AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
- AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR
-
- AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR
-
- AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
- AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV
-
- AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
- AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR
-
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
- AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
- AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR
-
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
- AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
- AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
-
- AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
- AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
- AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR
-};
-
-static const int8_t dca_lfe_index[] = {
- 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3
-};
-
-static const int8_t dca_channel_reorder_lfe[][9] = {
- { 0, -1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 2, 0, 1, -1, -1, -1, -1, -1, -1},
- { 0, 1, 3, -1, -1, -1, -1, -1, -1},
- { 2, 0, 1, 4, -1, -1, -1, -1, -1},
- { 0, 1, 3, 4, -1, -1, -1, -1, -1},
- { 2, 0, 1, 4, 5, -1, -1, -1, -1},
- { 3, 4, 0, 1, 5, 6, -1, -1, -1},
- { 2, 0, 1, 4, 5, 6, -1, -1, -1},
- { 0, 6, 4, 5, 2, 3, -1, -1, -1},
- { 4, 2, 5, 0, 1, 6, 7, -1, -1},
- { 5, 6, 0, 1, 7, 3, 8, 4, -1},
- { 4, 2, 5, 0, 1, 6, 8, 7, -1},
-};
-
-static const int8_t dca_channel_reorder_lfe_xch[][9] = {
- { 0, 2, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, 3, -1, -1, -1, -1, -1, -1},
- { 0, 1, 3, -1, -1, -1, -1, -1, -1},
- { 0, 1, 3, -1, -1, -1, -1, -1, -1},
- { 0, 1, 3, -1, -1, -1, -1, -1, -1},
- { 2, 0, 1, 4, -1, -1, -1, -1, -1},
- { 0, 1, 3, 4, -1, -1, -1, -1, -1},
- { 2, 0, 1, 4, 5, -1, -1, -1, -1},
- { 0, 1, 4, 5, 3, -1, -1, -1, -1},
- { 2, 0, 1, 5, 6, 4, -1, -1, -1},
- { 3, 4, 0, 1, 6, 7, 5, -1, -1},
- { 2, 0, 1, 4, 5, 6, 7, -1, -1},
- { 0, 6, 4, 5, 2, 3, 7, -1, -1},
- { 4, 2, 5, 0, 1, 7, 8, 6, -1},
- { 5, 6, 0, 1, 8, 3, 9, 4, 7},
- { 4, 2, 5, 0, 1, 6, 9, 8, 7},
-};
-
-static const int8_t dca_channel_reorder_nolfe[][9] = {
- { 0, -1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 2, 0, 1, -1, -1, -1, -1, -1, -1},
- { 0, 1, 2, -1, -1, -1, -1, -1, -1},
- { 2, 0, 1, 3, -1, -1, -1, -1, -1},
- { 0, 1, 2, 3, -1, -1, -1, -1, -1},
- { 2, 0, 1, 3, 4, -1, -1, -1, -1},
- { 2, 3, 0, 1, 4, 5, -1, -1, -1},
- { 2, 0, 1, 3, 4, 5, -1, -1, -1},
- { 0, 5, 3, 4, 1, 2, -1, -1, -1},
- { 3, 2, 4, 0, 1, 5, 6, -1, -1},
- { 4, 5, 0, 1, 6, 2, 7, 3, -1},
- { 3, 2, 4, 0, 1, 5, 7, 6, -1},
-};
-
-static const int8_t dca_channel_reorder_nolfe_xch[][9] = {
- { 0, 1, -1, -1, -1, -1, -1, -1, -1},
- { 0, 1, 2, -1, -1, -1, -1, -1, -1},
- { 0, 1, 2, -1, -1, -1, -1, -1, -1},
- { 0, 1, 2, -1, -1, -1, -1, -1, -1},
- { 0, 1, 2, -1, -1, -1, -1, -1, -1},
- { 2, 0, 1, 3, -1, -1, -1, -1, -1},
- { 0, 1, 2, 3, -1, -1, -1, -1, -1},
- { 2, 0, 1, 3, 4, -1, -1, -1, -1},
- { 0, 1, 3, 4, 2, -1, -1, -1, -1},
- { 2, 0, 1, 4, 5, 3, -1, -1, -1},
- { 2, 3, 0, 1, 5, 6, 4, -1, -1},
- { 2, 0, 1, 3, 4, 5, 6, -1, -1},
- { 0, 5, 3, 4, 1, 2, 6, -1, -1},
- { 3, 2, 4, 0, 1, 6, 7, 5, -1},
- { 4, 5, 0, 1, 7, 2, 8, 3, 6},
- { 3, 2, 4, 0, 1, 5, 8, 7, 6},
-};
-
-#define DCA_DOLBY 101 /* FIXME */
-
-#define DCA_CHANNEL_BITS 6
-#define DCA_CHANNEL_MASK 0x3F
-
-#define DCA_LFE 0x80
-
-#define HEADER_SIZE 14
-
-#define DCA_MAX_FRAME_SIZE 16384
-#define DCA_MAX_EXSS_HEADER_SIZE 4096
-
-#define DCA_BUFFER_PADDING_SIZE 1024
-
-/** Bit allocation */
-typedef struct {
- int offset; ///< code values offset
- int maxbits[8]; ///< max bits in VLC
- int wrap; ///< wrap for get_vlc2()
- VLC vlc[8]; ///< actual codes
-} BitAlloc;
-
-static BitAlloc dca_bitalloc_index; ///< indexes for samples VLC select
-static BitAlloc dca_tmode; ///< transition mode VLCs
-static BitAlloc dca_scalefactor; ///< scalefactor VLCs
-static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs
-
-static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba,
- int idx)
-{
- return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) +
- ba->offset;
-}
-
-typedef struct {
- AVCodecContext *avctx;
- AVFrame frame;
- /* Frame header */
- int frame_type; ///< type of the current frame
- int samples_deficit; ///< deficit sample count
- int crc_present; ///< crc is present in the bitstream
- int sample_blocks; ///< number of PCM sample blocks
- int frame_size; ///< primary frame byte size
- int amode; ///< audio channels arrangement
- int sample_rate; ///< audio sampling rate
- int bit_rate; ///< transmission bit rate
- int bit_rate_index; ///< transmission bit rate index
-
- int downmix; ///< embedded downmix enabled
- int dynrange; ///< embedded dynamic range flag
- int timestamp; ///< embedded time stamp flag
- int aux_data; ///< auxiliary data flag
- int hdcd; ///< source material is mastered in HDCD
- int ext_descr; ///< extension audio descriptor flag
- int ext_coding; ///< extended coding flag
- int aspf; ///< audio sync word insertion flag
- int lfe; ///< low frequency effects flag
- int predictor_history; ///< predictor history flag
- int header_crc; ///< header crc check bytes
- int multirate_inter; ///< multirate interpolator switch
- int version; ///< encoder software revision
- int copy_history; ///< copy history
- int source_pcm_res; ///< source pcm resolution
- int front_sum; ///< front sum/difference flag
- int surround_sum; ///< surround sum/difference flag
- int dialog_norm; ///< dialog normalisation parameter
-
- /* Primary audio coding header */
- int subframes; ///< number of subframes
- int total_channels; ///< number of channels including extensions
- int prim_channels; ///< number of primary audio channels
- int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count
- int vq_start_subband[DCA_PRIM_CHANNELS_MAX]; ///< high frequency vq start subband
- int joint_intensity[DCA_PRIM_CHANNELS_MAX]; ///< joint intensity coding index
- int transient_huffman[DCA_PRIM_CHANNELS_MAX]; ///< transient mode code book
- int scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]; ///< scale factor code book
- int bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]; ///< bit allocation quantizer select
- int quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< quantization index codebook select
- float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment
-
- /* Primary audio coding side information */
- int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes
- int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count
- int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not)
- int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs
- int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index
- int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients)
- int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient)
- int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook
- int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors
- int downmix_coef[DCA_PRIM_CHANNELS_MAX][2]; ///< stereo downmix coefficients
- int dynrange_coef; ///< dynamic range coefficient
-
- int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands
-
- float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data
- int lfe_scale_factor;
-
- /* Subband samples history (for ADPCM) */
- DECLARE_ALIGNED(16, float, subband_samples_hist)[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4];
- DECLARE_ALIGNED(32, float, subband_fir_hist)[DCA_PRIM_CHANNELS_MAX][512];
- DECLARE_ALIGNED(32, float, subband_fir_noidea)[DCA_PRIM_CHANNELS_MAX][32];
- int hist_index[DCA_PRIM_CHANNELS_MAX];
- DECLARE_ALIGNED(32, float, raXin)[32];
-
- int output; ///< type of output
- float scale_bias; ///< output scale
-
- DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8];
- DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256];
- const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1];
-
- uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE];
- int dca_buffer_size; ///< how much data is in the dca_buffer
-
- const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe
- GetBitContext gb;
- /* Current position in DCA frame */
- int current_subframe;
- int current_subsubframe;
-
- int core_ext_mask; ///< present extensions in the core substream
-
- /* XCh extension information */
- int xch_present; ///< XCh extension present and valid
- int xch_base_channel; ///< index of first (only) channel containing XCH data
-
- /* XXCH extension information */
- int xxch_chset;
- int xxch_nbits_spk_mask;
- uint32_t xxch_core_spkmask;
- uint32_t xxch_spk_masks[4]; /* speaker masks, last element is core mask */
- int xxch_chset_nch[4];
- float xxch_dmix_sf[DCA_CHSETS_MAX];
-
- uint32_t xxch_downmix; /* downmix enabled per channel set */
- uint32_t xxch_dmix_embedded; /* lower layer has mix pre-embedded, per chset */
- float xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]; /* worst case sizing */
-
- int8_t xxch_order_tab[32];
- int8_t lfe_index;
-
- /* ExSS header parser */
- int static_fields; ///< static fields present
- int mix_metadata; ///< mixing metadata present
- int num_mix_configs; ///< number of mix out configurations
- int mix_config_num_ch[4]; ///< number of channels in each mix out configuration
-
- int profile;
-
- int debug_flag; ///< used for suppressing repeated error messages output
- AVFloatDSPContext fdsp;
- FFTContext imdct;
- SynthFilterContext synth;
- DCADSPContext dcadsp;
- FmtConvertContext fmt_conv;
-} DCAContext;
-
-static const uint16_t dca_vlc_offs[] = {
- 0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454, 5364,
- 5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492, 5508,
- 5572, 5604, 5668, 5796, 5860, 5892, 6412, 6668, 6796, 7308, 7564,
- 7820, 8076, 8620, 9132, 9388, 9910, 10166, 10680, 11196, 11726, 12240,
- 12752, 13298, 13810, 14326, 14840, 15500, 16022, 16540, 17158, 17678, 18264,
- 18796, 19352, 19926, 20468, 21472, 22398, 23014, 23622,
-};
-
-static av_cold void dca_init_vlcs(void)
-{
- static int vlcs_initialized = 0;
- int i, j, c = 14;
- static VLC_TYPE dca_table[23622][2];
-
- if (vlcs_initialized)
- return;
-
- dca_bitalloc_index.offset = 1;
- dca_bitalloc_index.wrap = 2;
- for (i = 0; i < 5; i++) {
- dca_bitalloc_index.vlc[i].table = &dca_table[dca_vlc_offs[i]];
- dca_bitalloc_index.vlc[i].table_allocated = dca_vlc_offs[i + 1] - dca_vlc_offs[i];
- init_vlc(&dca_bitalloc_index.vlc[i], bitalloc_12_vlc_bits[i], 12,
- bitalloc_12_bits[i], 1, 1,
- bitalloc_12_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
- }
- dca_scalefactor.offset = -64;
- dca_scalefactor.wrap = 2;
- for (i = 0; i < 5; i++) {
- dca_scalefactor.vlc[i].table = &dca_table[dca_vlc_offs[i + 5]];
- dca_scalefactor.vlc[i].table_allocated = dca_vlc_offs[i + 6] - dca_vlc_offs[i + 5];
- init_vlc(&dca_scalefactor.vlc[i], SCALES_VLC_BITS, 129,
- scales_bits[i], 1, 1,
- scales_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
- }
- dca_tmode.offset = 0;
- dca_tmode.wrap = 1;
- for (i = 0; i < 4; i++) {
- dca_tmode.vlc[i].table = &dca_table[dca_vlc_offs[i + 10]];
- dca_tmode.vlc[i].table_allocated = dca_vlc_offs[i + 11] - dca_vlc_offs[i + 10];
- init_vlc(&dca_tmode.vlc[i], tmode_vlc_bits[i], 4,
- tmode_bits[i], 1, 1,
- tmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
- }
-
- for (i = 0; i < 10; i++)
- for (j = 0; j < 7; j++) {
- if (!bitalloc_codes[i][j])
- break;
- dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i];
- dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4);
- dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]];
- dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c];
-
- init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j],
- bitalloc_sizes[i],
- bitalloc_bits[i][j], 1, 1,
- bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC);
- c++;
- }
- vlcs_initialized = 1;
-}
-
-static inline void get_array(GetBitContext *gb, int *dst, int len, int bits)
-{
- while (len--)
- *dst++ = get_bits(gb, bits);
-}
-
-static inline int dca_xxch2index(DCAContext *s, int xxch_ch)
-{
- int i, base, mask;
-
- /* locate channel set containing the channel */
- for (i = -1, base = 0, mask = (s->xxch_core_spkmask & ~DCA_XXCH_LFE1);
- i <= s->xxch_chset && !(mask & xxch_ch); mask = s->xxch_spk_masks[++i])
- base += av_popcount(mask);
-
- return base + av_popcount(mask & (xxch_ch - 1));
-}
-
-static int dca_parse_audio_coding_header(DCAContext *s, int base_channel,
- int xxch)
-{
- int i, j;
- static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 };
- static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 };
- static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 };
- int hdr_pos = 0, hdr_size = 0;
- float sign, mag, scale_factor;
- int this_chans, acc_mask;
- int embedded_downmix;
- int nchans, mask[8];
- int coeff, ichan;
-
- /* xxch has arbitrary sized audio coding headers */
- if (xxch) {
- hdr_pos = get_bits_count(&s->gb);
- hdr_size = get_bits(&s->gb, 7) + 1;
- }
-
- nchans = get_bits(&s->gb, 3) + 1;
- s->total_channels = nchans + base_channel;
- s->prim_channels = s->total_channels;
-
- /* obtain speaker layout mask & downmix coefficients for XXCH */
- if (xxch) {
- acc_mask = s->xxch_core_spkmask;
-
- this_chans = get_bits(&s->gb, s->xxch_nbits_spk_mask - 6) << 6;
- s->xxch_spk_masks[s->xxch_chset] = this_chans;
- s->xxch_chset_nch[s->xxch_chset] = nchans;
-
- for (i = 0; i <= s->xxch_chset; i++)
- acc_mask |= s->xxch_spk_masks[i];
-
- /* check for downmixing information */
- if (get_bits1(&s->gb)) {
- embedded_downmix = get_bits1(&s->gb);
- scale_factor =
- 1.0f / dca_downmix_scale_factors[(get_bits(&s->gb, 6) - 1) << 2];
-
- s->xxch_dmix_sf[s->xxch_chset] = scale_factor;
-
- for (i = base_channel; i < s->prim_channels; i++) {
- s->xxch_downmix |= (1 << i);
- mask[i] = get_bits(&s->gb, s->xxch_nbits_spk_mask);
- }
-
- for (j = base_channel; j < s->prim_channels; j++) {
- memset(s->xxch_dmix_coeff[j], 0, sizeof(s->xxch_dmix_coeff[0]));
- s->xxch_dmix_embedded |= (embedded_downmix << j);
- for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
- if (mask[j] & (1 << i)) {
- if ((1 << i) == DCA_XXCH_LFE1) {
- av_log(s->avctx, AV_LOG_WARNING,
- "DCA-XXCH: dmix to LFE1 not supported.\n");
- continue;
- }
-
- coeff = get_bits(&s->gb, 7);
- sign = (coeff & 64) ? 1.0 : -1.0;
- mag = dca_downmix_scale_factors[((coeff & 63) - 1) << 2];
- ichan = dca_xxch2index(s, 1 << i);
- s->xxch_dmix_coeff[j][ichan] = sign * mag;
- }
- }
- }
- }
- }
-
- if (s->prim_channels > DCA_PRIM_CHANNELS_MAX)
- s->prim_channels = DCA_PRIM_CHANNELS_MAX;
-
-
- for (i = base_channel; i < s->prim_channels; i++) {
- s->subband_activity[i] = get_bits(&s->gb, 5) + 2;
- if (s->subband_activity[i] > DCA_SUBBANDS)
- s->subband_activity[i] = DCA_SUBBANDS;
- }
- for (i = base_channel; i < s->prim_channels; i++) {
- s->vq_start_subband[i] = get_bits(&s->gb, 5) + 1;
- if (s->vq_start_subband[i] > DCA_SUBBANDS)
- s->vq_start_subband[i] = DCA_SUBBANDS;
- }
- get_array(&s->gb, s->joint_intensity + base_channel, s->prim_channels - base_channel, 3);
- get_array(&s->gb, s->transient_huffman + base_channel, s->prim_channels - base_channel, 2);
- get_array(&s->gb, s->scalefactor_huffman + base_channel, s->prim_channels - base_channel, 3);
- get_array(&s->gb, s->bitalloc_huffman + base_channel, s->prim_channels - base_channel, 3);
-
- /* Get codebooks quantization indexes */
- if (!base_channel)
- memset(s->quant_index_huffman, 0, sizeof(s->quant_index_huffman));
- for (j = 1; j < 11; j++)
- for (i = base_channel; i < s->prim_channels; i++)
- s->quant_index_huffman[i][j] = get_bits(&s->gb, bitlen[j]);
-
- /* Get scale factor adjustment */
- for (j = 0; j < 11; j++)
- for (i = base_channel; i < s->prim_channels; i++)
- s->scalefactor_adj[i][j] = 1;
-
- for (j = 1; j < 11; j++)
- for (i = base_channel; i < s->prim_channels; i++)
- if (s->quant_index_huffman[i][j] < thr[j])
- s->scalefactor_adj[i][j] = adj_table[get_bits(&s->gb, 2)];
-
- if (!xxch) {
- if (s->crc_present) {
- /* Audio header CRC check */
- get_bits(&s->gb, 16);
- }
- } else {
- /* Skip to the end of the header, also ignore CRC if present */
- i = get_bits_count(&s->gb);
- if (hdr_pos + 8 * hdr_size > i)
- skip_bits_long(&s->gb, hdr_pos + 8 * hdr_size - i);
- }
-
- s->current_subframe = 0;
- s->current_subsubframe = 0;
-
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes);
- av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels);
- for (i = base_channel; i < s->prim_channels; i++) {
- av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n",
- s->subband_activity[i]);
- av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n",
- s->vq_start_subband[i]);
- av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n",
- s->joint_intensity[i]);
- av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n",
- s->transient_huffman[i]);
- av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n",
- s->scalefactor_huffman[i]);
- av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n",
- s->bitalloc_huffman[i]);
- av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:");
- for (j = 0; j < 11; j++)
- av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:");
- for (j = 0; j < 11; j++)
- av_log(s->avctx, AV_LOG_DEBUG, " %1.3f", s->scalefactor_adj[i][j]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
-#endif
-
- return 0;
-}
-
-static int dca_parse_frame_header(DCAContext *s)
-{
- init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
-
- /* Sync code */
- skip_bits_long(&s->gb, 32);
-
- /* Frame header */
- s->frame_type = get_bits(&s->gb, 1);
- s->samples_deficit = get_bits(&s->gb, 5) + 1;
- s->crc_present = get_bits(&s->gb, 1);
- s->sample_blocks = get_bits(&s->gb, 7) + 1;
- s->frame_size = get_bits(&s->gb, 14) + 1;
- if (s->frame_size < 95)
- return AVERROR_INVALIDDATA;
- s->amode = get_bits(&s->gb, 6);
- s->sample_rate = dca_sample_rates[get_bits(&s->gb, 4)];
- if (!s->sample_rate)
- return AVERROR_INVALIDDATA;
- s->bit_rate_index = get_bits(&s->gb, 5);
- s->bit_rate = dca_bit_rates[s->bit_rate_index];
- if (!s->bit_rate)
- return AVERROR_INVALIDDATA;
-
- s->downmix = get_bits(&s->gb, 1); /* note: this is FixedBit == 0 */
- s->dynrange = get_bits(&s->gb, 1);
- s->timestamp = get_bits(&s->gb, 1);
- s->aux_data = get_bits(&s->gb, 1);
- s->hdcd = get_bits(&s->gb, 1);
- s->ext_descr = get_bits(&s->gb, 3);
- s->ext_coding = get_bits(&s->gb, 1);
- s->aspf = get_bits(&s->gb, 1);
- s->lfe = get_bits(&s->gb, 2);
- s->predictor_history = get_bits(&s->gb, 1);
-
- /* TODO: check CRC */
- if (s->crc_present)
- s->header_crc = get_bits(&s->gb, 16);
-
- s->multirate_inter = get_bits(&s->gb, 1);
- s->version = get_bits(&s->gb, 4);
- s->copy_history = get_bits(&s->gb, 2);
- s->source_pcm_res = get_bits(&s->gb, 3);
- s->front_sum = get_bits(&s->gb, 1);
- s->surround_sum = get_bits(&s->gb, 1);
- s->dialog_norm = get_bits(&s->gb, 4);
-
- /* FIXME: channels mixing levels */
- s->output = s->amode;
- if (s->lfe)
- s->output |= DCA_LFE;
-
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type);
- av_log(s->avctx, AV_LOG_DEBUG, "samples deficit: %i\n", s->samples_deficit);
- av_log(s->avctx, AV_LOG_DEBUG, "crc present: %i\n", s->crc_present);
- av_log(s->avctx, AV_LOG_DEBUG, "sample blocks: %i (%i samples)\n",
- s->sample_blocks, s->sample_blocks * 32);
- av_log(s->avctx, AV_LOG_DEBUG, "frame size: %i bytes\n", s->frame_size);
- av_log(s->avctx, AV_LOG_DEBUG, "amode: %i (%i channels)\n",
- s->amode, dca_channels[s->amode]);
- av_log(s->avctx, AV_LOG_DEBUG, "sample rate: %i Hz\n",
- s->sample_rate);
- av_log(s->avctx, AV_LOG_DEBUG, "bit rate: %i bits/s\n",
- s->bit_rate);
- av_log(s->avctx, AV_LOG_DEBUG, "downmix: %i\n", s->downmix);
- av_log(s->avctx, AV_LOG_DEBUG, "dynrange: %i\n", s->dynrange);
- av_log(s->avctx, AV_LOG_DEBUG, "timestamp: %i\n", s->timestamp);
- av_log(s->avctx, AV_LOG_DEBUG, "aux_data: %i\n", s->aux_data);
- av_log(s->avctx, AV_LOG_DEBUG, "hdcd: %i\n", s->hdcd);
- av_log(s->avctx, AV_LOG_DEBUG, "ext descr: %i\n", s->ext_descr);
- av_log(s->avctx, AV_LOG_DEBUG, "ext coding: %i\n", s->ext_coding);
- av_log(s->avctx, AV_LOG_DEBUG, "aspf: %i\n", s->aspf);
- av_log(s->avctx, AV_LOG_DEBUG, "lfe: %i\n", s->lfe);
- av_log(s->avctx, AV_LOG_DEBUG, "predictor history: %i\n",
- s->predictor_history);
- av_log(s->avctx, AV_LOG_DEBUG, "header crc: %i\n", s->header_crc);
- av_log(s->avctx, AV_LOG_DEBUG, "multirate inter: %i\n",
- s->multirate_inter);
- av_log(s->avctx, AV_LOG_DEBUG, "version number: %i\n", s->version);
- av_log(s->avctx, AV_LOG_DEBUG, "copy history: %i\n", s->copy_history);
- av_log(s->avctx, AV_LOG_DEBUG,
- "source pcm resolution: %i (%i bits/sample)\n",
- s->source_pcm_res, dca_bits_per_sample[s->source_pcm_res]);
- av_log(s->avctx, AV_LOG_DEBUG, "front sum: %i\n", s->front_sum);
- av_log(s->avctx, AV_LOG_DEBUG, "surround sum: %i\n", s->surround_sum);
- av_log(s->avctx, AV_LOG_DEBUG, "dialog norm: %i\n", s->dialog_norm);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
-#endif
-
- /* Primary audio coding header */
- s->subframes = get_bits(&s->gb, 4) + 1;
-
- return dca_parse_audio_coding_header(s, 0, 0);
-}
-
-
-static inline int get_scale(GetBitContext *gb, int level, int value, int log2range)
-{
- if (level < 5) {
- /* huffman encoded */
- value += get_bitalloc(gb, &dca_scalefactor, level);
- value = av_clip(value, 0, (1 << log2range) - 1);
- } else if (level < 8) {
- if (level + 1 > log2range) {
- skip_bits(gb, level + 1 - log2range);
- value = get_bits(gb, log2range);
- } else {
- value = get_bits(gb, level + 1);
- }
- }
- return value;
-}
-
-static int dca_subframe_header(DCAContext *s, int base_channel, int block_index)
-{
- /* Primary audio coding side information */
- int j, k;
-
- if (get_bits_left(&s->gb) < 0)
- return AVERROR_INVALIDDATA;
-
- if (!base_channel) {
- s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1;
- s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3);
- }
-
- for (j = base_channel; j < s->prim_channels; j++) {
- for (k = 0; k < s->subband_activity[j]; k++)
- s->prediction_mode[j][k] = get_bits(&s->gb, 1);
- }
-
- /* Get prediction codebook */
- for (j = base_channel; j < s->prim_channels; j++) {
- for (k = 0; k < s->subband_activity[j]; k++) {
- if (s->prediction_mode[j][k] > 0) {
- /* (Prediction coefficient VQ address) */
- s->prediction_vq[j][k] = get_bits(&s->gb, 12);
- }
- }
- }
-
- /* Bit allocation index */
- for (j = base_channel; j < s->prim_channels; j++) {
- for (k = 0; k < s->vq_start_subband[j]; k++) {
- if (s->bitalloc_huffman[j] == 6)
- s->bitalloc[j][k] = get_bits(&s->gb, 5);
- else if (s->bitalloc_huffman[j] == 5)
- s->bitalloc[j][k] = get_bits(&s->gb, 4);
- else if (s->bitalloc_huffman[j] == 7) {
- av_log(s->avctx, AV_LOG_ERROR,
- "Invalid bit allocation index\n");
- return AVERROR_INVALIDDATA;
- } else {
- s->bitalloc[j][k] =
- get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]);
- }
-
- if (s->bitalloc[j][k] > 26) {
- // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n",
- // j, k, s->bitalloc[j][k]);
- return AVERROR_INVALIDDATA;
- }
- }
- }
-
- /* Transition mode */
- for (j = base_channel; j < s->prim_channels; j++) {
- for (k = 0; k < s->subband_activity[j]; k++) {
- s->transition_mode[j][k] = 0;
- if (s->subsubframes[s->current_subframe] > 1 &&
- k < s->vq_start_subband[j] && s->bitalloc[j][k] > 0) {
- s->transition_mode[j][k] =
- get_bitalloc(&s->gb, &dca_tmode, s->transient_huffman[j]);
- }
- }
- }
-
- if (get_bits_left(&s->gb) < 0)
- return AVERROR_INVALIDDATA;
-
- for (j = base_channel; j < s->prim_channels; j++) {
- const uint32_t *scale_table;
- int scale_sum, log_size;
-
- memset(s->scale_factor[j], 0,
- s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2);
-
- if (s->scalefactor_huffman[j] == 6) {
- scale_table = scale_factor_quant7;
- log_size = 7;
- } else {
- scale_table = scale_factor_quant6;
- log_size = 6;
- }
-
- /* When huffman coded, only the difference is encoded */
- scale_sum = 0;
-
- for (k = 0; k < s->subband_activity[j]; k++) {
- if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) {
- scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
- s->scale_factor[j][k][0] = scale_table[scale_sum];
- }
-
- if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) {
- /* Get second scale factor */
- scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
- s->scale_factor[j][k][1] = scale_table[scale_sum];
- }
- }
- }
-
- /* Joint subband scale factor codebook select */
- for (j = base_channel; j < s->prim_channels; j++) {
- /* Transmitted only if joint subband coding enabled */
- if (s->joint_intensity[j] > 0)
- s->joint_huff[j] = get_bits(&s->gb, 3);
- }
-
- if (get_bits_left(&s->gb) < 0)
- return AVERROR_INVALIDDATA;
-
- /* Scale factors for joint subband coding */
- for (j = base_channel; j < s->prim_channels; j++) {
- int source_channel;
-
- /* Transmitted only if joint subband coding enabled */
- if (s->joint_intensity[j] > 0) {
- int scale = 0;
- source_channel = s->joint_intensity[j] - 1;
-
- /* When huffman coded, only the difference is encoded
- * (is this valid as well for joint scales ???) */
-
- for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) {
- scale = get_scale(&s->gb, s->joint_huff[j], 64 /* bias */, 7);
- s->joint_scale_factor[j][k] = scale; /*joint_scale_table[scale]; */
- }
-
- if (!(s->debug_flag & 0x02)) {
- av_log(s->avctx, AV_LOG_DEBUG,
- "Joint stereo coding not supported\n");
- s->debug_flag |= 0x02;
- }
- }
- }
-
- /* Stereo downmix coefficients */
- if (!base_channel && s->prim_channels > 2) {
- if (s->downmix) {
- for (j = base_channel; j < s->prim_channels; j++) {
- s->downmix_coef[j][0] = get_bits(&s->gb, 7);
- s->downmix_coef[j][1] = get_bits(&s->gb, 7);
- }
- } else {
- int am = s->amode & DCA_CHANNEL_MASK;
- if (am >= FF_ARRAY_ELEMS(dca_default_coeffs)) {
- av_log(s->avctx, AV_LOG_ERROR,
- "Invalid channel mode %d\n", am);
- return AVERROR_INVALIDDATA;
- }
- for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) {
- s->downmix_coef[j][0] = dca_default_coeffs[am][j][0];
- s->downmix_coef[j][1] = dca_default_coeffs[am][j][1];
- }
- }
- }
-
- /* Dynamic range coefficient */
- if (!base_channel && s->dynrange)
- s->dynrange_coef = get_bits(&s->gb, 8);
-
- /* Side information CRC check word */
- if (s->crc_present) {
- get_bits(&s->gb, 16);
- }
-
- /*
- * Primary audio data arrays
- */
-
- /* VQ encoded high frequency subbands */
- for (j = base_channel; j < s->prim_channels; j++)
- for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
- /* 1 vector -> 32 samples */
- s->high_freq_vq[j][k] = get_bits(&s->gb, 10);
-
- /* Low frequency effect data */
- if (!base_channel && s->lfe) {
- int quant7;
- /* LFE samples */
- int lfe_samples = 2 * s->lfe * (4 + block_index);
- int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
- float lfe_scale;
-
- for (j = lfe_samples; j < lfe_end_sample; j++) {
- /* Signed 8 bits int */
- s->lfe_data[j] = get_sbits(&s->gb, 8);
- }
-
- /* Scale factor index */
- quant7 = get_bits(&s->gb, 8);
- if (quant7 > 127) {
- av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n");
- return AVERROR_INVALIDDATA;
- }
- s->lfe_scale_factor = scale_factor_quant7[quant7];
-
- /* Quantization step size * scale factor */
- lfe_scale = 0.035 * s->lfe_scale_factor;
-
- for (j = lfe_samples; j < lfe_end_sample; j++)
- s->lfe_data[j] *= lfe_scale;
- }
-
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n",
- s->subsubframes[s->current_subframe]);
- av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n",
- s->partial_samples[s->current_subframe]);
-
- for (j = base_channel; j < s->prim_channels; j++) {
- av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:");
- for (k = 0; k < s->subband_activity[j]; k++)
- av_log(s->avctx, AV_LOG_DEBUG, " %i", s->prediction_mode[j][k]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
- for (j = base_channel; j < s->prim_channels; j++) {
- for (k = 0; k < s->subband_activity[j]; k++)
- av_log(s->avctx, AV_LOG_DEBUG,
- "prediction coefs: %f, %f, %f, %f\n",
- (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192,
- (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192,
- (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192,
- (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192);
- }
- for (j = base_channel; j < s->prim_channels; j++) {
- av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: ");
- for (k = 0; k < s->vq_start_subband[j]; k++)
- av_log(s->avctx, AV_LOG_DEBUG, "%2.2i ", s->bitalloc[j][k]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
- for (j = base_channel; j < s->prim_channels; j++) {
- av_log(s->avctx, AV_LOG_DEBUG, "Transition mode:");
- for (k = 0; k < s->subband_activity[j]; k++)
- av_log(s->avctx, AV_LOG_DEBUG, " %i", s->transition_mode[j][k]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
- for (j = base_channel; j < s->prim_channels; j++) {
- av_log(s->avctx, AV_LOG_DEBUG, "Scale factor:");
- for (k = 0; k < s->subband_activity[j]; k++) {
- if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0)
- av_log(s->avctx, AV_LOG_DEBUG, " %i", s->scale_factor[j][k][0]);
- if (k < s->vq_start_subband[j] && s->transition_mode[j][k])
- av_log(s->avctx, AV_LOG_DEBUG, " %i(t)", s->scale_factor[j][k][1]);
- }
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
- for (j = base_channel; j < s->prim_channels; j++) {
- if (s->joint_intensity[j] > 0) {
- int source_channel = s->joint_intensity[j] - 1;
- av_log(s->avctx, AV_LOG_DEBUG, "Joint scale factor index:\n");
- for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++)
- av_log(s->avctx, AV_LOG_DEBUG, " %i", s->joint_scale_factor[j][k]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
- }
- if (!base_channel && s->prim_channels > 2 && s->downmix) {
- av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n");
- for (j = 0; j < s->prim_channels; j++) {
- av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j,
- dca_downmix_coeffs[s->downmix_coef[j][0]]);
- av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j,
- dca_downmix_coeffs[s->downmix_coef[j][1]]);
- }
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
- for (j = base_channel; j < s->prim_channels; j++)
- for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
- av_log(s->avctx, AV_LOG_DEBUG, "VQ index: %i\n", s->high_freq_vq[j][k]);
- if (!base_channel && s->lfe) {
- int lfe_samples = 2 * s->lfe * (4 + block_index);
- int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
-
- av_log(s->avctx, AV_LOG_DEBUG, "LFE samples:\n");
- for (j = lfe_samples; j < lfe_end_sample; j++)
- av_log(s->avctx, AV_LOG_DEBUG, " %f", s->lfe_data[j]);
- av_log(s->avctx, AV_LOG_DEBUG, "\n");
- }
-#endif
-
- return 0;
-}
-
-static void qmf_32_subbands(DCAContext *s, int chans,
- float samples_in[32][8], float *samples_out,
- float scale)
-{
- const float *prCoeff;
- int i;
-
- int sb_act = s->subband_activity[chans];
- int subindex;
-
- scale *= sqrt(1 / 8.0);
-
- /* Select filter */
- if (!s->multirate_inter) /* Non-perfect reconstruction */
- prCoeff = fir_32bands_nonperfect;
- else /* Perfect reconstruction */
- prCoeff = fir_32bands_perfect;
-
- for (i = sb_act; i < 32; i++)
- s->raXin[i] = 0.0;
-
- /* Reconstructed channel sample index */
- for (subindex = 0; subindex < 8; subindex++) {
- /* Load in one sample from each subband and clear inactive subbands */
- for (i = 0; i < sb_act; i++) {
- unsigned sign = (i - 1) & 2;
- uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30;
- AV_WN32A(&s->raXin[i], v);
- }
-
- s->synth.synth_filter_float(&s->imdct,
- s->subband_fir_hist[chans],
- &s->hist_index[chans],
- s->subband_fir_noidea[chans], prCoeff,
- samples_out, s->raXin, scale);
- samples_out += 32;
- }
-}
-
-static void lfe_interpolation_fir(DCAContext *s, int decimation_select,
- int num_deci_sample, float *samples_in,
- float *samples_out, float scale)
-{
- /* samples_in: An array holding decimated samples.
- * Samples in current subframe starts from samples_in[0],
- * while samples_in[-1], samples_in[-2], ..., stores samples
- * from last subframe as history.
- *
- * samples_out: An array holding interpolated samples
- */
-
- int decifactor;
- const float *prCoeff;
- int deciindex;
-
- /* Select decimation filter */
- if (decimation_select == 1) {
- decifactor = 64;
- prCoeff = lfe_fir_128;
- } else {
- decifactor = 32;
- prCoeff = lfe_fir_64;
- }
- /* Interpolation */
- for (deciindex = 0; deciindex < num_deci_sample; deciindex++) {
- s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale);
- samples_in++;
- samples_out += 2 * decifactor;
- }
-}
-
-/* downmixing routines */
-#define MIX_REAR1(samples, si1, rs, coef) \
- samples[i] += samples[si1] * coef[rs][0]; \
- samples[i+256] += samples[si1] * coef[rs][1];
-
-#define MIX_REAR2(samples, si1, si2, rs, coef) \
- samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \
- samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1];
-
-#define MIX_FRONT3(samples, coef) \
- t = samples[i + c]; \
- u = samples[i + l]; \
- v = samples[i + r]; \
- samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \
- samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1];
-
-#define DOWNMIX_TO_STEREO(op1, op2) \
- for (i = 0; i < 256; i++) { \
- op1 \
- op2 \
- }
-
-static void dca_downmix(float *samples, int srcfmt,
- int downmix_coef[DCA_PRIM_CHANNELS_MAX][2],
- const int8_t *channel_mapping)
-{
- int c, l, r, sl, sr, s;
- int i;
- float t, u, v;
- float coef[DCA_PRIM_CHANNELS_MAX][2];
-
- for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) {
- coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]];
- coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]];
- }
-
- switch (srcfmt) {
- case DCA_MONO:
- case DCA_CHANNEL:
- case DCA_STEREO_TOTAL:
- case DCA_STEREO_SUMDIFF:
- case DCA_4F2R:
- av_log(NULL, 0, "Not implemented!\n");
- break;
- case DCA_STEREO:
- break;
- case DCA_3F:
- c = channel_mapping[0] * 256;
- l = channel_mapping[1] * 256;
- r = channel_mapping[2] * 256;
- DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), );
- break;
- case DCA_2F1R:
- s = channel_mapping[2] * 256;
- DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), );
- break;
- case DCA_3F1R:
- c = channel_mapping[0] * 256;
- l = channel_mapping[1] * 256;
- r = channel_mapping[2] * 256;
- s = channel_mapping[3] * 256;
- DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
- MIX_REAR1(samples, i + s, 3, coef));
- break;
- case DCA_2F2R:
- sl = channel_mapping[2] * 256;
- sr = channel_mapping[3] * 256;
- DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), );
- break;
- case DCA_3F2R:
- c = channel_mapping[0] * 256;
- l = channel_mapping[1] * 256;
- r = channel_mapping[2] * 256;
- sl = channel_mapping[3] * 256;
- sr = channel_mapping[4] * 256;
- DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
- MIX_REAR2(samples, i + sl, i + sr, 3, coef));
- break;
- }
-}
-
-
-#ifndef decode_blockcodes
-/* Very compact version of the block code decoder that does not use table
- * look-up but is slightly slower */
-static int decode_blockcode(int code, int levels, int *values)
-{
- int i;
- int offset = (levels - 1) >> 1;
-
- for (i = 0; i < 4; i++) {
- int div = FASTDIV(code, levels);
- values[i] = code - offset - div * levels;
- code = div;
- }
-
- return code;
-}
-
-static int decode_blockcodes(int code1, int code2, int levels, int *values)
-{
- return decode_blockcode(code1, levels, values) |
- decode_blockcode(code2, levels, values + 4);
-}
-#endif
-
-static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 };
-static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 };
-
-#ifndef int8x8_fmul_int32
-static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
-{
- float fscale = scale / 16.0;
- int i;
- for (i = 0; i < 8; i++)
- dst[i] = src[i] * fscale;
-}
-#endif
-
-static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
-{
- int k, l;
- int subsubframe = s->current_subsubframe;
-
- const float *quant_step_table;
-
- /* FIXME */
- float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
- LOCAL_ALIGNED_16(int, block, [8]);
-
- /*
- * Audio data
- */
-
- /* Select quantization step size table */
- if (s->bit_rate_index == 0x1f)
- quant_step_table = lossless_quant_d;
- else
- quant_step_table = lossy_quant_d;
-
- for (k = base_channel; k < s->prim_channels; k++) {
- if (get_bits_left(&s->gb) < 0)
- return AVERROR_INVALIDDATA;
-
- for (l = 0; l < s->vq_start_subband[k]; l++) {
- int m;
-
- /* Select the mid-tread linear quantizer */
- int abits = s->bitalloc[k][l];
-
- float quant_step_size = quant_step_table[abits];
-
- /*
- * Determine quantization index code book and its type
- */
-
- /* Select quantization index code book */
- int sel = s->quant_index_huffman[k][abits];
-
- /*
- * Extract bits from the bit stream
- */
- if (!abits) {
- memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0]));
- } else {
- /* Deal with transients */
- int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l];
- float rscale = quant_step_size * s->scale_factor[k][l][sfi] *
- s->scalefactor_adj[k][sel];
-
- if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) {
- if (abits <= 7) {
- /* Block code */
- int block_code1, block_code2, size, levels, err;
-
- size = abits_sizes[abits - 1];
- levels = abits_levels[abits - 1];
-
- block_code1 = get_bits(&s->gb, size);
- block_code2 = get_bits(&s->gb, size);
- err = decode_blockcodes(block_code1, block_code2,
- levels, block);
- if (err) {
- av_log(s->avctx, AV_LOG_ERROR,
- "ERROR: block code look-up failed\n");
- return AVERROR_INVALIDDATA;
- }
- } else {
- /* no coding */
- for (m = 0; m < 8; m++)
- block[m] = get_sbits(&s->gb, abits - 3);
- }
- } else {
- /* Huffman coded */
- for (m = 0; m < 8; m++)
- block[m] = get_bitalloc(&s->gb,
- &dca_smpl_bitalloc[abits], sel);
- }
-
- s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l],
- block, rscale, 8);
- }
-
- /*
- * Inverse ADPCM if in prediction mode
- */
- if (s->prediction_mode[k][l]) {
- int n;
- for (m = 0; m < 8; m++) {
- for (n = 1; n <= 4; n++)
- if (m >= n)
- subband_samples[k][l][m] +=
- (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
- subband_samples[k][l][m - n] / 8192);
- else if (s->predictor_history)
- subband_samples[k][l][m] +=
- (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
- s->subband_samples_hist[k][l][m - n + 4] / 8192);
- }
- }
- }
-
- /*
- * Decode VQ encoded high frequencies
- */
- for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) {
- /* 1 vector -> 32 samples but we only need the 8 samples
- * for this subsubframe. */
- int hfvq = s->high_freq_vq[k][l];
-
- if (!s->debug_flag & 0x01) {
- av_log(s->avctx, AV_LOG_DEBUG,
- "Stream with high frequencies VQ coding\n");
- s->debug_flag |= 0x01;
- }
-
- int8x8_fmul_int32(subband_samples[k][l],
- &high_freq_vq[hfvq][subsubframe * 8],
- s->scale_factor[k][l][0]);
- }
- }
-
- /* Check for DSYNC after subsubframe */
- if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) {
- if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n");
-#endif
- } else {
- av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n");
- }
- }
-
- /* Backup predictor history for adpcm */
- for (k = base_channel; k < s->prim_channels; k++)
- for (l = 0; l < s->vq_start_subband[k]; l++)
- memcpy(s->subband_samples_hist[k][l],
- &subband_samples[k][l][4],
- 4 * sizeof(subband_samples[0][0][0]));
-
- return 0;
-}
-
-static int dca_filter_channels(DCAContext *s, int block_index)
-{
- float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
- int k;
-
- /* 32 subbands QMF */
- for (k = 0; k < s->prim_channels; k++) {
-/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0,
- 0, 8388608.0, 8388608.0 };*/
- qmf_32_subbands(s, k, subband_samples[k],
- &s->samples[256 * s->channel_order_tab[k]],
- M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */);
- }
-
- /* Down mixing */
- if (s->avctx->request_channels == 2 && s->prim_channels > 2) {
- dca_downmix(s->samples, s->amode, s->downmix_coef, s->channel_order_tab);
- }
-
- /* Generate LFE samples for this subsubframe FIXME!!! */
- if (s->output & DCA_LFE) {
- lfe_interpolation_fir(s, s->lfe, 2 * s->lfe,
- s->lfe_data + 2 * s->lfe * (block_index + 4),
- &s->samples[256 * s->lfe_index],
- (1.0 / 256.0) * s->scale_bias);
- /* Outputs 20bits pcm samples */
- }
-
- return 0;
-}
-
-
-static int dca_subframe_footer(DCAContext *s, int base_channel)
-{
- int aux_data_count = 0, i;
-
- /*
- * Unpack optional information
- */
-
- /* presumably optional information only appears in the core? */
- if (!base_channel) {
- if (s->timestamp)
- skip_bits_long(&s->gb, 32);
-
- if (s->aux_data)
- aux_data_count = get_bits(&s->gb, 6);
-
- for (i = 0; i < aux_data_count; i++)
- get_bits(&s->gb, 8);
-
- if (s->crc_present && (s->downmix || s->dynrange))
- get_bits(&s->gb, 16);
- }
-
- return 0;
-}
-
-/**
- * Decode a dca frame block
- *
- * @param s pointer to the DCAContext
- */
-
-static int dca_decode_block(DCAContext *s, int base_channel, int block_index)
-{
- int ret;
-
- /* Sanity check */
- if (s->current_subframe >= s->subframes) {
- av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i",
- s->current_subframe, s->subframes);
- return AVERROR_INVALIDDATA;
- }
-
- if (!s->current_subsubframe) {
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n");
-#endif
- /* Read subframe header */
- if ((ret = dca_subframe_header(s, base_channel, block_index)))
- return ret;
- }
-
- /* Read subsubframe */
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n");
-#endif
- if ((ret = dca_subsubframe(s, base_channel, block_index)))
- return ret;
-
- /* Update state */
- s->current_subsubframe++;
- if (s->current_subsubframe >= s->subsubframes[s->current_subframe]) {
- s->current_subsubframe = 0;
- s->current_subframe++;
- }
- if (s->current_subframe >= s->subframes) {
-#ifdef TRACE
- av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n");
-#endif
- /* Read subframe footer */
- if ((ret = dca_subframe_footer(s, base_channel)))
- return ret;
- }
-
- return 0;
-}
-
-/**
- * Return the number of channels in an ExSS speaker mask (HD)
- */
-static int dca_exss_mask2count(int mask)
+const uint32_t avpriv_dca_sample_rates[16] =
{
- /* count bits that mean speaker pairs twice */
- return av_popcount(mask) +
- av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT |
- DCA_EXSS_FRONT_LEFT_RIGHT |
- DCA_EXSS_FRONT_HIGH_LEFT_RIGHT |
- DCA_EXSS_WIDE_LEFT_RIGHT |
- DCA_EXSS_SIDE_LEFT_RIGHT |
- DCA_EXSS_SIDE_HIGH_LEFT_RIGHT |
- DCA_EXSS_SIDE_REAR_LEFT_RIGHT |
- DCA_EXSS_REAR_LEFT_RIGHT |
- DCA_EXSS_REAR_HIGH_LEFT_RIGHT));
-}
-
-/**
- * Skip mixing coefficients of a single mix out configuration (HD)
- */
-static void dca_exss_skip_mix_coeffs(GetBitContext *gb, int channels, int out_ch)
-{
- int i;
-
- for (i = 0; i < channels; i++) {
- int mix_map_mask = get_bits(gb, out_ch);
- int num_coeffs = av_popcount(mix_map_mask);
- skip_bits_long(gb, num_coeffs * 6);
- }
-}
-
-/**
- * Parse extension substream asset header (HD)
- */
-static int dca_exss_parse_asset_header(DCAContext *s)
-{
- int header_pos = get_bits_count(&s->gb);
- int header_size;
- int channels = 0;
- int embedded_stereo = 0;
- int embedded_6ch = 0;
- int drc_code_present;
- int av_uninit(extensions_mask);
- int i, j;
-
- if (get_bits_left(&s->gb) < 16)
- return -1;
-
- /* We will parse just enough to get to the extensions bitmask with which
- * we can set the profile value. */
-
- header_size = get_bits(&s->gb, 9) + 1;
- skip_bits(&s->gb, 3); // asset index
-
- if (s->static_fields) {
- if (get_bits1(&s->gb))
- skip_bits(&s->gb, 4); // asset type descriptor
- if (get_bits1(&s->gb))
- skip_bits_long(&s->gb, 24); // language descriptor
-
- if (get_bits1(&s->gb)) {
- /* How can one fit 1024 bytes of text here if the maximum value
- * for the asset header size field above was 512 bytes? */
- int text_length = get_bits(&s->gb, 10) + 1;
- if (get_bits_left(&s->gb) < text_length * 8)
- return -1;
- skip_bits_long(&s->gb, text_length * 8); // info text
- }
-
- skip_bits(&s->gb, 5); // bit resolution - 1
- skip_bits(&s->gb, 4); // max sample rate code
- channels = get_bits(&s->gb, 8) + 1;
-
- if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers
- int spkr_remap_sets;
- int spkr_mask_size = 16;
- int num_spkrs[7];
-
- if (channels > 2)
- embedded_stereo = get_bits1(&s->gb);
- if (channels > 6)
- embedded_6ch = get_bits1(&s->gb);
-
- if (get_bits1(&s->gb)) {
- spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
- skip_bits(&s->gb, spkr_mask_size); // spkr activity mask
- }
-
- spkr_remap_sets = get_bits(&s->gb, 3);
-
- for (i = 0; i < spkr_remap_sets; i++) {
- /* std layout mask for each remap set */
- num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size));
- }
-
- for (i = 0; i < spkr_remap_sets; i++) {
- int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1;
- if (get_bits_left(&s->gb) < 0)
- return -1;
-
- for (j = 0; j < num_spkrs[i]; j++) {
- int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps);
- int num_dec_ch = av_popcount(remap_dec_ch_mask);
- skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes
- }
- }
-
- } else {
- skip_bits(&s->gb, 3); // representation type
- }
- }
-
- drc_code_present = get_bits1(&s->gb);
- if (drc_code_present)
- get_bits(&s->gb, 8); // drc code
-
- if (get_bits1(&s->gb))
- skip_bits(&s->gb, 5); // dialog normalization code
-
- if (drc_code_present && embedded_stereo)
- get_bits(&s->gb, 8); // drc stereo code
-
- if (s->mix_metadata && get_bits1(&s->gb)) {
- skip_bits(&s->gb, 1); // external mix
- skip_bits(&s->gb, 6); // post mix gain code
-
- if (get_bits(&s->gb, 2) != 3) // mixer drc code
- skip_bits(&s->gb, 3); // drc limit
- else
- skip_bits(&s->gb, 8); // custom drc code
-
- if (get_bits1(&s->gb)) // channel specific scaling
- for (i = 0; i < s->num_mix_configs; i++)
- skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes
- else
- skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes
-
- for (i = 0; i < s->num_mix_configs; i++) {
- if (get_bits_left(&s->gb) < 0)
- return -1;
- dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]);
- if (embedded_6ch)
- dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]);
- if (embedded_stereo)
- dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]);
- }
- }
-
- switch (get_bits(&s->gb, 2)) {
- case 0: extensions_mask = get_bits(&s->gb, 12); break;
- case 1: extensions_mask = DCA_EXT_EXSS_XLL; break;
- case 2: extensions_mask = DCA_EXT_EXSS_LBR; break;
- case 3: extensions_mask = 0; /* aux coding */ break;
- }
-
- /* not parsed further, we were only interested in the extensions mask */
-
- if (get_bits_left(&s->gb) < 0)
- return -1;
-
- if (get_bits_count(&s->gb) - header_pos > header_size * 8) {
- av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n");
- return -1;
- }
- skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb));
-
- if (extensions_mask & DCA_EXT_EXSS_XLL)
- s->profile = FF_PROFILE_DTS_HD_MA;
- else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 |
- DCA_EXT_EXSS_XXCH))
- s->profile = FF_PROFILE_DTS_HD_HRA;
-
- if (!(extensions_mask & DCA_EXT_CORE))
- av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n");
- if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask)
- av_log(s->avctx, AV_LOG_WARNING,
- "DTS extensions detection mismatch (%d, %d)\n",
- extensions_mask & DCA_CORE_EXTS, s->core_ext_mask);
-
- return 0;
-}
-
-static int dca_xbr_parse_frame(DCAContext *s)
-{
- int scale_table_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS][2];
- int active_bands[DCA_CHSETS_MAX][DCA_CHSET_CHANS_MAX];
- int abits_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS];
- int anctemp[DCA_CHSET_CHANS_MAX];
- int chset_fsize[DCA_CHSETS_MAX];
- int n_xbr_ch[DCA_CHSETS_MAX];
- int hdr_size, num_chsets, xbr_tmode, hdr_pos;
- int i, j, k, l, chset, chan_base;
-
- av_log(s->avctx, AV_LOG_DEBUG, "DTS-XBR: decoding XBR extension\n");
-
- /* get bit position of sync header */
- hdr_pos = get_bits_count(&s->gb) - 32;
-
- hdr_size = get_bits(&s->gb, 6) + 1;
- num_chsets = get_bits(&s->gb, 2) + 1;
-
- for(i = 0; i < num_chsets; i++)
- chset_fsize[i] = get_bits(&s->gb, 14) + 1;
-
- xbr_tmode = get_bits1(&s->gb);
-
- for(i = 0; i < num_chsets; i++) {
- n_xbr_ch[i] = get_bits(&s->gb, 3) + 1;
- k = get_bits(&s->gb, 2) + 5;
- for(j = 0; j < n_xbr_ch[i]; j++)
- active_bands[i][j] = get_bits(&s->gb, k) + 1;
- }
-
- /* skip to the end of the header */
- i = get_bits_count(&s->gb);
- if(hdr_pos + hdr_size * 8 > i)
- skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
-
- /* loop over the channel data sets */
- /* only decode as many channels as we've decoded base data for */
- for(chset = 0, chan_base = 0;
- chset < num_chsets && chan_base + n_xbr_ch[chset] <= s->prim_channels;
- chan_base += n_xbr_ch[chset++]) {
- int start_posn = get_bits_count(&s->gb);
- int subsubframe = 0;
- int subframe = 0;
-
- /* loop over subframes */
- for (k = 0; k < (s->sample_blocks / 8); k++) {
- /* parse header if we're on first subsubframe of a block */
- if(subsubframe == 0) {
- /* Parse subframe header */
- for(i = 0; i < n_xbr_ch[chset]; i++) {
- anctemp[i] = get_bits(&s->gb, 2) + 2;
- }
-
- for(i = 0; i < n_xbr_ch[chset]; i++) {
- get_array(&s->gb, abits_high[i], active_bands[chset][i], anctemp[i]);
- }
-
- for(i = 0; i < n_xbr_ch[chset]; i++) {
- anctemp[i] = get_bits(&s->gb, 3);
- if(anctemp[i] < 1) {
- av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: SYNC ERROR\n");
- return AVERROR_INVALIDDATA;
- }
- }
-
- /* generate scale factors */
- for(i = 0; i < n_xbr_ch[chset]; i++) {
- const uint32_t *scale_table;
- int nbits;
-
- if (s->scalefactor_huffman[chan_base+i] == 6) {
- scale_table = scale_factor_quant7;
- } else {
- scale_table = scale_factor_quant6;
- }
-
- nbits = anctemp[i];
-
- for(j = 0; j < active_bands[chset][i]; j++) {
- if(abits_high[i][j] > 0) {
- scale_table_high[i][j][0] =
- scale_table[get_bits(&s->gb, nbits)];
-
- if(xbr_tmode && s->transition_mode[i][j]) {
- scale_table_high[i][j][1] =
- scale_table[get_bits(&s->gb, nbits)];
- }
- }
- }
- }
- }
-
- /* decode audio array for this block */
- for(i = 0; i < n_xbr_ch[chset]; i++) {
- for(j = 0; j < active_bands[chset][i]; j++) {
- const int xbr_abits = abits_high[i][j];
- const float quant_step_size = lossless_quant_d[xbr_abits];
- const int sfi = xbr_tmode && s->transition_mode[i][j] && subsubframe >= s->transition_mode[i][j];
- const float rscale = quant_step_size * scale_table_high[i][j][sfi];
- float *subband_samples = s->subband_samples[k][chan_base+i][j];
- int block[8];
-
- if(xbr_abits <= 0)
- continue;
-
- if(xbr_abits > 7) {
- get_array(&s->gb, block, 8, xbr_abits - 3);
- } else {
- int block_code1, block_code2, size, levels, err;
-
- size = abits_sizes[xbr_abits - 1];
- levels = abits_levels[xbr_abits - 1];
-
- block_code1 = get_bits(&s->gb, size);
- block_code2 = get_bits(&s->gb, size);
- err = decode_blockcodes(block_code1, block_code2,
- levels, block);
- if (err) {
- av_log(s->avctx, AV_LOG_ERROR,
- "ERROR: DTS-XBR: block code look-up failed\n");
- return AVERROR_INVALIDDATA;
- }
- }
-
- /* scale & sum into subband */
- for(l = 0; l < 8; l++)
- subband_samples[l] += (float)block[l] * rscale;
- }
- }
-
- /* check DSYNC marker */
- if(s->aspf || subsubframe == s->subsubframes[subframe] - 1) {
- if(get_bits(&s->gb, 16) != 0xffff) {
- av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: Didn't get subframe DSYNC\n");
- return AVERROR_INVALIDDATA;
- }
- }
-
- /* advance sub-sub-frame index */
- if(++subsubframe >= s->subsubframes[subframe]) {
- subsubframe = 0;
- subframe++;
- }
- }
-
- /* skip to next channel set */
- i = get_bits_count(&s->gb);
- if(start_posn + chset_fsize[chset] * 8 != i) {
- j = start_posn + chset_fsize[chset] * 8 - i;
- if(j < 0 || j >= 8)
- av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: end of channel set,"
- " skipping further than expected (%d bits)\n", j);
- skip_bits_long(&s->gb, j);
- }
- }
-
- return 0;
-}
-
-/* parse initial header for XXCH and dump details */
-static int dca_xxch_decode_frame(DCAContext *s)
-{
- int hdr_size, chhdr_crc, spkmsk_bits, num_chsets, core_spk, hdr_pos;
- int i, chset, base_channel, chstart, fsize[8];
-
- /* assume header word has already been parsed */
- hdr_pos = get_bits_count(&s->gb) - 32;
- hdr_size = get_bits(&s->gb, 6) + 1;
- chhdr_crc = get_bits1(&s->gb);
- spkmsk_bits = get_bits(&s->gb, 5) + 1;
- num_chsets = get_bits(&s->gb, 2) + 1;
-
- for (i = 0; i < num_chsets; i++)
- fsize[i] = get_bits(&s->gb, 14) + 1;
-
- core_spk = get_bits(&s->gb, spkmsk_bits);
- s->xxch_core_spkmask = core_spk;
- s->xxch_nbits_spk_mask = spkmsk_bits;
- s->xxch_downmix = 0;
- s->xxch_dmix_embedded = 0;
-
- /* skip to the end of the header */
- i = get_bits_count(&s->gb);
- if (hdr_pos + hdr_size * 8 > i)
- skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
-
- for (chset = 0; chset < num_chsets; chset++) {
- chstart = get_bits_count(&s->gb);
- base_channel = s->prim_channels;
- s->xxch_chset = chset;
-
- /* XXCH and Core headers differ, see 6.4.2 "XXCH Channel Set Header" vs.
- 5.3.2 "Primary Audio Coding Header", DTS Spec 1.3.1 */
- dca_parse_audio_coding_header(s, base_channel, 1);
-
- /* decode channel data */
- for (i = 0; i < (s->sample_blocks / 8); i++) {
- if (dca_decode_block(s, base_channel, i)) {
- av_log(s->avctx, AV_LOG_ERROR,
- "Error decoding DTS-XXCH extension\n");
- continue;
- }
- }
-
- /* skip to end of this section */
- i = get_bits_count(&s->gb);
- if (chstart + fsize[chset] * 8 > i)
- skip_bits_long(&s->gb, chstart + fsize[chset] * 8 - i);
- }
- s->xxch_chset = num_chsets;
-
- return 0;
-}
-
-/**
- * Parse extension substream header (HD)
- */
-static void dca_exss_parse_header(DCAContext *s)
-{
- int asset_size[8];
- int ss_index;
- int blownup;
- int num_audiop = 1;
- int num_assets = 1;
- int active_ss_mask[8];
- int i, j;
- int start_posn;
- int hdrsize;
- uint32_t mkr;
-
- if (get_bits_left(&s->gb) < 52)
- return;
-
- start_posn = get_bits_count(&s->gb) - 32;
-
- skip_bits(&s->gb, 8); // user data
- ss_index = get_bits(&s->gb, 2);
-
- blownup = get_bits1(&s->gb);
- hdrsize = get_bits(&s->gb, 8 + 4 * blownup) + 1; // header_size
- skip_bits(&s->gb, 16 + 4 * blownup); // hd_size
-
- s->static_fields = get_bits1(&s->gb);
- if (s->static_fields) {
- skip_bits(&s->gb, 2); // reference clock code
- skip_bits(&s->gb, 3); // frame duration code
-
- if (get_bits1(&s->gb))
- skip_bits_long(&s->gb, 36); // timestamp
-
- /* a single stream can contain multiple audio assets that can be
- * combined to form multiple audio presentations */
-
- num_audiop = get_bits(&s->gb, 3) + 1;
- if (num_audiop > 1) {
- av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio presentations.");
- /* ignore such streams for now */
- return;
- }
-
- num_assets = get_bits(&s->gb, 3) + 1;
- if (num_assets > 1) {
- av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio assets.");
- /* ignore such streams for now */
- return;
- }
-
- for (i = 0; i < num_audiop; i++)
- active_ss_mask[i] = get_bits(&s->gb, ss_index + 1);
-
- for (i = 0; i < num_audiop; i++)
- for (j = 0; j <= ss_index; j++)
- if (active_ss_mask[i] & (1 << j))
- skip_bits(&s->gb, 8); // active asset mask
-
- s->mix_metadata = get_bits1(&s->gb);
- if (s->mix_metadata) {
- int mix_out_mask_size;
-
- skip_bits(&s->gb, 2); // adjustment level
- mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
- s->num_mix_configs = get_bits(&s->gb, 2) + 1;
-
- for (i = 0; i < s->num_mix_configs; i++) {
- int mix_out_mask = get_bits(&s->gb, mix_out_mask_size);
- s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask);
- }
- }
- }
-
- for (i = 0; i < num_assets; i++)
- asset_size[i] = get_bits_long(&s->gb, 16 + 4 * blownup);
-
- for (i = 0; i < num_assets; i++) {
- if (dca_exss_parse_asset_header(s))
- return;
- }
-
- /* not parsed further, we were only interested in the extensions mask
- * from the asset header */
-
- if (num_assets > 0) {
- j = get_bits_count(&s->gb);
- if (start_posn + hdrsize * 8 > j)
- skip_bits_long(&s->gb, start_posn + hdrsize * 8 - j);
-
- for (i = 0; i < num_assets; i++) {
- start_posn = get_bits_count(&s->gb);
- mkr = get_bits_long(&s->gb, 32);
-
- /* parse extensions that we know about */
- if (mkr == 0x655e315e) {
- dca_xbr_parse_frame(s);
- } else if (mkr == 0x47004a03) {
- dca_xxch_decode_frame(s);
- s->core_ext_mask |= DCA_EXT_XXCH; /* xxx use for chan reordering */
- } else {
- av_log(s->avctx, AV_LOG_DEBUG,
- "DTS-ExSS: unknown marker = 0x%08x\n", mkr);
- }
-
- /* skip to end of block */
- j = get_bits_count(&s->gb);
- if (start_posn + asset_size[i] * 8 > j)
- skip_bits_long(&s->gb, start_posn + asset_size[i] * 8 - j);
- }
- }
-}
-
-/**
- * Main frame decoding function
- * FIXME add arguments
- */
-static int dca_decode_frame(AVCodecContext *avctx, void *data,
- int *got_frame_ptr, AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- int channel_mask;
- int channel_layout;
- int lfe_samples;
- int num_core_channels = 0;
- int i, ret;
- float *samples_flt;
- float *src_chan;
- float *dst_chan;
- int16_t *samples_s16;
- DCAContext *s = avctx->priv_data;
- int core_ss_end;
- int channels;
- float scale;
- int achan;
- int chset;
- int mask;
- int lavc;
- int posn;
- int j, k;
- int ch;
- int endch;
-
- s->xch_present = 0;
-
- s->dca_buffer_size = ff_dca_convert_bitstream(buf, buf_size, s->dca_buffer,
- DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE);
- if (s->dca_buffer_size == AVERROR_INVALIDDATA) {
- av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n");
- return AVERROR_INVALIDDATA;
- }
-
- init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
- if ((ret = dca_parse_frame_header(s)) < 0) {
- //seems like the frame is corrupt, try with the next one
- return ret;
- }
- //set AVCodec values with parsed data
- avctx->sample_rate = s->sample_rate;
- avctx->bit_rate = s->bit_rate;
-
- s->profile = FF_PROFILE_DTS;
-
- for (i = 0; i < (s->sample_blocks / 8); i++) {
- if ((ret = dca_decode_block(s, 0, i))) {
- av_log(avctx, AV_LOG_ERROR, "error decoding block\n");
- return ret;
- }
- }
-
- /* record number of core channels incase less than max channels are requested */
- num_core_channels = s->prim_channels;
-
- if (s->ext_coding)
- s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr];
- else
- s->core_ext_mask = 0;
-
- core_ss_end = FFMIN(s->frame_size, s->dca_buffer_size) * 8;
-
- /* only scan for extensions if ext_descr was unknown or indicated a
- * supported XCh extension */
- if (s->core_ext_mask < 0 || s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) {
-
- /* if ext_descr was unknown, clear s->core_ext_mask so that the
- * extensions scan can fill it up */
- s->core_ext_mask = FFMAX(s->core_ext_mask, 0);
-
- /* extensions start at 32-bit boundaries into bitstream */
- skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
-
- while (core_ss_end - get_bits_count(&s->gb) >= 32) {
- uint32_t bits = get_bits_long(&s->gb, 32);
-
- switch (bits) {
- case 0x5a5a5a5a: {
- int ext_amode, xch_fsize;
-
- s->xch_base_channel = s->prim_channels;
-
- /* validate sync word using XCHFSIZE field */
- xch_fsize = show_bits(&s->gb, 10);
- if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) &&
- (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1))
- continue;
-
- /* skip length-to-end-of-frame field for the moment */
- skip_bits(&s->gb, 10);
-
- s->core_ext_mask |= DCA_EXT_XCH;
-
- /* extension amode(number of channels in extension) should be 1 */
- /* AFAIK XCh is not used for more channels */
- if ((ext_amode = get_bits(&s->gb, 4)) != 1) {
- av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not"
- " supported!\n", ext_amode);
- continue;
- }
-
- /* much like core primary audio coding header */
- dca_parse_audio_coding_header(s, s->xch_base_channel, 0);
-
- for (i = 0; i < (s->sample_blocks / 8); i++)
- if ((ret = dca_decode_block(s, s->xch_base_channel, i))) {
- av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n");
- continue;
- }
-
- s->xch_present = 1;
- break;
- }
- case 0x47004a03:
- /* XXCh: extended channels */
- /* usually found either in core or HD part in DTS-HD HRA streams,
- * but not in DTS-ES which contains XCh extensions instead */
- s->core_ext_mask |= DCA_EXT_XXCH;
- dca_xxch_decode_frame(s);
- break;
-
- case 0x1d95f262: {
- int fsize96 = show_bits(&s->gb, 12) + 1;
- if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96)
- continue;
-
- av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n",
- get_bits_count(&s->gb));
- skip_bits(&s->gb, 12);
- av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96);
- av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4));
-
- s->core_ext_mask |= DCA_EXT_X96;
- break;
- }
- }
-
- skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
- }
- } else {
- /* no supported extensions, skip the rest of the core substream */
- skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb));
- }
-
- if (s->core_ext_mask & DCA_EXT_X96)
- s->profile = FF_PROFILE_DTS_96_24;
- else if (s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH))
- s->profile = FF_PROFILE_DTS_ES;
-
- /* check for ExSS (HD part) */
- if (s->dca_buffer_size - s->frame_size > 32 &&
- get_bits_long(&s->gb, 32) == DCA_HD_MARKER)
- dca_exss_parse_header(s);
-
- avctx->profile = s->profile;
-
- channels = s->prim_channels + !!s->lfe;
-
- /* If we have XXCH then the channel layout is managed differently */
- /* note that XLL will also have another way to do things */
- if (!(s->core_ext_mask & DCA_EXT_XXCH)
- || (s->core_ext_mask & DCA_EXT_XXCH && avctx->request_channels > 0
- && avctx->request_channels
- < num_core_channels + !!s->lfe + s->xxch_chset_nch[0]))
- { /* xxx should also do MA extensions */
- if (s->amode < 16) {
- avctx->channel_layout = dca_core_channel_layout[s->amode];
-
- if (s->xch_present && (!avctx->request_channels ||
- avctx->request_channels
- > num_core_channels + !!s->lfe)) {
- avctx->channel_layout |= AV_CH_BACK_CENTER;
- if (s->lfe) {
- avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
- s->channel_order_tab = dca_channel_reorder_lfe_xch[s->amode];
- } else {
- s->channel_order_tab = dca_channel_reorder_nolfe_xch[s->amode];
- }
- } else {
- channels = num_core_channels + !!s->lfe;
- s->xch_present = 0; /* disable further xch processing */
- if (s->lfe) {
- avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
- s->channel_order_tab = dca_channel_reorder_lfe[s->amode];
- } else
- s->channel_order_tab = dca_channel_reorder_nolfe[s->amode];
- }
-
- if (channels > !!s->lfe &&
- s->channel_order_tab[channels - 1 - !!s->lfe] < 0)
- return AVERROR_INVALIDDATA;
-
- if (avctx->request_channels == 2 && s->prim_channels > 2) {
- channels = 2;
- s->output = DCA_STEREO;
- avctx->channel_layout = AV_CH_LAYOUT_STEREO;
- }
- else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) {
- static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
- s->channel_order_tab = dca_channel_order_native;
- }
- s->lfe_index = dca_lfe_index[s->amode];
- } else {
- av_log(avctx, AV_LOG_ERROR,
- "Non standard configuration %d !\n", s->amode);
- return AVERROR_INVALIDDATA;
- }
-
- s->xxch_downmix = 0;
- } else {
- /* we only get here if an XXCH channel set can be added to the mix */
- channel_mask = s->xxch_core_spkmask;
-
- if (avctx->request_channels > 0
- && avctx->request_channels < s->prim_channels) {
- channels = num_core_channels + !!s->lfe;
- for (i = 0; i < s->xxch_chset && channels + s->xxch_chset_nch[i]
- <= avctx->request_channels; i++) {
- channels += s->xxch_chset_nch[i];
- channel_mask |= s->xxch_spk_masks[i];
- }
- } else {
- channels = s->prim_channels + !!s->lfe;
- for (i = 0; i < s->xxch_chset; i++) {
- channel_mask |= s->xxch_spk_masks[i];
- }
- }
-
- /* Given the DTS spec'ed channel mask, generate an avcodec version */
- channel_layout = 0;
- for (i = 0; i < s->xxch_nbits_spk_mask; ++i) {
- if (channel_mask & (1 << i)) {
- channel_layout |= map_xxch_to_native[i];
- }
- }
-
- /* make sure that we have managed to get equivelant dts/avcodec channel
- * masks in some sense -- unfortunately some channels could overlap */
- if (av_popcount(channel_mask) != av_popcount(channel_layout)) {
- av_log(avctx, AV_LOG_DEBUG,
- "DTS-XXCH: Inconsistant avcodec/dts channel layouts\n");
- return AVERROR_INVALIDDATA;
- }
-
- avctx->channel_layout = channel_layout;
-
- if (!(avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE)) {
- /* Estimate DTS --> avcodec ordering table */
- for (chset = -1, j = 0; chset < s->xxch_chset; ++chset) {
- mask = chset >= 0 ? s->xxch_spk_masks[chset]
- : s->xxch_core_spkmask;
- for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
- if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) {
- lavc = map_xxch_to_native[i];
- posn = av_popcount(channel_layout & (lavc - 1));
- s->xxch_order_tab[j++] = posn;
- }
- }
- }
-
- s->lfe_index = av_popcount(channel_layout & (AV_CH_LOW_FREQUENCY-1));
- } else { /* native ordering */
- for (i = 0; i < channels; i++)
- s->xxch_order_tab[i] = i;
-
- s->lfe_index = channels - 1;
- }
-
- s->channel_order_tab = s->xxch_order_tab;
- }
-
- if (avctx->channels != channels) {
- if (avctx->channels)
- av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels);
- avctx->channels = channels;
- }
-
- /* get output buffer */
- s->frame.nb_samples = 256 * (s->sample_blocks / 8);
- if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
- return ret;
- }
- samples_flt = (float *) s->frame.data[0];
- samples_s16 = (int16_t *) s->frame.data[0];
-
- /* filter to get final output */
- for (i = 0; i < (s->sample_blocks / 8); i++) {
- dca_filter_channels(s, i);
-
- /* If this was marked as a DTS-ES stream we need to subtract back- */
- /* channel from SL & SR to remove matrixed back-channel signal */
- if ((s->source_pcm_res & 1) && s->xch_present) {
- float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256;
- float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256;
- float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256;
- s->fdsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256);
- s->fdsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256);
- }
-
- /* If stream contains XXCH, we might need to undo an embedded downmix */
- if (s->xxch_dmix_embedded) {
- /* Loop over channel sets in turn */
- ch = num_core_channels;
- for (chset = 0; chset < s->xxch_chset; chset++) {
- endch = ch + s->xxch_chset_nch[chset];
- mask = s->xxch_dmix_embedded;
-
- /* undo downmix */
- for (j = ch; j < endch; j++) {
- if (mask & (1 << j)) { /* this channel has been mixed-out */
- src_chan = s->samples + s->channel_order_tab[j] * 256;
- for (k = 0; k < endch; k++) {
- achan = s->channel_order_tab[k];
- scale = s->xxch_dmix_coeff[j][k];
- if (scale != 0.0) {
- dst_chan = s->samples + achan * 256;
- s->fdsp.vector_fmac_scalar(dst_chan, src_chan,
- -scale, 256);
- }
- }
- }
- }
-
- /* if a downmix has been embedded then undo the pre-scaling */
- if ((mask & (1 << ch)) && s->xxch_dmix_sf[chset] != 1.0f) {
- scale = s->xxch_dmix_sf[chset];
-
- for (j = 0; j < ch; j++) {
- src_chan = s->samples + s->channel_order_tab[j] * 256;
- for (k = 0; k < 256; k++)
- src_chan[k] *= scale;
- }
-
- /* LFE channel is always part of core, scale if it exists */
- if (s->lfe) {
- src_chan = s->samples + s->lfe_index * 256;
- for (k = 0; k < 256; k++)
- src_chan[k] *= scale;
- }
- }
-
- ch = endch;
- }
-
- }
-
- if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) {
- s->fmt_conv.float_interleave(samples_flt, s->samples_chanptr, 256,
- channels);
- samples_flt += 256 * channels;
- } else {
- s->fmt_conv.float_to_int16_interleave(samples_s16,
- s->samples_chanptr, 256,
- channels);
- samples_s16 += 256 * channels;
- }
- }
-
- /* update lfe history */
- lfe_samples = 2 * s->lfe * (s->sample_blocks / 8);
- for (i = 0; i < 2 * s->lfe * 4; i++)
- s->lfe_data[i] = s->lfe_data[i + lfe_samples];
-
- *got_frame_ptr = 1;
- *(AVFrame *) data = s->frame;
-
- return buf_size;
-}
-
-
-
-/**
- * DCA initialization
- *
- * @param avctx pointer to the AVCodecContext
- */
-
-static av_cold int dca_decode_init(AVCodecContext *avctx)
-{
- DCAContext *s = avctx->priv_data;
- int i;
-
- s->avctx = avctx;
- dca_init_vlcs();
-
- avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
- ff_mdct_init(&s->imdct, 6, 1, 1.0);
- ff_synth_filter_init(&s->synth);
- ff_dcadsp_init(&s->dcadsp);
- ff_fmt_convert_init(&s->fmt_conv, avctx);
-
- for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++)
- s->samples_chanptr[i] = s->samples + i * 256;
-
- if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) {
- avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
- s->scale_bias = 1.0 / 32768.0;
- } else {
- avctx->sample_fmt = AV_SAMPLE_FMT_S16;
- s->scale_bias = 1.0;
- }
-
- /* allow downmixing to stereo */
- if (avctx->channels > 0 && avctx->request_channels < avctx->channels &&
- avctx->request_channels == 2) {
- avctx->channels = avctx->request_channels;
- }
-
- avcodec_get_frame_defaults(&s->frame);
- avctx->coded_frame = &s->frame;
-
- return 0;
-}
-
-static av_cold int dca_decode_end(AVCodecContext *avctx)
-{
- DCAContext *s = avctx->priv_data;
- ff_mdct_end(&s->imdct);
- return 0;
-}
-
-static const AVProfile profiles[] = {
- { FF_PROFILE_DTS, "DTS" },
- { FF_PROFILE_DTS_ES, "DTS-ES" },
- { FF_PROFILE_DTS_96_24, "DTS 96/24" },
- { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" },
- { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" },
- { FF_PROFILE_UNKNOWN },
-};
-
-AVCodec ff_dca_decoder = {
- .name = "dca",
- .type = AVMEDIA_TYPE_AUDIO,
- .id = CODEC_ID_DTS,
- .priv_data_size = sizeof(DCAContext),
- .init = dca_decode_init,
- .decode = dca_decode_frame,
- .close = dca_decode_end,
- .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"),
- .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1,
- .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
- AV_SAMPLE_FMT_S16,
- AV_SAMPLE_FMT_NONE },
- .profiles = NULL_IF_CONFIG_SMALL(profiles),
+ 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0,
+ 12000, 24000, 48000, 96000, 192000
};
diff --git a/libavcodec/dca.h b/libavcodec/dca.h
index 02c0a51ea844fec09163f22ba877edbb20ad8287..4d2a829d004e6bbe5a3976f0368b0e54a26cec2e 100644
--- a/libavcodec/dca.h
+++ b/libavcodec/dca.h
@@ -25,6 +25,8 @@
#ifndef AVCODEC_DCA_H
#define AVCODEC_DCA_H
+#include <stdint.h>
+
/** DCA syncwords, also used for bitstream type detection */
#define DCA_MARKER_RAW_BE 0x7FFE8001
#define DCA_MARKER_RAW_LE 0xFE7F0180
@@ -34,4 +36,6 @@
/** DCA-HD specific block starts with this marker. */
#define DCA_HD_MARKER 0x64582025
+extern const uint32_t avpriv_dca_sample_rates[16];
+
#endif /* AVCODEC_DCA_H */
diff --git a/libavcodec/dca_parser.c b/libavcodec/dca_parser.c
index 9a35e020fcbf3c84144774e140e8b4bf4fc22805..62bcf2bd5ae6bfa71216a77bca1a8e00ca871cbb 100644
--- a/libavcodec/dca_parser.c
+++ b/libavcodec/dca_parser.c
@@ -24,7 +24,6 @@
#include "parser.h"
#include "dca.h"
-#include "dcadata.h"
#include "dca_parser.h"
#include "get_bits.h"
#include "put_bits.h"
@@ -160,7 +159,7 @@ static int dca_parse_params(const uint8_t *buf, int buf_size, int *duration,
skip_bits(&gb, 20);
sr_code = get_bits(&gb, 4);
- *sample_rate = dca_sample_rates[sr_code];
+ *sample_rate = avpriv_dca_sample_rates[sr_code];
if (*sample_rate == 0)
return AVERROR_INVALIDDATA;
diff --git a/libavcodec/dcadata.h b/libavcodec/dcadata.h
index 98dfd895867ff2bde5334d865f910899978c977e..15df49eba1e0d49148a32d3284cc5c368232a59f 100644
--- a/libavcodec/dcadata.h
+++ b/libavcodec/dcadata.h
@@ -28,12 +28,6 @@
/* Generic tables */
-static const uint32_t dca_sample_rates[16] =
-{
- 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0,
- 12000, 24000, 48000, 96000, 192000
-};
-
static const uint32_t dca_bit_rates[32] =
{
32000, 56000, 64000, 96000, 112000, 128000,
diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c
new file mode 100644
index 0000000000000000000000000000000000000000..9d75926103d51b598ea95c2bb453aab6d506b407
--- /dev/null
+++ b/libavcodec/dcadec.c
@@ -0,0 +1,2507 @@
+/*
+ * DCA compatible decoder
+ * Copyright (C) 2004 Gildas Bazin
+ * Copyright (C) 2004 Benjamin Zores
+ * Copyright (C) 2006 Benjamin Larsson
+ * Copyright (C) 2007 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <math.h>
+#include <stddef.h>
+#include <stdio.h>
+
+#include "libavutil/common.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/intmath.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/audioconvert.h"
+#include "avcodec.h"
+#include "dsputil.h"
+#include "fft.h"
+#include "get_bits.h"
+#include "put_bits.h"
+#include "dcadata.h"
+#include "dcahuff.h"
+#include "dca.h"
+#include "dca_parser.h"
+#include "synth_filter.h"
+#include "dcadsp.h"
+#include "fmtconvert.h"
+
+#if ARCH_ARM
+# include "arm/dca.h"
+#endif
+
+//#define TRACE
+
+#define DCA_PRIM_CHANNELS_MAX (7)
+#define DCA_SUBBANDS (64)
+#define DCA_ABITS_MAX (32) /* Should be 28 */
+#define DCA_SUBSUBFRAMES_MAX (4)
+#define DCA_SUBFRAMES_MAX (16)
+#define DCA_BLOCKS_MAX (16)
+#define DCA_LFE_MAX (3)
+#define DCA_CHSETS_MAX (4)
+#define DCA_CHSET_CHANS_MAX (8)
+
+enum DCAMode {
+ DCA_MONO = 0,
+ DCA_CHANNEL,
+ DCA_STEREO,
+ DCA_STEREO_SUMDIFF,
+ DCA_STEREO_TOTAL,
+ DCA_3F,
+ DCA_2F1R,
+ DCA_3F1R,
+ DCA_2F2R,
+ DCA_3F2R,
+ DCA_4F2R
+};
+
+/* these are unconfirmed but should be mostly correct */
+enum DCAExSSSpeakerMask {
+ DCA_EXSS_FRONT_CENTER = 0x0001,
+ DCA_EXSS_FRONT_LEFT_RIGHT = 0x0002,
+ DCA_EXSS_SIDE_REAR_LEFT_RIGHT = 0x0004,
+ DCA_EXSS_LFE = 0x0008,
+ DCA_EXSS_REAR_CENTER = 0x0010,
+ DCA_EXSS_FRONT_HIGH_LEFT_RIGHT = 0x0020,
+ DCA_EXSS_REAR_LEFT_RIGHT = 0x0040,
+ DCA_EXSS_FRONT_HIGH_CENTER = 0x0080,
+ DCA_EXSS_OVERHEAD = 0x0100,
+ DCA_EXSS_CENTER_LEFT_RIGHT = 0x0200,
+ DCA_EXSS_WIDE_LEFT_RIGHT = 0x0400,
+ DCA_EXSS_SIDE_LEFT_RIGHT = 0x0800,
+ DCA_EXSS_LFE2 = 0x1000,
+ DCA_EXSS_SIDE_HIGH_LEFT_RIGHT = 0x2000,
+ DCA_EXSS_REAR_HIGH_CENTER = 0x4000,
+ DCA_EXSS_REAR_HIGH_LEFT_RIGHT = 0x8000,
+};
+
+enum DCAXxchSpeakerMask {
+ DCA_XXCH_FRONT_CENTER = 0x0000001,
+ DCA_XXCH_FRONT_LEFT = 0x0000002,
+ DCA_XXCH_FRONT_RIGHT = 0x0000004,
+ DCA_XXCH_SIDE_REAR_LEFT = 0x0000008,
+ DCA_XXCH_SIDE_REAR_RIGHT = 0x0000010,
+ DCA_XXCH_LFE1 = 0x0000020,
+ DCA_XXCH_REAR_CENTER = 0x0000040,
+ DCA_XXCH_SURROUND_REAR_LEFT = 0x0000080,
+ DCA_XXCH_SURROUND_REAR_RIGHT = 0x0000100,
+ DCA_XXCH_SIDE_SURROUND_LEFT = 0x0000200,
+ DCA_XXCH_SIDE_SURROUND_RIGHT = 0x0000400,
+ DCA_XXCH_FRONT_CENTER_LEFT = 0x0000800,
+ DCA_XXCH_FRONT_CENTER_RIGHT = 0x0001000,
+ DCA_XXCH_FRONT_HIGH_LEFT = 0x0002000,
+ DCA_XXCH_FRONT_HIGH_CENTER = 0x0004000,
+ DCA_XXCH_FRONT_HIGH_RIGHT = 0x0008000,
+ DCA_XXCH_LFE2 = 0x0010000,
+ DCA_XXCH_SIDE_FRONT_LEFT = 0x0020000,
+ DCA_XXCH_SIDE_FRONT_RIGHT = 0x0040000,
+ DCA_XXCH_OVERHEAD = 0x0080000,
+ DCA_XXCH_SIDE_HIGH_LEFT = 0x0100000,
+ DCA_XXCH_SIDE_HIGH_RIGHT = 0x0200000,
+ DCA_XXCH_REAR_HIGH_CENTER = 0x0400000,
+ DCA_XXCH_REAR_HIGH_LEFT = 0x0800000,
+ DCA_XXCH_REAR_HIGH_RIGHT = 0x1000000,
+ DCA_XXCH_REAR_LOW_CENTER = 0x2000000,
+ DCA_XXCH_REAR_LOW_LEFT = 0x4000000,
+ DCA_XXCH_REAR_LOW_RIGHT = 0x8000000,
+};
+
+static const uint32_t map_xxch_to_native[28] = {
+ AV_CH_FRONT_CENTER,
+ AV_CH_FRONT_LEFT,
+ AV_CH_FRONT_RIGHT,
+ AV_CH_SIDE_LEFT,
+ AV_CH_SIDE_RIGHT,
+ AV_CH_LOW_FREQUENCY,
+ AV_CH_BACK_CENTER,
+ AV_CH_BACK_LEFT,
+ AV_CH_BACK_RIGHT,
+ AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
+ AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
+ AV_CH_FRONT_LEFT_OF_CENTER,
+ AV_CH_FRONT_RIGHT_OF_CENTER,
+ AV_CH_TOP_FRONT_LEFT,
+ AV_CH_TOP_FRONT_CENTER,
+ AV_CH_TOP_FRONT_RIGHT,
+ AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
+ AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
+ AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
+ AV_CH_TOP_CENTER, /* overhead */
+ AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
+ AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
+ AV_CH_TOP_BACK_CENTER,
+ AV_CH_TOP_BACK_LEFT,
+ AV_CH_TOP_BACK_RIGHT,
+ AV_CH_BACK_CENTER, /* rear low center -- dup */
+ AV_CH_BACK_LEFT, /* rear low left -- dup */
+ AV_CH_BACK_RIGHT /* read low right -- dup */
+};
+
+enum DCAExtensionMask {
+ DCA_EXT_CORE = 0x001, ///< core in core substream
+ DCA_EXT_XXCH = 0x002, ///< XXCh channels extension in core substream
+ DCA_EXT_X96 = 0x004, ///< 96/24 extension in core substream
+ DCA_EXT_XCH = 0x008, ///< XCh channel extension in core substream
+ DCA_EXT_EXSS_CORE = 0x010, ///< core in ExSS (extension substream)
+ DCA_EXT_EXSS_XBR = 0x020, ///< extended bitrate extension in ExSS
+ DCA_EXT_EXSS_XXCH = 0x040, ///< XXCh channels extension in ExSS
+ DCA_EXT_EXSS_X96 = 0x080, ///< 96/24 extension in ExSS
+ DCA_EXT_EXSS_LBR = 0x100, ///< low bitrate component in ExSS
+ DCA_EXT_EXSS_XLL = 0x200, ///< lossless extension in ExSS
+};
+
+/* -1 are reserved or unknown */
+static const int dca_ext_audio_descr_mask[] = {
+ DCA_EXT_XCH,
+ -1,
+ DCA_EXT_X96,
+ DCA_EXT_XCH | DCA_EXT_X96,
+ -1,
+ -1,
+ DCA_EXT_XXCH,
+ -1,
+};
+
+/* extensions that reside in core substream */
+#define DCA_CORE_EXTS (DCA_EXT_XCH | DCA_EXT_XXCH | DCA_EXT_X96)
+
+/* Tables for mapping dts channel configurations to libavcodec multichannel api.
+ * Some compromises have been made for special configurations. Most configurations
+ * are never used so complete accuracy is not needed.
+ *
+ * L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead.
+ * S -> side, when both rear and back are configured move one of them to the side channel
+ * OV -> center back
+ * All 2 channel configurations -> AV_CH_LAYOUT_STEREO
+ */
+static const uint64_t dca_core_channel_layout[] = {
+ AV_CH_FRONT_CENTER, ///< 1, A
+ AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono)
+ AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo)
+ AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference)
+ AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total)
+ AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R
+ AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S
+ AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S
+ AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR
+
+ AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
+ AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR
+
+ AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
+ AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR
+
+ AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
+ AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV
+
+ AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
+ AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
+ AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR
+
+ AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
+ AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
+ AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR
+
+ AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
+ AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
+ AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
+
+ AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
+ AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
+ AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR
+};
+
+static const int8_t dca_lfe_index[] = {
+ 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3
+};
+
+static const int8_t dca_channel_reorder_lfe[][9] = {
+ { 0, -1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 2, 0, 1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 3, -1, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 4, -1, -1, -1, -1, -1},
+ { 0, 1, 3, 4, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 4, 5, -1, -1, -1, -1},
+ { 3, 4, 0, 1, 5, 6, -1, -1, -1},
+ { 2, 0, 1, 4, 5, 6, -1, -1, -1},
+ { 0, 6, 4, 5, 2, 3, -1, -1, -1},
+ { 4, 2, 5, 0, 1, 6, 7, -1, -1},
+ { 5, 6, 0, 1, 7, 3, 8, 4, -1},
+ { 4, 2, 5, 0, 1, 6, 8, 7, -1},
+};
+
+static const int8_t dca_channel_reorder_lfe_xch[][9] = {
+ { 0, 2, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 3, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 3, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 3, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 3, -1, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 4, -1, -1, -1, -1, -1},
+ { 0, 1, 3, 4, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 4, 5, -1, -1, -1, -1},
+ { 0, 1, 4, 5, 3, -1, -1, -1, -1},
+ { 2, 0, 1, 5, 6, 4, -1, -1, -1},
+ { 3, 4, 0, 1, 6, 7, 5, -1, -1},
+ { 2, 0, 1, 4, 5, 6, 7, -1, -1},
+ { 0, 6, 4, 5, 2, 3, 7, -1, -1},
+ { 4, 2, 5, 0, 1, 7, 8, 6, -1},
+ { 5, 6, 0, 1, 8, 3, 9, 4, 7},
+ { 4, 2, 5, 0, 1, 6, 9, 8, 7},
+};
+
+static const int8_t dca_channel_reorder_nolfe[][9] = {
+ { 0, -1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 2, 0, 1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 2, -1, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 3, -1, -1, -1, -1, -1},
+ { 0, 1, 2, 3, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 3, 4, -1, -1, -1, -1},
+ { 2, 3, 0, 1, 4, 5, -1, -1, -1},
+ { 2, 0, 1, 3, 4, 5, -1, -1, -1},
+ { 0, 5, 3, 4, 1, 2, -1, -1, -1},
+ { 3, 2, 4, 0, 1, 5, 6, -1, -1},
+ { 4, 5, 0, 1, 6, 2, 7, 3, -1},
+ { 3, 2, 4, 0, 1, 5, 7, 6, -1},
+};
+
+static const int8_t dca_channel_reorder_nolfe_xch[][9] = {
+ { 0, 1, -1, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 2, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 2, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 2, -1, -1, -1, -1, -1, -1},
+ { 0, 1, 2, -1, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 3, -1, -1, -1, -1, -1},
+ { 0, 1, 2, 3, -1, -1, -1, -1, -1},
+ { 2, 0, 1, 3, 4, -1, -1, -1, -1},
+ { 0, 1, 3, 4, 2, -1, -1, -1, -1},
+ { 2, 0, 1, 4, 5, 3, -1, -1, -1},
+ { 2, 3, 0, 1, 5, 6, 4, -1, -1},
+ { 2, 0, 1, 3, 4, 5, 6, -1, -1},
+ { 0, 5, 3, 4, 1, 2, 6, -1, -1},
+ { 3, 2, 4, 0, 1, 6, 7, 5, -1},
+ { 4, 5, 0, 1, 7, 2, 8, 3, 6},
+ { 3, 2, 4, 0, 1, 5, 8, 7, 6},
+};
+
+#define DCA_DOLBY 101 /* FIXME */
+
+#define DCA_CHANNEL_BITS 6
+#define DCA_CHANNEL_MASK 0x3F
+
+#define DCA_LFE 0x80
+
+#define HEADER_SIZE 14
+
+#define DCA_MAX_FRAME_SIZE 16384
+#define DCA_MAX_EXSS_HEADER_SIZE 4096
+
+#define DCA_BUFFER_PADDING_SIZE 1024
+
+/** Bit allocation */
+typedef struct {
+ int offset; ///< code values offset
+ int maxbits[8]; ///< max bits in VLC
+ int wrap; ///< wrap for get_vlc2()
+ VLC vlc[8]; ///< actual codes
+} BitAlloc;
+
+static BitAlloc dca_bitalloc_index; ///< indexes for samples VLC select
+static BitAlloc dca_tmode; ///< transition mode VLCs
+static BitAlloc dca_scalefactor; ///< scalefactor VLCs
+static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs
+
+static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba,
+ int idx)
+{
+ return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) +
+ ba->offset;
+}
+
+typedef struct {
+ AVCodecContext *avctx;
+ AVFrame frame;
+ /* Frame header */
+ int frame_type; ///< type of the current frame
+ int samples_deficit; ///< deficit sample count
+ int crc_present; ///< crc is present in the bitstream
+ int sample_blocks; ///< number of PCM sample blocks
+ int frame_size; ///< primary frame byte size
+ int amode; ///< audio channels arrangement
+ int sample_rate; ///< audio sampling rate
+ int bit_rate; ///< transmission bit rate
+ int bit_rate_index; ///< transmission bit rate index
+
+ int downmix; ///< embedded downmix enabled
+ int dynrange; ///< embedded dynamic range flag
+ int timestamp; ///< embedded time stamp flag
+ int aux_data; ///< auxiliary data flag
+ int hdcd; ///< source material is mastered in HDCD
+ int ext_descr; ///< extension audio descriptor flag
+ int ext_coding; ///< extended coding flag
+ int aspf; ///< audio sync word insertion flag
+ int lfe; ///< low frequency effects flag
+ int predictor_history; ///< predictor history flag
+ int header_crc; ///< header crc check bytes
+ int multirate_inter; ///< multirate interpolator switch
+ int version; ///< encoder software revision
+ int copy_history; ///< copy history
+ int source_pcm_res; ///< source pcm resolution
+ int front_sum; ///< front sum/difference flag
+ int surround_sum; ///< surround sum/difference flag
+ int dialog_norm; ///< dialog normalisation parameter
+
+ /* Primary audio coding header */
+ int subframes; ///< number of subframes
+ int total_channels; ///< number of channels including extensions
+ int prim_channels; ///< number of primary audio channels
+ int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count
+ int vq_start_subband[DCA_PRIM_CHANNELS_MAX]; ///< high frequency vq start subband
+ int joint_intensity[DCA_PRIM_CHANNELS_MAX]; ///< joint intensity coding index
+ int transient_huffman[DCA_PRIM_CHANNELS_MAX]; ///< transient mode code book
+ int scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]; ///< scale factor code book
+ int bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]; ///< bit allocation quantizer select
+ int quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< quantization index codebook select
+ float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment
+
+ /* Primary audio coding side information */
+ int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes
+ int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count
+ int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not)
+ int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs
+ int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index
+ int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients)
+ int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient)
+ int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook
+ int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors
+ int downmix_coef[DCA_PRIM_CHANNELS_MAX][2]; ///< stereo downmix coefficients
+ int dynrange_coef; ///< dynamic range coefficient
+
+ int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands
+
+ float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data
+ int lfe_scale_factor;
+
+ /* Subband samples history (for ADPCM) */
+ DECLARE_ALIGNED(16, float, subband_samples_hist)[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4];
+ DECLARE_ALIGNED(32, float, subband_fir_hist)[DCA_PRIM_CHANNELS_MAX][512];
+ DECLARE_ALIGNED(32, float, subband_fir_noidea)[DCA_PRIM_CHANNELS_MAX][32];
+ int hist_index[DCA_PRIM_CHANNELS_MAX];
+ DECLARE_ALIGNED(32, float, raXin)[32];
+
+ int output; ///< type of output
+ float scale_bias; ///< output scale
+
+ DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8];
+ DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256];
+ const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1];
+
+ uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE];
+ int dca_buffer_size; ///< how much data is in the dca_buffer
+
+ const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe
+ GetBitContext gb;
+ /* Current position in DCA frame */
+ int current_subframe;
+ int current_subsubframe;
+
+ int core_ext_mask; ///< present extensions in the core substream
+
+ /* XCh extension information */
+ int xch_present; ///< XCh extension present and valid
+ int xch_base_channel; ///< index of first (only) channel containing XCH data
+
+ /* XXCH extension information */
+ int xxch_chset;
+ int xxch_nbits_spk_mask;
+ uint32_t xxch_core_spkmask;
+ uint32_t xxch_spk_masks[4]; /* speaker masks, last element is core mask */
+ int xxch_chset_nch[4];
+ float xxch_dmix_sf[DCA_CHSETS_MAX];
+
+ uint32_t xxch_downmix; /* downmix enabled per channel set */
+ uint32_t xxch_dmix_embedded; /* lower layer has mix pre-embedded, per chset */
+ float xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]; /* worst case sizing */
+
+ int8_t xxch_order_tab[32];
+ int8_t lfe_index;
+
+ /* ExSS header parser */
+ int static_fields; ///< static fields present
+ int mix_metadata; ///< mixing metadata present
+ int num_mix_configs; ///< number of mix out configurations
+ int mix_config_num_ch[4]; ///< number of channels in each mix out configuration
+
+ int profile;
+
+ int debug_flag; ///< used for suppressing repeated error messages output
+ AVFloatDSPContext fdsp;
+ FFTContext imdct;
+ SynthFilterContext synth;
+ DCADSPContext dcadsp;
+ FmtConvertContext fmt_conv;
+} DCAContext;
+
+static const uint16_t dca_vlc_offs[] = {
+ 0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454, 5364,
+ 5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492, 5508,
+ 5572, 5604, 5668, 5796, 5860, 5892, 6412, 6668, 6796, 7308, 7564,
+ 7820, 8076, 8620, 9132, 9388, 9910, 10166, 10680, 11196, 11726, 12240,
+ 12752, 13298, 13810, 14326, 14840, 15500, 16022, 16540, 17158, 17678, 18264,
+ 18796, 19352, 19926, 20468, 21472, 22398, 23014, 23622,
+};
+
+static av_cold void dca_init_vlcs(void)
+{
+ static int vlcs_initialized = 0;
+ int i, j, c = 14;
+ static VLC_TYPE dca_table[23622][2];
+
+ if (vlcs_initialized)
+ return;
+
+ dca_bitalloc_index.offset = 1;
+ dca_bitalloc_index.wrap = 2;
+ for (i = 0; i < 5; i++) {
+ dca_bitalloc_index.vlc[i].table = &dca_table[dca_vlc_offs[i]];
+ dca_bitalloc_index.vlc[i].table_allocated = dca_vlc_offs[i + 1] - dca_vlc_offs[i];
+ init_vlc(&dca_bitalloc_index.vlc[i], bitalloc_12_vlc_bits[i], 12,
+ bitalloc_12_bits[i], 1, 1,
+ bitalloc_12_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ }
+ dca_scalefactor.offset = -64;
+ dca_scalefactor.wrap = 2;
+ for (i = 0; i < 5; i++) {
+ dca_scalefactor.vlc[i].table = &dca_table[dca_vlc_offs[i + 5]];
+ dca_scalefactor.vlc[i].table_allocated = dca_vlc_offs[i + 6] - dca_vlc_offs[i + 5];
+ init_vlc(&dca_scalefactor.vlc[i], SCALES_VLC_BITS, 129,
+ scales_bits[i], 1, 1,
+ scales_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ }
+ dca_tmode.offset = 0;
+ dca_tmode.wrap = 1;
+ for (i = 0; i < 4; i++) {
+ dca_tmode.vlc[i].table = &dca_table[dca_vlc_offs[i + 10]];
+ dca_tmode.vlc[i].table_allocated = dca_vlc_offs[i + 11] - dca_vlc_offs[i + 10];
+ init_vlc(&dca_tmode.vlc[i], tmode_vlc_bits[i], 4,
+ tmode_bits[i], 1, 1,
+ tmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ }
+
+ for (i = 0; i < 10; i++)
+ for (j = 0; j < 7; j++) {
+ if (!bitalloc_codes[i][j])
+ break;
+ dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i];
+ dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4);
+ dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]];
+ dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c];
+
+ init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j],
+ bitalloc_sizes[i],
+ bitalloc_bits[i][j], 1, 1,
+ bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC);
+ c++;
+ }
+ vlcs_initialized = 1;
+}
+
+static inline void get_array(GetBitContext *gb, int *dst, int len, int bits)
+{
+ while (len--)
+ *dst++ = get_bits(gb, bits);
+}
+
+static inline int dca_xxch2index(DCAContext *s, int xxch_ch)
+{
+ int i, base, mask;
+
+ /* locate channel set containing the channel */
+ for (i = -1, base = 0, mask = (s->xxch_core_spkmask & ~DCA_XXCH_LFE1);
+ i <= s->xxch_chset && !(mask & xxch_ch); mask = s->xxch_spk_masks[++i])
+ base += av_popcount(mask);
+
+ return base + av_popcount(mask & (xxch_ch - 1));
+}
+
+static int dca_parse_audio_coding_header(DCAContext *s, int base_channel,
+ int xxch)
+{
+ int i, j;
+ static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 };
+ static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 };
+ static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 };
+ int hdr_pos = 0, hdr_size = 0;
+ float sign, mag, scale_factor;
+ int this_chans, acc_mask;
+ int embedded_downmix;
+ int nchans, mask[8];
+ int coeff, ichan;
+
+ /* xxch has arbitrary sized audio coding headers */
+ if (xxch) {
+ hdr_pos = get_bits_count(&s->gb);
+ hdr_size = get_bits(&s->gb, 7) + 1;
+ }
+
+ nchans = get_bits(&s->gb, 3) + 1;
+ s->total_channels = nchans + base_channel;
+ s->prim_channels = s->total_channels;
+
+ /* obtain speaker layout mask & downmix coefficients for XXCH */
+ if (xxch) {
+ acc_mask = s->xxch_core_spkmask;
+
+ this_chans = get_bits(&s->gb, s->xxch_nbits_spk_mask - 6) << 6;
+ s->xxch_spk_masks[s->xxch_chset] = this_chans;
+ s->xxch_chset_nch[s->xxch_chset] = nchans;
+
+ for (i = 0; i <= s->xxch_chset; i++)
+ acc_mask |= s->xxch_spk_masks[i];
+
+ /* check for downmixing information */
+ if (get_bits1(&s->gb)) {
+ embedded_downmix = get_bits1(&s->gb);
+ scale_factor =
+ 1.0f / dca_downmix_scale_factors[(get_bits(&s->gb, 6) - 1) << 2];
+
+ s->xxch_dmix_sf[s->xxch_chset] = scale_factor;
+
+ for (i = base_channel; i < s->prim_channels; i++) {
+ s->xxch_downmix |= (1 << i);
+ mask[i] = get_bits(&s->gb, s->xxch_nbits_spk_mask);
+ }
+
+ for (j = base_channel; j < s->prim_channels; j++) {
+ memset(s->xxch_dmix_coeff[j], 0, sizeof(s->xxch_dmix_coeff[0]));
+ s->xxch_dmix_embedded |= (embedded_downmix << j);
+ for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
+ if (mask[j] & (1 << i)) {
+ if ((1 << i) == DCA_XXCH_LFE1) {
+ av_log(s->avctx, AV_LOG_WARNING,
+ "DCA-XXCH: dmix to LFE1 not supported.\n");
+ continue;
+ }
+
+ coeff = get_bits(&s->gb, 7);
+ sign = (coeff & 64) ? 1.0 : -1.0;
+ mag = dca_downmix_scale_factors[((coeff & 63) - 1) << 2];
+ ichan = dca_xxch2index(s, 1 << i);
+ s->xxch_dmix_coeff[j][ichan] = sign * mag;
+ }
+ }
+ }
+ }
+ }
+
+ if (s->prim_channels > DCA_PRIM_CHANNELS_MAX)
+ s->prim_channels = DCA_PRIM_CHANNELS_MAX;
+
+
+ for (i = base_channel; i < s->prim_channels; i++) {
+ s->subband_activity[i] = get_bits(&s->gb, 5) + 2;
+ if (s->subband_activity[i] > DCA_SUBBANDS)
+ s->subband_activity[i] = DCA_SUBBANDS;
+ }
+ for (i = base_channel; i < s->prim_channels; i++) {
+ s->vq_start_subband[i] = get_bits(&s->gb, 5) + 1;
+ if (s->vq_start_subband[i] > DCA_SUBBANDS)
+ s->vq_start_subband[i] = DCA_SUBBANDS;
+ }
+ get_array(&s->gb, s->joint_intensity + base_channel, s->prim_channels - base_channel, 3);
+ get_array(&s->gb, s->transient_huffman + base_channel, s->prim_channels - base_channel, 2);
+ get_array(&s->gb, s->scalefactor_huffman + base_channel, s->prim_channels - base_channel, 3);
+ get_array(&s->gb, s->bitalloc_huffman + base_channel, s->prim_channels - base_channel, 3);
+
+ /* Get codebooks quantization indexes */
+ if (!base_channel)
+ memset(s->quant_index_huffman, 0, sizeof(s->quant_index_huffman));
+ for (j = 1; j < 11; j++)
+ for (i = base_channel; i < s->prim_channels; i++)
+ s->quant_index_huffman[i][j] = get_bits(&s->gb, bitlen[j]);
+
+ /* Get scale factor adjustment */
+ for (j = 0; j < 11; j++)
+ for (i = base_channel; i < s->prim_channels; i++)
+ s->scalefactor_adj[i][j] = 1;
+
+ for (j = 1; j < 11; j++)
+ for (i = base_channel; i < s->prim_channels; i++)
+ if (s->quant_index_huffman[i][j] < thr[j])
+ s->scalefactor_adj[i][j] = adj_table[get_bits(&s->gb, 2)];
+
+ if (!xxch) {
+ if (s->crc_present) {
+ /* Audio header CRC check */
+ get_bits(&s->gb, 16);
+ }
+ } else {
+ /* Skip to the end of the header, also ignore CRC if present */
+ i = get_bits_count(&s->gb);
+ if (hdr_pos + 8 * hdr_size > i)
+ skip_bits_long(&s->gb, hdr_pos + 8 * hdr_size - i);
+ }
+
+ s->current_subframe = 0;
+ s->current_subsubframe = 0;
+
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes);
+ av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels);
+ for (i = base_channel; i < s->prim_channels; i++) {
+ av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n",
+ s->subband_activity[i]);
+ av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n",
+ s->vq_start_subband[i]);
+ av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n",
+ s->joint_intensity[i]);
+ av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n",
+ s->transient_huffman[i]);
+ av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n",
+ s->scalefactor_huffman[i]);
+ av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n",
+ s->bitalloc_huffman[i]);
+ av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:");
+ for (j = 0; j < 11; j++)
+ av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:");
+ for (j = 0; j < 11; j++)
+ av_log(s->avctx, AV_LOG_DEBUG, " %1.3f", s->scalefactor_adj[i][j]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+#endif
+
+ return 0;
+}
+
+static int dca_parse_frame_header(DCAContext *s)
+{
+ init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
+
+ /* Sync code */
+ skip_bits_long(&s->gb, 32);
+
+ /* Frame header */
+ s->frame_type = get_bits(&s->gb, 1);
+ s->samples_deficit = get_bits(&s->gb, 5) + 1;
+ s->crc_present = get_bits(&s->gb, 1);
+ s->sample_blocks = get_bits(&s->gb, 7) + 1;
+ s->frame_size = get_bits(&s->gb, 14) + 1;
+ if (s->frame_size < 95)
+ return AVERROR_INVALIDDATA;
+ s->amode = get_bits(&s->gb, 6);
+ s->sample_rate = avpriv_dca_sample_rates[get_bits(&s->gb, 4)];
+ if (!s->sample_rate)
+ return AVERROR_INVALIDDATA;
+ s->bit_rate_index = get_bits(&s->gb, 5);
+ s->bit_rate = dca_bit_rates[s->bit_rate_index];
+ if (!s->bit_rate)
+ return AVERROR_INVALIDDATA;
+
+ s->downmix = get_bits(&s->gb, 1); /* note: this is FixedBit == 0 */
+ s->dynrange = get_bits(&s->gb, 1);
+ s->timestamp = get_bits(&s->gb, 1);
+ s->aux_data = get_bits(&s->gb, 1);
+ s->hdcd = get_bits(&s->gb, 1);
+ s->ext_descr = get_bits(&s->gb, 3);
+ s->ext_coding = get_bits(&s->gb, 1);
+ s->aspf = get_bits(&s->gb, 1);
+ s->lfe = get_bits(&s->gb, 2);
+ s->predictor_history = get_bits(&s->gb, 1);
+
+ /* TODO: check CRC */
+ if (s->crc_present)
+ s->header_crc = get_bits(&s->gb, 16);
+
+ s->multirate_inter = get_bits(&s->gb, 1);
+ s->version = get_bits(&s->gb, 4);
+ s->copy_history = get_bits(&s->gb, 2);
+ s->source_pcm_res = get_bits(&s->gb, 3);
+ s->front_sum = get_bits(&s->gb, 1);
+ s->surround_sum = get_bits(&s->gb, 1);
+ s->dialog_norm = get_bits(&s->gb, 4);
+
+ /* FIXME: channels mixing levels */
+ s->output = s->amode;
+ if (s->lfe)
+ s->output |= DCA_LFE;
+
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type);
+ av_log(s->avctx, AV_LOG_DEBUG, "samples deficit: %i\n", s->samples_deficit);
+ av_log(s->avctx, AV_LOG_DEBUG, "crc present: %i\n", s->crc_present);
+ av_log(s->avctx, AV_LOG_DEBUG, "sample blocks: %i (%i samples)\n",
+ s->sample_blocks, s->sample_blocks * 32);
+ av_log(s->avctx, AV_LOG_DEBUG, "frame size: %i bytes\n", s->frame_size);
+ av_log(s->avctx, AV_LOG_DEBUG, "amode: %i (%i channels)\n",
+ s->amode, dca_channels[s->amode]);
+ av_log(s->avctx, AV_LOG_DEBUG, "sample rate: %i Hz\n",
+ s->sample_rate);
+ av_log(s->avctx, AV_LOG_DEBUG, "bit rate: %i bits/s\n",
+ s->bit_rate);
+ av_log(s->avctx, AV_LOG_DEBUG, "downmix: %i\n", s->downmix);
+ av_log(s->avctx, AV_LOG_DEBUG, "dynrange: %i\n", s->dynrange);
+ av_log(s->avctx, AV_LOG_DEBUG, "timestamp: %i\n", s->timestamp);
+ av_log(s->avctx, AV_LOG_DEBUG, "aux_data: %i\n", s->aux_data);
+ av_log(s->avctx, AV_LOG_DEBUG, "hdcd: %i\n", s->hdcd);
+ av_log(s->avctx, AV_LOG_DEBUG, "ext descr: %i\n", s->ext_descr);
+ av_log(s->avctx, AV_LOG_DEBUG, "ext coding: %i\n", s->ext_coding);
+ av_log(s->avctx, AV_LOG_DEBUG, "aspf: %i\n", s->aspf);
+ av_log(s->avctx, AV_LOG_DEBUG, "lfe: %i\n", s->lfe);
+ av_log(s->avctx, AV_LOG_DEBUG, "predictor history: %i\n",
+ s->predictor_history);
+ av_log(s->avctx, AV_LOG_DEBUG, "header crc: %i\n", s->header_crc);
+ av_log(s->avctx, AV_LOG_DEBUG, "multirate inter: %i\n",
+ s->multirate_inter);
+ av_log(s->avctx, AV_LOG_DEBUG, "version number: %i\n", s->version);
+ av_log(s->avctx, AV_LOG_DEBUG, "copy history: %i\n", s->copy_history);
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "source pcm resolution: %i (%i bits/sample)\n",
+ s->source_pcm_res, dca_bits_per_sample[s->source_pcm_res]);
+ av_log(s->avctx, AV_LOG_DEBUG, "front sum: %i\n", s->front_sum);
+ av_log(s->avctx, AV_LOG_DEBUG, "surround sum: %i\n", s->surround_sum);
+ av_log(s->avctx, AV_LOG_DEBUG, "dialog norm: %i\n", s->dialog_norm);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+#endif
+
+ /* Primary audio coding header */
+ s->subframes = get_bits(&s->gb, 4) + 1;
+
+ return dca_parse_audio_coding_header(s, 0, 0);
+}
+
+
+static inline int get_scale(GetBitContext *gb, int level, int value, int log2range)
+{
+ if (level < 5) {
+ /* huffman encoded */
+ value += get_bitalloc(gb, &dca_scalefactor, level);
+ value = av_clip(value, 0, (1 << log2range) - 1);
+ } else if (level < 8) {
+ if (level + 1 > log2range) {
+ skip_bits(gb, level + 1 - log2range);
+ value = get_bits(gb, log2range);
+ } else {
+ value = get_bits(gb, level + 1);
+ }
+ }
+ return value;
+}
+
+static int dca_subframe_header(DCAContext *s, int base_channel, int block_index)
+{
+ /* Primary audio coding side information */
+ int j, k;
+
+ if (get_bits_left(&s->gb) < 0)
+ return AVERROR_INVALIDDATA;
+
+ if (!base_channel) {
+ s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1;
+ s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3);
+ }
+
+ for (j = base_channel; j < s->prim_channels; j++) {
+ for (k = 0; k < s->subband_activity[j]; k++)
+ s->prediction_mode[j][k] = get_bits(&s->gb, 1);
+ }
+
+ /* Get prediction codebook */
+ for (j = base_channel; j < s->prim_channels; j++) {
+ for (k = 0; k < s->subband_activity[j]; k++) {
+ if (s->prediction_mode[j][k] > 0) {
+ /* (Prediction coefficient VQ address) */
+ s->prediction_vq[j][k] = get_bits(&s->gb, 12);
+ }
+ }
+ }
+
+ /* Bit allocation index */
+ for (j = base_channel; j < s->prim_channels; j++) {
+ for (k = 0; k < s->vq_start_subband[j]; k++) {
+ if (s->bitalloc_huffman[j] == 6)
+ s->bitalloc[j][k] = get_bits(&s->gb, 5);
+ else if (s->bitalloc_huffman[j] == 5)
+ s->bitalloc[j][k] = get_bits(&s->gb, 4);
+ else if (s->bitalloc_huffman[j] == 7) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid bit allocation index\n");
+ return AVERROR_INVALIDDATA;
+ } else {
+ s->bitalloc[j][k] =
+ get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]);
+ }
+
+ if (s->bitalloc[j][k] > 26) {
+ // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n",
+ // j, k, s->bitalloc[j][k]);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ /* Transition mode */
+ for (j = base_channel; j < s->prim_channels; j++) {
+ for (k = 0; k < s->subband_activity[j]; k++) {
+ s->transition_mode[j][k] = 0;
+ if (s->subsubframes[s->current_subframe] > 1 &&
+ k < s->vq_start_subband[j] && s->bitalloc[j][k] > 0) {
+ s->transition_mode[j][k] =
+ get_bitalloc(&s->gb, &dca_tmode, s->transient_huffman[j]);
+ }
+ }
+ }
+
+ if (get_bits_left(&s->gb) < 0)
+ return AVERROR_INVALIDDATA;
+
+ for (j = base_channel; j < s->prim_channels; j++) {
+ const uint32_t *scale_table;
+ int scale_sum, log_size;
+
+ memset(s->scale_factor[j], 0,
+ s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2);
+
+ if (s->scalefactor_huffman[j] == 6) {
+ scale_table = scale_factor_quant7;
+ log_size = 7;
+ } else {
+ scale_table = scale_factor_quant6;
+ log_size = 6;
+ }
+
+ /* When huffman coded, only the difference is encoded */
+ scale_sum = 0;
+
+ for (k = 0; k < s->subband_activity[j]; k++) {
+ if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) {
+ scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
+ s->scale_factor[j][k][0] = scale_table[scale_sum];
+ }
+
+ if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) {
+ /* Get second scale factor */
+ scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
+ s->scale_factor[j][k][1] = scale_table[scale_sum];
+ }
+ }
+ }
+
+ /* Joint subband scale factor codebook select */
+ for (j = base_channel; j < s->prim_channels; j++) {
+ /* Transmitted only if joint subband coding enabled */
+ if (s->joint_intensity[j] > 0)
+ s->joint_huff[j] = get_bits(&s->gb, 3);
+ }
+
+ if (get_bits_left(&s->gb) < 0)
+ return AVERROR_INVALIDDATA;
+
+ /* Scale factors for joint subband coding */
+ for (j = base_channel; j < s->prim_channels; j++) {
+ int source_channel;
+
+ /* Transmitted only if joint subband coding enabled */
+ if (s->joint_intensity[j] > 0) {
+ int scale = 0;
+ source_channel = s->joint_intensity[j] - 1;
+
+ /* When huffman coded, only the difference is encoded
+ * (is this valid as well for joint scales ???) */
+
+ for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) {
+ scale = get_scale(&s->gb, s->joint_huff[j], 64 /* bias */, 7);
+ s->joint_scale_factor[j][k] = scale; /*joint_scale_table[scale]; */
+ }
+
+ if (!(s->debug_flag & 0x02)) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "Joint stereo coding not supported\n");
+ s->debug_flag |= 0x02;
+ }
+ }
+ }
+
+ /* Stereo downmix coefficients */
+ if (!base_channel && s->prim_channels > 2) {
+ if (s->downmix) {
+ for (j = base_channel; j < s->prim_channels; j++) {
+ s->downmix_coef[j][0] = get_bits(&s->gb, 7);
+ s->downmix_coef[j][1] = get_bits(&s->gb, 7);
+ }
+ } else {
+ int am = s->amode & DCA_CHANNEL_MASK;
+ if (am >= FF_ARRAY_ELEMS(dca_default_coeffs)) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Invalid channel mode %d\n", am);
+ return AVERROR_INVALIDDATA;
+ }
+ for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) {
+ s->downmix_coef[j][0] = dca_default_coeffs[am][j][0];
+ s->downmix_coef[j][1] = dca_default_coeffs[am][j][1];
+ }
+ }
+ }
+
+ /* Dynamic range coefficient */
+ if (!base_channel && s->dynrange)
+ s->dynrange_coef = get_bits(&s->gb, 8);
+
+ /* Side information CRC check word */
+ if (s->crc_present) {
+ get_bits(&s->gb, 16);
+ }
+
+ /*
+ * Primary audio data arrays
+ */
+
+ /* VQ encoded high frequency subbands */
+ for (j = base_channel; j < s->prim_channels; j++)
+ for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
+ /* 1 vector -> 32 samples */
+ s->high_freq_vq[j][k] = get_bits(&s->gb, 10);
+
+ /* Low frequency effect data */
+ if (!base_channel && s->lfe) {
+ int quant7;
+ /* LFE samples */
+ int lfe_samples = 2 * s->lfe * (4 + block_index);
+ int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
+ float lfe_scale;
+
+ for (j = lfe_samples; j < lfe_end_sample; j++) {
+ /* Signed 8 bits int */
+ s->lfe_data[j] = get_sbits(&s->gb, 8);
+ }
+
+ /* Scale factor index */
+ quant7 = get_bits(&s->gb, 8);
+ if (quant7 > 127) {
+ av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n");
+ return AVERROR_INVALIDDATA;
+ }
+ s->lfe_scale_factor = scale_factor_quant7[quant7];
+
+ /* Quantization step size * scale factor */
+ lfe_scale = 0.035 * s->lfe_scale_factor;
+
+ for (j = lfe_samples; j < lfe_end_sample; j++)
+ s->lfe_data[j] *= lfe_scale;
+ }
+
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n",
+ s->subsubframes[s->current_subframe]);
+ av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n",
+ s->partial_samples[s->current_subframe]);
+
+ for (j = base_channel; j < s->prim_channels; j++) {
+ av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:");
+ for (k = 0; k < s->subband_activity[j]; k++)
+ av_log(s->avctx, AV_LOG_DEBUG, " %i", s->prediction_mode[j][k]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+ for (j = base_channel; j < s->prim_channels; j++) {
+ for (k = 0; k < s->subband_activity[j]; k++)
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "prediction coefs: %f, %f, %f, %f\n",
+ (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192,
+ (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192,
+ (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192,
+ (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192);
+ }
+ for (j = base_channel; j < s->prim_channels; j++) {
+ av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: ");
+ for (k = 0; k < s->vq_start_subband[j]; k++)
+ av_log(s->avctx, AV_LOG_DEBUG, "%2.2i ", s->bitalloc[j][k]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+ for (j = base_channel; j < s->prim_channels; j++) {
+ av_log(s->avctx, AV_LOG_DEBUG, "Transition mode:");
+ for (k = 0; k < s->subband_activity[j]; k++)
+ av_log(s->avctx, AV_LOG_DEBUG, " %i", s->transition_mode[j][k]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+ for (j = base_channel; j < s->prim_channels; j++) {
+ av_log(s->avctx, AV_LOG_DEBUG, "Scale factor:");
+ for (k = 0; k < s->subband_activity[j]; k++) {
+ if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0)
+ av_log(s->avctx, AV_LOG_DEBUG, " %i", s->scale_factor[j][k][0]);
+ if (k < s->vq_start_subband[j] && s->transition_mode[j][k])
+ av_log(s->avctx, AV_LOG_DEBUG, " %i(t)", s->scale_factor[j][k][1]);
+ }
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+ for (j = base_channel; j < s->prim_channels; j++) {
+ if (s->joint_intensity[j] > 0) {
+ int source_channel = s->joint_intensity[j] - 1;
+ av_log(s->avctx, AV_LOG_DEBUG, "Joint scale factor index:\n");
+ for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++)
+ av_log(s->avctx, AV_LOG_DEBUG, " %i", s->joint_scale_factor[j][k]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+ }
+ if (!base_channel && s->prim_channels > 2 && s->downmix) {
+ av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n");
+ for (j = 0; j < s->prim_channels; j++) {
+ av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j,
+ dca_downmix_coeffs[s->downmix_coef[j][0]]);
+ av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j,
+ dca_downmix_coeffs[s->downmix_coef[j][1]]);
+ }
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+ for (j = base_channel; j < s->prim_channels; j++)
+ for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
+ av_log(s->avctx, AV_LOG_DEBUG, "VQ index: %i\n", s->high_freq_vq[j][k]);
+ if (!base_channel && s->lfe) {
+ int lfe_samples = 2 * s->lfe * (4 + block_index);
+ int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
+
+ av_log(s->avctx, AV_LOG_DEBUG, "LFE samples:\n");
+ for (j = lfe_samples; j < lfe_end_sample; j++)
+ av_log(s->avctx, AV_LOG_DEBUG, " %f", s->lfe_data[j]);
+ av_log(s->avctx, AV_LOG_DEBUG, "\n");
+ }
+#endif
+
+ return 0;
+}
+
+static void qmf_32_subbands(DCAContext *s, int chans,
+ float samples_in[32][8], float *samples_out,
+ float scale)
+{
+ const float *prCoeff;
+ int i;
+
+ int sb_act = s->subband_activity[chans];
+ int subindex;
+
+ scale *= sqrt(1 / 8.0);
+
+ /* Select filter */
+ if (!s->multirate_inter) /* Non-perfect reconstruction */
+ prCoeff = fir_32bands_nonperfect;
+ else /* Perfect reconstruction */
+ prCoeff = fir_32bands_perfect;
+
+ for (i = sb_act; i < 32; i++)
+ s->raXin[i] = 0.0;
+
+ /* Reconstructed channel sample index */
+ for (subindex = 0; subindex < 8; subindex++) {
+ /* Load in one sample from each subband and clear inactive subbands */
+ for (i = 0; i < sb_act; i++) {
+ unsigned sign = (i - 1) & 2;
+ uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30;
+ AV_WN32A(&s->raXin[i], v);
+ }
+
+ s->synth.synth_filter_float(&s->imdct,
+ s->subband_fir_hist[chans],
+ &s->hist_index[chans],
+ s->subband_fir_noidea[chans], prCoeff,
+ samples_out, s->raXin, scale);
+ samples_out += 32;
+ }
+}
+
+static void lfe_interpolation_fir(DCAContext *s, int decimation_select,
+ int num_deci_sample, float *samples_in,
+ float *samples_out, float scale)
+{
+ /* samples_in: An array holding decimated samples.
+ * Samples in current subframe starts from samples_in[0],
+ * while samples_in[-1], samples_in[-2], ..., stores samples
+ * from last subframe as history.
+ *
+ * samples_out: An array holding interpolated samples
+ */
+
+ int decifactor;
+ const float *prCoeff;
+ int deciindex;
+
+ /* Select decimation filter */
+ if (decimation_select == 1) {
+ decifactor = 64;
+ prCoeff = lfe_fir_128;
+ } else {
+ decifactor = 32;
+ prCoeff = lfe_fir_64;
+ }
+ /* Interpolation */
+ for (deciindex = 0; deciindex < num_deci_sample; deciindex++) {
+ s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale);
+ samples_in++;
+ samples_out += 2 * decifactor;
+ }
+}
+
+/* downmixing routines */
+#define MIX_REAR1(samples, si1, rs, coef) \
+ samples[i] += samples[si1] * coef[rs][0]; \
+ samples[i+256] += samples[si1] * coef[rs][1];
+
+#define MIX_REAR2(samples, si1, si2, rs, coef) \
+ samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \
+ samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1];
+
+#define MIX_FRONT3(samples, coef) \
+ t = samples[i + c]; \
+ u = samples[i + l]; \
+ v = samples[i + r]; \
+ samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \
+ samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1];
+
+#define DOWNMIX_TO_STEREO(op1, op2) \
+ for (i = 0; i < 256; i++) { \
+ op1 \
+ op2 \
+ }
+
+static void dca_downmix(float *samples, int srcfmt,
+ int downmix_coef[DCA_PRIM_CHANNELS_MAX][2],
+ const int8_t *channel_mapping)
+{
+ int c, l, r, sl, sr, s;
+ int i;
+ float t, u, v;
+ float coef[DCA_PRIM_CHANNELS_MAX][2];
+
+ for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) {
+ coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]];
+ coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]];
+ }
+
+ switch (srcfmt) {
+ case DCA_MONO:
+ case DCA_CHANNEL:
+ case DCA_STEREO_TOTAL:
+ case DCA_STEREO_SUMDIFF:
+ case DCA_4F2R:
+ av_log(NULL, 0, "Not implemented!\n");
+ break;
+ case DCA_STEREO:
+ break;
+ case DCA_3F:
+ c = channel_mapping[0] * 256;
+ l = channel_mapping[1] * 256;
+ r = channel_mapping[2] * 256;
+ DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), );
+ break;
+ case DCA_2F1R:
+ s = channel_mapping[2] * 256;
+ DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), );
+ break;
+ case DCA_3F1R:
+ c = channel_mapping[0] * 256;
+ l = channel_mapping[1] * 256;
+ r = channel_mapping[2] * 256;
+ s = channel_mapping[3] * 256;
+ DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
+ MIX_REAR1(samples, i + s, 3, coef));
+ break;
+ case DCA_2F2R:
+ sl = channel_mapping[2] * 256;
+ sr = channel_mapping[3] * 256;
+ DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), );
+ break;
+ case DCA_3F2R:
+ c = channel_mapping[0] * 256;
+ l = channel_mapping[1] * 256;
+ r = channel_mapping[2] * 256;
+ sl = channel_mapping[3] * 256;
+ sr = channel_mapping[4] * 256;
+ DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
+ MIX_REAR2(samples, i + sl, i + sr, 3, coef));
+ break;
+ }
+}
+
+
+#ifndef decode_blockcodes
+/* Very compact version of the block code decoder that does not use table
+ * look-up but is slightly slower */
+static int decode_blockcode(int code, int levels, int *values)
+{
+ int i;
+ int offset = (levels - 1) >> 1;
+
+ for (i = 0; i < 4; i++) {
+ int div = FASTDIV(code, levels);
+ values[i] = code - offset - div * levels;
+ code = div;
+ }
+
+ return code;
+}
+
+static int decode_blockcodes(int code1, int code2, int levels, int *values)
+{
+ return decode_blockcode(code1, levels, values) |
+ decode_blockcode(code2, levels, values + 4);
+}
+#endif
+
+static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 };
+static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 };
+
+#ifndef int8x8_fmul_int32
+static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
+{
+ float fscale = scale / 16.0;
+ int i;
+ for (i = 0; i < 8; i++)
+ dst[i] = src[i] * fscale;
+}
+#endif
+
+static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
+{
+ int k, l;
+ int subsubframe = s->current_subsubframe;
+
+ const float *quant_step_table;
+
+ /* FIXME */
+ float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
+ LOCAL_ALIGNED_16(int, block, [8]);
+
+ /*
+ * Audio data
+ */
+
+ /* Select quantization step size table */
+ if (s->bit_rate_index == 0x1f)
+ quant_step_table = lossless_quant_d;
+ else
+ quant_step_table = lossy_quant_d;
+
+ for (k = base_channel; k < s->prim_channels; k++) {
+ if (get_bits_left(&s->gb) < 0)
+ return AVERROR_INVALIDDATA;
+
+ for (l = 0; l < s->vq_start_subband[k]; l++) {
+ int m;
+
+ /* Select the mid-tread linear quantizer */
+ int abits = s->bitalloc[k][l];
+
+ float quant_step_size = quant_step_table[abits];
+
+ /*
+ * Determine quantization index code book and its type
+ */
+
+ /* Select quantization index code book */
+ int sel = s->quant_index_huffman[k][abits];
+
+ /*
+ * Extract bits from the bit stream
+ */
+ if (!abits) {
+ memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0]));
+ } else {
+ /* Deal with transients */
+ int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l];
+ float rscale = quant_step_size * s->scale_factor[k][l][sfi] *
+ s->scalefactor_adj[k][sel];
+
+ if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) {
+ if (abits <= 7) {
+ /* Block code */
+ int block_code1, block_code2, size, levels, err;
+
+ size = abits_sizes[abits - 1];
+ levels = abits_levels[abits - 1];
+
+ block_code1 = get_bits(&s->gb, size);
+ block_code2 = get_bits(&s->gb, size);
+ err = decode_blockcodes(block_code1, block_code2,
+ levels, block);
+ if (err) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "ERROR: block code look-up failed\n");
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ /* no coding */
+ for (m = 0; m < 8; m++)
+ block[m] = get_sbits(&s->gb, abits - 3);
+ }
+ } else {
+ /* Huffman coded */
+ for (m = 0; m < 8; m++)
+ block[m] = get_bitalloc(&s->gb,
+ &dca_smpl_bitalloc[abits], sel);
+ }
+
+ s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l],
+ block, rscale, 8);
+ }
+
+ /*
+ * Inverse ADPCM if in prediction mode
+ */
+ if (s->prediction_mode[k][l]) {
+ int n;
+ for (m = 0; m < 8; m++) {
+ for (n = 1; n <= 4; n++)
+ if (m >= n)
+ subband_samples[k][l][m] +=
+ (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
+ subband_samples[k][l][m - n] / 8192);
+ else if (s->predictor_history)
+ subband_samples[k][l][m] +=
+ (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
+ s->subband_samples_hist[k][l][m - n + 4] / 8192);
+ }
+ }
+ }
+
+ /*
+ * Decode VQ encoded high frequencies
+ */
+ for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) {
+ /* 1 vector -> 32 samples but we only need the 8 samples
+ * for this subsubframe. */
+ int hfvq = s->high_freq_vq[k][l];
+
+ if (!s->debug_flag & 0x01) {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "Stream with high frequencies VQ coding\n");
+ s->debug_flag |= 0x01;
+ }
+
+ int8x8_fmul_int32(subband_samples[k][l],
+ &high_freq_vq[hfvq][subsubframe * 8],
+ s->scale_factor[k][l][0]);
+ }
+ }
+
+ /* Check for DSYNC after subsubframe */
+ if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) {
+ if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n");
+#endif
+ } else {
+ av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n");
+ }
+ }
+
+ /* Backup predictor history for adpcm */
+ for (k = base_channel; k < s->prim_channels; k++)
+ for (l = 0; l < s->vq_start_subband[k]; l++)
+ memcpy(s->subband_samples_hist[k][l],
+ &subband_samples[k][l][4],
+ 4 * sizeof(subband_samples[0][0][0]));
+
+ return 0;
+}
+
+static int dca_filter_channels(DCAContext *s, int block_index)
+{
+ float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
+ int k;
+
+ /* 32 subbands QMF */
+ for (k = 0; k < s->prim_channels; k++) {
+/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0,
+ 0, 8388608.0, 8388608.0 };*/
+ qmf_32_subbands(s, k, subband_samples[k],
+ &s->samples[256 * s->channel_order_tab[k]],
+ M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */);
+ }
+
+ /* Down mixing */
+ if (s->avctx->request_channels == 2 && s->prim_channels > 2) {
+ dca_downmix(s->samples, s->amode, s->downmix_coef, s->channel_order_tab);
+ }
+
+ /* Generate LFE samples for this subsubframe FIXME!!! */
+ if (s->output & DCA_LFE) {
+ lfe_interpolation_fir(s, s->lfe, 2 * s->lfe,
+ s->lfe_data + 2 * s->lfe * (block_index + 4),
+ &s->samples[256 * s->lfe_index],
+ (1.0 / 256.0) * s->scale_bias);
+ /* Outputs 20bits pcm samples */
+ }
+
+ return 0;
+}
+
+
+static int dca_subframe_footer(DCAContext *s, int base_channel)
+{
+ int aux_data_count = 0, i;
+
+ /*
+ * Unpack optional information
+ */
+
+ /* presumably optional information only appears in the core? */
+ if (!base_channel) {
+ if (s->timestamp)
+ skip_bits_long(&s->gb, 32);
+
+ if (s->aux_data)
+ aux_data_count = get_bits(&s->gb, 6);
+
+ for (i = 0; i < aux_data_count; i++)
+ get_bits(&s->gb, 8);
+
+ if (s->crc_present && (s->downmix || s->dynrange))
+ get_bits(&s->gb, 16);
+ }
+
+ return 0;
+}
+
+/**
+ * Decode a dca frame block
+ *
+ * @param s pointer to the DCAContext
+ */
+
+static int dca_decode_block(DCAContext *s, int base_channel, int block_index)
+{
+ int ret;
+
+ /* Sanity check */
+ if (s->current_subframe >= s->subframes) {
+ av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i",
+ s->current_subframe, s->subframes);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (!s->current_subsubframe) {
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n");
+#endif
+ /* Read subframe header */
+ if ((ret = dca_subframe_header(s, base_channel, block_index)))
+ return ret;
+ }
+
+ /* Read subsubframe */
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n");
+#endif
+ if ((ret = dca_subsubframe(s, base_channel, block_index)))
+ return ret;
+
+ /* Update state */
+ s->current_subsubframe++;
+ if (s->current_subsubframe >= s->subsubframes[s->current_subframe]) {
+ s->current_subsubframe = 0;
+ s->current_subframe++;
+ }
+ if (s->current_subframe >= s->subframes) {
+#ifdef TRACE
+ av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n");
+#endif
+ /* Read subframe footer */
+ if ((ret = dca_subframe_footer(s, base_channel)))
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Return the number of channels in an ExSS speaker mask (HD)
+ */
+static int dca_exss_mask2count(int mask)
+{
+ /* count bits that mean speaker pairs twice */
+ return av_popcount(mask) +
+ av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT |
+ DCA_EXSS_FRONT_LEFT_RIGHT |
+ DCA_EXSS_FRONT_HIGH_LEFT_RIGHT |
+ DCA_EXSS_WIDE_LEFT_RIGHT |
+ DCA_EXSS_SIDE_LEFT_RIGHT |
+ DCA_EXSS_SIDE_HIGH_LEFT_RIGHT |
+ DCA_EXSS_SIDE_REAR_LEFT_RIGHT |
+ DCA_EXSS_REAR_LEFT_RIGHT |
+ DCA_EXSS_REAR_HIGH_LEFT_RIGHT));
+}
+
+/**
+ * Skip mixing coefficients of a single mix out configuration (HD)
+ */
+static void dca_exss_skip_mix_coeffs(GetBitContext *gb, int channels, int out_ch)
+{
+ int i;
+
+ for (i = 0; i < channels; i++) {
+ int mix_map_mask = get_bits(gb, out_ch);
+ int num_coeffs = av_popcount(mix_map_mask);
+ skip_bits_long(gb, num_coeffs * 6);
+ }
+}
+
+/**
+ * Parse extension substream asset header (HD)
+ */
+static int dca_exss_parse_asset_header(DCAContext *s)
+{
+ int header_pos = get_bits_count(&s->gb);
+ int header_size;
+ int channels = 0;
+ int embedded_stereo = 0;
+ int embedded_6ch = 0;
+ int drc_code_present;
+ int av_uninit(extensions_mask);
+ int i, j;
+
+ if (get_bits_left(&s->gb) < 16)
+ return -1;
+
+ /* We will parse just enough to get to the extensions bitmask with which
+ * we can set the profile value. */
+
+ header_size = get_bits(&s->gb, 9) + 1;
+ skip_bits(&s->gb, 3); // asset index
+
+ if (s->static_fields) {
+ if (get_bits1(&s->gb))
+ skip_bits(&s->gb, 4); // asset type descriptor
+ if (get_bits1(&s->gb))
+ skip_bits_long(&s->gb, 24); // language descriptor
+
+ if (get_bits1(&s->gb)) {
+ /* How can one fit 1024 bytes of text here if the maximum value
+ * for the asset header size field above was 512 bytes? */
+ int text_length = get_bits(&s->gb, 10) + 1;
+ if (get_bits_left(&s->gb) < text_length * 8)
+ return -1;
+ skip_bits_long(&s->gb, text_length * 8); // info text
+ }
+
+ skip_bits(&s->gb, 5); // bit resolution - 1
+ skip_bits(&s->gb, 4); // max sample rate code
+ channels = get_bits(&s->gb, 8) + 1;
+
+ if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers
+ int spkr_remap_sets;
+ int spkr_mask_size = 16;
+ int num_spkrs[7];
+
+ if (channels > 2)
+ embedded_stereo = get_bits1(&s->gb);
+ if (channels > 6)
+ embedded_6ch = get_bits1(&s->gb);
+
+ if (get_bits1(&s->gb)) {
+ spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
+ skip_bits(&s->gb, spkr_mask_size); // spkr activity mask
+ }
+
+ spkr_remap_sets = get_bits(&s->gb, 3);
+
+ for (i = 0; i < spkr_remap_sets; i++) {
+ /* std layout mask for each remap set */
+ num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size));
+ }
+
+ for (i = 0; i < spkr_remap_sets; i++) {
+ int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1;
+ if (get_bits_left(&s->gb) < 0)
+ return -1;
+
+ for (j = 0; j < num_spkrs[i]; j++) {
+ int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps);
+ int num_dec_ch = av_popcount(remap_dec_ch_mask);
+ skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes
+ }
+ }
+
+ } else {
+ skip_bits(&s->gb, 3); // representation type
+ }
+ }
+
+ drc_code_present = get_bits1(&s->gb);
+ if (drc_code_present)
+ get_bits(&s->gb, 8); // drc code
+
+ if (get_bits1(&s->gb))
+ skip_bits(&s->gb, 5); // dialog normalization code
+
+ if (drc_code_present && embedded_stereo)
+ get_bits(&s->gb, 8); // drc stereo code
+
+ if (s->mix_metadata && get_bits1(&s->gb)) {
+ skip_bits(&s->gb, 1); // external mix
+ skip_bits(&s->gb, 6); // post mix gain code
+
+ if (get_bits(&s->gb, 2) != 3) // mixer drc code
+ skip_bits(&s->gb, 3); // drc limit
+ else
+ skip_bits(&s->gb, 8); // custom drc code
+
+ if (get_bits1(&s->gb)) // channel specific scaling
+ for (i = 0; i < s->num_mix_configs; i++)
+ skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes
+ else
+ skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes
+
+ for (i = 0; i < s->num_mix_configs; i++) {
+ if (get_bits_left(&s->gb) < 0)
+ return -1;
+ dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]);
+ if (embedded_6ch)
+ dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]);
+ if (embedded_stereo)
+ dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]);
+ }
+ }
+
+ switch (get_bits(&s->gb, 2)) {
+ case 0: extensions_mask = get_bits(&s->gb, 12); break;
+ case 1: extensions_mask = DCA_EXT_EXSS_XLL; break;
+ case 2: extensions_mask = DCA_EXT_EXSS_LBR; break;
+ case 3: extensions_mask = 0; /* aux coding */ break;
+ }
+
+ /* not parsed further, we were only interested in the extensions mask */
+
+ if (get_bits_left(&s->gb) < 0)
+ return -1;
+
+ if (get_bits_count(&s->gb) - header_pos > header_size * 8) {
+ av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n");
+ return -1;
+ }
+ skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb));
+
+ if (extensions_mask & DCA_EXT_EXSS_XLL)
+ s->profile = FF_PROFILE_DTS_HD_MA;
+ else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 |
+ DCA_EXT_EXSS_XXCH))
+ s->profile = FF_PROFILE_DTS_HD_HRA;
+
+ if (!(extensions_mask & DCA_EXT_CORE))
+ av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n");
+ if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask)
+ av_log(s->avctx, AV_LOG_WARNING,
+ "DTS extensions detection mismatch (%d, %d)\n",
+ extensions_mask & DCA_CORE_EXTS, s->core_ext_mask);
+
+ return 0;
+}
+
+static int dca_xbr_parse_frame(DCAContext *s)
+{
+ int scale_table_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS][2];
+ int active_bands[DCA_CHSETS_MAX][DCA_CHSET_CHANS_MAX];
+ int abits_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS];
+ int anctemp[DCA_CHSET_CHANS_MAX];
+ int chset_fsize[DCA_CHSETS_MAX];
+ int n_xbr_ch[DCA_CHSETS_MAX];
+ int hdr_size, num_chsets, xbr_tmode, hdr_pos;
+ int i, j, k, l, chset, chan_base;
+
+ av_log(s->avctx, AV_LOG_DEBUG, "DTS-XBR: decoding XBR extension\n");
+
+ /* get bit position of sync header */
+ hdr_pos = get_bits_count(&s->gb) - 32;
+
+ hdr_size = get_bits(&s->gb, 6) + 1;
+ num_chsets = get_bits(&s->gb, 2) + 1;
+
+ for(i = 0; i < num_chsets; i++)
+ chset_fsize[i] = get_bits(&s->gb, 14) + 1;
+
+ xbr_tmode = get_bits1(&s->gb);
+
+ for(i = 0; i < num_chsets; i++) {
+ n_xbr_ch[i] = get_bits(&s->gb, 3) + 1;
+ k = get_bits(&s->gb, 2) + 5;
+ for(j = 0; j < n_xbr_ch[i]; j++)
+ active_bands[i][j] = get_bits(&s->gb, k) + 1;
+ }
+
+ /* skip to the end of the header */
+ i = get_bits_count(&s->gb);
+ if(hdr_pos + hdr_size * 8 > i)
+ skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
+
+ /* loop over the channel data sets */
+ /* only decode as many channels as we've decoded base data for */
+ for(chset = 0, chan_base = 0;
+ chset < num_chsets && chan_base + n_xbr_ch[chset] <= s->prim_channels;
+ chan_base += n_xbr_ch[chset++]) {
+ int start_posn = get_bits_count(&s->gb);
+ int subsubframe = 0;
+ int subframe = 0;
+
+ /* loop over subframes */
+ for (k = 0; k < (s->sample_blocks / 8); k++) {
+ /* parse header if we're on first subsubframe of a block */
+ if(subsubframe == 0) {
+ /* Parse subframe header */
+ for(i = 0; i < n_xbr_ch[chset]; i++) {
+ anctemp[i] = get_bits(&s->gb, 2) + 2;
+ }
+
+ for(i = 0; i < n_xbr_ch[chset]; i++) {
+ get_array(&s->gb, abits_high[i], active_bands[chset][i], anctemp[i]);
+ }
+
+ for(i = 0; i < n_xbr_ch[chset]; i++) {
+ anctemp[i] = get_bits(&s->gb, 3);
+ if(anctemp[i] < 1) {
+ av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: SYNC ERROR\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ /* generate scale factors */
+ for(i = 0; i < n_xbr_ch[chset]; i++) {
+ const uint32_t *scale_table;
+ int nbits;
+
+ if (s->scalefactor_huffman[chan_base+i] == 6) {
+ scale_table = scale_factor_quant7;
+ } else {
+ scale_table = scale_factor_quant6;
+ }
+
+ nbits = anctemp[i];
+
+ for(j = 0; j < active_bands[chset][i]; j++) {
+ if(abits_high[i][j] > 0) {
+ scale_table_high[i][j][0] =
+ scale_table[get_bits(&s->gb, nbits)];
+
+ if(xbr_tmode && s->transition_mode[i][j]) {
+ scale_table_high[i][j][1] =
+ scale_table[get_bits(&s->gb, nbits)];
+ }
+ }
+ }
+ }
+ }
+
+ /* decode audio array for this block */
+ for(i = 0; i < n_xbr_ch[chset]; i++) {
+ for(j = 0; j < active_bands[chset][i]; j++) {
+ const int xbr_abits = abits_high[i][j];
+ const float quant_step_size = lossless_quant_d[xbr_abits];
+ const int sfi = xbr_tmode && s->transition_mode[i][j] && subsubframe >= s->transition_mode[i][j];
+ const float rscale = quant_step_size * scale_table_high[i][j][sfi];
+ float *subband_samples = s->subband_samples[k][chan_base+i][j];
+ int block[8];
+
+ if(xbr_abits <= 0)
+ continue;
+
+ if(xbr_abits > 7) {
+ get_array(&s->gb, block, 8, xbr_abits - 3);
+ } else {
+ int block_code1, block_code2, size, levels, err;
+
+ size = abits_sizes[xbr_abits - 1];
+ levels = abits_levels[xbr_abits - 1];
+
+ block_code1 = get_bits(&s->gb, size);
+ block_code2 = get_bits(&s->gb, size);
+ err = decode_blockcodes(block_code1, block_code2,
+ levels, block);
+ if (err) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "ERROR: DTS-XBR: block code look-up failed\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ /* scale & sum into subband */
+ for(l = 0; l < 8; l++)
+ subband_samples[l] += (float)block[l] * rscale;
+ }
+ }
+
+ /* check DSYNC marker */
+ if(s->aspf || subsubframe == s->subsubframes[subframe] - 1) {
+ if(get_bits(&s->gb, 16) != 0xffff) {
+ av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: Didn't get subframe DSYNC\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ /* advance sub-sub-frame index */
+ if(++subsubframe >= s->subsubframes[subframe]) {
+ subsubframe = 0;
+ subframe++;
+ }
+ }
+
+ /* skip to next channel set */
+ i = get_bits_count(&s->gb);
+ if(start_posn + chset_fsize[chset] * 8 != i) {
+ j = start_posn + chset_fsize[chset] * 8 - i;
+ if(j < 0 || j >= 8)
+ av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: end of channel set,"
+ " skipping further than expected (%d bits)\n", j);
+ skip_bits_long(&s->gb, j);
+ }
+ }
+
+ return 0;
+}
+
+/* parse initial header for XXCH and dump details */
+static int dca_xxch_decode_frame(DCAContext *s)
+{
+ int hdr_size, chhdr_crc, spkmsk_bits, num_chsets, core_spk, hdr_pos;
+ int i, chset, base_channel, chstart, fsize[8];
+
+ /* assume header word has already been parsed */
+ hdr_pos = get_bits_count(&s->gb) - 32;
+ hdr_size = get_bits(&s->gb, 6) + 1;
+ chhdr_crc = get_bits1(&s->gb);
+ spkmsk_bits = get_bits(&s->gb, 5) + 1;
+ num_chsets = get_bits(&s->gb, 2) + 1;
+
+ for (i = 0; i < num_chsets; i++)
+ fsize[i] = get_bits(&s->gb, 14) + 1;
+
+ core_spk = get_bits(&s->gb, spkmsk_bits);
+ s->xxch_core_spkmask = core_spk;
+ s->xxch_nbits_spk_mask = spkmsk_bits;
+ s->xxch_downmix = 0;
+ s->xxch_dmix_embedded = 0;
+
+ /* skip to the end of the header */
+ i = get_bits_count(&s->gb);
+ if (hdr_pos + hdr_size * 8 > i)
+ skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
+
+ for (chset = 0; chset < num_chsets; chset++) {
+ chstart = get_bits_count(&s->gb);
+ base_channel = s->prim_channels;
+ s->xxch_chset = chset;
+
+ /* XXCH and Core headers differ, see 6.4.2 "XXCH Channel Set Header" vs.
+ 5.3.2 "Primary Audio Coding Header", DTS Spec 1.3.1 */
+ dca_parse_audio_coding_header(s, base_channel, 1);
+
+ /* decode channel data */
+ for (i = 0; i < (s->sample_blocks / 8); i++) {
+ if (dca_decode_block(s, base_channel, i)) {
+ av_log(s->avctx, AV_LOG_ERROR,
+ "Error decoding DTS-XXCH extension\n");
+ continue;
+ }
+ }
+
+ /* skip to end of this section */
+ i = get_bits_count(&s->gb);
+ if (chstart + fsize[chset] * 8 > i)
+ skip_bits_long(&s->gb, chstart + fsize[chset] * 8 - i);
+ }
+ s->xxch_chset = num_chsets;
+
+ return 0;
+}
+
+/**
+ * Parse extension substream header (HD)
+ */
+static void dca_exss_parse_header(DCAContext *s)
+{
+ int asset_size[8];
+ int ss_index;
+ int blownup;
+ int num_audiop = 1;
+ int num_assets = 1;
+ int active_ss_mask[8];
+ int i, j;
+ int start_posn;
+ int hdrsize;
+ uint32_t mkr;
+
+ if (get_bits_left(&s->gb) < 52)
+ return;
+
+ start_posn = get_bits_count(&s->gb) - 32;
+
+ skip_bits(&s->gb, 8); // user data
+ ss_index = get_bits(&s->gb, 2);
+
+ blownup = get_bits1(&s->gb);
+ hdrsize = get_bits(&s->gb, 8 + 4 * blownup) + 1; // header_size
+ skip_bits(&s->gb, 16 + 4 * blownup); // hd_size
+
+ s->static_fields = get_bits1(&s->gb);
+ if (s->static_fields) {
+ skip_bits(&s->gb, 2); // reference clock code
+ skip_bits(&s->gb, 3); // frame duration code
+
+ if (get_bits1(&s->gb))
+ skip_bits_long(&s->gb, 36); // timestamp
+
+ /* a single stream can contain multiple audio assets that can be
+ * combined to form multiple audio presentations */
+
+ num_audiop = get_bits(&s->gb, 3) + 1;
+ if (num_audiop > 1) {
+ av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio presentations.");
+ /* ignore such streams for now */
+ return;
+ }
+
+ num_assets = get_bits(&s->gb, 3) + 1;
+ if (num_assets > 1) {
+ av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio assets.");
+ /* ignore such streams for now */
+ return;
+ }
+
+ for (i = 0; i < num_audiop; i++)
+ active_ss_mask[i] = get_bits(&s->gb, ss_index + 1);
+
+ for (i = 0; i < num_audiop; i++)
+ for (j = 0; j <= ss_index; j++)
+ if (active_ss_mask[i] & (1 << j))
+ skip_bits(&s->gb, 8); // active asset mask
+
+ s->mix_metadata = get_bits1(&s->gb);
+ if (s->mix_metadata) {
+ int mix_out_mask_size;
+
+ skip_bits(&s->gb, 2); // adjustment level
+ mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
+ s->num_mix_configs = get_bits(&s->gb, 2) + 1;
+
+ for (i = 0; i < s->num_mix_configs; i++) {
+ int mix_out_mask = get_bits(&s->gb, mix_out_mask_size);
+ s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask);
+ }
+ }
+ }
+
+ for (i = 0; i < num_assets; i++)
+ asset_size[i] = get_bits_long(&s->gb, 16 + 4 * blownup);
+
+ for (i = 0; i < num_assets; i++) {
+ if (dca_exss_parse_asset_header(s))
+ return;
+ }
+
+ /* not parsed further, we were only interested in the extensions mask
+ * from the asset header */
+
+ if (num_assets > 0) {
+ j = get_bits_count(&s->gb);
+ if (start_posn + hdrsize * 8 > j)
+ skip_bits_long(&s->gb, start_posn + hdrsize * 8 - j);
+
+ for (i = 0; i < num_assets; i++) {
+ start_posn = get_bits_count(&s->gb);
+ mkr = get_bits_long(&s->gb, 32);
+
+ /* parse extensions that we know about */
+ if (mkr == 0x655e315e) {
+ dca_xbr_parse_frame(s);
+ } else if (mkr == 0x47004a03) {
+ dca_xxch_decode_frame(s);
+ s->core_ext_mask |= DCA_EXT_XXCH; /* xxx use for chan reordering */
+ } else {
+ av_log(s->avctx, AV_LOG_DEBUG,
+ "DTS-ExSS: unknown marker = 0x%08x\n", mkr);
+ }
+
+ /* skip to end of block */
+ j = get_bits_count(&s->gb);
+ if (start_posn + asset_size[i] * 8 > j)
+ skip_bits_long(&s->gb, start_posn + asset_size[i] * 8 - j);
+ }
+ }
+}
+
+/**
+ * Main frame decoding function
+ * FIXME add arguments
+ */
+static int dca_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *avpkt)
+{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
+ int channel_mask;
+ int channel_layout;
+ int lfe_samples;
+ int num_core_channels = 0;
+ int i, ret;
+ float *samples_flt;
+ float *src_chan;
+ float *dst_chan;
+ int16_t *samples_s16;
+ DCAContext *s = avctx->priv_data;
+ int core_ss_end;
+ int channels;
+ float scale;
+ int achan;
+ int chset;
+ int mask;
+ int lavc;
+ int posn;
+ int j, k;
+ int ch;
+ int endch;
+
+ s->xch_present = 0;
+
+ s->dca_buffer_size = ff_dca_convert_bitstream(buf, buf_size, s->dca_buffer,
+ DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE);
+ if (s->dca_buffer_size == AVERROR_INVALIDDATA) {
+ av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
+ if ((ret = dca_parse_frame_header(s)) < 0) {
+ //seems like the frame is corrupt, try with the next one
+ return ret;
+ }
+ //set AVCodec values with parsed data
+ avctx->sample_rate = s->sample_rate;
+ avctx->bit_rate = s->bit_rate;
+
+ s->profile = FF_PROFILE_DTS;
+
+ for (i = 0; i < (s->sample_blocks / 8); i++) {
+ if ((ret = dca_decode_block(s, 0, i))) {
+ av_log(avctx, AV_LOG_ERROR, "error decoding block\n");
+ return ret;
+ }
+ }
+
+ /* record number of core channels incase less than max channels are requested */
+ num_core_channels = s->prim_channels;
+
+ if (s->ext_coding)
+ s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr];
+ else
+ s->core_ext_mask = 0;
+
+ core_ss_end = FFMIN(s->frame_size, s->dca_buffer_size) * 8;
+
+ /* only scan for extensions if ext_descr was unknown or indicated a
+ * supported XCh extension */
+ if (s->core_ext_mask < 0 || s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) {
+
+ /* if ext_descr was unknown, clear s->core_ext_mask so that the
+ * extensions scan can fill it up */
+ s->core_ext_mask = FFMAX(s->core_ext_mask, 0);
+
+ /* extensions start at 32-bit boundaries into bitstream */
+ skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
+
+ while (core_ss_end - get_bits_count(&s->gb) >= 32) {
+ uint32_t bits = get_bits_long(&s->gb, 32);
+
+ switch (bits) {
+ case 0x5a5a5a5a: {
+ int ext_amode, xch_fsize;
+
+ s->xch_base_channel = s->prim_channels;
+
+ /* validate sync word using XCHFSIZE field */
+ xch_fsize = show_bits(&s->gb, 10);
+ if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) &&
+ (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1))
+ continue;
+
+ /* skip length-to-end-of-frame field for the moment */
+ skip_bits(&s->gb, 10);
+
+ s->core_ext_mask |= DCA_EXT_XCH;
+
+ /* extension amode(number of channels in extension) should be 1 */
+ /* AFAIK XCh is not used for more channels */
+ if ((ext_amode = get_bits(&s->gb, 4)) != 1) {
+ av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not"
+ " supported!\n", ext_amode);
+ continue;
+ }
+
+ /* much like core primary audio coding header */
+ dca_parse_audio_coding_header(s, s->xch_base_channel, 0);
+
+ for (i = 0; i < (s->sample_blocks / 8); i++)
+ if ((ret = dca_decode_block(s, s->xch_base_channel, i))) {
+ av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n");
+ continue;
+ }
+
+ s->xch_present = 1;
+ break;
+ }
+ case 0x47004a03:
+ /* XXCh: extended channels */
+ /* usually found either in core or HD part in DTS-HD HRA streams,
+ * but not in DTS-ES which contains XCh extensions instead */
+ s->core_ext_mask |= DCA_EXT_XXCH;
+ dca_xxch_decode_frame(s);
+ break;
+
+ case 0x1d95f262: {
+ int fsize96 = show_bits(&s->gb, 12) + 1;
+ if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96)
+ continue;
+
+ av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n",
+ get_bits_count(&s->gb));
+ skip_bits(&s->gb, 12);
+ av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96);
+ av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4));
+
+ s->core_ext_mask |= DCA_EXT_X96;
+ break;
+ }
+ }
+
+ skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
+ }
+ } else {
+ /* no supported extensions, skip the rest of the core substream */
+ skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb));
+ }
+
+ if (s->core_ext_mask & DCA_EXT_X96)
+ s->profile = FF_PROFILE_DTS_96_24;
+ else if (s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH))
+ s->profile = FF_PROFILE_DTS_ES;
+
+ /* check for ExSS (HD part) */
+ if (s->dca_buffer_size - s->frame_size > 32 &&
+ get_bits_long(&s->gb, 32) == DCA_HD_MARKER)
+ dca_exss_parse_header(s);
+
+ avctx->profile = s->profile;
+
+ channels = s->prim_channels + !!s->lfe;
+
+ /* If we have XXCH then the channel layout is managed differently */
+ /* note that XLL will also have another way to do things */
+ if (!(s->core_ext_mask & DCA_EXT_XXCH)
+ || (s->core_ext_mask & DCA_EXT_XXCH && avctx->request_channels > 0
+ && avctx->request_channels
+ < num_core_channels + !!s->lfe + s->xxch_chset_nch[0]))
+ { /* xxx should also do MA extensions */
+ if (s->amode < 16) {
+ avctx->channel_layout = dca_core_channel_layout[s->amode];
+
+ if (s->xch_present && (!avctx->request_channels ||
+ avctx->request_channels
+ > num_core_channels + !!s->lfe)) {
+ avctx->channel_layout |= AV_CH_BACK_CENTER;
+ if (s->lfe) {
+ avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
+ s->channel_order_tab = dca_channel_reorder_lfe_xch[s->amode];
+ } else {
+ s->channel_order_tab = dca_channel_reorder_nolfe_xch[s->amode];
+ }
+ } else {
+ channels = num_core_channels + !!s->lfe;
+ s->xch_present = 0; /* disable further xch processing */
+ if (s->lfe) {
+ avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
+ s->channel_order_tab = dca_channel_reorder_lfe[s->amode];
+ } else
+ s->channel_order_tab = dca_channel_reorder_nolfe[s->amode];
+ }
+
+ if (channels > !!s->lfe &&
+ s->channel_order_tab[channels - 1 - !!s->lfe] < 0)
+ return AVERROR_INVALIDDATA;
+
+ if (avctx->request_channels == 2 && s->prim_channels > 2) {
+ channels = 2;
+ s->output = DCA_STEREO;
+ avctx->channel_layout = AV_CH_LAYOUT_STEREO;
+ }
+ else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) {
+ static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
+ s->channel_order_tab = dca_channel_order_native;
+ }
+ s->lfe_index = dca_lfe_index[s->amode];
+ } else {
+ av_log(avctx, AV_LOG_ERROR,
+ "Non standard configuration %d !\n", s->amode);
+ return AVERROR_INVALIDDATA;
+ }
+
+ s->xxch_downmix = 0;
+ } else {
+ /* we only get here if an XXCH channel set can be added to the mix */
+ channel_mask = s->xxch_core_spkmask;
+
+ if (avctx->request_channels > 0
+ && avctx->request_channels < s->prim_channels) {
+ channels = num_core_channels + !!s->lfe;
+ for (i = 0; i < s->xxch_chset && channels + s->xxch_chset_nch[i]
+ <= avctx->request_channels; i++) {
+ channels += s->xxch_chset_nch[i];
+ channel_mask |= s->xxch_spk_masks[i];
+ }
+ } else {
+ channels = s->prim_channels + !!s->lfe;
+ for (i = 0; i < s->xxch_chset; i++) {
+ channel_mask |= s->xxch_spk_masks[i];
+ }
+ }
+
+ /* Given the DTS spec'ed channel mask, generate an avcodec version */
+ channel_layout = 0;
+ for (i = 0; i < s->xxch_nbits_spk_mask; ++i) {
+ if (channel_mask & (1 << i)) {
+ channel_layout |= map_xxch_to_native[i];
+ }
+ }
+
+ /* make sure that we have managed to get equivelant dts/avcodec channel
+ * masks in some sense -- unfortunately some channels could overlap */
+ if (av_popcount(channel_mask) != av_popcount(channel_layout)) {
+ av_log(avctx, AV_LOG_DEBUG,
+ "DTS-XXCH: Inconsistant avcodec/dts channel layouts\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ avctx->channel_layout = channel_layout;
+
+ if (!(avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE)) {
+ /* Estimate DTS --> avcodec ordering table */
+ for (chset = -1, j = 0; chset < s->xxch_chset; ++chset) {
+ mask = chset >= 0 ? s->xxch_spk_masks[chset]
+ : s->xxch_core_spkmask;
+ for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
+ if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) {
+ lavc = map_xxch_to_native[i];
+ posn = av_popcount(channel_layout & (lavc - 1));
+ s->xxch_order_tab[j++] = posn;
+ }
+ }
+ }
+
+ s->lfe_index = av_popcount(channel_layout & (AV_CH_LOW_FREQUENCY-1));
+ } else { /* native ordering */
+ for (i = 0; i < channels; i++)
+ s->xxch_order_tab[i] = i;
+
+ s->lfe_index = channels - 1;
+ }
+
+ s->channel_order_tab = s->xxch_order_tab;
+ }
+
+ if (avctx->channels != channels) {
+ if (avctx->channels)
+ av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels);
+ avctx->channels = channels;
+ }
+
+ /* get output buffer */
+ s->frame.nb_samples = 256 * (s->sample_blocks / 8);
+ if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+ samples_flt = (float *) s->frame.data[0];
+ samples_s16 = (int16_t *) s->frame.data[0];
+
+ /* filter to get final output */
+ for (i = 0; i < (s->sample_blocks / 8); i++) {
+ dca_filter_channels(s, i);
+
+ /* If this was marked as a DTS-ES stream we need to subtract back- */
+ /* channel from SL & SR to remove matrixed back-channel signal */
+ if ((s->source_pcm_res & 1) && s->xch_present) {
+ float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256;
+ float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256;
+ float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256;
+ s->fdsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256);
+ s->fdsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256);
+ }
+
+ /* If stream contains XXCH, we might need to undo an embedded downmix */
+ if (s->xxch_dmix_embedded) {
+ /* Loop over channel sets in turn */
+ ch = num_core_channels;
+ for (chset = 0; chset < s->xxch_chset; chset++) {
+ endch = ch + s->xxch_chset_nch[chset];
+ mask = s->xxch_dmix_embedded;
+
+ /* undo downmix */
+ for (j = ch; j < endch; j++) {
+ if (mask & (1 << j)) { /* this channel has been mixed-out */
+ src_chan = s->samples + s->channel_order_tab[j] * 256;
+ for (k = 0; k < endch; k++) {
+ achan = s->channel_order_tab[k];
+ scale = s->xxch_dmix_coeff[j][k];
+ if (scale != 0.0) {
+ dst_chan = s->samples + achan * 256;
+ s->fdsp.vector_fmac_scalar(dst_chan, src_chan,
+ -scale, 256);
+ }
+ }
+ }
+ }
+
+ /* if a downmix has been embedded then undo the pre-scaling */
+ if ((mask & (1 << ch)) && s->xxch_dmix_sf[chset] != 1.0f) {
+ scale = s->xxch_dmix_sf[chset];
+
+ for (j = 0; j < ch; j++) {
+ src_chan = s->samples + s->channel_order_tab[j] * 256;
+ for (k = 0; k < 256; k++)
+ src_chan[k] *= scale;
+ }
+
+ /* LFE channel is always part of core, scale if it exists */
+ if (s->lfe) {
+ src_chan = s->samples + s->lfe_index * 256;
+ for (k = 0; k < 256; k++)
+ src_chan[k] *= scale;
+ }
+ }
+
+ ch = endch;
+ }
+
+ }
+
+ if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) {
+ s->fmt_conv.float_interleave(samples_flt, s->samples_chanptr, 256,
+ channels);
+ samples_flt += 256 * channels;
+ } else {
+ s->fmt_conv.float_to_int16_interleave(samples_s16,
+ s->samples_chanptr, 256,
+ channels);
+ samples_s16 += 256 * channels;
+ }
+ }
+
+ /* update lfe history */
+ lfe_samples = 2 * s->lfe * (s->sample_blocks / 8);
+ for (i = 0; i < 2 * s->lfe * 4; i++)
+ s->lfe_data[i] = s->lfe_data[i + lfe_samples];
+
+ *got_frame_ptr = 1;
+ *(AVFrame *) data = s->frame;
+
+ return buf_size;
+}
+
+
+
+/**
+ * DCA initialization
+ *
+ * @param avctx pointer to the AVCodecContext
+ */
+
+static av_cold int dca_decode_init(AVCodecContext *avctx)
+{
+ DCAContext *s = avctx->priv_data;
+ int i;
+
+ s->avctx = avctx;
+ dca_init_vlcs();
+
+ avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
+ ff_mdct_init(&s->imdct, 6, 1, 1.0);
+ ff_synth_filter_init(&s->synth);
+ ff_dcadsp_init(&s->dcadsp);
+ ff_fmt_convert_init(&s->fmt_conv, avctx);
+
+ for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++)
+ s->samples_chanptr[i] = s->samples + i * 256;
+
+ if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) {
+ avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
+ s->scale_bias = 1.0 / 32768.0;
+ } else {
+ avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+ s->scale_bias = 1.0;
+ }
+
+ /* allow downmixing to stereo */
+ if (avctx->channels > 0 && avctx->request_channels < avctx->channels &&
+ avctx->request_channels == 2) {
+ avctx->channels = avctx->request_channels;
+ }
+
+ avcodec_get_frame_defaults(&s->frame);
+ avctx->coded_frame = &s->frame;
+
+ return 0;
+}
+
+static av_cold int dca_decode_end(AVCodecContext *avctx)
+{
+ DCAContext *s = avctx->priv_data;
+ ff_mdct_end(&s->imdct);
+ return 0;
+}
+
+static const AVProfile profiles[] = {
+ { FF_PROFILE_DTS, "DTS" },
+ { FF_PROFILE_DTS_ES, "DTS-ES" },
+ { FF_PROFILE_DTS_96_24, "DTS 96/24" },
+ { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" },
+ { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" },
+ { FF_PROFILE_UNKNOWN },
+};
+
+AVCodec ff_dca_decoder = {
+ .name = "dca",
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = CODEC_ID_DTS,
+ .priv_data_size = sizeof(DCAContext),
+ .init = dca_decode_init,
+ .decode = dca_decode_frame,
+ .close = dca_decode_end,
+ .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"),
+ .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1,
+ .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
+ AV_SAMPLE_FMT_S16,
+ AV_SAMPLE_FMT_NONE },
+ .profiles = NULL_IF_CONFIG_SMALL(profiles),
+};
diff --git a/libavcodec/dcaenc.c b/libavcodec/dcaenc.c
index 6879321eb3b5d2446e02064f5293f9118d91204f..fd00b4f0b1997bd3063ed2e1bd9bc6016b6a4b93 100644
--- a/libavcodec/dcaenc.c
+++ b/libavcodec/dcaenc.c
@@ -30,6 +30,7 @@
#include "put_bits.h"
#include "dcaenc.h"
#include "dcadata.h"
+#include "dca.h"
#undef NDEBUG
@@ -569,13 +570,13 @@ static int encode_init(AVCodecContext *avctx)
}
for (i = 0; i < 16; i++) {
- if (dca_sample_rates[i] && (dca_sample_rates[i] == avctx->sample_rate))
+ if (avpriv_dca_sample_rates[i] && (avpriv_dca_sample_rates[i] == avctx->sample_rate))
break;
}
if (i == 16) {
av_log(avctx, AV_LOG_ERROR, "Sample rate %iHz not supported, only ", avctx->sample_rate);
for (i = 0; i < 16; i++)
- av_log(avctx, AV_LOG_ERROR, "%d, ", dca_sample_rates[i]);
+ av_log(avctx, AV_LOG_ERROR, "%d, ", avpriv_dca_sample_rates[i]);
av_log(avctx, AV_LOG_ERROR, "supported.\n");
return -1;
}
diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c
index d4c32aa6b81b9349c72c5236ca499a88279767a4..b32d34f1ad176e03efe15e68dc60ec78b4e4c331 100644
--- a/libavcodec/dct-test.c
+++ b/libavcodec/dct-test.c
@@ -85,7 +85,7 @@ static const struct algo fdct_tab[] = {
{ "IJG-AAN-INT", ff_fdct_ifast, SCALE_PERM },
{ "IJG-LLM-INT", ff_jpeg_fdct_islow_8, NO_PERM },
-#if HAVE_MMX
+#if HAVE_MMX && HAVE_INLINE_ASM
{ "MMX", ff_fdct_mmx, NO_PERM, AV_CPU_FLAG_MMX },
{ "MMX2", ff_fdct_mmx2, NO_PERM, AV_CPU_FLAG_MMX2 },
{ "SSE2", ff_fdct_sse2, NO_PERM, AV_CPU_FLAG_SSE2 },
diff --git a/libavcodec/x86/dsputilenc_mmx.c b/libavcodec/x86/dsputilenc_mmx.c
index de365ee40086632f899d2333b0c9acc4942c30c9..cdc384ca9d945720b867c49648023836ea6cd2af 100644
--- a/libavcodec/x86/dsputilenc_mmx.c
+++ b/libavcodec/x86/dsputilenc_mmx.c
@@ -30,6 +30,8 @@
#include "dsputil_mmx.h"
+#if HAVE_INLINE_ASM
+
static void get_pixels_mmx(DCTELEM *block, const uint8_t *pixels, int line_size)
{
__asm__ volatile(
@@ -323,8 +325,6 @@ static int sse16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int
return tmp;
}
-int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
-
static int hf_noise8_mmx(uint8_t * pix1, int line_size, int h) {
int tmp;
__asm__ volatile (
@@ -926,17 +926,6 @@ static void sub_hfyu_median_prediction_mmx2(uint8_t *dst, const uint8_t *src1, c
"paddusw "#t", "#a" \n\t"\
"movd "#a", "#dst" \n\t"\
-#define hadamard_func(cpu) \
-int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \
- int stride, int h); \
-int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \
- int stride, int h);
-
-hadamard_func(mmx)
-hadamard_func(mmx2)
-hadamard_func(sse2)
-hadamard_func(ssse3)
-
#define DCT_SAD4(m,mm,o)\
"mov"#m" "#o"+ 0(%1), "#mm"2 \n\t"\
"mov"#m" "#o"+16(%1), "#mm"3 \n\t"\
@@ -1095,10 +1084,26 @@ static int ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2, int si
#undef PHADDD
#endif //HAVE_SSSE3
+#endif /* HAVE_INLINE_ASM */
+
+int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
+
+#define hadamard_func(cpu) \
+int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \
+ int stride, int h); \
+int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \
+ int stride, int h);
+
+hadamard_func(mmx)
+hadamard_func(mmx2)
+hadamard_func(sse2)
+hadamard_func(ssse3)
void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
{
int mm_flags = av_get_cpu_flags();
+
+#if HAVE_INLINE_ASM
int bit_depth = avctx->bits_per_raw_sample;
if (mm_flags & AV_CPU_FLAG_MMX) {
@@ -1122,11 +1127,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
c->diff_bytes= diff_bytes_mmx;
c->sum_abs_dctelem= sum_abs_dctelem_mmx;
-#if HAVE_YASM
- c->hadamard8_diff[0]= ff_hadamard8_diff16_mmx;
- c->hadamard8_diff[1]= ff_hadamard8_diff_mmx;
-#endif
-
c->pix_norm1 = pix_norm1_mmx;
c->sse[0] = sse16_mmx;
c->sse[1] = sse8_mmx;
@@ -1147,10 +1147,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
if (mm_flags & AV_CPU_FLAG_MMX2) {
-#if HAVE_YASM
- c->hadamard8_diff[0]= ff_hadamard8_diff16_mmx2;
- c->hadamard8_diff[1]= ff_hadamard8_diff_mmx2;
-#endif
c->sum_abs_dctelem= sum_abs_dctelem_mmx2;
c->vsad[4]= vsad_intra16_mmx2;
@@ -1165,13 +1161,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
if (bit_depth <= 8)
c->get_pixels = get_pixels_sse2;
c->sum_abs_dctelem= sum_abs_dctelem_sse2;
-#if HAVE_YASM
- c->sse[0] = ff_sse16_sse2;
-#if HAVE_ALIGNED_STACK
- c->hadamard8_diff[0]= ff_hadamard8_diff16_sse2;
- c->hadamard8_diff[1]= ff_hadamard8_diff_sse2;
-#endif
-#endif
}
#if HAVE_SSSE3
@@ -1181,10 +1170,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
}
c->add_8x8basis= add_8x8basis_ssse3;
c->sum_abs_dctelem= sum_abs_dctelem_ssse3;
-#if HAVE_YASM && HAVE_ALIGNED_STACK
- c->hadamard8_diff[0]= ff_hadamard8_diff16_ssse3;
- c->hadamard8_diff[1]= ff_hadamard8_diff_ssse3;
-#endif
}
#endif
@@ -1195,6 +1180,35 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
c->add_8x8basis= add_8x8basis_3dnow;
}
}
+#endif /* HAVE_INLINE_ASM */
+
+#if HAVE_YASM
+ if (mm_flags & AV_CPU_FLAG_MMX) {
+ c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx;
+ c->hadamard8_diff[1] = ff_hadamard8_diff_mmx;
+
+ if (mm_flags & AV_CPU_FLAG_MMX2) {
+ c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx2;
+ c->hadamard8_diff[1] = ff_hadamard8_diff_mmx2;
+ }
+
+ if (mm_flags & AV_CPU_FLAG_SSE2){
+ c->sse[0] = ff_sse16_sse2;
+
+#if HAVE_ALIGNED_STACK
+ c->hadamard8_diff[0] = ff_hadamard8_diff16_sse2;
+ c->hadamard8_diff[1] = ff_hadamard8_diff_sse2;
+#endif
+ }
+
+#if HAVE_SSSE3 && HAVE_ALIGNED_STACK
+ if (mm_flags & AV_CPU_FLAG_SSSE3) {
+ c->hadamard8_diff[0] = ff_hadamard8_diff16_ssse3;
+ c->hadamard8_diff[1] = ff_hadamard8_diff_ssse3;
+ }
+#endif
+ }
+#endif /* HAVE_YASM */
ff_dsputil_init_pix_mmx(c, avctx);
}
diff --git a/libavcodec/x86/fdct_mmx.c b/libavcodec/x86/fdct_mmx.c
index 366224210f8f368b7105791b229f97f9b8c7006f..f8fef4d8b2224d33507d87a570f968175f9d0f51 100644
--- a/libavcodec/x86/fdct_mmx.c
+++ b/libavcodec/x86/fdct_mmx.c
@@ -34,6 +34,8 @@
#include "libavutil/x86_cpu.h"
#include "libavcodec/dsputil.h"
+#if HAVE_INLINE_ASM
+
//////////////////////////////////////////////////////////////////////
//
// constants for the forward DCT
@@ -579,3 +581,5 @@ void ff_fdct_sse2(int16_t *block)
fdct_col_sse2(block, block1, 0);
fdct_row_sse2(block1, block);
}
+
+#endif /* HAVE_INLINE_ASM */
diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c
index e0d62173cc93f48be99e8ce5eb32f6743992441b..3b6588ae8e22481dbd66b507400d33367371d08a 100644
--- a/libavcodec/x86/fft.c
+++ b/libavcodec/x86/fft.c
@@ -25,6 +25,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s)
{
#if HAVE_YASM
int has_vectors = av_get_cpu_flags();
+#if ARCH_X86_32
if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {
/* 3DNow! for K6-2/3 */
s->imdct_calc = ff_imdct_calc_3dnow;
@@ -37,6 +38,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s)
s->imdct_half = ff_imdct_half_3dnow2;
s->fft_calc = ff_fft_calc_3dnow2;
}
+#endif
if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) {
/* SSE for P3/P4/K8 */
s->imdct_calc = ff_imdct_calc_sse;
diff --git a/libavcodec/x86/h264dsp_mmx.c b/libavcodec/x86/h264dsp_mmx.c
index 54d83f0a450228496786cfeb04a44dbff5c66632..c18a4f56ce3a813150945544a07d60807f96c626 100644
--- a/libavcodec/x86/h264dsp_mmx.c
+++ b/libavcodec/x86/h264dsp_mmx.c
@@ -23,8 +23,6 @@
#include "libavcodec/h264dsp.h"
#include "dsputil_mmx.h"
-DECLARE_ALIGNED(8, static const uint64_t, ff_pb_3_1 ) = 0x0103010301030103ULL;
-
/***********************************/
/* IDCT */
#define IDCT_ADD_FUNC(NUM, DEPTH, OPT) \
diff --git a/libavcodec/x86/motion_est_mmx.c b/libavcodec/x86/motion_est_mmx.c
index 33bb020a5e48817ed027139346ced740edf85643..a903c96950b331e19189f115d9814e80e0588c08 100644
--- a/libavcodec/x86/motion_est_mmx.c
+++ b/libavcodec/x86/motion_est_mmx.c
@@ -26,6 +26,8 @@
#include "libavcodec/dsputil.h"
#include "dsputil_mmx.h"
+#if HAVE_INLINE_ASM
+
DECLARE_ASM_CONST(8, uint64_t, round_tab)[3]={
0x0000000000000000ULL,
0x0001000100010001ULL,
@@ -422,8 +424,11 @@ static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride,
PIX_SAD(mmx)
PIX_SAD(mmx2)
+#endif /* HAVE_INLINE_ASM */
+
void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
{
+#if HAVE_INLINE_ASM
int mm_flags = av_get_cpu_flags();
if (mm_flags & AV_CPU_FLAG_MMX) {
@@ -458,4 +463,5 @@ void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
if ((mm_flags & AV_CPU_FLAG_SSE2) && !(mm_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != CODEC_ID_SNOW) {
c->sad[0]= sad16_sse2;
}
+#endif /* HAVE_INLINE_ASM */
}
diff --git a/libavcodec/x86/mpegvideo_mmx.c b/libavcodec/x86/mpegvideo_mmx.c
index 673950593b84c076eec1864e15bb061c6892cc6f..8e72852b0ae29dbce22bc724862cd7f34f72c93a 100644
--- a/libavcodec/x86/mpegvideo_mmx.c
+++ b/libavcodec/x86/mpegvideo_mmx.c
@@ -29,6 +29,8 @@
#include "libavcodec/mpegvideo.h"
#include "dsputil_mmx.h"
+#if HAVE_INLINE_ASM
+
extern uint16_t ff_inv_zigzag_direct16[64];
@@ -626,8 +628,11 @@ static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
#include "mpegvideo_mmx_template.c"
#endif
+#endif /* HAVE_INLINE_ASM */
+
void ff_MPV_common_init_mmx(MpegEncContext *s)
{
+#if HAVE_INLINE_ASM
int mm_flags = av_get_cpu_flags();
if (mm_flags & AV_CPU_FLAG_MMX) {
@@ -662,4 +667,5 @@ void ff_MPV_common_init_mmx(MpegEncContext *s)
}
}
}
+#endif /* HAVE_INLINE_ASM */
}
diff --git a/libavformat/spdifenc.c b/libavformat/spdifenc.c
index 13b91e4750ba051acd4d75980056d2c695f93070..da688aa3936f43413415f277cd6e99b73336e807 100644
--- a/libavformat/spdifenc.c
+++ b/libavformat/spdifenc.c
@@ -49,7 +49,6 @@
#include "spdif.h"
#include "libavcodec/ac3.h"
#include "libavcodec/dca.h"
-#include "libavcodec/dcadata.h"
#include "libavcodec/aacadtsdec.h"
#include "libavutil/opt.h"
@@ -253,7 +252,7 @@ static int spdif_header_dts(AVFormatContext *s, AVPacket *pkt)
case DCA_MARKER_RAW_BE:
blocks = (AV_RB16(pkt->data + 4) >> 2) & 0x7f;
core_size = ((AV_RB24(pkt->data + 5) >> 4) & 0x3fff) + 1;
- sample_rate = dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
+ sample_rate = avpriv_dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
break;
case DCA_MARKER_RAW_LE:
blocks = (AV_RL16(pkt->data + 4) >> 2) & 0x7f;