From 074c4ca7fd77457f90ab2f4e772ffac8caf17f9c Mon Sep 17 00:00:00 2001
From: Roberto Togni <r_togni@tiscali.it>
Date: Fri, 7 Nov 2003 21:20:24 +0000
Subject: [PATCH] Add cr codec capability and buffer hints
Originally committed as revision 2484 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/avcodec.h | 25 ++++++++++++++++++++++++-
libavcodec/utils.c | 1 +
2 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 1bcad4cd737..499633ac680 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -16,7 +16,7 @@ extern "C" {
#define FFMPEG_VERSION_INT 0x000408
#define FFMPEG_VERSION "0.4.8"
-#define LIBAVCODEC_BUILD 4690
+#define LIBAVCODEC_BUILD 4691
#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
#define LIBAVCODEC_VERSION FFMPEG_VERSION
@@ -275,6 +275,10 @@ static const __attribute__((unused)) int Motion_Est_QTab[] =
used */
#define CODEC_CAP_PARSE_ONLY 0x0004
#define CODEC_CAP_TRUNCATED 0x0008
+/*
+ * Codec can use conditional replenishment if available.
+ */
+#define CODEC_CAP_CR 0x0010
/**
* Pan Scan area.
@@ -460,6 +464,13 @@ typedef struct AVPanScan{
* - decoding: set by lavc (default 0)\
*/\
int palette_has_changed;\
+ \
+ /**\
+ * Codec suggestion on buffer type if != 0\
+ * - encoding: unused\
+ * - decoding: set by lavc (before get_buffer() call))\
+ */\
+ int buffer_hints;\
#define FF_QSCALE_TYPE_MPEG1 0
#define FF_QSCALE_TYPE_MPEG2 1
@@ -477,6 +488,11 @@ typedef struct AVPanScan{
#define FF_SI_TYPE 5
#define FF_SP_TYPE 6
+#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore)
+#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
+#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
+#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
+
/**
* Audio Video Frame.
*/
@@ -1366,6 +1382,13 @@ typedef struct AVCodecContext {
*/
int noise_reduction;
+ /**
+ * Conditional replenishment support
+ * - encoding: unused
+ * - decoding: set by user, if 1 user can allocate reusable buffers
+ */
+ int cr_available;
+
} AVCodecContext;
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index ccb95f99812..2e944e4001a 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -326,6 +326,7 @@ void avcodec_get_context_defaults(AVCodecContext *s){
s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
s->palctrl = NULL;
+ s->cr_available = 0;
}
/**
--
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