diff --git a/configure b/configure
index 0f136054a8b464ea2d62a75e99e603f41d133c74..7a8fc2497a76f81c0c6437b1ee0934a3275439f3 100755
--- a/configure
+++ b/configure
@@ -107,6 +107,7 @@ Configuration options:
--disable-rdft disable RDFT code
--disable-vaapi disable VAAPI code
--disable-vdpau disable VDPAU code
+ --disable-dxva2 disable DXVA2 code
--enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
--enable-memalign-hack emulate memalign, interferes with memory debuggers
@@ -865,6 +866,7 @@ CONFIG_LIST="
bzlib
dct
doc
+ dxva2
fastdiv
ffmpeg
ffplay
@@ -1174,6 +1176,8 @@ h263_vaapi_hwaccel_select="vaapi h263_decoder"
h263i_decoder_select="h263_decoder"
h263p_encoder_select="h263_encoder"
h264_decoder_select="golomb"
+h264_dxva2_hwaccel_deps="dxva2api_h"
+h264_dxva2_hwaccel_select="dxva2 h264_decoder"
h264_vaapi_hwaccel_deps="va_va_h"
h264_vaapi_hwaccel_select="vaapi"
h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
@@ -2399,6 +2403,7 @@ check_func_headers windows.h VirtualAlloc
check_header conio.h
check_header dlfcn.h
+check_header dxva2api.h
check_header malloc.h
check_header poll.h
check_header sys/mman.h
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 3888589511291e2827f979bd45517f551c3edde1..24518479e8e3ba13b8fe2413e8a60d16ce04781a 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -3,7 +3,7 @@ include $(SUBDIR)../config.mak
NAME = avcodec
FFLIBS = avutil
-HEADERS = avcodec.h opt.h vaapi.h vdpau.h xvmc.h
+HEADERS = avcodec.h dxva2.h opt.h vaapi.h vdpau.h xvmc.h
OBJS = allcodecs.o \
audioconvert.o \
@@ -135,6 +135,7 @@ OBJS-$(CONFIG_H263_ENCODER) += mpegvideo_enc.o mpeg4video.o mpeg4vide
OBJS-$(CONFIG_H264_DECODER) += h264.o h264idct.o h264pred.o h264_loopfilter.o h264_direct.o cabac.o \
h264_sei.o h264_ps.o h264_refs.o h264_cavlc.o h264_cabac.o\
mpegvideo.o error_resilience.o
+OBJS-$(CONFIG_H264_DXVA2_HWACCEL) += dxva2_h264.o
OBJS-$(CONFIG_H264_ENCODER) += h264enc.o h264dspenc.o
OBJS-$(CONFIG_H264_VAAPI_HWACCEL) += vaapi_h264.o
OBJS-$(CONFIG_HUFFYUV_DECODER) += huffyuv.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 43e49d1792d147d5e737b91007a9388f57a91af8..b775b04f772d125a8b51cf41a9a4be2a81a8e196 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -55,6 +55,7 @@ void avcodec_register_all(void)
/* hardware accelerators */
REGISTER_HWACCEL (H263_VAAPI, h263_vaapi);
+ REGISTER_HWACCEL (H264_DXVA2, h264_dxva2);
REGISTER_HWACCEL (H264_VAAPI, h264_vaapi);
REGISTER_HWACCEL (MPEG2_VAAPI, mpeg2_vaapi);
REGISTER_HWACCEL (MPEG4_VAAPI, mpeg4_vaapi);
diff --git a/libavcodec/dxva2.h b/libavcodec/dxva2.h
new file mode 100644
index 0000000000000000000000000000000000000000..5c5fe21e2fe9ebc1b8a93cd80af355d5d033115c
--- /dev/null
+++ b/libavcodec/dxva2.h
@@ -0,0 +1,68 @@
+/*
+ * DXVA2 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ *
+ * 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
+ */
+
+#ifndef AVCODEC_DXVA_H
+#define AVCODEC_DXVA_H
+
+#include <stdint.h>
+
+#include <dxva2api.h>
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the DXVA2 FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct dxva_context {
+ /**
+ * DXVA2 decoder object
+ */
+ IDirectXVideoDecoder *decoder;
+
+ /**
+ * DXVA2 configuration used to create the decoder
+ */
+ const DXVA2_ConfigPictureDecode *cfg;
+
+ /**
+ * The number of surface in the surface array
+ */
+ unsigned surface_count;
+
+ /**
+ * The array of Direct3D surfaces used to create the decoder
+ */
+ LPDIRECT3DSURFACE9 *surface;
+
+ /**
+ * A bit field configuring the workarounds needed for using the decoder
+ */
+ uint64_t workaround;
+
+ /**
+ * Private to the FFmpeg AVHWAccel implementation
+ */
+ unsigned report_id;
+};
+
+#endif /* AVCODEC_DXVA_H */
diff --git a/libavcodec/dxva2_h264.c b/libavcodec/dxva2_h264.c
new file mode 100644
index 0000000000000000000000000000000000000000..9a832af392518a0cdf1e71fdaa242f55628ff32d
--- /dev/null
+++ b/libavcodec/dxva2_h264.c
@@ -0,0 +1,553 @@
+/*
+ * DXVA2 H264 HW acceleration.
+ *
+ * copyright (c) 2009 Laurent Aimar
+ *
+ * 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 "dxva2.h"
+#include "avcodec.h"
+
+#include "mpegvideo.h"
+#include "h264.h"
+#include "h264data.h"
+
+struct dxva2_picture_context {
+ DXVA_PicParams_H264 pp;
+ DXVA_Qmatrix_H264 qm;
+ unsigned slice_count;
+ DXVA_Slice_H264_Short slice_short[MAX_SLICES];
+ DXVA_Slice_H264_Long slice_long[MAX_SLICES];
+ const uint8_t *bitstream;
+ unsigned bitstream_size;
+};
+
+static void *get_surface(const Picture *picture)
+{
+ return picture->data[3];
+}
+static unsigned get_surface_index(const struct dxva_context *ctx,
+ const Picture *picture)
+{
+ void *surface = get_surface(picture);
+ unsigned i;
+
+ for (i = 0; i < ctx->surface_count; i++)
+ if (ctx->surface[i] == surface)
+ return i;
+
+ assert(0);
+ return 0;
+}
+
+static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
+ unsigned index, unsigned flag)
+{
+ assert((index&0x7f) == index && (flag&0x01) == flag);
+ pic->bPicEntry = index | (flag << 7);
+}
+
+static void fill_picture_parameters(struct dxva_context *ctx, const H264Context *h,
+ DXVA_PicParams_H264 *pp)
+{
+ const MpegEncContext *s = &h->s;
+ const Picture *current_picture = s->current_picture_ptr;
+ int i;
+
+ memset(pp, 0, sizeof(*pp));
+ /* Configure current picture */
+ fill_picture_entry(&pp->CurrPic,
+ get_surface_index(ctx, current_picture),
+ s->picture_structure == PICT_BOTTOM_FIELD);
+ /* Configure the set of references */
+ pp->UsedForReferenceFlags = 0;
+ pp->NonExistingFrameFlags = 0;
+ for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
+ if (i < h->short_ref_count + h->long_ref_count) {
+ const Picture *r;
+ if (i < h->short_ref_count) {
+ r = h->short_ref[i];
+ assert(!r->long_ref);
+ } else {
+ r = h->long_ref[i - h->short_ref_count];
+ assert(r->long_ref);
+ }
+ fill_picture_entry(&pp->RefFrameList[i],
+ get_surface_index(ctx, r),
+ r->long_ref != 0);
+
+ if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
+ pp->FieldOrderCntList[i][0] = r->field_poc[0];
+ if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
+ pp->FieldOrderCntList[i][1] = r->field_poc[1];
+
+ pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
+ if (r->reference & PICT_TOP_FIELD)
+ pp->UsedForReferenceFlags |= 1 << (2*i + 0);
+ if (r->reference & PICT_BOTTOM_FIELD)
+ pp->UsedForReferenceFlags |= 1 << (2*i + 1);
+ } else {
+ pp->RefFrameList[i].bPicEntry = 0xff;
+ pp->FieldOrderCntList[i][0] = 0;
+ pp->FieldOrderCntList[i][1] = 0;
+ pp->FrameNumList[i] = 0;
+ }
+ }
+
+ pp->wFrameWidthInMbsMinus1 = s->mb_width - 1;
+ pp->wFrameHeightInMbsMinus1 = s->mb_height - 1;
+ pp->num_ref_frames = h->sps.ref_frame_count;
+
+ pp->wBitFields = ((s->picture_structure != PICT_FRAME) << 0) |
+ (h->sps.mb_aff << 1) |
+ (h->sps.residual_color_transform_flag << 2) |
+ /* sp_for_switch_flag (not implemented by FFmpeg) */
+ (0 << 3) |
+ (h->sps.chroma_format_idc << 4) |
+ ((h->nal_ref_idc != 0) << 6) |
+ (h->pps.constrained_intra_pred << 7) |
+ (h->pps.weighted_pred << 8) |
+ (h->pps.weighted_bipred_idc << 9) |
+ /* MbsConsecutiveFlag */
+ (1 << 11) |
+ (h->sps.frame_mbs_only_flag << 12) |
+ (h->pps.transform_8x8_mode << 13) |
+ ((h->sps.level_idc >= 31) << 14) |
+ /* IntraPicFlag (Modified if we detect a non
+ * intra slice in decode_slice) */
+ (1 << 15);
+
+ pp->bit_depth_luma_minus8 = h->sps.bit_depth_luma - 8;
+ pp->bit_depth_chroma_minus8 = h->sps.bit_depth_chroma - 8;
+ pp->Reserved16Bits = 3; /* FIXME is there a way to detect the right mode ? */
+ pp->StatusReportFeedbackNumber = 1 + ctx->report_id++;
+ pp->CurrFieldOrderCnt[0] = 0;
+ if ((s->picture_structure & PICT_TOP_FIELD) &&
+ current_picture->field_poc[0] != INT_MAX)
+ pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
+ pp->CurrFieldOrderCnt[1] = 0;
+ if ((s->picture_structure & PICT_BOTTOM_FIELD) &&
+ current_picture->field_poc[1] != INT_MAX)
+ pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
+ pp->pic_init_qs_minus26 = h->pps.init_qs - 26;
+ pp->chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
+ pp->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
+ pp->ContinuationFlag = 1;
+ pp->pic_init_qp_minus26 = h->pps.init_qp - 26;
+ pp->num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
+ pp->num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
+ pp->Reserved8BitsA = 0;
+ pp->frame_num = h->frame_num;
+ pp->log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
+ pp->pic_order_cnt_type = h->sps.poc_type;
+ if (h->sps.poc_type == 0)
+ pp->log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
+ else if (h->sps.poc_type == 1)
+ pp->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
+ pp->direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
+ pp->entropy_coding_mode_flag = h->pps.cabac;
+ pp->pic_order_present_flag = h->pps.pic_order_present;
+ pp->num_slice_groups_minus1 = h->pps.slice_group_count - 1;
+ pp->slice_group_map_type = h->pps.mb_slice_group_map_type;
+ pp->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
+ pp->redundant_pic_cnt_present_flag= h->pps.redundant_pic_cnt_present;
+ pp->Reserved8BitsB = 0;
+ pp->slice_group_change_rate_minus1= 0; /* XXX not implemented by FFmpeg */
+ //pp->SliceGroupMap[810]; /* XXX not implemented by FFmpeg */
+}
+
+static void fill_scaling_lists(const H264Context *h, DXVA_Qmatrix_H264 *qm)
+{
+ unsigned i, j;
+ memset(qm, 0, sizeof(*qm));
+ for (i = 0; i < 6; i++)
+ for (j = 0; j < 16; j++)
+ qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][zigzag_scan[j]];
+
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 64; j++)
+ qm->bScalingLists8x8[i][j] = h->pps.scaling_matrix8[i][ff_zigzag_direct[j]];
+}
+
+static int is_slice_short(struct dxva_context *ctx)
+{
+ assert(ctx->cfg->ConfigBitstreamRaw == 1 ||
+ ctx->cfg->ConfigBitstreamRaw == 2);
+ return ctx->cfg->ConfigBitstreamRaw == 2;
+}
+
+static void fill_slice_short(DXVA_Slice_H264_Short *slice,
+ unsigned position, unsigned size)
+{
+ memset(slice, 0, sizeof(*slice));
+ slice->BSNALunitDataLocation = position;
+ slice->SliceBytesInBuffer = size;
+ slice->wBadSliceChopping = 0;
+}
+
+static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
+ unsigned position, unsigned size)
+{
+ H264Context *h = avctx->priv_data; /* FIXME Can't use const because of get_bits_count */
+ struct dxva_context *ctx = avctx->hwaccel_context;
+ MpegEncContext *s = &h->s;
+ unsigned list;
+
+ memset(slice, 0, sizeof(*slice));
+ slice->BSNALunitDataLocation = position;
+ slice->SliceBytesInBuffer = size;
+ slice->wBadSliceChopping = 0;
+
+ slice->first_mb_in_slice = (s->mb_y >> FIELD_OR_MBAFF_PICTURE) * s->mb_width + s->mb_x;
+ slice->NumMbsForSlice = 0; /* XXX it is set once we have all slices */
+ slice->BitOffsetToSliceData = get_bits_count(&s->gb) + 8;
+ slice->slice_type = ff_h264_get_slice_type(h);
+ if (h->slice_type_fixed)
+ slice->slice_type += 5;
+ slice->luma_log2_weight_denom = h->luma_log2_weight_denom;
+ slice->chroma_log2_weight_denom = h->chroma_log2_weight_denom;
+ if (h->list_count > 0)
+ slice->num_ref_idx_l0_active_minus1 = h->ref_count[0] - 1;
+ if (h->list_count > 1)
+ slice->num_ref_idx_l1_active_minus1 = h->ref_count[1] - 1;
+ slice->slice_alpha_c0_offset_div2 = h->slice_alpha_c0_offset / 2;
+ slice->slice_beta_offset_div2 = h->slice_beta_offset / 2;
+ slice->Reserved8Bits = 0;
+
+ for (list = 0; list < 2; list++) {
+ unsigned i;
+ for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
+ if (list < h->list_count && i < h->ref_count[list]) {
+ const Picture *r = &h->ref_list[list][i];
+ unsigned plane;
+ fill_picture_entry(&slice->RefPicList[list][i],
+ get_surface_index(ctx, r),
+ r->reference == PICT_BOTTOM_FIELD);
+ for (plane = 0; plane < 3; plane++) {
+ int w, o;
+ if (plane == 0 && h->luma_weight_flag[list]) {
+ w = h->luma_weight[list][i];
+ o = h->luma_offset[list][i];
+ } else if (plane >= 1 && h->chroma_weight_flag[list]) {
+ w = h->chroma_weight[list][i][plane-1];
+ o = h->chroma_offset[list][i][plane-1];
+ } else {
+ w = 1 << (plane == 0 ? h->luma_log2_weight_denom :
+ h->chroma_log2_weight_denom);
+ o = 0;
+ }
+ slice->Weights[list][i][plane][0] = w;
+ slice->Weights[list][i][plane][1] = o;
+ }
+ } else {
+ unsigned plane;
+ slice->RefPicList[list][i].bPicEntry = 0xff;
+ for (plane = 0; plane < 3; plane++) {
+ slice->Weights[list][i][plane][0] = 0;
+ slice->Weights[list][i][plane][1] = 0;
+ }
+ }
+ }
+ }
+ slice->slice_qs_delta = 0; /* XXX not implemented by FFmpeg */
+ slice->slice_qp_delta = s->qscale - h->pps.init_qp;
+ slice->redundant_pic_cnt = h->redundant_pic_count;
+ if (h->slice_type == FF_B_TYPE)
+ slice->direct_spatial_mv_pred_flag = h->direct_spatial_mv_pred;
+ slice->cabac_init_idc = h->pps.cabac ? h->cabac_init_idc : 0;
+ if (h->deblocking_filter < 2)
+ slice->disable_deblocking_filter_idc = 1 - h->deblocking_filter;
+ else
+ slice->disable_deblocking_filter_idc = h->deblocking_filter;
+ slice->slice_id = h->current_slice - 1;
+}
+
+static int commit_buffer(AVCodecContext *avctx,
+ struct dxva_context *ctx,
+ DXVA2_DecodeBufferDesc *dsc,
+ unsigned type, const void *data, unsigned size,
+ unsigned mb_count)
+{
+ void *dxva_data;
+ unsigned dxva_size;
+ int result;
+
+ if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->decoder, type,
+ &dxva_data, &dxva_size))) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to get a buffer for %d\n", type);
+ return -1;
+ }
+ if (size <= dxva_size) {
+ memcpy(dxva_data, data, size);
+
+ memset(dsc, 0, sizeof(*dsc));
+ dsc->CompressedBufferType = type;
+ dsc->DataSize = size;
+ dsc->NumMBsInBuffer = mb_count;
+
+ result = 0;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Buffer for type %d was too small\n", type);
+ result = -1;
+ }
+ if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->decoder, type))) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to release buffer type %d\n", type);
+ result = -1;
+ }
+ return result;
+}
+
+static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
+ struct dxva_context *ctx,
+ struct dxva2_picture_context *ctx_pic,
+ DXVA2_DecodeBufferDesc *bs,
+ DXVA2_DecodeBufferDesc *sc,
+ unsigned mb_count)
+{
+ DXVA_Slice_H264_Short *slice = NULL;
+ uint8_t *dxva_data, *current, *end;
+ unsigned dxva_size;
+ void *slice_data;
+ unsigned slice_size;
+ unsigned padding;
+ unsigned i;
+
+ /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
+ if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->decoder,
+ DXVA2_BitStreamDateBufferType,
+ &dxva_data, &dxva_size)))
+ return -1;
+ current = dxva_data;
+ end = dxva_data + dxva_size;
+
+ for (i = 0; i < ctx_pic->slice_count; i++) {
+ static const uint8_t start_code[] = { 0, 0, 1 };
+ static const unsigned start_code_size = sizeof(start_code);
+ unsigned position, size;
+
+ assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
+ offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
+ assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
+ offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
+
+ if (is_slice_short(ctx))
+ slice = &ctx_pic->slice_short[i];
+ else
+ slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
+
+ position = slice->BSNALunitDataLocation;
+ size = slice->SliceBytesInBuffer;
+ if (start_code_size + size > end - current) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
+ break;
+ }
+
+ slice->BSNALunitDataLocation = current - dxva_data;
+ slice->SliceBytesInBuffer = start_code_size + size;
+
+ if (!is_slice_short(ctx)) {
+ DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
+ if (i < ctx_pic->slice_count - 1)
+ slice_long->NumMbsForSlice =
+ slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
+ else
+ slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
+ }
+
+ memcpy(current, start_code, start_code_size);
+ current += start_code_size;
+
+ memcpy(current, &ctx_pic->bitstream[position], size);
+ current += size;
+ }
+ padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
+ if (slice && padding > 0) {
+ memset(current, 0, padding);
+ current += padding;
+
+ slice->SliceBytesInBuffer += padding;
+ }
+ if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->decoder,
+ DXVA2_BitStreamDateBufferType)))
+ return -1;
+ if (i < ctx_pic->slice_count)
+ return -1;
+
+ memset(bs, 0, sizeof(*bs));
+ bs->CompressedBufferType = DXVA2_BitStreamDateBufferType;
+ bs->DataSize = current - dxva_data;
+ bs->NumMBsInBuffer = mb_count;
+
+ if (is_slice_short(ctx)) {
+ slice_data = ctx_pic->slice_short;
+ slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
+ } else {
+ slice_data = ctx_pic->slice_long;
+ slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
+ }
+ assert((bs->DataSize & 127) == 0);
+ return commit_buffer(avctx, ctx, sc,
+ DXVA2_SliceControlBufferType,
+ slice_data, slice_size, mb_count);
+}
+
+
+static int start_frame(AVCodecContext *avctx,
+ av_unused const uint8_t *buffer,
+ av_unused uint32_t size)
+{
+ const H264Context *h = avctx->priv_data;
+ struct dxva_context *ctx = avctx->hwaccel_context;
+ struct dxva2_picture_context *ctx_pic = h->s.current_picture_ptr->hwaccel_picture_private;
+
+ if (!ctx->decoder || !ctx->cfg || ctx->surface_count <= 0)
+ return -1;
+ assert(ctx_pic);
+
+ /* Fill up DXVA_PicParams_H264 */
+ fill_picture_parameters(ctx, h, &ctx_pic->pp);
+
+ /* Fill up DXVA_Qmatrix_H264 */
+ fill_scaling_lists(h, &ctx_pic->qm);
+
+ ctx_pic->slice_count = 0;
+ ctx_pic->bitstream_size = 0;
+ ctx_pic->bitstream = NULL;
+ return 0;
+}
+
+static int decode_slice(AVCodecContext *avctx,
+ const uint8_t *buffer, uint32_t size)
+{
+ H264Context *h = avctx->priv_data; /* FIXME Can't use const because of get_bits_count */
+ struct dxva_context *ctx = avctx->hwaccel_context;
+ const Picture *current_picture = h->s.current_picture_ptr;
+ struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
+ unsigned position;
+
+ if (ctx_pic->slice_count >= MAX_SLICES)
+ return -1;
+
+ if (!ctx_pic->bitstream)
+ ctx_pic->bitstream = buffer;
+ ctx_pic->bitstream_size += size;
+
+ position = buffer - ctx_pic->bitstream;
+ if (is_slice_short(ctx))
+ fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
+ position, size);
+ else
+ fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
+ position, size);
+ ctx_pic->slice_count++;
+
+ if (h->slice_type != FF_I_TYPE && h->slice_type != FF_SI_TYPE)
+ ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
+ return 0;
+}
+
+static int end_frame(AVCodecContext *avctx)
+{
+ H264Context *h = avctx->priv_data;
+ MpegEncContext *s = &h->s;
+ const unsigned mb_count = s->mb_width * s->mb_height;
+ struct dxva_context *ctx = avctx->hwaccel_context;
+ const Picture *current_picture = h->s.current_picture_ptr;
+ struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
+ unsigned buffer_count = 0;
+ DXVA2_DecodeBufferDesc buffer[4];
+ DXVA2_DecodeExecuteParams exec;
+ int result;
+
+ if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
+ return -1;
+
+ if (FAILED(IDirectXVideoDecoder_BeginFrame(ctx->decoder,
+ get_surface(current_picture),
+ NULL))) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to begin frame\n");
+ return -1;
+ }
+
+ result = commit_buffer(avctx, ctx, &buffer[buffer_count],
+ DXVA2_PictureParametersBufferType,
+ &ctx_pic->pp, sizeof(ctx_pic->pp), 0);
+ if (result) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to add picture parameter buffer\n");
+ goto end;
+ }
+ buffer_count++;
+
+ result = commit_buffer(avctx, ctx, &buffer[buffer_count],
+ DXVA2_InverseQuantizationMatrixBufferType,
+ &ctx_pic->qm, sizeof(ctx_pic->qm), 0);
+ if (result) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to add inverse quantization matrix buffer\n");
+ goto end;
+ }
+ buffer_count++;
+
+ result = commit_bitstream_and_slice_buffer(avctx, ctx, ctx_pic,
+ &buffer[buffer_count + 0],
+ &buffer[buffer_count + 1],
+ mb_count);
+ if (result) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Failed to add bitstream or slice control buffer\n");
+ goto end;
+ }
+ buffer_count += 2;
+
+ /* TODO Film Grain when possible */
+
+ assert(buffer_count == 4);
+
+ memset(&exec, 0, sizeof(exec));
+ exec.NumCompBuffers = buffer_count;
+ exec.pCompressedBuffers = buffer;
+ exec.pExtensionData = NULL;
+ if (FAILED(IDirectXVideoDecoder_Execute(ctx->decoder, &exec))) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to execute\n");
+ result = -1;
+ }
+
+end:
+ if (FAILED(IDirectXVideoDecoder_EndFrame(ctx->decoder, NULL))) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to end frame\n");
+ result = -1;
+ }
+
+ if (!result)
+ ff_draw_horiz_band(s, 0, s->avctx->height);
+ return result;
+}
+
+AVHWAccel h264_dxva2_hwaccel = {
+ .name = "h264_dxva2",
+ .type = CODEC_TYPE_VIDEO,
+ .id = CODEC_ID_H264,
+ .pix_fmt = PIX_FMT_DXVA2_VLD,
+ .capabilities = 0,
+ .start_frame = start_frame,
+ .decode_slice = decode_slice,
+ .end_frame = end_frame,
+ .priv_data_size = sizeof(struct dxva2_picture_context),
+};
+
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 7f77d00d57e699c01b723ac41d8dd2eb841b9d3b..0ad5718c69f7e7d1346f8a56429edc7100ba8ada 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -81,6 +81,7 @@ const enum PixelFormat ff_pixfmt_list_420[] = {
};
const enum PixelFormat ff_hwaccel_pixfmt_list_420[] = {
+ PIX_FMT_DXVA2_VLD,
PIX_FMT_VAAPI_VLD,
PIX_FMT_YUV420P,
PIX_FMT_NONE
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index b689519fde0bb2023ef47491e8929184abc51bd0..972da4578f11ae7cb59bd6cc0bfbcdbfb9125a0f 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -646,6 +646,12 @@ const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
},
.flags = PIX_FMT_BE,
},
+ [PIX_FMT_DXVA2_VLD] = {
+ .name = "dxva2_vld",
+ .log2_chroma_w = 1,
+ .log2_chroma_h = 1,
+ .flags = PIX_FMT_HWACCEL,
+ },
};
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index a18da18af41138c5e7c9b084d6050a6ab0c11fe6..6eddde02bbdd118b235aa91f6361ec8a3665d135 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -126,6 +126,7 @@ enum PixelFormat {
PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
PIX_FMT_VDPAU_MPEG4, ///< MPEG4 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
+ PIX_FMT_DXVA2_VLD, ///< HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer
PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
};