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avcodec: add D3D12VA hardware accelerated HEVC decoding

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The command below is how to enable d3d12va:
ffmpeg -hwaccel d3d12va -i input.mp4 output.mp4

Signed-off-by: Wu Jianhua <toqsxw@outlook.com>
Signed-off-by: Tong Wu <tong1.wu@intel.com>
This commit is contained in:
Wu Jianhua 2023-12-05 14:46:45 +08:00 committed by Haihao Xiang
parent 349ce30e4e
commit cbb93c4ff6
7 changed files with 234 additions and 6 deletions
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2
configure vendored
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@ -3102,6 +3102,8 @@ hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
hevc_d3d11va_hwaccel_select="hevc_decoder"
hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
hevc_d3d11va2_hwaccel_select="hevc_decoder"
hevc_d3d12va_hwaccel_deps="d3d12va DXVA_PicParams_HEVC"
hevc_d3d12va_hwaccel_select="hevc_decoder"
hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
hevc_dxva2_hwaccel_select="hevc_decoder"
hevc_nvdec_hwaccel_deps="nvdec"

1
libavcodec/Makefile
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@ -1013,6 +1013,7 @@ OBJS-$(CONFIG_H264_VIDEOTOOLBOX_HWACCEL) += videotoolbox.o
OBJS-$(CONFIG_H264_VULKAN_HWACCEL) += vulkan_decode.o vulkan_h264.o
OBJS-$(CONFIG_HEVC_D3D11VA_HWACCEL) += dxva2_hevc.o
OBJS-$(CONFIG_HEVC_DXVA2_HWACCEL) += dxva2_hevc.o
OBJS-$(CONFIG_HEVC_D3D12VA_HWACCEL) += dxva2_hevc.o d3d12va_hevc.o
OBJS-$(CONFIG_HEVC_NVDEC_HWACCEL) += nvdec_hevc.o
OBJS-$(CONFIG_HEVC_QSV_HWACCEL) += qsvdec.o
OBJS-$(CONFIG_HEVC_VAAPI_HWACCEL) += vaapi_hevc.o h265_profile_level.o

208
libavcodec/d3d12va_hevc.c Normal file
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@ -0,0 +1,208 @@
/*
* Direct3D 12 HEVC HW acceleration
*
* copyright (c) 2022-2023 Wu Jianhua <toqsxw@outlook.com>
*
* 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 "config_components.h"
#include "libavutil/avassert.h"
#include "libavutil/hwcontext_d3d12va_internal.h"
#include "hevc_data.h"
#include "hevcdec.h"
#include "dxva2_internal.h"
#include "d3d12va_decode.h"
#include <dxva.h>
#define MAX_SLICES 256
typedef struct HEVCDecodePictureContext {
DXVA_PicParams_HEVC pp;
DXVA_Qmatrix_HEVC qm;
unsigned slice_count;
DXVA_Slice_HEVC_Short slice_short[MAX_SLICES];
const uint8_t *bitstream;
unsigned bitstream_size;
} HEVCDecodePictureContext;
static void fill_slice_short(DXVA_Slice_HEVC_Short *slice, unsigned position, unsigned size)
{
memset(slice, 0, sizeof(*slice));
slice->BSNALunitDataLocation = position;
slice->SliceBytesInBuffer = size;
slice->wBadSliceChopping = 0;
}
static int d3d12va_hevc_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
{
const HEVCContext *h = avctx->priv_data;
D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
HEVCDecodePictureContext *ctx_pic = h->ref->hwaccel_picture_private;
if (!ctx)
return -1;
av_assert0(ctx_pic);
ctx->used_mask = 0;
ff_dxva2_hevc_fill_picture_parameters(avctx, (AVDXVAContext *)ctx, &ctx_pic->pp);
ff_dxva2_hevc_fill_scaling_lists(avctx, (AVDXVAContext *)ctx, &ctx_pic->qm);
ctx_pic->slice_count = 0;
ctx_pic->bitstream_size = 0;
ctx_pic->bitstream = NULL;
return 0;
}
static int d3d12va_hevc_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
{
const HEVCContext *h = avctx->priv_data;
const HEVCFrame *current_picture = h->ref;
HEVCDecodePictureContext *ctx_pic = current_picture->hwaccel_picture_private;
unsigned position;
if (ctx_pic->slice_count >= MAX_SLICES)
return AVERROR(ERANGE);
if (!ctx_pic->bitstream)
ctx_pic->bitstream = buffer;
ctx_pic->bitstream_size += size;
position = buffer - ctx_pic->bitstream;
fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count], position, size);
ctx_pic->slice_count++;
return 0;
}
#define START_CODE 65536
#define START_CODE_SIZE 3
static int update_input_arguments(AVCodecContext *avctx, D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS *input_args, ID3D12Resource *buffer)
{
D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
AVHWFramesContext *frames_ctx = D3D12VA_FRAMES_CONTEXT(avctx);
AVD3D12VAFramesContext *frames_hwctx = frames_ctx->hwctx;
const HEVCContext *h = avctx->priv_data;
const HEVCFrame *current_picture = h->ref;
HEVCDecodePictureContext *ctx_pic = current_picture->hwaccel_picture_private;
int i;
uint8_t *mapped_data, *mapped_ptr;
DXVA_Slice_HEVC_Short *slice;
D3D12_VIDEO_DECODE_FRAME_ARGUMENT *args;
if (FAILED(ID3D12Resource_Map(buffer, 0, NULL, &mapped_data))) {
av_log(avctx, AV_LOG_ERROR, "Failed to map D3D12 Buffer resource!\n");
return AVERROR(EINVAL);
}
mapped_ptr = mapped_data;
for (i = 0; i < ctx_pic->slice_count; i++) {
UINT position, size;
slice = &ctx_pic->slice_short[i];
position = slice->BSNALunitDataLocation;
size = slice->SliceBytesInBuffer;
slice->SliceBytesInBuffer += START_CODE_SIZE;
slice->BSNALunitDataLocation = mapped_ptr - mapped_data;
*(uint32_t *)mapped_ptr = START_CODE;
mapped_ptr += START_CODE_SIZE;
memcpy(mapped_ptr, &ctx_pic->bitstream[position], size);
mapped_ptr += size;
}
ID3D12Resource_Unmap(buffer, 0, NULL);
input_args->CompressedBitstream = (D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM){
.pBuffer = buffer,
.Offset = 0,
.Size = mapped_ptr - mapped_data,
};
args = &input_args->FrameArguments[input_args->NumFrameArguments++];
args->Type = D3D12_VIDEO_DECODE_ARGUMENT_TYPE_SLICE_CONTROL;
args->Size = sizeof(DXVA_Slice_HEVC_Short) * ctx_pic->slice_count;
args->pData = ctx_pic->slice_short;
return 0;
}
static int d3d12va_hevc_end_frame(AVCodecContext *avctx)
{
HEVCContext *h = avctx->priv_data;
HEVCDecodePictureContext *ctx_pic = h->ref->hwaccel_picture_private;
int scale = ctx_pic->pp.dwCodingParamToolFlags & 1;
if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
return -1;
return ff_d3d12va_common_end_frame(avctx, h->ref->frame, &ctx_pic->pp, sizeof(ctx_pic->pp),
scale ? &ctx_pic->qm : NULL, scale ? sizeof(ctx_pic->qm) : 0, update_input_arguments);
}
static int d3d12va_hevc_decode_init(AVCodecContext *avctx)
{
HEVCContext *h = avctx->priv_data;
D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
DXVA_PicParams_HEVC pp;
switch (avctx->profile) {
case FF_PROFILE_HEVC_MAIN_10:
ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_HEVC_MAIN10;
break;
case FF_PROFILE_HEVC_MAIN_STILL_PICTURE:
av_log(avctx, AV_LOG_ERROR, "D3D12 doesn't support PROFILE_HEVC_MAIN_STILL_PICTURE!\n");
return AVERROR(EINVAL);
case FF_PROFILE_HEVC_MAIN:
default:
ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_HEVC_MAIN;
break;
};
ctx->max_num_ref = FF_ARRAY_ELEMS(pp.RefPicList) + 1;
return ff_d3d12va_decode_init(avctx);
}
#if CONFIG_HEVC_D3D12VA_HWACCEL
const FFHWAccel ff_hevc_d3d12va_hwaccel = {
.p.name = "hevc_d3d12va",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_HEVC,
.p.pix_fmt = AV_PIX_FMT_D3D12,
.init = d3d12va_hevc_decode_init,
.uninit = ff_d3d12va_decode_uninit,
.start_frame = d3d12va_hevc_start_frame,
.decode_slice = d3d12va_hevc_decode_slice,
.end_frame = d3d12va_hevc_end_frame,
.frame_params = ff_d3d12va_common_frame_params,
.frame_priv_data_size = sizeof(HEVCDecodePictureContext),
.priv_data_size = sizeof(D3D12VADecodeContext),
};
#endif

14
libavcodec/dxva2_hevc.c
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@ -57,9 +57,10 @@ static int get_refpic_index(const DXVA_PicParams_HEVC *pp, int surface_index)
return 0xff;
}
static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const HEVCContext *h,
void ff_dxva2_hevc_fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx,
DXVA_PicParams_HEVC *pp)
{
const HEVCContext *h = avctx->priv_data;
const HEVCFrame *current_picture = h->ref;
const HEVCSPS *sps = h->ps.sps;
const HEVCPPS *pps = h->ps.pps;
@ -79,8 +80,6 @@ static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *
(0 << 14) |
(0 << 15);
fill_picture_entry(&pp->CurrPic, ff_dxva2_get_surface_index(avctx, ctx, current_picture->frame, 1), 0);
pp->sps_max_dec_pic_buffering_minus1 = sps->temporal_layer[sps->max_sub_layers - 1].max_dec_pic_buffering - 1;
pp->log2_min_luma_coding_block_size_minus3 = sps->log2_min_cb_size - 3;
pp->log2_diff_max_min_luma_coding_block_size = sps->log2_diff_max_min_coding_block_size;
@ -179,6 +178,8 @@ static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *
}
}
fill_picture_entry(&pp->CurrPic, ff_dxva2_get_surface_index(avctx, ctx, current_picture->frame, 1), 0);
#define DO_REF_LIST(ref_idx, ref_list) { \
const RefPicList *rpl = &h->rps[ref_idx]; \
for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->ref_list); i++) { \
@ -200,8 +201,9 @@ static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *
pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
}
static void fill_scaling_lists(AVDXVAContext *ctx, const HEVCContext *h, DXVA_Qmatrix_HEVC *qm)
void ff_dxva2_hevc_fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_Qmatrix_HEVC *qm)
{
const HEVCContext *h = avctx->priv_data;
unsigned i, j, pos;
const ScalingList *sl = h->ps.pps->scaling_list_data_present_flag ?
&h->ps.pps->scaling_list : &h->ps.sps->scaling_list;
@ -369,10 +371,10 @@ static int dxva2_hevc_start_frame(AVCodecContext *avctx,
av_assert0(ctx_pic);
/* Fill up DXVA_PicParams_HEVC */
fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
ff_dxva2_hevc_fill_picture_parameters(avctx, ctx, &ctx_pic->pp);
/* Fill up DXVA_Qmatrix_HEVC */
fill_scaling_lists(ctx, h, &ctx_pic->qm);
ff_dxva2_hevc_fill_scaling_lists(avctx, ctx, &ctx_pic->qm);
ctx_pic->slice_count = 0;
ctx_pic->bitstream_size = 0;

4
libavcodec/dxva2_internal.h
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@ -171,4 +171,8 @@ void ff_dxva2_h264_fill_picture_parameters(const AVCodecContext *avctx, AVDXVACo
void ff_dxva2_h264_fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_Qmatrix_H264 *qm);
void ff_dxva2_hevc_fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_PicParams_HEVC *pp);
void ff_dxva2_hevc_fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_Qmatrix_HEVC *qm);
#endif /* AVCODEC_DXVA2_INTERNAL_H */

10
libavcodec/hevcdec.c
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@ -398,6 +398,7 @@ static enum AVPixelFormat get_format(HEVCContext *s, const HEVCSPS *sps)
{
#define HWACCEL_MAX (CONFIG_HEVC_DXVA2_HWACCEL + \
CONFIG_HEVC_D3D11VA_HWACCEL * 2 + \
CONFIG_HEVC_D3D12VA_HWACCEL + \
CONFIG_HEVC_NVDEC_HWACCEL + \
CONFIG_HEVC_VAAPI_HWACCEL + \
CONFIG_HEVC_VIDEOTOOLBOX_HWACCEL + \
@ -415,6 +416,9 @@ static enum AVPixelFormat get_format(HEVCContext *s, const HEVCSPS *sps)
*fmt++ = AV_PIX_FMT_D3D11VA_VLD;
*fmt++ = AV_PIX_FMT_D3D11;
#endif
#if CONFIG_HEVC_D3D12VA_HWACCEL
*fmt++ = AV_PIX_FMT_D3D12;
#endif
#if CONFIG_HEVC_VAAPI_HWACCEL
*fmt++ = AV_PIX_FMT_VAAPI;
#endif
@ -439,6 +443,9 @@ static enum AVPixelFormat get_format(HEVCContext *s, const HEVCSPS *sps)
*fmt++ = AV_PIX_FMT_D3D11VA_VLD;
*fmt++ = AV_PIX_FMT_D3D11;
#endif
#if CONFIG_HEVC_D3D12VA_HWACCEL
*fmt++ = AV_PIX_FMT_D3D12;
#endif
#if CONFIG_HEVC_VAAPI_HWACCEL
*fmt++ = AV_PIX_FMT_VAAPI;
#endif
@ -3701,6 +3708,9 @@ const FFCodec ff_hevc_decoder = {
#if CONFIG_HEVC_D3D11VA2_HWACCEL
HWACCEL_D3D11VA2(hevc),
#endif
#if CONFIG_HEVC_D3D12VA_HWACCEL
HWACCEL_D3D12VA(hevc),
#endif
#if CONFIG_HEVC_NVDEC_HWACCEL
HWACCEL_NVDEC(hevc),
#endif

1
libavcodec/hwaccels.h
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@ -39,6 +39,7 @@ extern const struct FFHWAccel ff_h264_videotoolbox_hwaccel;
extern const struct FFHWAccel ff_h264_vulkan_hwaccel;
extern const struct FFHWAccel ff_hevc_d3d11va_hwaccel;
extern const struct FFHWAccel ff_hevc_d3d11va2_hwaccel;
extern const struct FFHWAccel ff_hevc_d3d12va_hwaccel;
extern const struct FFHWAccel ff_hevc_dxva2_hwaccel;
extern const struct FFHWAccel ff_hevc_nvdec_hwaccel;
extern const struct FFHWAccel ff_hevc_vaapi_hwaccel;