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ffmpeg/libavcodec/dxva2.c
Hendrik Leppkes 8f4aec719e avcodec/dxva2: add AV1 decode support 
Signed-off-by: Hendrik Leppkes <h.leppkes@gmail.com>
2020-11-12 15:55:16 +01:00

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/*
* DXVA2 HW acceleration.
*
* copyright (c) 2010 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 <assert.h>
#include <string.h>
#include <initguid.h>
#include "libavutil/common.h"
#include "libavutil/log.h"
#include "libavutil/time.h"
#include "avcodec.h"
#include "decode.h"
#include "dxva2_internal.h"
/* define all the GUIDs used directly here,
to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */
DEFINE_GUID(ff_DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);
DEFINE_GUID(ff_DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60);
DEFINE_GUID(ff_DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(ff_DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(ff_DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6);
DEFINE_GUID(ff_DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(ff_DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(ff_DXVA2_ModeHEVC_VLD_Main, 0x5b11d51b, 0x2f4c,0x4452,0xbc,0xc3,0x09,0xf2,0xa1,0x16,0x0c,0xc0);
DEFINE_GUID(ff_DXVA2_ModeHEVC_VLD_Main10,0x107af0e0, 0xef1a,0x4d19,0xab,0xa8,0x67,0xa1,0x63,0x07,0x3d,0x13);
DEFINE_GUID(ff_DXVA2_ModeVP9_VLD_Profile0,0x463707f8,0xa1d0,0x4585,0x87,0x6d,0x83,0xaa,0x6d,0x60,0xb8,0x9e);
DEFINE_GUID(ff_DXVA2_ModeVP9_VLD_10bit_Profile2,0xa4c749ef,0x6ecf,0x48aa,0x84,0x48,0x50,0xa7,0xa1,0x16,0x5f,0xf7);
DEFINE_GUID(ff_DXVA2_ModeAV1_VLD_Profile0,0xb8be4ccb,0xcf53,0x46ba,0x8d,0x59,0xd6,0xb8,0xa6,0xda,0x5d,0x2a);
DEFINE_GUID(ff_DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(ff_GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
DEFINE_GUID(ff_IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
typedef struct dxva_mode {
const GUID *guid;
enum AVCodecID codec;
// List of supported profiles, terminated by a FF_PROFILE_UNKNOWN entry.
// If NULL, don't check profile.
const int *profiles;
} dxva_mode;
static const int prof_mpeg2_main[] = {FF_PROFILE_MPEG2_SIMPLE,
FF_PROFILE_MPEG2_MAIN,
FF_PROFILE_UNKNOWN};
static const int prof_h264_high[] = {FF_PROFILE_H264_CONSTRAINED_BASELINE,
FF_PROFILE_H264_MAIN,
FF_PROFILE_H264_HIGH,
FF_PROFILE_UNKNOWN};
static const int prof_hevc_main[] = {FF_PROFILE_HEVC_MAIN,
FF_PROFILE_UNKNOWN};
static const int prof_hevc_main10[] = {FF_PROFILE_HEVC_MAIN_10,
FF_PROFILE_UNKNOWN};
static const int prof_vp9_profile0[] = {FF_PROFILE_VP9_0,
FF_PROFILE_UNKNOWN};
static const int prof_vp9_profile2[] = {FF_PROFILE_VP9_2,
FF_PROFILE_UNKNOWN};
static const int prof_av1_profile0[] = {FF_PROFILE_AV1_MAIN,
FF_PROFILE_UNKNOWN};
static const dxva_mode dxva_modes[] = {
/* MPEG-2 */
{ &ff_DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO, prof_mpeg2_main },
{ &ff_DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO, prof_mpeg2_main },
/* H.264 */
{ &ff_DXVA2_ModeH264_F, AV_CODEC_ID_H264, prof_h264_high },
{ &ff_DXVA2_ModeH264_E, AV_CODEC_ID_H264, prof_h264_high },
/* Intel specific H.264 mode */
{ &ff_DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264, prof_h264_high },
/* VC-1 / WMV3 */
{ &ff_DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
{ &ff_DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
{ &ff_DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
{ &ff_DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
/* HEVC/H.265 */
{ &ff_DXVA2_ModeHEVC_VLD_Main10, AV_CODEC_ID_HEVC, prof_hevc_main10 },
{ &ff_DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC, prof_hevc_main },
/* VP8/9 */
{ &ff_DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9, prof_vp9_profile0 },
{ &ff_DXVA2_ModeVP9_VLD_10bit_Profile2, AV_CODEC_ID_VP9, prof_vp9_profile2 },
/* AV1 */
{ &ff_DXVA2_ModeAV1_VLD_Profile0, AV_CODEC_ID_AV1, prof_av1_profile0 },
{ NULL, 0 },
};
static int dxva_get_decoder_configuration(AVCodecContext *avctx,
const void *cfg_list,
unsigned cfg_count)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
unsigned i, best_score = 0;
int best_cfg = -1;
for (i = 0; i < cfg_count; i++) {
unsigned score;
UINT ConfigBitstreamRaw;
GUID guidConfigBitstreamEncryption;
#if CONFIG_D3D11VA
if (sctx->pix_fmt == AV_PIX_FMT_D3D11) {
D3D11_VIDEO_DECODER_CONFIG *cfg = &((D3D11_VIDEO_DECODER_CONFIG *)cfg_list)[i];
ConfigBitstreamRaw = cfg->ConfigBitstreamRaw;
guidConfigBitstreamEncryption = cfg->guidConfigBitstreamEncryption;
}
#endif
#if CONFIG_DXVA2
if (sctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
DXVA2_ConfigPictureDecode *cfg = &((DXVA2_ConfigPictureDecode *)cfg_list)[i];
ConfigBitstreamRaw = cfg->ConfigBitstreamRaw;
guidConfigBitstreamEncryption = cfg->guidConfigBitstreamEncryption;
}
#endif
if (ConfigBitstreamRaw == 1)
score = 1;
else if (avctx->codec_id == AV_CODEC_ID_H264 && ConfigBitstreamRaw == 2)
score = 2;
else
continue;
if (IsEqualGUID(&guidConfigBitstreamEncryption, &ff_DXVA2_NoEncrypt))
score += 16;
if (score > best_score) {
best_score = score;
best_cfg = i;
}
}
if (!best_score) {
av_log(avctx, AV_LOG_VERBOSE, "No valid decoder configuration available\n");
return AVERROR(EINVAL);
}
return best_cfg;
}
#if CONFIG_D3D11VA
static int d3d11va_validate_output(void *service, GUID guid, const void *surface_format)
{
HRESULT hr;
BOOL is_supported = FALSE;
hr = ID3D11VideoDevice_CheckVideoDecoderFormat((ID3D11VideoDevice *)service,
&guid,
*(DXGI_FORMAT *)surface_format,
&is_supported);
return SUCCEEDED(hr) && is_supported;
}
#endif
#if CONFIG_DXVA2
static int dxva2_validate_output(void *decoder_service, GUID guid, const void *surface_format)
{
HRESULT hr;
int ret = 0;
unsigned j, target_count;
D3DFORMAT *target_list;
hr = IDirectXVideoDecoderService_GetDecoderRenderTargets((IDirectXVideoDecoderService *)decoder_service, &guid, &target_count, &target_list);
if (SUCCEEDED(hr)) {
for (j = 0; j < target_count; j++) {
const D3DFORMAT format = target_list[j];
if (format == *(D3DFORMAT *)surface_format) {
ret = 1;
break;
}
}
CoTaskMemFree(target_list);
}
return ret;
}
#endif
static int dxva_check_codec_compatibility(AVCodecContext *avctx, const dxva_mode *mode)
{
if (mode->codec != avctx->codec_id)
return 0;
if (mode->profiles && !(avctx->hwaccel_flags & AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH)) {
int i, found = 0;
for (i = 0; mode->profiles[i] != FF_PROFILE_UNKNOWN; i++) {
if (avctx->profile == mode->profiles[i]) {
found = 1;
break;
}
}
if (!found)
return 0;
}
return 1;
}
static void dxva_list_guids_debug(AVCodecContext *avctx, void *service,
unsigned guid_count, const GUID *guid_list)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
int i;
av_log(avctx, AV_LOG_VERBOSE, "Decoder GUIDs reported as supported:\n");
for (i = 0; i < guid_count; i++) {
const GUID *guid = &guid_list[i];
av_log(avctx, AV_LOG_VERBOSE,
"{%8.8x-%4.4x-%4.4x-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x}",
(unsigned) guid->Data1, guid->Data2, guid->Data3,
guid->Data4[0], guid->Data4[1],
guid->Data4[2], guid->Data4[3],
guid->Data4[4], guid->Data4[5],
guid->Data4[6], guid->Data4[7]);
#if CONFIG_D3D11VA
if (sctx->pix_fmt == AV_PIX_FMT_D3D11) {
DXGI_FORMAT format;
// We don't know the maximum valid DXGI_FORMAT, so use 200 as
// arbitrary upper bound (that could become outdated).
for (format = 0; format < 200; format++) {
if (d3d11va_validate_output(service, *guid, &format))
av_log(avctx, AV_LOG_VERBOSE, " %d", (int)format);
}
}
#endif
#if CONFIG_DXVA2
if (sctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
const D3DFORMAT formats[] = {MKTAG('N', 'V', '1', '2'),
MKTAG('P', '0', '1', '0')};
int i;
for (i = 0; i < FF_ARRAY_ELEMS(formats); i++) {
if (dxva2_validate_output(service, *guid, &formats[i]))
av_log(avctx, AV_LOG_VERBOSE, " %d", i);
}
}
#endif
av_log(avctx, AV_LOG_VERBOSE, "\n");
}
}
static int dxva_get_decoder_guid(AVCodecContext *avctx, void *service, void *surface_format,
unsigned guid_count, const GUID *guid_list, GUID *decoder_guid)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
unsigned i, j;
dxva_list_guids_debug(avctx, service, guid_count, guid_list);
*decoder_guid = ff_GUID_NULL;
for (i = 0; dxva_modes[i].guid; i++) {
const dxva_mode *mode = &dxva_modes[i];
int validate;
if (!dxva_check_codec_compatibility(avctx, mode))
continue;
for (j = 0; j < guid_count; j++) {
if (IsEqualGUID(mode->guid, &guid_list[j]))
break;
}
if (j == guid_count)
continue;
#if CONFIG_D3D11VA
if (sctx->pix_fmt == AV_PIX_FMT_D3D11)
validate = d3d11va_validate_output(service, *mode->guid, surface_format);
#endif
#if CONFIG_DXVA2
if (sctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
validate = dxva2_validate_output(service, *mode->guid, surface_format);
#endif
if (validate) {
*decoder_guid = *mode->guid;
break;
}
}
if (IsEqualGUID(decoder_guid, &ff_GUID_NULL)) {
av_log(avctx, AV_LOG_VERBOSE, "No decoder device for codec found\n");
return AVERROR(EINVAL);
}
if (IsEqualGUID(decoder_guid, &ff_DXVADDI_Intel_ModeH264_E))
sctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
return 0;
}
static void bufref_free_interface(void *opaque, uint8_t *data)
{
IUnknown_Release((IUnknown *)opaque);
}
static AVBufferRef *bufref_wrap_interface(IUnknown *iface)
{
return av_buffer_create((uint8_t*)iface, 1, bufref_free_interface, iface, 0);
}
#if CONFIG_DXVA2
static int dxva2_get_decoder_configuration(AVCodecContext *avctx, const GUID *device_guid,
const DXVA2_VideoDesc *desc,
DXVA2_ConfigPictureDecode *config)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
unsigned cfg_count;
DXVA2_ConfigPictureDecode *cfg_list;
HRESULT hr;
int ret;
hr = IDirectXVideoDecoderService_GetDecoderConfigurations(sctx->dxva2_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Unable to retrieve decoder configurations\n");
return AVERROR(EINVAL);
}
ret = dxva_get_decoder_configuration(avctx, cfg_list, cfg_count);
if (ret >= 0)
*config = cfg_list[ret];
CoTaskMemFree(cfg_list);
return ret;
}
static int dxva2_create_decoder(AVCodecContext *avctx)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
GUID *guid_list;
unsigned guid_count;
GUID device_guid;
D3DFORMAT surface_format = avctx->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
MKTAG('P', '0', '1', '0') : MKTAG('N', 'V', '1', '2');
DXVA2_VideoDesc desc = { 0 };
DXVA2_ConfigPictureDecode config;
HRESULT hr;
int ret;
HANDLE device_handle;
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
AVDXVA2FramesContext *frames_hwctx = frames_ctx->hwctx;
AVDXVA2DeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr,
&device_handle);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to open a device handle\n");
goto fail;
}
hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_handle,
&ff_IID_IDirectXVideoDecoderService,
(void **)&sctx->dxva2_service);
IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, device_handle);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to create IDirectXVideoDecoderService\n");
goto fail;
}
hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(sctx->dxva2_service, &guid_count, &guid_list);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to retrieve decoder device GUIDs\n");
goto fail;
}
ret = dxva_get_decoder_guid(avctx, sctx->dxva2_service, &surface_format,
guid_count, guid_list, &device_guid);
CoTaskMemFree(guid_list);
if (ret < 0) {
goto fail;
}
desc.SampleWidth = avctx->coded_width;
desc.SampleHeight = avctx->coded_height;
desc.Format = surface_format;
ret = dxva2_get_decoder_configuration(avctx, &device_guid, &desc, &config);
if (ret < 0) {
goto fail;
}
hr = IDirectXVideoDecoderService_CreateVideoDecoder(sctx->dxva2_service, &device_guid,
&desc, &config, frames_hwctx->surfaces,
frames_hwctx->nb_surfaces, &sctx->dxva2_decoder);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to create DXVA2 video decoder\n");
goto fail;
}
sctx->dxva2_config = config;
sctx->decoder_ref = bufref_wrap_interface((IUnknown *)sctx->dxva2_decoder);
if (!sctx->decoder_ref)
return AVERROR(ENOMEM);
return 0;
fail:
return AVERROR(EINVAL);
}
#endif
#if CONFIG_D3D11VA
static int d3d11va_get_decoder_configuration(AVCodecContext *avctx,
ID3D11VideoDevice *video_device,
const D3D11_VIDEO_DECODER_DESC *desc,
D3D11_VIDEO_DECODER_CONFIG *config)
{
unsigned cfg_count = 0;
D3D11_VIDEO_DECODER_CONFIG *cfg_list = NULL;
HRESULT hr;
int i, ret;
hr = ID3D11VideoDevice_GetVideoDecoderConfigCount(video_device, desc, &cfg_count);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Unable to retrieve decoder configurations\n");
return AVERROR(EINVAL);
}
cfg_list = av_malloc_array(cfg_count, sizeof(D3D11_VIDEO_DECODER_CONFIG));
if (cfg_list == NULL)
return AVERROR(ENOMEM);
for (i = 0; i < cfg_count; i++) {
hr = ID3D11VideoDevice_GetVideoDecoderConfig(video_device, desc, i, &cfg_list[i]);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Unable to retrieve decoder configurations. (hr=0x%lX)\n", hr);
av_free(cfg_list);
return AVERROR(EINVAL);
}
}
ret = dxva_get_decoder_configuration(avctx, cfg_list, cfg_count);
if (ret >= 0)
*config = cfg_list[ret];
av_free(cfg_list);
return ret;
}
static DXGI_FORMAT d3d11va_map_sw_to_hw_format(enum AVPixelFormat pix_fmt)
{
switch (pix_fmt) {
case AV_PIX_FMT_NV12: return DXGI_FORMAT_NV12;
case AV_PIX_FMT_P010: return DXGI_FORMAT_P010;
case AV_PIX_FMT_YUV420P: return DXGI_FORMAT_420_OPAQUE;
default: return DXGI_FORMAT_UNKNOWN;
}
}
static int d3d11va_create_decoder(AVCodecContext *avctx)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
GUID *guid_list;
unsigned guid_count, i;
GUID decoder_guid;
D3D11_VIDEO_DECODER_DESC desc = { 0 };
D3D11_VIDEO_DECODER_CONFIG config;
AVHWFramesContext *frames_ctx = (AVHWFramesContext *)avctx->hw_frames_ctx->data;
AVD3D11VADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
AVD3D11VAFramesContext *frames_hwctx = frames_ctx->hwctx;
DXGI_FORMAT surface_format = d3d11va_map_sw_to_hw_format(frames_ctx->sw_format);
D3D11_TEXTURE2D_DESC texdesc;
HRESULT hr;
int ret;
if (!frames_hwctx->texture) {
av_log(avctx, AV_LOG_ERROR, "AVD3D11VAFramesContext.texture not set.\n");
return AVERROR(EINVAL);
}
ID3D11Texture2D_GetDesc(frames_hwctx->texture, &texdesc);
guid_count = ID3D11VideoDevice_GetVideoDecoderProfileCount(device_hwctx->video_device);
guid_list = av_malloc_array(guid_count, sizeof(*guid_list));
if (guid_list == NULL || guid_count == 0) {
av_log(avctx, AV_LOG_ERROR, "Failed to get the decoder GUIDs\n");
av_free(guid_list);
return AVERROR(EINVAL);
}
for (i = 0; i < guid_count; i++) {
hr = ID3D11VideoDevice_GetVideoDecoderProfile(device_hwctx->video_device, i, &guid_list[i]);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to retrieve decoder GUID %d\n", i);
av_free(guid_list);
return AVERROR(EINVAL);
}
}
ret = dxva_get_decoder_guid(avctx, device_hwctx->video_device, &surface_format,
guid_count, guid_list, &decoder_guid);
av_free(guid_list);
if (ret < 0)
return AVERROR(EINVAL);
desc.SampleWidth = avctx->coded_width;
desc.SampleHeight = avctx->coded_height;
desc.OutputFormat = surface_format;
desc.Guid = decoder_guid;
ret = d3d11va_get_decoder_configuration(avctx, device_hwctx->video_device, &desc, &config);
if (ret < 0)
return AVERROR(EINVAL);
sctx->d3d11_views = av_mallocz_array(texdesc.ArraySize, sizeof(sctx->d3d11_views[0]));
if (!sctx->d3d11_views)
return AVERROR(ENOMEM);
sctx->nb_d3d11_views = texdesc.ArraySize;
for (i = 0; i < sctx->nb_d3d11_views; i++) {
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC viewDesc = {
.DecodeProfile = decoder_guid,
.ViewDimension = D3D11_VDOV_DIMENSION_TEXTURE2D,
.Texture2D = {
.ArraySlice = i,
}
};
hr = ID3D11VideoDevice_CreateVideoDecoderOutputView(device_hwctx->video_device,
(ID3D11Resource*) frames_hwctx->texture,
&viewDesc,
(ID3D11VideoDecoderOutputView**) &sctx->d3d11_views[i]);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Could not create the decoder output view %d\n", i);
return AVERROR_UNKNOWN;
}
}
hr = ID3D11VideoDevice_CreateVideoDecoder(device_hwctx->video_device, &desc,
&config, &sctx->d3d11_decoder);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to create D3D11VA video decoder\n");
return AVERROR(EINVAL);
}
sctx->d3d11_config = config;
sctx->d3d11_texture = frames_hwctx->texture;
sctx->decoder_ref = bufref_wrap_interface((IUnknown *)sctx->d3d11_decoder);
if (!sctx->decoder_ref)
return AVERROR(ENOMEM);
return 0;
}
#endif
static void ff_dxva2_lock(AVCodecContext *avctx)
{
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx)) {
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
WaitForSingleObjectEx(D3D11VA_CONTEXT(ctx)->context_mutex, INFINITE, FALSE);
if (sctx->device_ctx) {
AVD3D11VADeviceContext *hwctx = sctx->device_ctx->hwctx;
hwctx->lock(hwctx->lock_ctx);
}
}
#endif
}
static void ff_dxva2_unlock(AVCodecContext *avctx)
{
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx)) {
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
if (sctx->device_ctx) {
AVD3D11VADeviceContext *hwctx = sctx->device_ctx->hwctx;
hwctx->unlock(hwctx->lock_ctx);
}
}
#endif
}
int ff_dxva2_common_frame_params(AVCodecContext *avctx,
AVBufferRef *hw_frames_ctx)
{
AVHWFramesContext *frames_ctx = (AVHWFramesContext *)hw_frames_ctx->data;
AVHWDeviceContext *device_ctx = frames_ctx->device_ctx;
int surface_alignment, num_surfaces;
if (device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
frames_ctx->format = AV_PIX_FMT_DXVA2_VLD;
} else if (device_ctx->type == AV_HWDEVICE_TYPE_D3D11VA) {
frames_ctx->format = AV_PIX_FMT_D3D11;
} else {
return AVERROR(EINVAL);
}
/* decoding MPEG-2 requires additional alignment on some Intel GPUs,
but it causes issues for H.264 on certain AMD GPUs..... */
if (avctx->codec_id == AV_CODEC_ID_MPEG2VIDEO)
surface_alignment = 32;
/* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
all coding features have enough room to work with */
else if (avctx->codec_id == AV_CODEC_ID_HEVC || avctx->codec_id == AV_CODEC_ID_AV1)
surface_alignment = 128;
else
surface_alignment = 16;
/* 1 base work surface */
num_surfaces = 1;
/* add surfaces based on number of possible refs */
if (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_HEVC)
num_surfaces += 16;
else if (avctx->codec_id == AV_CODEC_ID_VP9 || avctx->codec_id == AV_CODEC_ID_AV1)
num_surfaces += 8;
else
num_surfaces += 2;
frames_ctx->sw_format = avctx->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
AV_PIX_FMT_P010 : AV_PIX_FMT_NV12;
frames_ctx->width = FFALIGN(avctx->coded_width, surface_alignment);
frames_ctx->height = FFALIGN(avctx->coded_height, surface_alignment);
frames_ctx->initial_pool_size = num_surfaces;
#if CONFIG_DXVA2
if (frames_ctx->format == AV_PIX_FMT_DXVA2_VLD) {
AVDXVA2FramesContext *frames_hwctx = frames_ctx->hwctx;
frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
}
#endif
#if CONFIG_D3D11VA
if (frames_ctx->format == AV_PIX_FMT_D3D11) {
AVD3D11VAFramesContext *frames_hwctx = frames_ctx->hwctx;
frames_hwctx->BindFlags |= D3D11_BIND_DECODER;
}
#endif
return 0;
}
int ff_dxva2_decode_init(AVCodecContext *avctx)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
AVHWFramesContext *frames_ctx;
enum AVHWDeviceType dev_type = avctx->hwaccel->pix_fmt == AV_PIX_FMT_DXVA2_VLD
? AV_HWDEVICE_TYPE_DXVA2 : AV_HWDEVICE_TYPE_D3D11VA;
int ret = 0;
// Old API.
if (avctx->hwaccel_context)
return 0;
// (avctx->pix_fmt is not updated yet at this point)
sctx->pix_fmt = avctx->hwaccel->pix_fmt;
ret = ff_decode_get_hw_frames_ctx(avctx, dev_type);
if (ret < 0)
return ret;
frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
sctx->device_ctx = frames_ctx->device_ctx;
if (frames_ctx->format != sctx->pix_fmt) {
av_log(avctx, AV_LOG_ERROR, "Invalid pixfmt for hwaccel!\n");
ret = AVERROR(EINVAL);
goto fail;
}
#if CONFIG_D3D11VA
if (sctx->pix_fmt == AV_PIX_FMT_D3D11) {
AVD3D11VADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
AVD3D11VAContext *d3d11_ctx = &sctx->ctx.d3d11va;
ff_dxva2_lock(avctx);
ret = d3d11va_create_decoder(avctx);
ff_dxva2_unlock(avctx);
if (ret < 0)
goto fail;
d3d11_ctx->decoder = sctx->d3d11_decoder;
d3d11_ctx->video_context = device_hwctx->video_context;
d3d11_ctx->cfg = &sctx->d3d11_config;
d3d11_ctx->surface_count = sctx->nb_d3d11_views;
d3d11_ctx->surface = sctx->d3d11_views;
d3d11_ctx->workaround = sctx->workaround;
d3d11_ctx->context_mutex = INVALID_HANDLE_VALUE;
}
#endif
#if CONFIG_DXVA2
if (sctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
AVDXVA2FramesContext *frames_hwctx = frames_ctx->hwctx;
struct dxva_context *dxva_ctx = &sctx->ctx.dxva2;
ff_dxva2_lock(avctx);
ret = dxva2_create_decoder(avctx);
ff_dxva2_unlock(avctx);
if (ret < 0)
goto fail;
dxva_ctx->decoder = sctx->dxva2_decoder;
dxva_ctx->cfg = &sctx->dxva2_config;
dxva_ctx->surface = frames_hwctx->surfaces;
dxva_ctx->surface_count = frames_hwctx->nb_surfaces;
dxva_ctx->workaround = sctx->workaround;
}
#endif
return 0;
fail:
ff_dxva2_decode_uninit(avctx);
return ret;
}
int ff_dxva2_decode_uninit(AVCodecContext *avctx)
{
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
int i;
av_buffer_unref(&sctx->decoder_ref);
#if CONFIG_D3D11VA
for (i = 0; i < sctx->nb_d3d11_views; i++) {
if (sctx->d3d11_views[i])
ID3D11VideoDecoderOutputView_Release(sctx->d3d11_views[i]);
}
av_freep(&sctx->d3d11_views);
#endif
#if CONFIG_DXVA2
if (sctx->dxva2_service)
IDirectXVideoDecoderService_Release(sctx->dxva2_service);
#endif
return 0;
}
static void *get_surface(const AVCodecContext *avctx, const AVFrame *frame)
{
#if CONFIG_D3D11VA
if (frame->format == AV_PIX_FMT_D3D11) {
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
intptr_t index = (intptr_t)frame->data[1];
if (index < 0 || index >= sctx->nb_d3d11_views ||
sctx->d3d11_texture != (ID3D11Texture2D *)frame->data[0]) {
av_log((void *)avctx, AV_LOG_ERROR, "get_buffer frame is invalid!\n");
return NULL;
}
return sctx->d3d11_views[index];
}
#endif
return frame->data[3];
}
unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx,
const AVDXVAContext *ctx,
const AVFrame *frame)
{
void *surface = get_surface(avctx, frame);
unsigned i;
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11)
return (intptr_t)frame->data[1];
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC viewDesc;
ID3D11VideoDecoderOutputView_GetDesc((ID3D11VideoDecoderOutputView*) surface, &viewDesc);
return viewDesc.Texture2D.ArraySlice;
}
#endif
#if CONFIG_DXVA2
for (i = 0; i < DXVA_CONTEXT_COUNT(avctx, ctx); i++) {
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD && ctx->dxva2.surface[i] == surface)
return i;
}
#endif
assert(0);
return 0;
}
int ff_dxva2_commit_buffer(AVCodecContext *avctx,
AVDXVAContext *ctx,
DECODER_BUFFER_DESC *dsc,
unsigned type, const void *data, unsigned size,
unsigned mb_count)
{
void *dxva_data;
unsigned dxva_size;
int result;
HRESULT hr = 0;
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx))
hr = ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
D3D11VA_CONTEXT(ctx)->decoder,
type,
&dxva_size, &dxva_data);
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
hr = IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder, type,
&dxva_data, &dxva_size);
#endif
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to get a buffer for %u: 0x%x\n",
type, (unsigned)hr);
return -1;
}
if (size <= dxva_size) {
memcpy(dxva_data, data, size);
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx)) {
D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = dsc;
memset(dsc11, 0, sizeof(*dsc11));
dsc11->BufferType = type;
dsc11->DataSize = size;
dsc11->NumMBsInBuffer = mb_count;
}
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
DXVA2_DecodeBufferDesc *dsc2 = dsc;
memset(dsc2, 0, sizeof(*dsc2));
dsc2->CompressedBufferType = type;
dsc2->DataSize = size;
dsc2->NumMBsInBuffer = mb_count;
}
#endif
result = 0;
} else {
av_log(avctx, AV_LOG_ERROR, "Buffer for type %u was too small\n", type);
result = -1;
}
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx))
hr = ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type);
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
hr = IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type);
#endif
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR,
"Failed to release buffer type %u: 0x%x\n",
type, (unsigned)hr);
result = -1;
}
return result;
}
static int frame_add_buf(AVFrame *frame, AVBufferRef *ref)
{
int i;
for (i = 0; i < AV_NUM_DATA_POINTERS; i++) {
if (!frame->buf[i]) {
frame->buf[i] = av_buffer_ref(ref);
return frame->buf[i] ? 0 : AVERROR(ENOMEM);
}
}
// For now we expect that the caller does not use more than
// AV_NUM_DATA_POINTERS-1 buffers if the user uses a custom pool.
return AVERROR(EINVAL);
}
int ff_dxva2_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
const void *pp, unsigned pp_size,
const void *qm, unsigned qm_size,
int (*commit_bs_si)(AVCodecContext *,
DECODER_BUFFER_DESC *bs,
DECODER_BUFFER_DESC *slice))
{
AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
unsigned buffer_count = 0;
#if CONFIG_D3D11VA
D3D11_VIDEO_DECODER_BUFFER_DESC buffer11[4];
#endif
#if CONFIG_DXVA2
DXVA2_DecodeBufferDesc buffer2[4];
#endif
DECODER_BUFFER_DESC *buffer = NULL, *buffer_slice = NULL;
int result, runs = 0;
HRESULT hr;
unsigned type;
FFDXVASharedContext *sctx = DXVA_SHARED_CONTEXT(avctx);
if (sctx->decoder_ref) {
result = frame_add_buf(frame, sctx->decoder_ref);
if (result < 0)
return result;
}
do {
ff_dxva2_lock(avctx);
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx))
hr = ID3D11VideoContext_DecoderBeginFrame(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder,
get_surface(avctx, frame),
0, NULL);
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
hr = IDirectXVideoDecoder_BeginFrame(DXVA2_CONTEXT(ctx)->decoder,
get_surface(avctx, frame),
NULL);
#endif
if (hr != E_PENDING || ++runs > 50)
break;
ff_dxva2_unlock(avctx);
av_usleep(2000);
} while(1);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to begin frame: 0x%x\n", (unsigned)hr);
ff_dxva2_unlock(avctx);
return -1;
}
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx)) {
buffer = &buffer11[buffer_count];
type = D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS;
}
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
buffer = &buffer2[buffer_count];
type = DXVA2_PictureParametersBufferType;
}
#endif
result = ff_dxva2_commit_buffer(avctx, ctx, buffer,
type,
pp, pp_size, 0);
if (result) {
av_log(avctx, AV_LOG_ERROR,
"Failed to add picture parameter buffer\n");
goto end;
}
buffer_count++;
if (qm_size > 0) {
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx)) {
buffer = &buffer11[buffer_count];
type = D3D11_VIDEO_DECODER_BUFFER_INVERSE_QUANTIZATION_MATRIX;
}
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
buffer = &buffer2[buffer_count];
type = DXVA2_InverseQuantizationMatrixBufferType;
}
#endif
result = ff_dxva2_commit_buffer(avctx, ctx, buffer,
type,
qm, qm_size, 0);
if (result) {
av_log(avctx, AV_LOG_ERROR,
"Failed to add inverse quantization matrix buffer\n");
goto end;
}
buffer_count++;
}
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx)) {
buffer = &buffer11[buffer_count + 0];
buffer_slice = &buffer11[buffer_count + 1];
}
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
buffer = &buffer2[buffer_count + 0];
buffer_slice = &buffer2[buffer_count + 1];
}
#endif
result = commit_bs_si(avctx,
buffer,
buffer_slice);
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 == 1 + (qm_size > 0) + 2);
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx))
hr = ID3D11VideoContext_SubmitDecoderBuffers(D3D11VA_CONTEXT(ctx)->video_context,
D3D11VA_CONTEXT(ctx)->decoder,
buffer_count, buffer11);
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
DXVA2_DecodeExecuteParams exec = {
.NumCompBuffers = buffer_count,
.pCompressedBuffers = buffer2,
.pExtensionData = NULL,
};
hr = IDirectXVideoDecoder_Execute(DXVA2_CONTEXT(ctx)->decoder, &exec);
}
#endif
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to execute: 0x%x\n", (unsigned)hr);
result = -1;
}
end:
#if CONFIG_D3D11VA
if (ff_dxva2_is_d3d11(avctx))
hr = ID3D11VideoContext_DecoderEndFrame(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder);
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
hr = IDirectXVideoDecoder_EndFrame(DXVA2_CONTEXT(ctx)->decoder, NULL);
#endif
ff_dxva2_unlock(avctx);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to end frame: 0x%x\n", (unsigned)hr);
result = -1;
}
return result;
}
int ff_dxva2_is_d3d11(const AVCodecContext *avctx)
{
if (CONFIG_D3D11VA)
return avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD ||
avctx->pix_fmt == AV_PIX_FMT_D3D11;
else
return 0;
}
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