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FFmpeg/libavcodec/dxva2.c
Steve Lhomme be630b1e08 d3d11va: Use the proper decoding slice index 
The decoding buffer index expected by D3D11VA is the one from the
ID3D11Texture2D not the one from the ID3D11VideoDecoderOutputView array
in AVD3D11VAContext.

Otherwise, when providing decoder slices that do not start from 0,
pictures appear in bogus order. For an invalid index crashes and
image corruption can occur.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
2016-10-05 18:37:27 +02:00

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/*
* DXVA2 HW acceleration.
*
* copyright (c) 2010 Laurent Aimar
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; 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 "libavutil/log.h"
#include "libavutil/time.h"
#include "avcodec.h"
#include "dxva2_internal.h"
void *ff_dxva2_get_surface(const AVFrame *frame)
{
return frame->data[3];
}
unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx,
const AVDXVAContext *ctx,
const AVFrame *frame)
{
void *surface = ff_dxva2_get_surface(frame);
unsigned i;
for (i = 0; i < DXVA_CONTEXT_COUNT(avctx, ctx); i++)
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD && ctx->d3d11va.surface[i] == surface) {
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC viewDesc;
ID3D11VideoDecoderOutputView_GetDesc(ctx->d3d11va.surface[i], &viewDesc);
return viewDesc.Texture2D.ArraySlice;
}
#endif
#if CONFIG_DXVA2
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;
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
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%lx\n",
type, hr);
return -1;
}
if (size <= dxva_size) {
memcpy(dxva_data, data, size);
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
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 (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
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%lx\n",
type, hr);
result = -1;
}
return result;
}
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 = avctx->hwaccel_context;
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,*buffer_slice;
int result, runs = 0;
HRESULT hr;
unsigned type;
do {
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
WaitForSingleObjectEx(D3D11VA_CONTEXT(ctx)->context_mutex, INFINITE, FALSE);
hr = ID3D11VideoContext_DecoderBeginFrame(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder,
ff_dxva2_get_surface(frame),
0, NULL);
}
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
hr = IDirectXVideoDecoder_BeginFrame(DXVA2_CONTEXT(ctx)->decoder,
ff_dxva2_get_surface(frame),
NULL);
#endif
if (hr != E_PENDING || ++runs > 50)
break;
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
#endif
av_usleep(2000);
} while(1);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to begin frame: 0x%lx\n", hr);
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
#endif
return -1;
}
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
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 (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
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 (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
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 (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
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%lx\n", hr);
result = -1;
}
end:
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
hr = ID3D11VideoContext_DecoderEndFrame(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder);
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
}
#endif
#if CONFIG_DXVA2
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
hr = IDirectXVideoDecoder_EndFrame(DXVA2_CONTEXT(ctx)->decoder, NULL);
#endif
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to end frame: 0x%lx\n", hr);
result = -1;
}
return result;
}
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