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/*
* (C) 2007-2012 see Authors.txt
*
* This file is part of MPC-HC.
*
* MPC-HC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* MPC-HC 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "stdafx.h"
#include "../../../DSUtil/DSUtil.h"
#include "DXVADecoderH264.h"
#include "MPCVideoDecFilter.h"
#include "VideoDecDXVAAllocator.h"
#include "ffmpeg/libavcodec/avcodec.h"
#include "FfmpegContext.h"
#if 0
#define TRACE_H264 TRACE
#else
#define TRACE_H264 __noop
#endif
CDXVADecoderH264::CDXVADecoderH264(CMPCVideoDecFilter* pFilter, IAMVideoAccelerator* pAMVideoAccelerator, DXVAMode nMode, int nPicEntryNumber)
: CDXVADecoder(pFilter, pAMVideoAccelerator, nMode, nPicEntryNumber)
{
m_bUseLongSlice = (GetDXVA1Config()->bConfigBitstreamRaw != 2);
Init();
}
CDXVADecoderH264::CDXVADecoderH264(CMPCVideoDecFilter* pFilter, IDirectXVideoDecoder* pDirectXVideoDec, DXVAMode nMode, int nPicEntryNumber, DXVA2_ConfigPictureDecode* pDXVA2Config)
: CDXVADecoder(pFilter, pDirectXVideoDec, nMode, nPicEntryNumber, pDXVA2Config)
{
m_bUseLongSlice = (m_pFilter->GetDXVA2Config()->ConfigBitstreamRaw != 2);
Init();
}
CDXVADecoderH264::~CDXVADecoderH264()
{
}
void CDXVADecoderH264::Init()
{
memset(&m_DXVAPicParams, 0, sizeof(m_DXVAPicParams));
memset(&m_DXVAPicParams, 0, sizeof(DXVA_PicParams_H264));
memset(&m_pSliceLong, 0, sizeof(DXVA_Slice_H264_Long) * MAX_SLICES);
memset(&m_pSliceShort, 0, sizeof(DXVA_Slice_H264_Short) * MAX_SLICES);
m_DXVAPicParams.MbsConsecutiveFlag = 1;
if (m_pFilter->GetPCIVendor() == PCIV_Intel) {
m_DXVAPicParams.Reserved16Bits = 0x534c;
} else {
m_DXVAPicParams.Reserved16Bits = 0;
}
m_DXVAPicParams.ContinuationFlag = 1;
m_DXVAPicParams.Reserved8BitsA = 0;
m_DXVAPicParams.Reserved8BitsB = 0;
m_DXVAPicParams.MinLumaBipredSize8x8Flag = 1; // Improve accelerator performances
m_DXVAPicParams.StatusReportFeedbackNumber = 0; // Use to report status
for (int i = 0; i < 16; i++) {
m_DXVAPicParams.RefFrameList[i].AssociatedFlag = 1;
m_DXVAPicParams.RefFrameList[i].bPicEntry = 255;
m_DXVAPicParams.RefFrameList[i].Index7Bits = 127;
}
m_nNALLength = 4;
m_nMaxSlices = 0;
switch (GetMode()) {
case H264_VLD:
AllocExecuteParams(3);
break;
default:
ASSERT(FALSE);
}
}
void CDXVADecoderH264::CopyBitstream(BYTE* pDXVABuffer, BYTE* pBuffer, UINT& nSize)
{
CH264Nalu Nalu;
int nDummy;
int nSlices = 0;
UINT m_nSize = nSize;
int slice_step = 1;
int nDxvaNalLength;
while (!nSlices && slice_step <= 2) {
Nalu.SetBuffer(pBuffer, m_nSize, slice_step == 1 ? m_nNALLength : 0);
nSize = 0;
while (Nalu.ReadNext()) {
switch (Nalu.GetType()) {
case NALU_TYPE_SLICE:
case NALU_TYPE_IDR:
// Skip the NALU if the data length is below 0
if (Nalu.GetDataLength() < 0) {
break;
}
// For AVC1, put startcode 0x000001
pDXVABuffer[0] = pDXVABuffer[1] = 0;
pDXVABuffer[2] = 1;
// Copy NALU
__try {
memcpy(pDXVABuffer + 3, Nalu.GetDataBuffer(), Nalu.GetDataLength());
} __except (EXCEPTION_EXECUTE_HANDLER) {
break;
}
// Update slice control buffer
nDxvaNalLength = (int)Nalu.GetDataLength() + 3;
m_pSliceShort[nSlices].BSNALunitDataLocation = nSize;
m_pSliceShort[nSlices].SliceBytesInBuffer = nDxvaNalLength;
nSize += nDxvaNalLength;
pDXVABuffer += nDxvaNalLength;
nSlices++;
break;
}
}
slice_step++;
}
// Complete with zero padding (buffer size should be a multiple of 128)
nDummy = 128 - (nSize % 128);
memset(pDXVABuffer, 0, nDummy);
m_pSliceShort[nSlices - 1].SliceBytesInBuffer += nDummy;
nSize += nDummy;
}
void CDXVADecoderH264::Flush()
{
ClearRefFramesList();
m_DXVAPicParams.UsedForReferenceFlags = 0;
m_nOutPOC = INT_MIN;
m_nPrevOutPOC = INT_MIN;
m_nfield_pic_flag = 1;
m_nRefPicFlag = 1;
m_nBrokenFramesFlag = 0;
m_nBrokenFramesFlag_POC = 0;
__super::Flush();
}
HRESULT CDXVADecoderH264::DecodeFrame(BYTE* pDataIn, UINT nSize, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop)
{
HRESULT hr = S_FALSE;
UINT nSlices = 0;
int nSurfaceIndex = -1;
int nFieldType = -1;
int nSliceType = -1;
int nFramePOC = INT_MIN;
int nOutPOC = INT_MIN;
REFERENCE_TIME rtOutStart = _I64_MIN;
CH264Nalu Nalu;
UINT nNalOffset = 0;
CComPtr<IMediaSample> pSampleToDeliver;
CComQIPtr<IMPCDXVA2Sample> pDXVA2Sample;
int slice_step = 1;
if (FFH264DecodeBuffer(m_pFilter->GetAVCtx(), pDataIn, nSize, &nFramePOC, &nOutPOC, &rtOutStart) == -1) {
return S_FALSE;
}
while (!nSlices && slice_step <= 2) {
Nalu.SetBuffer(pDataIn, nSize, slice_step == 1 ? m_nNALLength : 0);
while (Nalu.ReadNext()) {
switch (Nalu.GetType()) {
case NALU_TYPE_SLICE:
case NALU_TYPE_IDR:
if (m_bUseLongSlice) {
m_pSliceLong[nSlices].BSNALunitDataLocation = nNalOffset;
m_pSliceLong[nSlices].SliceBytesInBuffer = (UINT)Nalu.GetDataLength() + 3; //.GetRoundedDataLength();
m_pSliceLong[nSlices].slice_id = nSlices;
FF264UpdateRefFrameSliceLong(&m_DXVAPicParams, &m_pSliceLong[nSlices], m_pFilter->GetAVCtx());
if (nSlices > 0) {
m_pSliceLong[nSlices - 1].NumMbsForSlice = m_pSliceLong[nSlices].NumMbsForSlice = m_pSliceLong[nSlices].first_mb_in_slice - m_pSliceLong[nSlices - 1].first_mb_in_slice;
}
}
nSlices++;
nNalOffset += (UINT)(Nalu.GetDataLength() + 3);
if (nSlices > MAX_SLICES) {
break;
}
break;
}
}
slice_step++;
}
if (!nSlices) {
return S_FALSE;
}
m_nMaxWaiting = min(max(m_DXVAPicParams.num_ref_frames, 3), 8);
// If parsing fail (probably no PPS/SPS), continue anyway it may arrived later (happen on truncated streams)
if (FAILED(FFH264BuildPicParams(&m_DXVAPicParams, &m_DXVAScalingMatrix, &nFieldType, &nSliceType, m_pFilter->GetAVCtx(), m_pFilter->GetPCIVendor()))) {
return S_FALSE;
}
TRACE_H264("CDXVADecoderH264::DecodeFrame() : nFramePOC = %11d, nOutPOC = %11d[%11d], [%d - %d], rtOutStart = [%20I64d]\n", nFramePOC, nOutPOC, m_nOutPOC, m_DXVAPicParams.field_pic_flag, m_DXVAPicParams.RefPicFlag, rtOutStart);
// Wait I frame after a flush
if (m_bFlushed && !m_DXVAPicParams.IntraPicFlag) {
TRACE_H264("CDXVADecoderH264::DecodeFrame() : Flush - wait I frame\n");
m_nBrokenFramesFlag = 0;
m_nBrokenFramesFlag_POC = 0;
m_nfield_pic_flag = m_DXVAPicParams.field_pic_flag;
m_nRefPicFlag = m_DXVAPicParams.RefPicFlag;
m_nPrevOutPOC = INT_MIN;
return S_FALSE;
}
/* Disabled, because that causes serious problems.
// Some magic code for detecting the incorrect decoding of interlaced frames ...
// TODO : necessary to make it better, and preferably on the side of ffmpeg ...
if (m_nfield_pic_flag && m_nfield_pic_flag == m_DXVAPicParams.field_pic_flag && m_nRefPicFlag == m_DXVAPicParams.RefPicFlag) {
if (m_nPrevOutPOC == m_nOutPOC && m_nOutPOC == INT_MIN) {
m_nBrokenFramesFlag_POC++;
}
m_nBrokenFramesFlag++;
} else {
m_nBrokenFramesFlag = 0;
m_nBrokenFramesFlag_POC = 0;
}
m_nfield_pic_flag = m_DXVAPicParams.field_pic_flag;
m_nRefPicFlag = m_DXVAPicParams.RefPicFlag;
m_nPrevOutPOC = m_nOutPOC;
if (m_nBrokenFramesFlag > 4) {
m_nBrokenFramesFlag = 0;
if (m_nBrokenFramesFlag_POC > 1) {
TRACE_H264("CDXVADecoderH264::DecodeFrame() : Detected broken frames ... flush data\n");
m_nBrokenFramesFlag_POC = 0;
Flush();
return S_FALSE;
}
}
//
*/
CHECK_HR_TRACE(GetFreeSurfaceIndex(nSurfaceIndex, &pSampleToDeliver, rtStart, rtStop));
FFH264SetCurrentPicture(nSurfaceIndex, &m_DXVAPicParams, m_pFilter->GetAVCtx());
CHECK_HR_TRACE(BeginFrame(nSurfaceIndex, pSampleToDeliver));
m_DXVAPicParams.StatusReportFeedbackNumber++;
// Send picture parameters
CHECK_HR_TRACE(AddExecuteBuffer(DXVA2_PictureParametersBufferType, sizeof(m_DXVAPicParams), &m_DXVAPicParams));
CHECK_HR_TRACE(Execute());
// Add bitstream, slice control and quantization matrix
CHECK_HR_TRACE(AddExecuteBuffer(DXVA2_BitStreamDateBufferType, nSize, pDataIn, &nSize));
if (m_bUseLongSlice) {
CHECK_HR_TRACE(AddExecuteBuffer(DXVA2_SliceControlBufferType, sizeof(DXVA_Slice_H264_Long)*nSlices, m_pSliceLong));
} else {
CHECK_HR_TRACE(AddExecuteBuffer(DXVA2_SliceControlBufferType, sizeof(DXVA_Slice_H264_Short)*nSlices, m_pSliceShort));
}
CHECK_HR_TRACE(AddExecuteBuffer(DXVA2_InverseQuantizationMatrixBufferType, sizeof(DXVA_Qmatrix_H264), (void*)&m_DXVAScalingMatrix));
// Decode bitstream
CHECK_HR_TRACE(Execute());
CHECK_HR_TRACE(EndFrame(nSurfaceIndex));
#if defined(_DEBUG) && 0
DisplayStatus();
#endif
bool bAdded = AddToStore(nSurfaceIndex, pSampleToDeliver, m_DXVAPicParams.RefPicFlag, rtStart, rtStop,
m_DXVAPicParams.field_pic_flag, (FF_FIELD_TYPE)nFieldType,
(FF_SLICE_TYPE)nSliceType, nFramePOC);
FFH264UpdateRefFramesList(&m_DXVAPicParams, m_pFilter->GetAVCtx());
ClearUnusedRefFrames();
if (bAdded) {
hr = DisplayNextFrame();
}
if (nOutPOC != INT_MIN) {
m_nOutPOC = nOutPOC;
m_rtOutStart = rtOutStart;
}
m_bFlushed = false;
return hr;
}
void CDXVADecoderH264::RemoveUndisplayedFrame(int nPOC)
{
// Find frame with given POC, and free the slot
for (int i = 0; i < m_nPicEntryNumber; i++) {
if (m_pPictureStore[i].bInUse && m_pPictureStore[i].nCodecSpecific == nPOC) {
m_pPictureStore[i].bDisplayed = true;
RemoveRefFrame(i);
return;
}
}
}
void CDXVADecoderH264::ClearUnusedRefFrames()
{
// Remove old reference frames (not anymore a short or long ref frame)
for (int i = 0; i < m_nPicEntryNumber; i++) {
if (m_pPictureStore[i].bRefPicture && m_pPictureStore[i].bDisplayed) {
if (!FFH264IsRefFrameInUse(i, m_pFilter->GetAVCtx())) {
RemoveRefFrame(i);
}
}
}
}
void CDXVADecoderH264::SetExtraData(BYTE* pDataIn, UINT nSize)
{
AVCodecContext* pAVCtx = m_pFilter->GetAVCtx();
m_nNALLength = pAVCtx->nal_length_size;
FFH264DecodeBuffer(pAVCtx, pDataIn, nSize, NULL, NULL, NULL);
FFH264SetDxvaSliceLong(pAVCtx, m_pSliceLong);
}
void CDXVADecoderH264::ClearRefFramesList()
{
for (int i = 0; i < m_nPicEntryNumber; i++) {
if (m_pPictureStore[i].bInUse) {
m_pPictureStore[i].bDisplayed = true;
RemoveRefFrame(i);
}
}
}
HRESULT CDXVADecoderH264::DisplayStatus()
{
HRESULT hr = E_INVALIDARG;
DXVA_Status_H264 Status;
memset(&Status, 0, sizeof(Status));
CHECK_HR_TRACE(CDXVADecoder::QueryStatus(&Status, sizeof(Status)));
TRACE_H264("CDXVADecoderH264::DisplayStatus() : Status for the frame %u : bBufType = %u, bStatus = %u, wNumMbsAffected = %u\n",
Status.StatusReportFeedbackNumber,
Status.bBufType,
Status.bStatus,
Status.wNumMbsAffected);
return hr;
}
int CDXVADecoderH264::FindOldestFrame()
{
int nPos = -1;
REFERENCE_TIME rtPos = _I64_MAX;
for (int i = 0; i < m_nPicEntryNumber; i++) {
if (m_pPictureStore[i].bInUse && !m_pPictureStore[i].bDisplayed) {
if ((m_pPictureStore[i].nCodecSpecific == m_nOutPOC) && (m_pPictureStore[i].rtStart < rtPos) && (m_pPictureStore[i].rtStart >= m_rtOutStart)) {
nPos = i;
rtPos = m_pPictureStore[i].rtStart;
}
}
}
if (nPos != -1) {
m_pPictureStore[nPos].rtStart = m_rtOutStart;
m_pFilter->UpdateFrameTime(m_pPictureStore[nPos].rtStart, m_pPictureStore[nPos].rtStop);
m_pFilter->ReorderBFrames(m_pPictureStore[nPos].rtStart, m_pPictureStore[nPos].rtStop);
}
return nPos;
}
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