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fix bNewSeqBegin logic

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This commit is contained in:
Licai Guo
2014-04-23 18:50:11 -07:00
parent f00d3ac15f
commit bada2d35bf
5 changed files with 11 additions and 4 deletions
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2
codec/decoder/core/inc/au_parser.h
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@@ -92,7 +92,7 @@ int32_t ParseRefBasePicMarking (PBitStringAux pBs, PRefBasePicMarking pRefBasePi
int32_t ParsePrefixNalUnit (PWelsDecoderContext pCtx, PBitStringAux pBs);
bool CheckAccessUnitBoundary (const PWelsDecoderContext pCtx, const PNalUnit kpCurNal, const PNalUnit kpLastNal, const PSps kpSps);
bool CheckAccessUnitBoundary (PWelsDecoderContext pCtx, const PNalUnit kpCurNal, const PNalUnit kpLastNal, const PSps kpSps);
bool CheckAccessUnitBoundaryExt (PNalUnitHeaderExt pLastNalHdrExt, PNalUnitHeaderExt pCurNalHeaderExt,
PSliceHeader pLastSliceHeader, PSliceHeader pCurSliceHeader);
/*!

1
codec/decoder/core/inc/decoder_context.h
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@@ -286,6 +286,7 @@ typedef struct TagWelsDecoderContext {
uint16_t uiCurIdrPicId;
#endif
bool bNewSeqBegin;
bool bNextNewSeqBegin;
int iOverwriteFlags;
int32_t iErrorConMethod; //
PPicture pPreviousDecodedPictureInDpb; //pointer to previously decoded picture in DPB for error concealment

3
codec/decoder/core/src/au_parser.cpp
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@@ -392,7 +392,7 @@ bool CheckAccessUnitBoundaryExt (PNalUnitHeaderExt pLastNalHdrExt, PNalUnitHeade
}
bool CheckAccessUnitBoundary (const PWelsDecoderContext pCtx, const PNalUnit kpCurNal, const PNalUnit kpLastNal, const PSps kpSps) {
bool CheckAccessUnitBoundary (PWelsDecoderContext pCtx, const PNalUnit kpCurNal, const PNalUnit kpLastNal, const PSps kpSps) {
const PNalUnitHeaderExt kpLastNalHeaderExt = &kpLastNal->sNalHeaderExt;
const PNalUnitHeaderExt kpCurNalHeaderExt = &kpCurNal->sNalHeaderExt;
const SSliceHeader* kpLastSliceHeader = &kpLastNal->sNalData.sVclNal.sSliceHeaderExt.sSliceHeader;
@@ -405,6 +405,7 @@ bool CheckAccessUnitBoundary (const PWelsDecoderContext pCtx, const PNalUnit kpC
if (kpLastSliceHeader->iFrameNum != kpCurSliceHeader->iFrameNum)
return true;
if (pCtx->pActiveLayerSps[kpCurNalHeaderExt->uiDependencyId] != NULL && pCtx->pActiveLayerSps[kpCurNalHeaderExt->uiDependencyId] != kpSps) {
pCtx->bNextNewSeqBegin = true;
return true; // the active sps changed, new sequence begins, so the current au is ready
}
// Subclause 7.4.1.2.5

1
codec/decoder/core/src/decoder.cpp
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@@ -295,6 +295,7 @@ void WelsOpenDecoder (PWelsDecoderContext pCtx) {
#else
pCtx->bReferenceLostAtT0Flag = true; // should be true to waiting IDR at incoming AU bits following, 6/4/2010
#endif //LONG_TERM_REF
pCtx->bNewSeqBegin = true;
}
/*!

8
codec/decoder/core/src/decoder_core.cpp
View File

@@ -1534,7 +1534,6 @@ static bool CheckNewSeqBeginAndUpdateActiveLayerSps(PWelsDecoderContext pCtx) {
static void WriteBackActiveParameters(PWelsDecoderContext pCtx) {
if (pCtx->iOverwriteFlags & OVERWRITE_PPS) {
memcpy(&pCtx->sPpsBuffer[pCtx->sPpsBuffer[MAX_PPS_COUNT].iPpsId], &pCtx->sPpsBuffer[MAX_PPS_COUNT], sizeof(SPps));
pCtx->bNewSeqBegin = true;
}
if (pCtx->iOverwriteFlags & OVERWRITE_SPS) {
memcpy(&pCtx->sSpsBuffer[pCtx->sSpsBuffer[MAX_SPS_COUNT].iSpsId], &pCtx->sSpsBuffer[MAX_SPS_COUNT], sizeof(SSps));
@@ -1542,6 +1541,7 @@ static void WriteBackActiveParameters(PWelsDecoderContext pCtx) {
}
if (pCtx->iOverwriteFlags & OVERWRITE_SUBSETSPS) {
memcpy(&pCtx->sSubsetSpsBuffer[pCtx->sSubsetSpsBuffer[MAX_SPS_COUNT].sSps.iSpsId], &pCtx->sSubsetSpsBuffer[MAX_SPS_COUNT], sizeof(SSubsetSps));
pCtx->bNewSeqBegin = true;
}
pCtx->iOverwriteFlags = OVERWRITE_NONE;
}
@@ -1567,7 +1567,7 @@ int32_t ConstructAccessUnit (PWelsDecoderContext pCtx, uint8_t** ppDst, SBufferI
pCtx->bAuReadyFlag = false;
pCtx->bLastHasMmco5 = false;
bool bTmpNewSeqBegin = CheckNewSeqBeginAndUpdateActiveLayerSps(pCtx);
pCtx->bNewSeqBegin = pCtx->bNewSeqBegin && bTmpNewSeqBegin;
pCtx->bNewSeqBegin = pCtx->bNewSeqBegin || bTmpNewSeqBegin;
iErr = WelsDecodeAccessUnitStart (pCtx);
GetVclNalTemporalId (pCtx);
@@ -1599,6 +1599,10 @@ int32_t ConstructAccessUnit (PWelsDecoderContext pCtx, uint8_t** ppDst, SBufferI
WelsDecodeAccessUnitEnd (pCtx);
pCtx->bNewSeqBegin = false;
WriteBackActiveParameters(pCtx);
pCtx->bNewSeqBegin = pCtx->bNewSeqBegin || pCtx->bNextNewSeqBegin;
pCtx->bNextNewSeqBegin = false; // reset it
if (pCtx->bNewSeqBegin)
ResetActiveSPSForEachLayer(pCtx);
if (ERR_NONE != iErr) {
WelsLog (pCtx, WELS_LOG_INFO, "returned error from decoding:[0x%x]\n", iErr);
return iErr;