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fix crash caused by empty packets and add more checks

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This commit is contained in:
Licai Guo 2014-01-16 22:13:03 -08:00
parent 306a1daa14
commit 1a04694d97
3 changed files with 4 additions and 3 deletions
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3
codec/decoder/core/src/au_parser.cpp
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@ -479,7 +479,8 @@ int32_t ParseNonVclNal (PWelsDecoderContext pCtx, uint8_t* pRbsp, const int32_t
int32_t iPicHeight = 0;
int32_t iBitSize = 0;
int32_t iErr = ERR_NONE;
if (kiSrcLen <= 0)
return iErr;
pBs = &pCtx->sBs; // SBitStringAux instance for non VCL NALs decoding
iBitSize = (kiSrcLen << 3) - BsGetTrailingBits (pRbsp + kiSrcLen - 1); // convert into bit
eNalType = pCtx->sCurNalHead.eNalUnitType;

2
codec/decoder/core/src/decode_slice.cpp
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@ -403,7 +403,7 @@ int32_t WelsDecodeSlice (PWelsDecoderContext pCtx, bool_t bFirstSliceInLayer, PN
iNextMbXyIndex = pSliceHeader->iFirstMbInSlice;
if (iNextMbXyIndex >= kiCountNumMb) {
if (iNextMbXyIndex < 0 || iNextMbXyIndex >= kiCountNumMb) {
WelsLog (pCtx, WELS_LOG_ERROR,
"WelsDecodeSlice()::iFirstMbInSlice(%d) > pSps->kiTotalMb(%d). ERROR!!! resolution change....\n",
iNextMbXyIndex, kiCountNumMb);

2
codec/decoder/core/src/decoder.cpp
View File

@ -690,7 +690,7 @@ int32_t SyncPictureResolutionExt (PWelsDecoderContext pCtx, const int32_t kiMbWi
*/
void_t UpdateMaxPictureResolution (PWelsDecoderContext pCtx, const int32_t kiCurWidth, const int32_t kiCurHeight) {
//any dimension larger than that of current dimension, should modify the max-dimension
if (kiCurWidth > pCtx->iMaxWidthInSps || kiCurHeight > pCtx->iMaxHeightInSps) {
if (kiCurWidth * kiCurHeight > pCtx->iMaxWidthInSps * pCtx->iMaxHeightInSps) {
pCtx->iMaxWidthInSps = kiCurWidth;
pCtx->iMaxHeightInSps = kiCurHeight;
}