add a check to parseSliceHeaderSyntaxes

Licai Guo committed 12 years ago

Commit a9fd78f1 parent d6e14c11 file · +3 −0Browse files

Showing the changes to codec/decoder/core/src/decoder_core.cpp (1 of 1 file). Show all

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codec/decoder/core/src/decoder_core.cpp+3−0

@@ -473,6 +473,7 @@ int32_t CheckSpsId (PWelsDecoderContext pCtx, PSubsetSps* ppSubsetSps, PSps* ppS · 472 unmodified lines
473	473	#define SLICE_HEADER_ALPHAC0_BETA_OFFSET_MAX 12
474	474	#define SLICE_HEADER_INTER_LAYER_ALPHAC0_BETA_OFFSET_MIN -12
475	475	#define SLICE_HEADER_INTER_LAYER_ALPHAC0_BETA_OFFSET_MAX 12
	476	+#define MAX_NUM_REF_IDX_L0_ACTIVE_MINUS1 15
476	477	/*
477	478	* decode_slice_header_avc
478	479	* Parse slice header of bitstream in avc for storing data structure
@@ -673,6 +674,8 @@ int32_t ParseSliceHeaderSyntaxs (PWelsDecoderContext pCtx, PBitStringAux pBs, co · 194 unmodified lines
673	674	pSliceHead->bNumRefIdxActiveOverrideFlag = !!uiCode;
674	675	if (pSliceHead->bNumRefIdxActiveOverrideFlag) {
675	676	WELS_READ_VERIFY (BsGetUe (pBs, &uiCode)); //num_ref_idx_l0_active_minus1
	677	+ WELS_CHECK_SE_UPPER_ERROR (uiCode, MAX_NUM_REF_IDX_L0_ACTIVE_MINUS1, "num_ref_idx_l0_active_minus1",
	678	+ GENERATE_ERROR_NO (ERR_LEVEL_SLICE_HEADER, ERR_INFO_INVALID_NUM_REF_IDX_L0_ACTIVE_MINUS1));
676	679	pSliceHead->uiRefCount[0] = 1 + uiCode;
677	680	}
678	681	}