diff options
Diffstat (limited to 'libMpegTPDec/src/tpdec_asc.cpp')
| -rw-r--r-- | libMpegTPDec/src/tpdec_asc.cpp | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/libMpegTPDec/src/tpdec_asc.cpp b/libMpegTPDec/src/tpdec_asc.cpp index 28bc22d..ad13378 100644 --- a/libMpegTPDec/src/tpdec_asc.cpp +++ b/libMpegTPDec/src/tpdec_asc.cpp @@ -1,7 +1,7 @@ /* ----------------------------------------------------------------------------- Software License for The Fraunhofer FDK AAC Codec Library for Android -© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten +© Copyright 1995 - 2019 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. All rights reserved. 1. INTRODUCTION @@ -1440,7 +1440,8 @@ static TRANSPORTDEC_ERROR EldSpecificConfig_Parse(CSAudioSpecificConfig *asc, UCHAR tmpDownscaleFreqIdx; esc->m_downscaledSamplingFrequency = getSampleRate(hBs, &tmpDownscaleFreqIdx, 4); - if (esc->m_downscaledSamplingFrequency == 0) { + if (esc->m_downscaledSamplingFrequency == 0 || + esc->m_downscaledSamplingFrequency > 96000) { return TRANSPORTDEC_PARSE_ERROR; } downscale_fill_nibble = FDKreadBits(hBs, 4); @@ -1948,6 +1949,9 @@ static TRANSPORTDEC_ERROR UsacConfig_Parse(CSAudioSpecificConfig *asc, INT nbits = (INT)FDKgetValidBits(hBs); usacSamplingFrequency = getSampleRate(hBs, &asc->m_samplingFrequencyIndex, 5); + if (usacSamplingFrequency == 0 || usacSamplingFrequency > 96000) { + return TRANSPORTDEC_PARSE_ERROR; + } asc->m_samplingFrequency = (UINT)usacSamplingFrequency; coreSbrFrameLengthIndex = FDKreadBits(hBs, 3); @@ -2027,7 +2031,8 @@ static TRANSPORTDEC_ERROR AudioSpecificConfig_ExtensionParse( self->m_extensionSamplingFrequency = getSampleRate( bs, &self->m_extensionSamplingFrequencyIndex, 4); - if ((INT)self->m_extensionSamplingFrequency <= 0) { + if (self->m_extensionSamplingFrequency == 0 || + self->m_extensionSamplingFrequency > 96000) { return TRANSPORTDEC_PARSE_ERROR; } } @@ -2139,6 +2144,24 @@ TRANSPORTDEC_ERROR AudioSpecificConfig_Parse( self->m_channelConfiguration = FDKreadBits(bs, 4); + /* MPEG-04 standard ISO/IEC 14496-3: channelConfiguration == 0 is reserved + in er_raw_data_block (table 4.19) and er_raw_data_block_eld (table 4.75) + MPEG-04 conformance ISO/IEC 14496-4: channelConfiguration == 0 is not + permitted for AOT_ER_AAC_LC, AOT_ER_AAC_LTP, AOT_ER_AAC_LD, + AOT_ER_AAC_SCAL (chapter 6.6.4.1.2.1.1) */ + if ((self->m_channelConfiguration == 0) && + ((self->m_aot == AOT_ER_AAC_LC) || (self->m_aot == AOT_ER_AAC_LTP) || + (self->m_aot == AOT_ER_AAC_LD) || (self->m_aot == AOT_ER_AAC_SCAL) || + (self->m_aot == AOT_ER_AAC_ELD))) { + return TRANSPORTDEC_UNSUPPORTED_FORMAT; + } + /* MPEG-04 conformance ISO/IEC 14496-4: channelConfiguration > 2 is not + * permitted for AOT_AAC_SCAL and AOT_ER_AAC_SCAL (chapter 6.6.4.1.2.1.1) */ + if ((self->m_channelConfiguration > 2) && + ((self->m_aot == AOT_AAC_SCAL) || (self->m_aot == AOT_ER_AAC_SCAL))) { + return TRANSPORTDEC_UNSUPPORTED_FORMAT; + } + /* SBR extension ( explicit non-backwards compatible mode ) */ self->m_sbrPresentFlag = 0; self->m_psPresentFlag = 0; @@ -2153,6 +2176,10 @@ TRANSPORTDEC_ERROR AudioSpecificConfig_Parse( self->m_extensionSamplingFrequency = getSampleRate(bs, &self->m_extensionSamplingFrequencyIndex, 4); + if (self->m_extensionSamplingFrequency == 0 || + self->m_extensionSamplingFrequency > 96000) { + return TRANSPORTDEC_PARSE_ERROR; + } self->m_aot = getAOT(bs); switch (self->m_aot) { |