aboutsummaryrefslogtreecommitdiffstats
path: root/libMpegTPDec/src
diff options
context:
space:
mode:
Diffstat (limited to 'libMpegTPDec/src')
-rw-r--r--libMpegTPDec/src/tpdec_adts.cpp48
-rw-r--r--libMpegTPDec/src/tpdec_asc.cpp45
-rw-r--r--libMpegTPDec/src/tpdec_latm.cpp6
-rw-r--r--libMpegTPDec/src/tpdec_lib.cpp41
4 files changed, 114 insertions, 26 deletions
diff --git a/libMpegTPDec/src/tpdec_adts.cpp b/libMpegTPDec/src/tpdec_adts.cpp
index 1a4e3fd..f936634 100644
--- a/libMpegTPDec/src/tpdec_adts.cpp
+++ b/libMpegTPDec/src/tpdec_adts.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 - 2020 Fraunhofer-Gesellschaft zur Förderung der angewandten
Forschung e.V. All rights reserved.
1. INTRODUCTION
@@ -213,8 +213,8 @@ TRANSPORTDEC_ERROR adtsRead_DecodeHeader(HANDLE_ADTS pAdts,
goto bail;
}
+ FDKcrcReset(&pAdts->crcInfo);
if (!bs.protection_absent) {
- FDKcrcReset(&pAdts->crcInfo);
FDKpushBack(hBs, 56); /* complete fixed and variable header! */
crcReg = FDKcrcStartReg(&pAdts->crcInfo, hBs, 0);
FDKpushFor(hBs, 56);
@@ -314,15 +314,55 @@ TRANSPORTDEC_ERROR adtsRead_DecodeHeader(HANDLE_ADTS pAdts,
if (bs.channel_config == 0) {
int pceBits = 0;
UINT alignAnchor = FDKgetValidBits(hBs);
+ CProgramConfig tmpPce;
if (FDKreadBits(hBs, 3) == ID_PCE) {
/* Got luck! Parse the PCE */
crcReg = adtsRead_CrcStartReg(pAdts, hBs, 0);
- CProgramConfig_Read(&pAsc->m_progrConfigElement, hBs, alignAnchor);
+ CProgramConfig_Init(&tmpPce);
+ CProgramConfig_Read(&tmpPce, hBs, alignAnchor);
+
+ if (CProgramConfig_IsValid(&tmpPce)) {
+ if (CProgramConfig_IsValid(&oldPce)) {
+ /* Compare the new and the old PCE (tags ignored) */
+ switch (CProgramConfig_Compare(&tmpPce, &oldPce)) {
+ case 0: /* Nothing to do because PCE matches the old one exactly. */
+ case 1: /* Channel configuration not changed. Just new metadata. */
+ FDKmemcpy(&pAsc->m_progrConfigElement, &tmpPce,
+ sizeof(CProgramConfig));
+ break;
+ case 2: /* The number of channels are identical but not the config
+ */
+ case -1: /* The channel configuration is completely different */
+ default:
+ FDKmemcpy(&pAsc->m_progrConfigElement, &oldPce,
+ sizeof(CProgramConfig));
+ FDKpushBack(hBs, adtsHeaderLength);
+ return TRANSPORTDEC_PARSE_ERROR;
+ }
+ } else {
+ FDKmemcpy(&pAsc->m_progrConfigElement, &tmpPce,
+ sizeof(CProgramConfig));
+ }
+ } else {
+ if (CProgramConfig_IsValid(&oldPce)) {
+ FDKmemcpy(&pAsc->m_progrConfigElement, &oldPce,
+ sizeof(CProgramConfig));
+ } else {
+ FDKpushBack(hBs, adtsHeaderLength);
+ return TRANSPORTDEC_PARSE_ERROR;
+ }
+ }
adtsRead_CrcEndReg(pAdts, hBs, crcReg);
- pceBits = alignAnchor - FDKgetValidBits(hBs);
+ pceBits = (INT)alignAnchor - (INT)FDKgetValidBits(hBs);
+ adtsHeaderLength += pceBits;
+
+ if (pceBits > (INT)alignAnchor) {
+ goto bail;
+ }
+
/* store the number of PCE bits */
bs.num_pce_bits = pceBits;
} else {
diff --git a/libMpegTPDec/src/tpdec_asc.cpp b/libMpegTPDec/src/tpdec_asc.cpp
index 8868b22..56de494 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
@@ -1325,9 +1325,9 @@ static TRANSPORTDEC_ERROR EldSpecificConfig_Parse(CSAudioSpecificConfig *asc,
CSTpCallBacks *cb) {
TRANSPORTDEC_ERROR ErrorStatus = TRANSPORTDEC_OK;
CSEldSpecificConfig *esc = &asc->m_sc.m_eldSpecificConfig;
- int eldExtType;
+ UINT eldExtType;
int eldExtLen, len, cnt, ldSbrLen = 0, eldExtLenSum, numSbrHeader = 0,
- sbrIndex;
+ sbrIndex, eldExtCnt = 0;
unsigned char downscale_fill_nibble;
@@ -1394,9 +1394,8 @@ static TRANSPORTDEC_ERROR EldSpecificConfig_Parse(CSAudioSpecificConfig *asc,
eldExtLenSum = FDKgetValidBits(hBs);
esc->m_downscaledSamplingFrequency = asc->m_samplingFrequency;
/* parse ExtTypeConfigData */
- while (
- ((eldExtType = FDKreadBits(hBs, 4)) != ELDEXT_TERM) &&
- ((INT)FDKgetValidBits(hBs) >= 0)) {
+ while (((eldExtType = FDKreadBits(hBs, 4)) != ELDEXT_TERM) &&
+ ((INT)FDKgetValidBits(hBs) >= 0) && (eldExtCnt++ < 15)) {
eldExtLen = len = FDKreadBits(hBs, 4);
if (len == 0xf) {
len = FDKreadBits(hBs, 8);
@@ -1440,7 +1439,8 @@ 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);
@@ -1454,6 +1454,9 @@ static TRANSPORTDEC_ERROR EldSpecificConfig_Parse(CSAudioSpecificConfig *asc,
break;
}
}
+ if (eldExtType != ELDEXT_TERM) {
+ return TRANSPORTDEC_PARSE_ERROR;
+ }
if ((INT)FDKgetValidBits(hBs) < 0) {
return TRANSPORTDEC_PARSE_ERROR;
@@ -1947,6 +1950,9 @@ 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);
@@ -2026,7 +2032,8 @@ 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;
}
}
@@ -2138,6 +2145,24 @@ 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;
@@ -2152,6 +2177,10 @@ 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) {
diff --git a/libMpegTPDec/src/tpdec_latm.cpp b/libMpegTPDec/src/tpdec_latm.cpp
index 2edf055..3b71db8 100644
--- a/libMpegTPDec/src/tpdec_latm.cpp
+++ b/libMpegTPDec/src/tpdec_latm.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
@@ -367,10 +367,10 @@ TRANSPORTDEC_ERROR CLatmDemux_ReadStreamMuxConfig(
}
if (pLatmDemux->m_AudioMuxVersion == 1) {
FDK_BITSTREAM tmpBs;
- UINT ascLen = 0;
+ INT ascLen = 0;
ascLen = CLatmDemux_GetValue(bs);
/* The ascLen could be wrong, so check if validBits<=bufBits*/
- if (ascLen > FDKgetValidBits(bs)) {
+ if (ascLen < 0 || ascLen > (INT)FDKgetValidBits(bs)) {
ErrorStatus = TRANSPORTDEC_PARSE_ERROR;
goto bail;
}
diff --git a/libMpegTPDec/src/tpdec_lib.cpp b/libMpegTPDec/src/tpdec_lib.cpp
index 506aed3..091d011 100644
--- a/libMpegTPDec/src/tpdec_lib.cpp
+++ b/libMpegTPDec/src/tpdec_lib.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
@@ -482,7 +482,8 @@ TRANSPORTDEC_ERROR transportDec_InBandConfig(HANDLE_TRANSPORTDEC hTp,
for (int i = 0; i < 2; i++) {
if (i > 0) {
- FDKpushBack(hBs, newConfigLength * 8 - FDKgetValidBits(hBs));
+ FDKpushBack(hBs,
+ (INT)newConfigLength * 8 - (INT)FDKgetValidBits(hBs));
configMode = AC_CM_ALLOC_MEM;
}
/* config transport decoder */
@@ -663,10 +664,14 @@ TRANSPORTDEC_ERROR transportDec_FillData(const HANDLE_TRANSPORTDEC hTp,
if (*pBytesValid == 0) {
/* nothing to do */
return TRANSPORTDEC_OK;
- }
-
- if (hTp->numberOfRawDataBlocks <= 0) {
+ } else {
+ const int bytesValid = *pBytesValid;
FDKfeedBuffer(hBs, pBuffer, bufferSize, pBytesValid);
+
+ if (hTp->numberOfRawDataBlocks > 0) {
+ hTp->globalFramePos += (bytesValid - *pBytesValid) * 8;
+ hTp->accessUnitAnchor[layer] = FDKgetValidBits(hBs);
+ }
}
}
@@ -924,6 +929,11 @@ static TRANSPORTDEC_ERROR transportDec_readHeader(
}
}
}
+ /* if an error is detected terminate config parsing to avoid that an
+ * invalid config is accepted in the second pass */
+ if (err != TRANSPORTDEC_OK) {
+ break;
+ }
}
} else {
/* Reset CRC because the next bits are the beginning of a
@@ -976,6 +986,9 @@ static TRANSPORTDEC_ERROR transportDec_readHeader(
CLatmDemux_GetNrOfSubFrames(&hTp->parser.latm);
if (hTp->transportFmt == TT_MP4_LOAS) {
syncLayerFrameBits -= startPos - (INT)FDKgetValidBits(hBs) - (13);
+ if (syncLayerFrameBits <= 0) {
+ err = TRANSPORTDEC_SYNC_ERROR;
+ }
}
}
} else {
@@ -1151,6 +1164,11 @@ static TRANSPORTDEC_ERROR synchronization(HANDLE_TRANSPORTDEC hTp,
&rawDataBlockLength, &fTraverseMoreFrames,
&syncLayerFrameBits, &fConfigFound,
&headerBits);
+ if (headerBits > bitsAvail) {
+ err = (headerBits < (INT)hBs->hBitBuf.bufBits)
+ ? TRANSPORTDEC_NOT_ENOUGH_BITS
+ : TRANSPORTDEC_SYNC_ERROR;
+ }
if (TPDEC_IS_FATAL_ERROR(err)) {
/* Rewind - TPDEC_SYNCSKIP, in order to look for a synch one bit ahead
* next time. Ensure that the bit amount lands at a multiple of
@@ -1181,8 +1199,6 @@ static TRANSPORTDEC_ERROR synchronization(HANDLE_TRANSPORTDEC hTp,
}
if (err == TRANSPORTDEC_NOT_ENOUGH_BITS) {
- /* Enforce reading of new data */
- hTp->numberOfRawDataBlocks = 0;
break;
}
@@ -1263,8 +1279,9 @@ static TRANSPORTDEC_ERROR synchronization(HANDLE_TRANSPORTDEC hTp,
if (!(hTp->flags & (TPDEC_LOST_FRAMES_PENDING | TPDEC_IGNORE_BUFFERFULLNESS |
TPDEC_SYNCOK)) &&
err == TRANSPORTDEC_OK) {
- err = additionalHoldOffNeeded(hTp, transportDec_GetBufferFullness(hTp),
- FDKgetValidBits(hBs) - syncLayerFrameBits);
+ err =
+ additionalHoldOffNeeded(hTp, transportDec_GetBufferFullness(hTp),
+ (INT)FDKgetValidBits(hBs) - syncLayerFrameBits);
if (err == TRANSPORTDEC_NOT_ENOUGH_BITS) {
hTp->holdOffFrames++;
}
@@ -1273,7 +1290,9 @@ static TRANSPORTDEC_ERROR synchronization(HANDLE_TRANSPORTDEC hTp,
/* Rewind for retry because of not enough bits */
if (err == TRANSPORTDEC_NOT_ENOUGH_BITS) {
FDKpushBack(hBs, headerBits);
+ hTp->numberOfRawDataBlocks = numRawDataBlocksPrevious;
headerBits = 0;
+ rawDataBlockLength = rawDataBlockLengthPrevious;
} else {
/* reset hold off frame counter */
hTp->holdOffFrames = 0;
@@ -1460,7 +1479,7 @@ TRANSPORTDEC_ERROR transportDec_ReadAccessUnit(const HANDLE_TRANSPORTDEC hTp,
for (i = 0; i < 2; i++) {
if (i > 0) {
- FDKpushBack(hBs, bsStart - FDKgetValidBits(hBs));
+ FDKpushBack(hBs, bsStart - (INT)FDKgetValidBits(hBs));
configMode = AC_CM_ALLOC_MEM;
}
@@ -1750,7 +1769,7 @@ TRANSPORTDEC_ERROR transportDec_GetLibInfo(LIB_INFO *info) {
info += i;
info->module_id = FDK_TPDEC;
-#ifdef __ANDROID__
+#ifdef SUPPRESS_BUILD_DATE_INFO
info->build_date = "";
info->build_time = "";
#else
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 02:19:12 +0000