MP4_ERROR_CODE TimeToSampleAtom::GetSampleCountAt(uint32 aIndex, uint32& aCount)
{
MP4_ERROR_CODE retval = READ_FAILED;
if ((aIndex < _entryCount) && _psampleCountVec)
{
if (_parsing_mode == 1)
CheckAndParseEntry(aIndex);
aCount = _psampleCountVec[aIndex%_stbl_buff_size];
retval = EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>TimeToSampleAtom::getSampleCountAt aIndex = %d", aIndex));
}
return retval;
}
// Return sample offset at index
MP4_ERROR_CODE CompositionOffsetAtom::GetTimeOffsetForSampleNumberPeek(uint32 aSampleNumber, uint32& aTimeOffset)
{
MP4_ERROR_CODE retval = DEFAULT_ERROR;
// It is assumed that sample 0 has a ts of 0 - i.e. the first
// entry in the table starts with the delta between sample 1 and sample 0
if ((_psampleOffsetVec == NULL) ||
(_psampleCountVec == NULL) ||
(_entryCount == 0))
{
return retval;
}
// note that aSampleNumber is a zero based index while _currGetSampleCount is 1 based index
if (aSampleNumber < _currPeekSampleCount)
{
aTimeOffset = _currPeekTimeOffset;
retval = EVERYTHING_FINE;
}
else
{
do
{
_currPeekIndex++;
if (_parsing_mode)
CheckAndParseEntry(_currPeekIndex);
_currPeekSampleCount += _psampleCountVec[_currPeekIndex%_stbl_buff_size];
_currPeekTimeOffset = _psampleOffsetVec[_currPeekIndex%_stbl_buff_size];
}
while (_currPeekSampleCount == 0);
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek- _currPeekIndex =%d", _currPeekIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek- _currPeekSampleCount =%d", _currPeekSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek- _currPeekTimeOffset =%d", _currPeekTimeOffset));
if (aSampleNumber < _currPeekSampleCount)
{
aTimeOffset = _currPeekTimeOffset;
retval = EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>CompositionOffsetAtom::getTimeOffsetForaSampleNumberberPeek aSampleNumber = %d", aSampleNumber));
}
}
return retval;
}
// Return the number of samples at index
MP4_ERROR_CODE CompositionOffsetAtom::GetSampleCountAt(uint32 aIndex, uint32& aSampleCount)
{
MP4_ERROR_CODE retval = DEFAULT_ERROR;
if ((aIndex < _entryCount) && _psampleCountVec)
{
if (_parsing_mode == 1)
CheckAndParseEntry(aIndex);
aSampleCount = _psampleCountVec[aIndex%_stbl_buff_size];
retval = EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>CompositionOffsetAtom::getSampleCountAt aIndex = %d", aIndex));
}
return retval;
}
// Returns the timestamp delta (ms) for the current sample given by num. This value
// is the difference in timestamps between the sample (num) and the previous sample
// in the track. It is implicit that sample[0] occurs at timestamp ts=0.
MP4_ERROR_CODE TimeToSampleAtom::GetTimeDeltaForSampleNumberGet(uint32 aSampleNumber, uint32& aTimeDelta)
{
MP4_ERROR_CODE retval = READ_FAILED;
// It is assumed that sample 0 has a ts of 0 - i.e. the first
// entry in the table starts with the delta between sample 1 and sample 0
if ((NULL == _psampleDeltaVec) ||
(NULL == _psampleCountVec) ||
(0 == _entryCount))
{
return retval;
}
// note that sampleNum is a zero based index while _currGetSampleCount is 1 based index
if (aSampleNumber < _currGetSampleCount)
{
aTimeDelta = _currGetTimeDelta;
return EVERYTHING_FINE;
}
do
{
++_currGetIndex;
if (_parsing_mode)
CheckAndParseEntry(_currGetIndex);
_currGetSampleCount += _psampleCountVec[_currGetIndex%_stbl_buff_size];
_currGetTimeDelta = _psampleDeltaVec[_currGetIndex%_stbl_buff_size];
}
while (0 == _currGetSampleCount);
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "TimeToSampleAtom::getTimeDeltaForSampleNumberGet- _currGetIndex =%d", _currGetIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "TimeToSampleAtom::getTimeDeltaForSampleNumberGet- _currGetSampleCount =%d", _currGetSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "TimeToSampleAtom::getTimeDeltaForSampleNumberGet- _currGetTimeDelta =%d", _currGetTimeDelta));
if (aSampleNumber < _currGetSampleCount)
{
aTimeDelta = _currGetTimeDelta;
retval = EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>TimeToSampleAtom::getTimeDeltaForSampleNumberGet sampleNum = %d", aSampleNumber));
}
return retval;
}
int32
CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek(uint32 sampleNum)
{
// It is assumed that sample 0 has a ts of 0 - i.e. the first
// entry in the table starts with the delta between sample 1 and sample 0
if ((_psampleOffsetVec == NULL) ||
(_psampleCountVec == NULL) ||
(_entryCount == 0))
{
return PV_ERROR;
}
// note that sampleNum is a zero based index while _currGetSampleCount is 1 based index
if (sampleNum < _currPeekSampleCount)
{
return (_currPeekTimeOffset);
}
else
{
do
{
_currPeekIndex++;
if (_parsing_mode)
CheckAndParseEntry(_currPeekIndex);
_currPeekSampleCount += _psampleCountVec[_currPeekIndex%_stbl_buff_size];
_currPeekTimeOffset = _psampleOffsetVec[_currPeekIndex%_stbl_buff_size];
}
while (_currPeekSampleCount == 0);
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek- _currPeekIndex =%d", _currPeekIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek- _currPeekSampleCount =%d", _currPeekSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek- _currPeekTimeOffset =%d", _currPeekTimeOffset));
if (sampleNum < _currPeekSampleCount)
{
return (_currPeekTimeOffset);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>CompositionOffsetAtom::getTimeOffsetForSampleNumberPeek sampleNum = %d", sampleNum));
return (PV_ERROR);
}
}
}
// This is the most widely used API
// Returns the offset (ms) for the sample given by num. This is used when
// randomly accessing a frame and the timestamp has not been accumulated.
MP4_ERROR_CODE CompositionOffsetAtom::GetTimeOffsetForSampleNumberGet(uint32 aSampleNum, uint32& aTimeOffset)
{
MP4_ERROR_CODE retval = DEFAULT_ERROR;
if ((_psampleOffsetVec == NULL) ||
(_psampleCountVec == NULL) ||
(_entryCount == 0))
{
return retval;
}
// note that aSampleNum is a zero based index while _currGetSampleCount is 1 based index
if (aSampleNum < _currGetSampleCount)
{
aTimeOffset = _currGetTimeOffset;
retval = EVERYTHING_FINE;
}
else
{
do
{
_currGetIndex++;
if (_parsing_mode)
CheckAndParseEntry(_currGetIndex);
_currGetSampleCount += _psampleCountVec[_currGetIndex%_stbl_buff_size];
_currGetTimeOffset = _psampleOffsetVec[_currGetIndex%_stbl_buff_size];
}
while (_currGetSampleCount == 0);
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForaSampleNumberGet- _currGetIndex =%d", _currGetIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForaSampleNumberGet- _currGetSampleCount =%d", _currGetSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForaSampleNumberGet- _currGetTimeOffset =%d", _currGetTimeOffset));
if (aSampleNum < _currGetSampleCount)
{
aTimeOffset = _currGetTimeOffset;
retval = EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>TimeToSampleAtom::getTimeDeltaForaSampleNumberGet aSampleNum = %d", aSampleNum));
}
}
return retval;
}
uint32
SampleToChunkAtom::getSDIndexGet() const
{
if (_psampleDescriptionIndexVec == NULL)
{
return (uint32)PV_ERROR;
}
if (_currGetSDI != 0)
{
return (_currGetSDI);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getSDIndexGet _currGetSDI = %d", _currGetSDI));
return (uint32) PV_ERROR;
}
}
// Returns the samples description index for the samples in all the chunks in run[index]
uint32
SampleToChunkAtom::getSDIndex() const
{
if (_psampleDescriptionIndexVec == NULL)
{
return (uint32)PV_ERROR;
}
if (_Index < _entryCount)
{
return (_psampleDescriptionIndexVec[_Index%_stbl_buff_size]);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getSDIndex"));
return (uint32) PV_ERROR;
}
}
MP4_ERROR_CODE
SampleToChunkAtom::getSDIndexGet(uint32 &SDIndex) const
{
if (_psampleDescriptionIndexVec == NULL)
{
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
if (_currGetSDI != 0)
{
SDIndex = (_currGetSDI);
return EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getSDIndexGet _currGetSDI = %d", _currGetSDI));
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
// Returns the samples description index for the samples in all the chunks in run[index]
MP4_ERROR_CODE
SampleToChunkAtom::getSDIndex(uint32& SDIndex) const
{
if (_psampleDescriptionIndexVec == NULL)
{
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
if (_Index < _entryCount)
{
SDIndex = (_psampleDescriptionIndexVec[_Index%_stbl_buff_size]);
return EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getSDIndex"));
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
// This is the most widely used API
// Returns the offset (ms) for the sample given by num. This is used when
// randomly accessing a frame and the timestamp has not been accumulated.
int32 CompositionOffsetAtom::getTimeOffsetForSampleNumberGet(uint32 sampleNum)
{
if ((_psampleOffsetVec == NULL) ||
(_psampleCountVec == NULL) ||
(_entryCount == 0))
{
return PV_ERROR;
}
// note that sampleNum is a zero based index while _currGetSampleCount is 1 based index
if (sampleNum < _currGetSampleCount)
{
return (_currGetTimeOffset);
}
else
{
do
{
_currGetIndex++;
if (_parsing_mode)
CheckAndParseEntry(_currGetIndex);
_currGetSampleCount += _psampleCountVec[_currGetIndex%_stbl_buff_size];
_currGetTimeOffset = _psampleOffsetVec[_currGetIndex%_stbl_buff_size];
}
while (_currGetSampleCount == 0);
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberGet- _currGetIndex =%d", _currGetIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberGet- _currGetSampleCount =%d", _currGetSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "CompositionOffsetAtom::getTimeOffsetForSampleNumberGet- _currGetTimeOffset =%d", _currGetTimeOffset));
if (sampleNum < _currGetSampleCount)
{
return (_currGetTimeOffset);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>TimeToSampleAtom::getTimeDeltaForSampleNumberGet sampleNum = %d", sampleNum));
return (PV_ERROR);
}
}
}
// Return sample offset at index
int32
CompositionOffsetAtom::getSampleOffsetAt(int32 index)
{
if (_psampleOffsetVec == NULL)
{
return PV_ERROR;
}
if (index < (int32)_entryCount)
{
if (_parsing_mode == 1)
CheckAndParseEntry(index);
return (int32)(_psampleOffsetVec[index%_stbl_buff_size]);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>CompositionOffsetAtom::getSampleOffsetAt index = %d", index));
return PV_ERROR;
}
}
// Returns the chunk number of the first chunk in run[index]
int32
SampleToChunkAtom::getFirstChunkAt(uint32 index)
{
if (_pfirstChunkVec == NULL)
{
return PV_ERROR;
}
if (index < _entryCount)
{
if (_parsing_mode == 1)
{
CheckAndParseEntry(index);
}
return (_pfirstChunkVec[index%_stbl_buff_size]);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>SampleToChunkAtom::getFirstChunkAt index = %d", index));
return PV_ERROR;
}
}
// Returns the chunk number of the first chunk in run[index]
MP4_ERROR_CODE
SampleToChunkAtom::getFirstChunkAt(uint32 index, int32& pos)
{
if (_pfirstChunkVec == NULL)
{
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
if (index < _entryCount)
{
if (_parsing_mode == 1)
{
CheckAndParseEntry(index);
}
pos = (_pfirstChunkVec[index%_stbl_buff_size]);
return EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>SampleToChunkAtom::getFirstChunkAt index = %d", index));
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
MetaDataAtom::MetaDataAtom(MP4_FF_FILE *fp, uint32 size, uint32 type): Atom(fp, size, type)
{
_success = true;
// User ilst Data
_pITunesILSTAtom = NULL;
_pHdlrAtom = NULL;
int32 _count = _size - getDefaultSize();
uint32 data_32_hdlr = 0;
iLogger = PVLogger::GetLoggerObject("mp4ffparser");
// Skip first 4 bytes.
if (!AtomUtils::read32(fp, data_32_hdlr))
{
_success = false;
_mp4ErrorCode = READ_META_DATA_FAILED;
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>MetaDataAtom::MetaDataAtom READ_META_DATA_FAILED if(!AtomUtils::read32(fp,data_32_hdlr)))"));
return;
}
_count -= 4;
while (_count > 0)
{
uint32 atomType = UNKNOWN_ATOM;
uint32 atomSize = 0;
uint32 currPtr = AtomUtils::getCurrentFilePosition(fp);
AtomUtils::getNextAtomType(fp, atomSize, atomType);
// Validate atomSize
if (atomSize < DEFAULT_ATOM_SIZE)
{
_success = false;
_mp4ErrorCode = ZERO_OR_NEGATIVE_ATOM_SIZE;
break;
}
if ((atomType == FREE_SPACE_ATOM) || (atomType == UNKNOWN_ATOM))
{
//skip the atom
if (_count < atomSize)
{
AtomUtils::seekFromStart(fp, currPtr);
AtomUtils::seekFromCurrPos(fp, _count);
_count = 0;
return;
}
_count -= atomSize;
atomSize -= DEFAULT_ATOM_SIZE;
AtomUtils::seekFromCurrPos(fp, atomSize);
}
else if (atomType == HANDLER_ATOM)
{
PV_MP4_FF_NEW(fp->auditCB, HandlerAtom, (fp, atomSize, atomType), _pHdlrAtom);
if (!_pHdlrAtom->MP4Success())
{
AtomUtils::seekFromStart(fp, currPtr);
AtomUtils::seekFromCurrPos(fp, atomSize);
PV_MP4_FF_DELETE(NULL, HandlerAtom, _pHdlrAtom);
_pHdlrAtom = NULL;
_count -= atomSize;
}
if (_pHdlrAtom != NULL)
{
if (_pHdlrAtom->getHandlerType() != ITUNES_MDIRAPPL_HDLR_PART1)
{
// Skip the parsing...
fp->_pvfile.Seek(atomSize, Oscl_File::SEEKCUR);
return;
}
_count -= _pHdlrAtom->getSize();
}
}
// Read the ilst Atom
else if (atomType == ITUNES_ILST_ATOM)
{
PV_MP4_FF_NEW(fp->auditCB, ITunesILSTAtom, (fp, atomSize, atomType), _pITunesILSTAtom);
if (!_pITunesILSTAtom->MP4Success())
{
AtomUtils::seekFromStart(fp, currPtr);
AtomUtils::seekFromCurrPos(fp, atomSize);
PV_MP4_FF_DELETE(NULL, ITunesILSTAtom, _pITunesILSTAtom);
_pITunesILSTAtom = NULL;
_count -= atomSize;
}
else
_count -= _pITunesILSTAtom->getSize();
}
else
{
//Unexpected atomType. Flag an error.
_success = false;
_mp4ErrorCode = READ_META_DATA_FAILED;
break;
}
}
}
// Stream-in ctor
// Create and return a new SampleToChunkAtom by reading in from an ifstream
SampleToChunkAtom::SampleToChunkAtom(MP4_FF_FILE *fp, uint32 size, uint32 type, OSCL_wString& filename, uint32 parsingMode)
: FullAtom(fp, size, type)
{
_pfirstChunkVec = NULL;
_psamplesPerChunkVec = NULL;
_psampleDescriptionIndexVec = NULL;
_Index = 0;
_numChunksInRun = 0;
_majorGetIndex = 0;
_currGetChunk = -1;
_numGetChunksInRun = 0;
_currGetSampleCount = 0;
_firstGetSampleInCurrChunk = 0;
_numGetSamplesPerChunk = 0;
_currGetSDI = 0;
_majorPeekIndex = 0;
_currPeekChunk = -1;
_numPeekChunksInRun = 0;
_currPeekSampleCount = 0;
_firstPeekSampleInCurrChunk = 0;
_numPeekSamplesPerChunk = 0;
_currPeekSDI = 0;
_parsed_entry_cnt = 0;
_fileptr = NULL;
_stbl_buff_size = MAX_CACHED_TABLE_ENTRIES_FILE;
_next_buff_number = 0;
_curr_buff_number = 0;
_curr_entry_point = 0;
_stbl_fptr_vec = NULL;
_parsing_mode = parsingMode;
iLogger = PVLogger::GetLoggerObject("mp4ffparser");
iStateVarLogger = PVLogger::GetLoggerObject("mp4ffparser_mediasamplestats");
iParsedDataLogger = PVLogger::GetLoggerObject("mp4ffparser_parseddata");
if (_success)
{
_currentChunkNumber = 0;
_maxNumSamplesPerChunk = DEFAULT_MAX_NUM_SAMPLES_PER_CHUNK;
_maxChunkDataSize = DEFAULT_MAX_CHUNK_DATA_SIZE;
if (!AtomUtils::read32(fp, _entryCount))
{
_success = false;
}
PVMF_MP4FFPARSER_LOGPARSEDINFO((0, "SampleToChunkAtom::SampleToChunkAtom- _entryCount =%d", _entryCount));
TOsclFileOffset dataSize = _size - (DEFAULT_FULL_ATOM_SIZE + 4);
uint32 entrySize = (4 + 4 + 4);
if ((TOsclFileOffset)(_entryCount*entrySize) > dataSize)
{
_success = false;
}
if (_success)
{
if (_entryCount > 0)
{
if (_parsing_mode)
{
if ((_entryCount > _stbl_buff_size)) // cahce size is 4K so that optimization should work if entry_count is greater than 4K
{
uint32 fptrBuffSize = (_entryCount / _stbl_buff_size) + 1;
PV_MP4_FF_ARRAY_NEW(NULL, TOsclFileOffset, (fptrBuffSize), _stbl_fptr_vec);
if (_stbl_fptr_vec == NULL)
{
_success = false;
_mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
return;
}
PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_stbl_buff_size), _pfirstChunkVec);
if (_pfirstChunkVec == NULL)
{
_success = false;
_mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
return;
}
PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_stbl_buff_size), _psamplesPerChunkVec);
if (_psamplesPerChunkVec == NULL)
{
_success = false;
_mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
return;
}
PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_stbl_buff_size), _psampleDescriptionIndexVec);
if (_psampleDescriptionIndexVec == NULL)
{
_success = false;
_mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
return;
}
{
OsclAny* ptr = (MP4_FF_FILE *)(oscl_malloc(sizeof(MP4_FF_FILE)));
if (ptr == NULL)
{
_success = false;
_mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
return;
}
_fileptr = OSCL_PLACEMENT_NEW(ptr, MP4_FF_FILE());
_fileptr->_fileServSession = fp->_fileServSession;
_fileptr->_pvfile.SetCPM(fp->_pvfile.GetCPM());
_fileptr->_pvfile.SetFileHandle(fp->_pvfile.iFileHandle);
if (AtomUtils::OpenMP4File(filename,
Oscl_File::MODE_READ | Oscl_File::MODE_BINARY,
_fileptr) != 0)
{
_success = false;
_mp4ErrorCode = FILE_OPEN_FAILED;
}
_fileptr->_fileSize = fp->_fileSize;
}
TOsclFileOffset _head_offset = AtomUtils::getCurrentFilePosition(fp);
AtomUtils::seekFromCurrPos(fp, dataSize);
AtomUtils::seekFromStart(_fileptr, _head_offset);
ParseEntryUnit(0);
uint32 firstsamplenum = 0;
resetStateVariables(firstsamplenum);
return;
}
else
{
_parsing_mode = 0;
_stbl_buff_size = _entryCount;
}
}
else
{
_parsing_mode = 0;
_stbl_buff_size = _entryCount;
}
PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _pfirstChunkVec);
PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _psamplesPerChunkVec);
PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _psampleDescriptionIndexVec);
uint32 firstChunk;
uint32 samplesPerChunk;
uint32 sampleDescrIndex;
uint32 offSet = 0;
uint32 prevFirstChunk = 0;
uint32 j = 0;
for (uint32 i = 0; i < _entryCount; i++)
{
if (!AtomUtils::read32(fp, firstChunk))
{
_success = false;
break;
}
if (i == 0)
offSet = firstChunk;
if (!AtomUtils::read32(fp, samplesPerChunk))
{
_success = false;
break;
}
if (!AtomUtils::read32(fp, sampleDescrIndex))
{
_success = false;
break;
}
if (firstChunk > prevFirstChunk)
{
_pfirstChunkVec[j] = (firstChunk - offSet);
_psamplesPerChunkVec[j] = (samplesPerChunk);
_psampleDescriptionIndexVec[j] = (sampleDescrIndex);
prevFirstChunk = firstChunk;
j++;
}
}
_entryCount = j;
uint32 firstsamplenum = 0;
resetStateVariables(firstsamplenum);
}
else
{
_pfirstChunkVec = NULL;
_psamplesPerChunkVec = NULL;
_psampleDescriptionIndexVec = NULL;
}
}
if (!_success)
{
_mp4ErrorCode = READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>SampleToChunkAtom::SampleToChunkAtom- Read SampleToChunk Atom failed %d", _mp4ErrorCode));
}
}
else
{
if (_mp4ErrorCode != ATOM_VERSION_NOT_SUPPORTED)
{
_mp4ErrorCode = READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR =>SampleToChunkAtom::SampleToChunkAtom- Read SampleToChunk Atom failed %d", _mp4ErrorCode));
}
}
}
// Returns the chunk number for the given sample number
uint32
SampleToChunkAtom::getChunkNumberForSampleGet(uint32 sampleNum)
{
if ((_pfirstChunkVec == NULL) ||
(_psamplesPerChunkVec == NULL))
{
return (uint32)PV_ERROR;
}
if (_parsing_mode == 1)
{
CheckAndParseEntry(_majorGetIndex);
}
if (sampleNum < _currGetSampleCount)
{
return (_currGetChunk);
}
else if (_numGetChunksInRun > 1)
{
_firstGetSampleInCurrChunk = _currGetSampleCount;
_currGetSampleCount += _numGetSamplesPerChunk;
_currGetChunk++;
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _firstGetSampleInCurrChunk =%d", _firstGetSampleInCurrChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _currGetSampleCount =%d", _currGetSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _currGetChunk =%d", _currGetChunk));
// to handle special case, every sample is a chunk
if (_entryCount > 1)
{
_numGetChunksInRun--;
}
if (sampleNum < _currGetSampleCount)
{
return (_currGetChunk);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSampleGet sampleNum= %d", sampleNum));
return (uint32)PV_ERROR;
}
}
else if (_numGetChunksInRun <= 1)
{
if (_majorGetIndex < (int32)(_entryCount - 1))
{
uint32 prevFirstChunk = _pfirstChunkVec[_majorGetIndex%_stbl_buff_size];
_numGetSamplesPerChunk = _psamplesPerChunkVec[_majorGetIndex%_stbl_buff_size];
_currGetSDI = _psampleDescriptionIndexVec[_majorGetIndex%_stbl_buff_size];
if (_parsing_mode == 1)
{
CheckAndParseEntry(_majorGetIndex + 1);
}
uint32 nextFirstChunk = _pfirstChunkVec[(_majorGetIndex+1)%_stbl_buff_size];
_numGetChunksInRun = nextFirstChunk - prevFirstChunk;
_numChunksInRun = _numGetChunksInRun;
_majorGetIndex++;
_firstGetSampleInCurrChunk = _currGetSampleCount;
_currGetSampleCount += _numGetSamplesPerChunk;
_currGetChunk++;
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _numGetChunksInRun =%d", _numGetChunksInRun));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _numGetSamplesPerChunk =%d", _numGetSamplesPerChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _currGetSampleCount =%d", _currGetSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _currGetChunk =%d", _currGetChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _majorGetIndex =%d", _majorGetIndex));
if (sampleNum < _currGetSampleCount)
{
return (_currGetChunk);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSampleGet sampleNum= %d", sampleNum));
return (uint32)PV_ERROR;
}
}
else if (_majorGetIndex == (int32)(_entryCount - 1))
{
// Last run of chunks
_numGetChunksInRun = 1;
_numChunksInRun = _numGetChunksInRun;
_currGetSDI = _psampleDescriptionIndexVec[_majorGetIndex%_stbl_buff_size];
_numGetSamplesPerChunk =
_psamplesPerChunkVec[_majorGetIndex%_stbl_buff_size];
_firstGetSampleInCurrChunk = _currGetSampleCount;
_currGetSampleCount += _numGetSamplesPerChunk;
_currGetChunk++;
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _numGetSamplesPerChunk =%d", _firstGetSampleInCurrChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _firstGetSampleInCurrChunk =%d", _firstGetSampleInCurrChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _currGetSampleCount =%d", _currGetSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSampleGet- _currGetChunk =%d", _currGetChunk));
if (sampleNum < _currGetSampleCount)
{
return (_currGetChunk);
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSampleGet sampleNum= %d", sampleNum));
return (uint32)PV_ERROR;
}
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSampleGet _majorGetIndex = %d _entryCount= %d", _majorGetIndex, _entryCount));
return (uint32)PV_ERROR;
}
}
return (uint32)PV_ERROR; // Should never get here
}
MP4_ERROR_CODE
SampleToChunkAtom::getChunkNumberForSamplePeek(uint32 sampleNum, uint32& ChunkNumber)
{
if ((_pfirstChunkVec == NULL) ||
(_psamplesPerChunkVec == NULL))
{
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
if (_parsing_mode == 1)
{
CheckAndParseEntry(_majorPeekIndex);
}
if (sampleNum < _currPeekSampleCount)
{
ChunkNumber = _currPeekChunk;
return EVERYTHING_FINE;
}
else if (_numPeekChunksInRun > 1)
{
_firstPeekSampleInCurrChunk = _currPeekSampleCount;
_currPeekSampleCount += _numPeekSamplesPerChunk;
_currPeekChunk++;
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _firstPeekSampleInCurrChunk =%d", _firstPeekSampleInCurrChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _currPeekSampleCount =%d", _currPeekSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _numPeekSamplesPerChunk =%d", _numPeekSamplesPerChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _currPeekChunk =%d", _currPeekChunk));
// to handle special case, every sample is a chunk
if (_entryCount > 1)
{
_numPeekChunksInRun--;
}
if (sampleNum < _currPeekSampleCount)
{
ChunkNumber = _currPeekChunk;
return EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSamplePeek sampleNum = %d", sampleNum));
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
else if (_numPeekChunksInRun <= 1)
{
if (_majorPeekIndex < (int32)(_entryCount - 1))
{
uint32 prevNextChunk = _pfirstChunkVec[_majorPeekIndex%_stbl_buff_size];
_numPeekSamplesPerChunk = _psamplesPerChunkVec[_majorPeekIndex%_stbl_buff_size];
_currPeekSDI = _psampleDescriptionIndexVec[_majorPeekIndex%_stbl_buff_size];
if (_parsing_mode == 1)
{
CheckAndParseEntry(_majorPeekIndex + 1);
}
uint32 nextfirstChunk = _pfirstChunkVec[(_majorPeekIndex+1)%_stbl_buff_size];
_numPeekChunksInRun = nextfirstChunk - prevNextChunk;
_majorPeekIndex++;
_firstPeekSampleInCurrChunk = _currPeekSampleCount;
_currPeekSampleCount += _numPeekSamplesPerChunk;
_currPeekChunk++;
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _numPeekChunksInRun =%d", _numPeekChunksInRun));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _numPeekSamplesPerChunk =%d", _numPeekSamplesPerChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _majorPeekIndex =%d", _majorPeekIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _firstPeekSampleInCurrChunk =%d", _firstPeekSampleInCurrChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _currPeekSampleCount =%d", _currPeekSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _numPeekSamplesPerChunk =%d", _numPeekSamplesPerChunk));
if (sampleNum < _currPeekSampleCount)
{
ChunkNumber = _currPeekChunk;
return EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSamplePeek sampleNum = %d", sampleNum));
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
else if (_majorPeekIndex == (int32)(_entryCount - 1))
{
_numPeekChunksInRun = 1;
_currPeekSDI =
_psampleDescriptionIndexVec[_majorPeekIndex%_stbl_buff_size];
_numPeekSamplesPerChunk =
_psamplesPerChunkVec[_majorPeekIndex%_stbl_buff_size];
_firstPeekSampleInCurrChunk = _currPeekSampleCount;
_currPeekSampleCount += _numPeekSamplesPerChunk;
_currPeekChunk++;
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _numPeekSamplesPerChunk =%d", _numPeekSamplesPerChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _majorPeekIndex =%d", _majorPeekIndex));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _firstPeekSampleInCurrChunk =%d", _firstPeekSampleInCurrChunk));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _currPeekSampleCount =%d", _currPeekSampleCount));
PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "SampleToChunkAtom::getChunkNumberForSamplePeek- _numPeekSamplesPerChunk =%d", _numPeekSamplesPerChunk));
if (sampleNum < _currPeekSampleCount)
{
ChunkNumber = _currPeekChunk;
return EVERYTHING_FINE;
}
else
{
PVMF_MP4FFPARSER_LOGERROR((0, "ERROR=>SampleToChunkAtom::getChunkNumberForSamplePeek sampleNum = %d", sampleNum));
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
else
{
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED;
}
}
return READ_SAMPLE_TO_CHUNK_ATOM_FAILED; // Should never get here
}
