// Stream-in ctor
CompositionOffsetAtom::CompositionOffsetAtom(MP4_FF_FILE *fp,
        uint32 mediaType,
        uint32 size,
        uint32 type,
        OSCL_wString& filename,
        uint32 parsingMode):
        FullAtom(fp, size, type),
        OsclTimerObject(OsclActiveObject::EPriorityNominal, "CompositionOffsetAtom")
{
    _psampleCountVec = NULL;
    _psampleOffsetVec = NULL;
    MT_SampleCount  = NULL;
    MT_EntryCount  = NULL;
    iMarkerTableCreation = false;
    MT_Table_Size = 0;

    _currGetSampleCount = 0;
    _currGetIndex = -1;
    _currGetTimeOffset = 0;
    _currPeekSampleCount = 0;
    _currPeekIndex = -1;
    _currPeekTimeOffset = 0;

    MT_Counter = 1;
    addSampleCount = 0;
    prevSampleCount = 0;
    entrycountTraversed = 0;
    refSample = MT_SAMPLECOUNT_INCREMENT;
    MT_j = 1;

    _mediaType = mediaType;
    _parsed_entry_cnt = 0;
    _fileptr = NULL;
    _parsing_mode = 0;
    _parsing_mode = parsingMode;


    _stbl_buff_size = CTTS_MIN_SAMPLE_TABLE_SIZE;
    _next_buff_number = 0;
    _curr_buff_number = 0;
    _curr_entry_point = 0;
    _stbl_fptr_vec = NULL;

    iLogger = PVLogger::GetLoggerObject("mp4ffparser");
    iStateVarLogger = PVLogger::GetLoggerObject("mp4ffparser_mediasamplestats");
    iParsedDataLogger = PVLogger::GetLoggerObject("mp4ffparser_parseddata");

    iMarkerTableCreation = false;

    /* Add this AO to the scheduler */
    if (OsclExecScheduler::Current() != NULL)
    {
        if (!IsAdded())
        {
            AddToScheduler();
        }
    }

    if (_success)
    {
        if (!AtomUtils::read32(fp, _entryCount))
        {
            _success = false;
        }

        PVMF_MP4FFPARSER_LOGPARSEDINFO((0, "CompositionOffsetAtom::CompositionOffsetAtom- _entryCount =%d", _entryCount));
        uint32 dataSize = _size - (DEFAULT_FULL_ATOM_SIZE + 4);

        uint32 entrySize = (4 + 4);

        if ((_entryCount*entrySize) > dataSize)
        {
            _success = false;
        }

        if (_success)
        {
            if (_entryCount > 0)
            {
                if (parsingMode == 1)
                {
                    // cache size is 4K so that optimization
                    // should work if entry_count is greater than 4K
                    if (_entryCount > _stbl_buff_size)
                    {

                        uint32 fptrBuffSize = (_entryCount / _stbl_buff_size) + 1;

                        PV_MP4_FF_ARRAY_NEW(NULL, uint32, (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), _psampleCountVec);
                        if (_psampleCountVec == NULL)
                        {
                            _success = false;
                            _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                            return;
                        }


                        PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_stbl_buff_size), _psampleOffsetVec);
                        if (_psampleOffsetVec == NULL)
                        {
                            PV_MP4_ARRAY_DELETE(NULL, _psampleOffsetVec);
                            _psampleOffsetVec = NULL;
                            _success = false;
                            _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                            return;
                        }

                        for (uint32 idx = 0; idx < _stbl_buff_size; idx++)  //initialization
                        {
                            _psampleCountVec[idx] = 0;
                            _psampleOffsetVec[idx] = 0;
                        }

                        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;

                        int32 _head_offset = AtomUtils::getCurrentFilePosition(fp);
                        AtomUtils::seekFromCurrPos(fp, dataSize);
                        AtomUtils::seekFromStart(_fileptr, _head_offset);

                        return;
                    }
                    else
                    {
                        _parsing_mode = 0;
                        _stbl_buff_size = _entryCount;
                    }
                }
                else
                {
                    _stbl_buff_size = _entryCount;
                }

                PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _psampleCountVec);
                if (_psampleCountVec == NULL)
                {
                    _success = false;
                    _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                    return;
                }

                PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _psampleOffsetVec);
                if (_psampleOffsetVec == NULL)
                {
                    PV_MP4_ARRAY_DELETE(NULL, _psampleOffsetVec);
                    _psampleOffsetVec = NULL;
                    _success = false;
                    _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                    return;
                }

                for (uint32 idx = 0; idx < _entryCount; idx++)  //initialization
                {
                    _psampleCountVec[idx] = 0;
                    _psampleOffsetVec[idx] = 0;
                }

                uint32 number = 0;
                uint32 offset = 0;
                for (_parsed_entry_cnt = 0; _parsed_entry_cnt < _entryCount; _parsed_entry_cnt++)
                {
                    if (!AtomUtils::read32(fp, number))
                    {
                        _success = false;
                        break;
                    }
                    if (!AtomUtils::read32(fp, offset))
                    {
                        _success = false;
                        break;
                    }
                    _psampleCountVec[_parsed_entry_cnt] = (number);
                    _psampleOffsetVec[_parsed_entry_cnt] = (offset);
                }
            }
        }

        if (!_success)
        {
            _mp4ErrorCode = READ_TIME_TO_SAMPLE_ATOM_FAILED;
        }
    }
    else
    {
        if (_mp4ErrorCode != ATOM_VERSION_NOT_SUPPORTED)
            _mp4ErrorCode = READ_TIME_TO_SAMPLE_ATOM_FAILED;
    }
}
// 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));
        }
    }
}
Exemplo n.º 3
0
// Constructor
TrackFragmentAtom::TrackFragmentAtom(MP4_FF_FILE *fp,
                                     uint32 &size,
                                     uint32 type,
                                     uint32 movieFragmentCurrentOffset,
                                     uint32 movieFragmentBaseOffset,
                                     uint32 moofSize,
                                     TrackDurationContainer *trackDurationContainer,
                                     Oscl_Vector<TrackExtendsAtom*, OsclMemAllocator> *trackExtendAtomVec,
                                     bool &parseTrafCompletely,
                                     bool &trafParsingCompleted,
                                     uint32 &countOfTrunsParsed)
        : Atom(fp, size, type)
{
    OSCL_UNUSED_ARG(movieFragmentCurrentOffset);

    _pTrackFragmentHeaderAtom       = NULL;
    _pTrackFragmentRunAtom          = NULL;
    _pinput = NULL;
    _commonFilePtr = NULL;
    _fileSize = 0;
    _currentTrackFragmentRunSampleNumber = 0;
    _currentPlaybackSampleTimestamp = 0;
    _movieFragmentOffset = 0;
    _prevSampleOffset = 0;
    _trackEndDuration = 0;
    _startTrackFragmentTSOffset = 0;
    _pFragmentptrOffsetVec = NULL;
    _peekPlaybackSampleNumber = 0;
    _default_duration = 0;
    _use_default_duratoin = false;
    _pTrackDurationContainer = trackDurationContainer;

    tf_flags = 0;
    trun_offset = 0;

    trunParsingCompleted = true;

    iLogger = PVLogger::GetLoggerObject("mp4ffparser_traf");
    iStateVarLogger = PVLogger::GetLoggerObject("mp4ffparser_mediasamplestats_traf");
    iParsedDataLogger = PVLogger::GetLoggerObject("mp4ffparser_parseddata_traf");
    OsclAny*ptr = oscl_malloc(sizeof(MP4_FF_FILE));
    if (ptr == NULL)
    {
        _success = false;
        _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
        return;
    }
    _pinput = OSCL_PLACEMENT_NEW(ptr, MP4_FF_FILE(*fp));

    _pinput->_fileServSession = fp->_fileServSession;
    _pinput->_pvfile.SetCPM(fp->_pvfile.GetCPM());
    _pinput->_fileSize = fp->_fileSize;
    _pinput->_pvfile.Copy(fp->_pvfile);

    uint32 trun_start = 0;
    uint32 count = size - DEFAULT_ATOM_SIZE;

    uint32 _movieFragmentBaseOffset = movieFragmentBaseOffset - DEFAULT_ATOM_SIZE;
    bool bdo_present = false;
    uint32 base_data_offset = _movieFragmentBaseOffset;
    trackId = 0;
    trun_offset = moofSize + DEFAULT_ATOM_SIZE;

    if (_success)
    {
        PV_MP4_FF_NEW(fp->auditCB, trackFragmentRunAtomVecType, (), _pTrackFragmentRunAtomVec);
        while (count > 0)
        {
            uint32 atomType = UNKNOWN_ATOM;
            uint32 atomSize = 0;
            AtomUtils::getNextAtomType(fp, atomSize, atomType);

            if (atomType == TRACK_FRAGMENT_HEADER_ATOM)
            {
                if (_pTrackFragmentHeaderAtom == NULL)
                {
                    PV_MP4_FF_NEW(fp->auditCB, TrackFragmentHeaderAtom, (fp, atomSize, atomType), _pTrackFragmentHeaderAtom);
                    if (!_pTrackFragmentHeaderAtom->MP4Success())
                    {
                        _success = false;
                        _mp4ErrorCode = READ_MOVIE_EXTENDS_HEADER_FAILED;
                        return;
                    }
                    count -= _pTrackFragmentHeaderAtom->getSize();
                    trackId = _pTrackFragmentHeaderAtom->getTrackId();
                    tf_flags = _pTrackFragmentHeaderAtom->getFlags();
                    PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "@@@@@@@@@@@@@@@****** Track ID= %d ********@@@@@@@@@@@@@@@@", trackId));
                    PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "#### tf_flag =0x%x######", tf_flags));

                    if (tf_flags & 0x000001)
                    {
                        uint64 bdo = _pTrackFragmentHeaderAtom->getBaseDataOffset();
                        base_data_offset = Oscl_Int64_Utils::get_uint64_lower32(bdo);
                        bdo_present = true;
                    }
                    else
                        base_data_offset = _movieFragmentBaseOffset;

                    trun_start = base_data_offset;
                    if (trackDurationContainer != NULL)
                    {
                        for (int32 i = 0; i < trackDurationContainer->getNumTrackInfoVec(); i++)
                        {
                            TrackDurationInfo* trackInfo = trackDurationContainer->getTrackdurationInfoAt(i);
                            if (trackInfo->trackId == trackId)
                            {
                                _trackEndDuration = trackInfo->trackDuration;
                                _startTrackFragmentTSOffset = _trackEndDuration;
                            }
                        }
                    }
                }
                else
                {
                    //duplicate atom
                    count -= atomSize;
                    atomSize -= DEFAULT_ATOM_SIZE;
                    AtomUtils::seekFromCurrPos(fp, atomSize);
                }
            }
            else if (atomType == TRACK_FRAGMENT_RUN_ATOM)
            {
                uint32 trunsParsed = countOfTrunsParsed;
                if (countOfTrunsParsed > COUNT_OF_TRUNS_PARSED_THRESHOLD)
                {
                    countOfTrunsParsed = COUNT_OF_TRUNS_PARSED_THRESHOLD;
                }
                // here we want parser to parse complete TRUN atom.

                PV_MP4_FF_NEW(fp->auditCB, TrackFragmentRunAtom, (fp, atomSize, atomType,
                              base_data_offset,
                              trun_start,
                              trun_offset,
                              _trackEndDuration,
                              bdo_present,
                              trunParsingCompleted,
                              countOfTrunsParsed),
                              _pTrackFragmentRunAtom);

                countOfTrunsParsed = trunsParsed + 1;

                if (!_pTrackFragmentRunAtom->MP4Success())
                {
                    _success = false;
                    _mp4ErrorCode = READ_TRACK_EXTENDS_ATOM_FAILED;
                    return;
                }
                bdo_present = false;
                count -= _pTrackFragmentRunAtom->getSize();

                size = count;
                uint32 trunFlags = _pTrackFragmentRunAtom->getFlags();
                if (!(trunFlags & 0x000100))
                {
                    _use_default_duratoin = true;
                    if (tf_flags & 0x000008)
                    {
                        _default_duration = _pTrackFragmentHeaderAtom->getDefaultSampleDuration();
                        _pTrackFragmentRunAtom->setDefaultDuration(_default_duration);
                    }
                    else
                    {
                        for (uint32 idx = 0; idx < trackExtendAtomVec->size(); idx++)
                        {
                            TrackExtendsAtom* pTrackExtendAtom = (*trackExtendAtomVec)[idx];
                            uint32 id = pTrackExtendAtom->getTrackId();
                            if (id == trackId)
                            {
                                uint32 trexDefaultDuration = pTrackExtendAtom->getDefaultSampleDuration();
                                _default_duration = trexDefaultDuration;
                                _pTrackFragmentRunAtom->setDefaultDuration(trexDefaultDuration);
                            }
                        }
                    }
                }
                if (!(trunFlags & 0x000200))
                {
                    if (tf_flags & 0x000010)
                        _pTrackFragmentRunAtom->setDefaultSampleSize(_pTrackFragmentHeaderAtom->getDefaultSampleSize(), trun_offset);
                    else
                    {
                        for (uint32 idx = 0; idx < trackExtendAtomVec->size(); idx++)
                        {
                            TrackExtendsAtom* pTrackExtendAtom = (*trackExtendAtomVec)[idx];
                            uint32 id = pTrackExtendAtom->getTrackId();
                            if (id == trackId)
                            {
                                uint32 trexDefaultSampleSize = pTrackExtendAtom->getDefaultSampleSize();
                                _pTrackFragmentRunAtom->setDefaultSampleSize(trexDefaultSampleSize, trun_offset);
                            }
                        }
                    }
                }
                _pTrackFragmentRunAtomVec->push_back(_pTrackFragmentRunAtom);
                _trackEndDuration = _pTrackFragmentRunAtom->GetSampleTimeStamp();

                PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "****** tr_flag =0x%x ********", trunFlags));
                if (!parseTrafCompletely)
                {
                    trafParsingCompleted = false;
                    uint64 duration = _trackEndDuration;
                    trackDurationContainer->updateTrackDurationForTrackId(trackId, duration);
                    break;
                }
            }
            else
            {
                count -= atomSize;
                atomSize -= DEFAULT_ATOM_SIZE;
                AtomUtils::seekFromCurrPos(fp, atomSize);
            }
            uint64 track_duration = _trackEndDuration;
            trackDurationContainer->updateTrackDurationForTrackId(trackId, track_duration);
            trafParsingCompleted = true;
        }
    }
    else
    {
// Ctor to create a new ChunkOffsetAtom by reading in from an ifstream
ChunkOffsetAtom::ChunkOffsetAtom(MP4_FF_FILE *fp, uint32 size, uint32 type,
                                 OSCL_wString& filename,
                                 uint32 parsingMode)
        : FullAtom(fp, size, type)
{
    _pchunkOffsets = 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;
    _parsed_entry_cnt = 0;
    _parsingMode = parsingMode;
    _fileptr = NULL;

    if (_success)
    {
        _currentDataOffset = 0;
        if (!AtomUtils::read32(fp, _entryCount))
        {
            _success = false;
        }

        uint32 dataSize = _size - (DEFAULT_FULL_ATOM_SIZE + 4);

        uint32 entrySize = 4;

        if ((_entryCount*entrySize) > dataSize)
        {
            _success = false;
        }

        if (_success)
        {
            if (_entryCount > 0)
            {
                if (_parsingMode == 1)
                {
                    // cache size is 4K so that optimization should work if entry_count is greater than 4K
                    if ((_entryCount > _stbl_buff_size))
                    {
                        uint32 fptrBuffSize = (_entryCount / _stbl_buff_size) + 1;

                        PV_MP4_FF_ARRAY_NEW(NULL, uint32, (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), _pchunkOffsets);
                        if (_pchunkOffsets == 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());
                            if (AtomUtils::OpenMP4File(filename,
                                                       Oscl_File::MODE_READ | Oscl_File::MODE_BINARY,
                                                       _fileptr) != 0)
                            {
                                _success = false;
                                _mp4ErrorCode = FILE_OPEN_FAILED;
                            }

                            _fileptr->_fileSize = fp->_fileSize;
                        }
                        int32 _head_offset = AtomUtils::getCurrentFilePosition(fp);
                        AtomUtils::seekFromCurrPos(fp, dataSize);
                        AtomUtils::seekFromStart(_fileptr, _head_offset);

                        return;
                    }
                    else
                    {
                        _parsingMode = 0;
                        _stbl_buff_size = _entryCount;
                    }

                }
                else
                {
                    _stbl_buff_size = _entryCount;
                }

                _parsingMode = 0;
                PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _pchunkOffsets);

                uint32 offset = 0;
                for (uint32 i = 0; i < _entryCount; i++)
                {
                    if (!AtomUtils::read32(fp, offset))
                    {
                        _success = false;
                        break;
                    }
                    _pchunkOffsets[i] = offset;
                }
                _parsed_entry_cnt = _entryCount;
            }
            else
            {
                _pchunkOffsets = NULL;
            }

        }

        if (!_success)
        {
            _mp4ErrorCode = READ_CHUNK_OFFSET_ATOM_FAILED;
        }
    }
    else
    {
        if (_mp4ErrorCode != ATOM_VERSION_NOT_SUPPORTED)
            _mp4ErrorCode = READ_CHUNK_OFFSET_ATOM_FAILED;
    }
}
Exemplo n.º 5
0
// Stream-in ctor
TimeToSampleAtom::TimeToSampleAtom(MP4_FF_FILE *fp,
                                   uint32 mediaType,
                                   uint32 size,
                                   uint32 type,
                                   OSCL_wString& filename,
                                   uint32 parsingMode)
        : FullAtom(fp, size, type)
{

    _psampleCountVec = NULL;
    _psampleDeltaVec = NULL;

    _currGetSampleCount = 0;
    _currGetIndex = -1;
    _currGetTimeDelta = 0;
    _currPeekSampleCount = 0;
    _currPeekIndex = -1;
    _currPeekTimeDelta = 0;

    _mediaType = mediaType;
    _parsed_entry_cnt = 0;
    _fileptr = NULL;
    _parsing_mode = 0;
    _parsing_mode = parsingMode;

    _stbl_buff_size = MAX_CACHED_TABLE_ENTRIES_FILE;
    _next_buff_number = 0;
    _curr_buff_number = 0;
    _curr_entry_point = 0;
    _stbl_fptr_vec = NULL;

    iLogger = PVLogger::GetLoggerObject("mp4ffparser");
    iStateVarLogger = PVLogger::GetLoggerObject("mp4ffparser_mediasamplestats");
    iParsedDataLogger = PVLogger::GetLoggerObject("mp4ffparser_parseddata");


    if (_success)
    {
        if (!AtomUtils::read32(fp, _entryCount))
        {
            _success = false;
        }
        PVMF_MP4FFPARSER_LOGPARSEDINFO((0, "TimeToSampleAtom::TimeToSampleAtom- _entryCount =%d", _entryCount));
        uint32 dataSize = _size - (DEFAULT_FULL_ATOM_SIZE + 4);

        uint32 entrySize = (4 + 4);

        if ((_entryCount*entrySize) > dataSize)
        {
            _success = false;
        }

        if (_success)
        {
            if (_entryCount > 0)
            {

                if (parsingMode == 1)
                {
                    // cache size is 4K so that optimization should work if entry_count is greater than 4K
                    if ((_entryCount > _stbl_buff_size))
                    {
                        uint32 fptrBuffSize = (_entryCount / _stbl_buff_size) + 1;

                        PV_MP4_FF_ARRAY_NEW(NULL, uint32, (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), _psampleCountVec);
                        if (_psampleCountVec == NULL)
                        {
                            _success = false;
                            _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                            return;
                        }
                        PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_stbl_buff_size), _psampleDeltaVec);
                        if (_psampleDeltaVec == NULL)
                        {
                            PV_MP4_ARRAY_DELETE(NULL, _psampleDeltaVec);
                            _psampleDeltaVec = NULL;
                            _success = false;
                            _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                            return;
                        }
                        for (uint32 idx = 0; idx < _stbl_buff_size; idx++)  //initialization
                        {
                            _psampleCountVec[idx] = 0;
                            _psampleDeltaVec[idx] = 0;
                        }

                        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;

                        int32 _head_offset = AtomUtils::getCurrentFilePosition(fp);
                        AtomUtils::seekFromCurrPos(fp, dataSize);
                        AtomUtils::seekFromStart(_fileptr, _head_offset);
                        return;
                    }
                    else
                    {
                        _parsing_mode = 0;
                        _stbl_buff_size = _entryCount;
                    }
                }
                else
                {
                    _stbl_buff_size = _entryCount;
                }

                PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _psampleCountVec);
                if (_psampleCountVec == NULL)
                {
                    _success = false;
                    _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                    return;
                }
                PV_MP4_FF_ARRAY_NEW(NULL, uint32, (_entryCount), _psampleDeltaVec);
                if (_psampleDeltaVec == NULL)
                {
                    PV_MP4_ARRAY_DELETE(NULL, _psampleDeltaVec);
                    _psampleDeltaVec = NULL;
                    _success = false;
                    _mp4ErrorCode = MEMORY_ALLOCATION_FAILED;
                    return;
                }
                for (uint32 idx = 0; idx < _entryCount; idx++)  //initialization
                {
                    _psampleCountVec[idx] = 0;
                    _psampleDeltaVec[idx] = 0;
                }

                uint32 number = 0;
                uint32 delta = 0;
                for (_parsed_entry_cnt = 0; _parsed_entry_cnt < _entryCount; _parsed_entry_cnt++)
                {
                    if (!AtomUtils::read32(fp, number))
                    {
                        _success = false;
                        break;
                    }
                    if (!AtomUtils::read32(fp, delta))
                    {
                        _success = false;
                        break;
                    }
                    _psampleCountVec[_parsed_entry_cnt] = (number);
                    _psampleDeltaVec[_parsed_entry_cnt] = (delta);
                }
            }
        }

        if (!_success)
        {
            _mp4ErrorCode = READ_TIME_TO_SAMPLE_ATOM_FAILED;
        }
    }
    else
    {
        if (_mp4ErrorCode != ATOM_VERSION_NOT_SUPPORTED)
            _mp4ErrorCode = READ_TIME_TO_SAMPLE_ATOM_FAILED;
    }
}