| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| /*********************************************************************************/ |
| /* ------------------------------------------------------------------- */ |
| /* MPEG-4 Track Fragment Atom Class */ |
| /* ------------------------------------------------------------------- */ |
| /*********************************************************************************/ |
| /* |
| */ |
| |
| #define IMPLEMENT_MovieFragmentRandomAccessAtom |
| |
| #include "atomdefs.h" |
| #include "atomutils.h" |
| #include "moviefragmentrandomaccess.h" |
| |
| typedef Oscl_Vector<TrackFragmentRandomAccessAtom*, OsclMemAllocator> trackFragmentRandomAccessAtomVecType; |
| |
| // Constructor |
| MovieFragmentRandomAccessAtom::MovieFragmentRandomAccessAtom(MP4_FF_FILE *fp, |
| uint32 size, |
| uint32 type) |
| : Atom(fp, size, type) |
| { |
| _pTrackFragmentRandomAccessAtomVec = NULL; |
| _pMfraOffsetAtom = NULL; |
| #if (DISABLE_REPOS_ON_CLIPS_HAVING_UNEQUAL_TFRA_ENTRY_COUNT) |
| // This will store the entry count of TFRA for Video for Vonly,AVT,AV,VT clips and Audio TFRA entry count for Aonly,AT clips |
| // and Text TFRA entry count for Tonly clips. |
| oVideoAudioTextTrackTfraCount = 0; |
| #endif // DISABLE_REPOS_ON_CLIPS_HAVING_UNEQUAL_TFRA_ENTRY_COUNT |
| |
| iLogger = PVLogger::GetLoggerObject("mp4ffparser"); |
| iStateVarLogger = PVLogger::GetLoggerObject("mp4ffparser_mediasamplestats"); |
| iParsedDataLogger = PVLogger::GetLoggerObject("mp4ffparser_parseddata"); |
| |
| uint32 count = size - DEFAULT_ATOM_SIZE; |
| if (_success) |
| { |
| PV_MP4_FF_NEW(fp->auditCB, trackFragmentRandomAccessAtomVecType, (), _pTrackFragmentRandomAccessAtomVec); |
| while (count > 0) |
| { |
| uint32 atomType = UNKNOWN_ATOM; |
| uint32 atomSize = 0; |
| AtomUtils::getNextAtomType(fp, atomSize, atomType); |
| |
| if (atomType == MOVIE_FRAGMENT_RANDOM_ACCESS_OFFSET_ATOM) |
| { |
| if (_pMfraOffsetAtom == NULL) |
| { |
| PV_MP4_FF_NEW(fp->auditCB, MfraOffsetAtom, (fp, atomSize, atomType), _pMfraOffsetAtom); |
| if (!_pMfraOffsetAtom->MP4Success()) |
| { |
| _success = false; |
| _mp4ErrorCode = READ_MOVIE_FRAGMENT_RANDOM_ACCESS_OFFSET_FAILED; |
| return; |
| } |
| count -= _pMfraOffsetAtom->getSize(); |
| } |
| else |
| { |
| //duplicate atom |
| count -= atomSize; |
| atomSize -= DEFAULT_ATOM_SIZE; |
| AtomUtils::seekFromCurrPos(fp, atomSize); |
| } |
| } |
| else if (atomType == TRACK_FRAGMENT_RANDOM_ACCESS_ATOM) |
| { |
| TrackFragmentRandomAccessAtom *pTrackFragmentRandomAccessAtom = NULL; |
| PV_MP4_FF_NEW(fp->auditCB, TrackFragmentRandomAccessAtom, (fp, atomSize, atomType), |
| pTrackFragmentRandomAccessAtom); |
| if (!pTrackFragmentRandomAccessAtom->MP4Success()) |
| { |
| PV_MP4_FF_DELETE(NULL, TrackFragmentRandomAccessAtom, pTrackFragmentRandomAccessAtom); |
| _success = false; |
| _mp4ErrorCode = READ_TRACK_FRAGMENT_RANDOM_ACCESS_ATOM_FAILED; |
| return; |
| } |
| count -= pTrackFragmentRandomAccessAtom->getSize(); |
| _pTrackFragmentRandomAccessAtomVec->push_back(pTrackFragmentRandomAccessAtom); |
| } |
| |
| } |
| } |
| else |
| { |
| _mp4ErrorCode = READ_MOVIE_FRAGMENT_RANDOM_ACCESS_ATOM_FAILED; |
| } |
| } |
| |
| MovieFragmentRandomAccessAtom::~MovieFragmentRandomAccessAtom() |
| { |
| if (_pMfraOffsetAtom != NULL) |
| { |
| PV_MP4_FF_DELETE(NULL, MfraOffsetAtom, _pMfraOffsetAtom); |
| } |
| |
| for (uint32 i = 0; i < _pTrackFragmentRandomAccessAtomVec->size(); i++) |
| { |
| PV_MP4_FF_DELETE(NULL, TrackFragmentRandomAccessAtom, (*_pTrackFragmentRandomAccessAtomVec)[i]); |
| } |
| PV_MP4_FF_TEMPLATED_DELETE(NULL, trackFragmentRandomAccessAtomVecType, Oscl_Vector, _pTrackFragmentRandomAccessAtomVec); |
| |
| } |
| |
| bool MovieFragmentRandomAccessAtom::IsTFRAPresentForTrack(uint32 trackID, bool oVideoAudioTextTrack) |
| { |
| |
| uint32 num_tfra = 0; |
| if (_pTrackFragmentRandomAccessAtomVec != NULL) |
| { |
| num_tfra = _pTrackFragmentRandomAccessAtomVec->size(); |
| for (uint32 idx = 0; idx < num_tfra; idx++) |
| { |
| TrackFragmentRandomAccessAtom *tfraAtom = (*_pTrackFragmentRandomAccessAtomVec)[idx]; |
| if (tfraAtom->getTrackID() == trackID) |
| { |
| if (tfraAtom->_entry_count > 0) |
| { |
| #if (DISABLE_REPOS_ON_CLIPS_HAVING_UNEQUAL_TFRA_ENTRY_COUNT) |
| if (oVideoAudioTextTrack) |
| { |
| oVideoAudioTextTrackTfraCount = tfraAtom->_entry_count; |
| // If oVideoAudioTextTrack flag is set we just store the entry count to be checked |
| // for other tracks. |
| return true; |
| } |
| else if (oVideoAudioTextTrackTfraCount == tfraAtom->_entry_count) |
| #else |
| OSCL_UNUSED_ARG(oVideoAudioTextTrack); |
| #endif // DISABLE_REPOS_ON_CLIPS_HAVING_UNEQUAL_TFRA_ENTRY_COUNT |
| { |
| return true; |
| } |
| } |
| } |
| } |
| } |
| return false; |
| |
| } |
| int32 MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime(uint32 trackID, uint32 &time, uint32 &moof_offset, |
| uint32 &traf_number, uint32 &trun_number, |
| uint32 &sample_num) |
| { |
| uint32 num_tfra = 0; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Input Time =%d", time)); |
| if (_pTrackFragmentRandomAccessAtomVec == NULL) |
| { |
| return -1; |
| }; |
| num_tfra = _pTrackFragmentRandomAccessAtomVec->size(); |
| for (uint32 idx = 0; idx < num_tfra; idx++) |
| { |
| TrackFragmentRandomAccessAtom *tfraAtom = (*_pTrackFragmentRandomAccessAtomVec)[idx]; |
| if (! tfraAtom) // (unlikely) |
| return -1; |
| if (tfraAtom->getTrackID() == trackID) |
| { |
| uint32 entries = tfraAtom->_entry_count; |
| if (entries == 0) |
| return -1; |
| |
| Oscl_Vector<TFRAEntries*, OsclMemAllocator>* tfraEntries = tfraAtom->getTrackFragmentRandomAccessEntries(); |
| if (!tfraEntries) // unlikely/error |
| return -1; |
| int32 prevTime = 0; |
| for (uint32 idy = 0; idy < entries; idy++) |
| { |
| if (time < (*tfraEntries)[idy]->getTimeStamp()) |
| { |
| uint32 tmp = (*tfraEntries)[idy]->getTimeStamp(); |
| uint32 diffwithbeforeTS = time - prevTime; |
| uint32 diffwithafterTS = tmp - time; |
| if (diffwithbeforeTS > diffwithafterTS) |
| { |
| time = tmp; |
| moof_offset = (*tfraEntries)[idy]->getTimeMoofOffset(); |
| traf_number = (*tfraEntries)[idy]->_traf_number; |
| trun_number = (*tfraEntries)[idy]->_trun_number; |
| sample_num = (*tfraEntries)[idy]->_sample_number; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Return Time =%d", time)); |
| return 0; |
| } |
| else |
| { |
| time = prevTime; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Return Time =%d", time)); |
| return 0; |
| } |
| } |
| moof_offset = (*tfraEntries)[idy]->getTimeMoofOffset(); |
| traf_number = (*tfraEntries)[idy]->_traf_number; |
| trun_number = (*tfraEntries)[idy]->_trun_number; |
| sample_num = (*tfraEntries)[idy]->_sample_number; |
| |
| prevTime = (*tfraEntries)[idy]->getTimeStamp(); |
| } |
| time = prevTime; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Return Time =%d", time)); |
| return 0; |
| } |
| } |
| |
| // error return if we get here. |
| return -1; |
| } |
| |
| int32 MovieFragmentRandomAccessAtom::queryRepositionTime(uint32 trackID, int32 time, bool oDependsOn, bool bBeforeRequestedTime) |
| { |
| OSCL_UNUSED_ARG(oDependsOn); |
| |
| uint32 num_tfra = 0; |
| int32 closestTime = 0; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Input Time =%d", time)); |
| if (_pTrackFragmentRandomAccessAtomVec != NULL) |
| { |
| num_tfra = _pTrackFragmentRandomAccessAtomVec->size(); |
| for (uint32 idx = 0; idx < num_tfra; idx++) |
| { |
| TrackFragmentRandomAccessAtom* tfraAtom = (*_pTrackFragmentRandomAccessAtomVec)[idx]; |
| if (tfraAtom->getTrackID() == trackID) |
| { |
| uint32 entries = tfraAtom->_entry_count; |
| Oscl_Vector<TFRAEntries*, OsclMemAllocator>* tfraEntries = tfraAtom->getTrackFragmentRandomAccessEntries(); |
| if (!tfraEntries) // unlikely/error |
| return closestTime; |
| int32 prevTime = 0; |
| for (uint32 idy = 0; idy < entries; idy++) |
| { |
| if (bBeforeRequestedTime) |
| { |
| if (time < (int32)(*tfraEntries)[idy]->getTimeStamp()) |
| { |
| time = prevTime; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Return Time =%d", time)); |
| break; |
| } |
| else if ((time == (int32)(*tfraEntries)[idy]->getTimeStamp()) || |
| ((idy == (entries - 1)) && (time > (int32)(*tfraEntries)[idy]->getTimeStamp()))) |
| { |
| time = (*tfraEntries)[idy]->getTimeStamp(); |
| break; |
| |
| } |
| prevTime = (*tfraEntries)[idy]->getTimeStamp(); |
| } |
| else |
| { |
| if (time <= (int32)(*tfraEntries)[idy]->getTimeStamp()) |
| { |
| time = (*tfraEntries)[idy]->getTimeStamp(); |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Return Time =%d", time)); |
| break; |
| } |
| else if ((idy == (entries - 1)) && (time > (int32)(*tfraEntries)[idy]->getTimeStamp())) |
| { |
| time = (*tfraEntries)[idy]->getTimeStamp(); |
| break; |
| |
| } |
| |
| prevTime = (*tfraEntries)[idy]->getTimeStamp(); |
| |
| } |
| } |
| closestTime = time; |
| PVMF_MP4FFPARSER_LOGMEDIASAMPELSTATEVARIABLES((0, "MovieFragmentRandomAccessAtom::getSyncSampleInfoClosestToTime Return Time =%d", time)); |
| return closestTime; |
| } |
| } |
| } |
| return closestTime; |
| } |
| |
| int32 MovieFragmentRandomAccessAtom::getTimestampForRandomAccessPoints(uint32 id, uint32 *num, uint32 *tsBuf, uint32* numBuf, uint32* offsetBuff, uint32 samplesFromMovie) |
| { |
| uint32 num_tfra = 0; |
| uint32 samplesfromMoov = samplesFromMovie; |
| TrackFragmentRandomAccessAtom *tfraAtom = NULL; |
| |
| if (_pTrackFragmentRandomAccessAtomVec != NULL) |
| { |
| num_tfra = _pTrackFragmentRandomAccessAtomVec->size(); |
| |
| for (uint32 idx = 0; idx < num_tfra; idx++) |
| { |
| tfraAtom = (*_pTrackFragmentRandomAccessAtomVec)[idx]; |
| if (tfraAtom->getTrackID() == id) |
| { |
| break; |
| } |
| } |
| } |
| if (tfraAtom != NULL) |
| { |
| uint32 entries = tfraAtom->_entry_count; |
| Oscl_Vector<TFRAEntries*, OsclMemAllocator>* tfraEntries = tfraAtom->getTrackFragmentRandomAccessEntries(); |
| if (!tfraEntries) // unlikely/error |
| return 0; |
| |
| |
| uint32 tmp = entries; |
| |
| if (*num == 0) |
| { |
| *num = tmp; |
| return 1; //success. This is only the query mode. |
| } |
| |
| uint32 sampleToBeRead = *num; |
| if (tmp < sampleToBeRead) |
| sampleToBeRead = tmp; |
| |
| for (uint32 idx = samplesfromMoov; idx < sampleToBeRead + samplesfromMoov; idx++) |
| { |
| //it may crash if this buffer is not big enough |
| if (tsBuf != NULL) |
| tsBuf[idx] = (*tfraEntries)[idx]->getTimeStamp(); |
| if (numBuf) |
| numBuf[idx] = (*tfraEntries)[idx]->_sample_number; |
| if (offsetBuff) |
| offsetBuff[idx] = (*tfraEntries)[idx]->getTimeMoofOffset(); |
| } |
| *num = sampleToBeRead + samplesfromMoov; |
| |
| return 1; //success |
| } |
| return 0; |
| } |
| |
| |
| int32 MovieFragmentRandomAccessAtom::getTimestampForRandomAccessPointsBeforeAfter(uint32 id, uint32 ts, uint32 *tsBuf, uint32* numBuf, |
| uint32& numsamplestoget, |
| uint32 howManyKeySamples) |
| { |
| uint32 num_tfra = 0, prevSampleNum = 0, sample_num = 0; |
| uint32 time = ts; |
| uint32 startIdx = 0, endIdx = 0; |
| |
| TrackFragmentRandomAccessAtom *tfraAtom = NULL; |
| if (_pTrackFragmentRandomAccessAtomVec != NULL) |
| { |
| num_tfra = _pTrackFragmentRandomAccessAtomVec->size(); |
| |
| for (uint32 idx = 0; idx < num_tfra; idx++) |
| { |
| tfraAtom = (*_pTrackFragmentRandomAccessAtomVec)[idx]; |
| if (tfraAtom != NULL) |
| { |
| if (tfraAtom->getTrackID() == id) |
| { |
| break; |
| } |
| } |
| } |
| } |
| if (tfraAtom != NULL) |
| { |
| uint32 entries = tfraAtom->_entry_count; |
| startIdx = entries; |
| endIdx = entries; |
| Oscl_Vector<TFRAEntries*, OsclMemAllocator>* tfraEntries = tfraAtom->getTrackFragmentRandomAccessEntries(); |
| if (!tfraEntries) // unlikely/error |
| return 0; |
| int32 prevTime = 0; |
| for (uint32 idy = 0; idy < entries; idy++) |
| { |
| if (time <= (*tfraEntries)[idy]->getTimeStamp()) |
| { |
| uint32 tmp = (*tfraEntries)[idy]->getTimeStamp(); |
| uint32 diffwithbeforeTS = time - prevTime; |
| uint32 diffwithafterTS = tmp - time; |
| if (diffwithbeforeTS > diffwithafterTS) |
| { |
| sample_num = (*tfraEntries)[idy]->_sample_number; |
| } |
| else |
| { |
| sample_num = prevSampleNum; |
| } |
| startIdx = idy; |
| endIdx = entries; |
| break; |
| } |
| prevSampleNum = (*tfraEntries)[idy]->_sample_number; |
| prevTime = (*tfraEntries)[idy]->getTimeStamp(); |
| } |
| if ((startIdx + howManyKeySamples) <= entries) |
| endIdx = startIdx + howManyKeySamples; |
| |
| if (startIdx > howManyKeySamples) |
| startIdx -= howManyKeySamples; |
| else |
| { |
| startIdx = 0; |
| } |
| |
| uint32 idx = 0; |
| uint32 k = 0; |
| for (idx = startIdx; idx < endIdx; idx++) |
| { |
| int32 keySampleNum = (*tfraEntries)[idx]->_sample_number; |
| int32 keySampleTS = (*tfraEntries)[idx]->getTimeStamp(); |
| numBuf[k] = keySampleNum; |
| tsBuf[k] = keySampleTS; |
| k++; |
| } |
| numsamplestoget = k; |
| } |
| else |
| return 0; |
| |
| return 1; //success |
| |
| } |
