| /* ------------------------------------------------------------------ |
| * 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. |
| * ------------------------------------------------------------------- |
| */ |
| #define IMPLEMENT_TrackFragmentAtom |
| |
| #include "trackfragmentatom.h" |
| #include "trackfragmentrunatom.h" |
| typedef Oscl_Vector<uint32, OsclMemAllocator> uint32VecType; |
| typedef Oscl_Vector<uint8, OsclMemAllocator> uint8VecType; |
| |
| |
| typedef Oscl_Vector <PVA_FF_TrackFragmentRunAtom*, OsclMemAllocator> |
| PVA_FF_TrackFragmentRunAtomVecType; |
| |
| // constructor |
| PVA_FF_TrackFragmentAtom::PVA_FF_TrackFragmentAtom(uint32 mediaType, |
| uint32 codecType, |
| uint32 trackId, |
| uint32 interleaveDuration, |
| uint32 timescale) |
| : PVA_FF_Atom(TRACK_FRAGMENT_ATOM) |
| { |
| _mediaType = mediaType; |
| _codecType = codecType; |
| |
| // no interleaving flag, as movie fragments are there in interleaving mode |
| _timescale = timescale; |
| _firstEntry = true; |
| _prevTS = 0; |
| _interleaveDuration = interleaveDuration; |
| _fragmentDuration = 0; |
| _ofirstTrun = true; |
| |
| // intialise track fragment header atom |
| PV_MP4_FF_NEW(fp->auditCB, PVA_FF_TrackFragmentHeaderAtom, (trackId), _pTfhdAtom); |
| |
| // initialise track run vector |
| PV_MP4_FF_NEW(fp->auditCB, PVA_FF_TrackFragmentRunAtomVecType, (), _pTrunList); |
| |
| recomputeSize(); |
| |
| } |
| |
| |
| //destructor |
| PVA_FF_TrackFragmentAtom::~PVA_FF_TrackFragmentAtom() |
| { |
| // delete track fragment header |
| PV_MP4_FF_DELETE(NULL, PVA_FF_TrackFragmentHeaderAtom, _pTfhdAtom); |
| |
| // Delete trum atom list |
| for (uint32 ii = 0; ii < _pTrunList->size(); ii++) |
| { |
| PV_MP4_FF_DELETE(NULL, PVA_FF_TrackFragmentRunAtom, (*_pTrunList)[ii]); |
| } |
| PV_MP4_FF_TEMPLATED_DELETE(NULL, PVA_FF_TrackFragmentRunAtomVecType, |
| Oscl_Vector, _pTrunList); |
| |
| } |
| |
| |
| // add new TRUN in the list |
| PVA_FF_TrackFragmentRunAtom* |
| PVA_FF_TrackFragmentAtom::addTrackRun() |
| { |
| PVA_FF_TrackFragmentRunAtom *pTrunAtom; |
| |
| PV_MP4_FF_NEW(fp->auditCB, PVA_FF_TrackFragmentRunAtom, (), pTrunAtom); |
| |
| _pTrunList->push_back(pTrunAtom); |
| pTrunAtom->setParent(this); |
| |
| recomputeSize(); |
| |
| return pTrunAtom; |
| } |
| |
| |
| // add new sample into track fragment inturn into TRUN |
| void |
| PVA_FF_TrackFragmentAtom::addSampleToFragment(uint32 size, uint32 ts, uint8 flags, |
| uint32 baseOffset, bool otrunStart) |
| { |
| |
| if (otrunStart == false) |
| { |
| // add sample to current Trun |
| PVA_FF_TrackFragmentRunAtom* pTrunAtom; |
| pTrunAtom = _pTrunList->back(); |
| |
| pTrunAtom->addSample(size, ts, flags); |
| } |
| else |
| { |
| // make new trun |
| PVA_FF_TrackFragmentRunAtom* pTrunAtom = addTrackRun(); |
| |
| if (_ofirstTrun) |
| { |
| _ofirstTrun = false; |
| setTrackFragmentBaseDataOffset(baseOffset); |
| pTrunAtom->setDataOffset(0); |
| } |
| else |
| { |
| uint32 offset = _pTfhdAtom->getBaseDataOffset(); |
| |
| pTrunAtom->setDataOffset(baseOffset - offset); |
| } |
| pTrunAtom->addSample(size, ts, flags); |
| } |
| |
| // update track fragment duration |
| if (_firstEntry) |
| { |
| _firstEntry = false; |
| _prevTS = ts; |
| } |
| else |
| { |
| uint32 delta = ts - _prevTS; |
| _prevTS = ts; |
| _fragmentDuration = _fragmentDuration + (uint32)((1000.0f / _timescale) * delta + 0.5f); |
| } |
| |
| } |
| |
| |
| void |
| PVA_FF_TrackFragmentAtom::setTrackFragmentHeaderData(uint32 flags) |
| { |
| |
| // currently default headers are there, this function arguments will be defined later |
| OSCL_UNUSED_ARG(flags); |
| _pTfhdAtom->setHeaderData(); |
| |
| } |
| |
| |
| // set base data offset of track fragment |
| void |
| PVA_FF_TrackFragmentAtom::setTrackFragmentBaseDataOffset(uint64 offset) |
| { |
| _pTfhdAtom->setBaseDataOffset(offset); |
| } |
| |
| |
| // recompute size of atom |
| void |
| PVA_FF_TrackFragmentAtom::recomputeSize() |
| { |
| int32 size = getDefaultSize(); |
| |
| // add size of tfhd atom |
| size += _pTfhdAtom->getSize(); |
| |
| // add size of Track run atoms |
| if (_pTrunList->size() != 0) |
| { |
| for (uint32 ii = 0; ii < _pTrunList->size(); ii++) |
| { |
| size += ((*_pTrunList)[ii])->getSize(); |
| } |
| } |
| |
| _size = size; |
| |
| // Update the parent atom size |
| if (_pparent != NULL) |
| { |
| _pparent->recomputeSize(); |
| } |
| } |
| |
| |
| // get functions |
| uint32 |
| PVA_FF_TrackFragmentAtom::getTrackId() |
| { |
| |
| return _pTfhdAtom->getTrackId(); |
| } |
| |
| uint32 |
| PVA_FF_TrackFragmentAtom::getFragmentDuration() |
| { |
| |
| return _fragmentDuration; |
| } |
| |
| uint32 |
| PVA_FF_TrackFragmentAtom::getTrunNumber() |
| { |
| return _pTrunList->size(); |
| } |
| |
| |
| // updates the duration of last sample in TRUN |
| void |
| PVA_FF_TrackFragmentAtom::updateLastTSEntry(uint32 ts) |
| { |
| int32 size = _pTrunList->size(); |
| |
| if (size > 0) |
| { |
| (*_pTrunList)[size -1]->updateLastTSEntry(ts); |
| } |
| return; |
| } |
| |
| // write atom to target file |
| bool |
| PVA_FF_TrackFragmentAtom::renderToFileStream(MP4_AUTHOR_FF_FILE_IO_WRAP* fp) |
| { |
| uint32 rendered = 0; |
| |
| if (!renderAtomBaseMembers(fp)) |
| { |
| return false; |
| } |
| rendered += getDefaultSize(); |
| |
| // Render the movie fragment header atom |
| if (!_pTfhdAtom->renderToFileStream(fp)) |
| { |
| return false; |
| } |
| rendered += _pTfhdAtom->getSize(); |
| |
| |
| // render track extend atoms |
| if (_pTrunList->size() != 0) |
| { |
| for (uint32 ii = 0; ii < _pTrunList->size(); ii++) |
| { |
| if (!((*_pTrunList)[ii])->renderToFileStream(fp)) |
| { |
| return false; |
| } |
| rendered += ((*_pTrunList)[ii])->getSize(); |
| } |
| } |
| |
| return true; |
| } |