| /* ------------------------------------------------------------------ |
| * Copyright (C) 2008 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. |
| * ------------------------------------------------------------------- |
| */ |
| /*********************************************************************************/ |
| /* |
| This PVA_FF_AudioSampleEntry Class is used for visual streams. |
| */ |
| |
| #define IMPLEMENT_AMRSampleEntry |
| |
| #include "amrsampleentry.h" |
| #include "atomutils.h" |
| #include "a_atomdefs.h" |
| |
| // Constructor |
| PVA_FF_AMRSampleEntry::PVA_FF_AMRSampleEntry() |
| : PVA_FF_SampleEntry(FourCharConstToUint32('s', 'a', 'm', 'r')) |
| { |
| init(); |
| recomputeSize(); |
| } |
| |
| // Destructor |
| PVA_FF_AMRSampleEntry::~PVA_FF_AMRSampleEntry() |
| { |
| PV_MP4_FF_DELETE(NULL, PVA_FF_AMRSpecificAtom, pAMRSpecificAtom); |
| } |
| |
| |
| void |
| PVA_FF_AMRSampleEntry::init() |
| { |
| _reserved1[0] = 0; |
| _reserved1[1] = 0; |
| |
| _reserved2 = 2; // = 2; |
| _reserved3 = 16; // = 16; |
| _reserved4 = 0; // = 0; |
| |
| _timeScale = 0; // Get it from the track |
| |
| _reserved5 = 0; // = 0; |
| |
| PV_MP4_FF_NEW(fp->auditCB, PVA_FF_AMRSpecificAtom, (), pAMRSpecificAtom); |
| |
| pAMRSpecificAtom->setVendorcode(); |
| pAMRSpecificAtom->setEncoderVersion(); |
| pAMRSpecificAtom->setModeChangePeriod(); |
| pAMRSpecificAtom->setFramesPerSample(1); |
| } |
| |
| // Rendering the PVA_FF_Atom in proper format (bitlengths, etc.) to an ostream |
| bool |
| PVA_FF_AMRSampleEntry::renderToFileStream(MP4_AUTHOR_FF_FILE_IO_WRAP *fp) |
| { |
| int32 rendered = 0; |
| |
| renderAtomBaseMembers(fp); |
| rendered += getDefaultSize(); |
| |
| // From PVA_FF_SampleEntry base class |
| for (int32 i = 0; i < 6; i++) |
| { |
| if (!PVA_FF_AtomUtils::render8(fp, _reserved[i])) |
| { |
| return false; |
| } |
| rendered += 1; |
| } |
| |
| if (!PVA_FF_AtomUtils::render16(fp, _dataReferenceIndex)) |
| { |
| return false; |
| } |
| |
| if (!PVA_FF_AtomUtils::render32(fp, _reserved1[0])) |
| { |
| return false; |
| } |
| |
| if (!PVA_FF_AtomUtils::render32(fp, _reserved1[1])) |
| { |
| return false; |
| } |
| rendered += 8; |
| |
| if (!PVA_FF_AtomUtils::render16(fp, _reserved2)) |
| { |
| return false; |
| } |
| if (!PVA_FF_AtomUtils::render16(fp, _reserved3)) |
| { |
| return false; |
| } |
| if (!PVA_FF_AtomUtils::render32(fp, _reserved4)) |
| { |
| return false; |
| } |
| rendered += 8; |
| |
| if (!PVA_FF_AtomUtils::render16(fp, _timeScale)) |
| { |
| return false; |
| } |
| rendered += 2; |
| |
| if (!PVA_FF_AtomUtils::render16(fp, _reserved5)) |
| { |
| return false; |
| } |
| rendered += 2; |
| |
| if (!pAMRSpecificAtom->renderToFileStream(fp)) |
| { |
| return false; |
| } |
| rendered += pAMRSpecificAtom->getSize(); |
| |
| return true; |
| } |
| |
| void |
| PVA_FF_AMRSampleEntry::recomputeSize() |
| { |
| int32 size = getDefaultSize(); |
| |
| size += 8; // For reserved and dataRefIndex of PVA_FF_SampleEntry base class |
| |
| size += 16; // For reserved1 - reserved4 |
| size += 2; // For timescale |
| size += 2; // For reserved5 |
| size += pAMRSpecificAtom->getSize(); |
| |
| _size = size; |
| |
| if (_pparent != NULL) |
| { |
| _pparent->recomputeSize(); |
| } |
| } |
| |
| |
| |
| |