mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-11-15 02:14:54 -05:00
263 lines
7.5 KiB
C++
263 lines
7.5 KiB
C++
/*
|
|
* The contents of this file are subject to the Mozilla Public
|
|
* License Version 1.1 (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.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is MPEG4IP.
|
|
*
|
|
* The Initial Developer of the Original Code is Cisco Systems Inc.
|
|
* Portions created by Cisco Systems Inc. are
|
|
* Copyright (C) Cisco Systems Inc. 2001 - 2004. All Rights Reserved.
|
|
*
|
|
* 3GPP features implementation is based on 3GPP's TS26.234-v5.60,
|
|
* and was contributed by Ximpo Group Ltd.
|
|
*
|
|
* Portions created by Ximpo Group Ltd. are
|
|
* Copyright (C) Ximpo Group Ltd. 2003, 2004. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Dave Mackie dmackie@cisco.com
|
|
* Ximpo Group Ltd. mp4v2@ximpo.com
|
|
*/
|
|
|
|
#ifndef __MP4_TRACK_INCLUDED__
|
|
#define __MP4_TRACK_INCLUDED__
|
|
|
|
#include "mp4property.h"
|
|
// forward declarations
|
|
class MP4File;
|
|
class MP4Atom;
|
|
class MP4Property;
|
|
class MP4StringProperty;
|
|
|
|
class MP4Track {
|
|
public:
|
|
MP4Track(MP4File* pFile, MP4Atom* pTrakAtom);
|
|
|
|
virtual ~MP4Track();
|
|
|
|
MP4TrackId GetId() {
|
|
return m_trackId;
|
|
}
|
|
|
|
const char* GetType();
|
|
|
|
void SetType(const char* type);
|
|
|
|
MP4File* GetFile() {
|
|
return m_pFile;
|
|
}
|
|
|
|
MP4Atom* GetTrakAtom() {
|
|
return m_pTrakAtom;
|
|
}
|
|
|
|
void ReadSample(
|
|
// input parameters
|
|
MP4SampleId sampleId,
|
|
// output parameters
|
|
u_int8_t** ppBytes,
|
|
u_int32_t* pNumBytes,
|
|
MP4Timestamp* pStartTime = NULL,
|
|
MP4Duration* pDuration = NULL,
|
|
MP4Duration* pRenderingOffset = NULL,
|
|
bool* pIsSyncSample = NULL);
|
|
|
|
void WriteSample(
|
|
const u_int8_t* pBytes,
|
|
u_int32_t numBytes,
|
|
MP4Duration duration = 0,
|
|
MP4Duration renderingOffset = 0,
|
|
bool isSyncSample = true);
|
|
|
|
virtual void FinishWrite();
|
|
|
|
u_int64_t GetDuration(); // in track timeScale units
|
|
u_int32_t GetTimeScale();
|
|
u_int32_t GetNumberOfSamples();
|
|
u_int32_t GetSampleSize(MP4SampleId sampleId);
|
|
u_int32_t GetMaxSampleSize();
|
|
u_int64_t GetTotalOfSampleSizes();
|
|
u_int32_t GetAvgBitrate(); // in bps
|
|
u_int32_t GetMaxBitrate(); // in bps
|
|
|
|
MP4Duration GetFixedSampleDuration();
|
|
void SetFixedSampleDuration(MP4Duration duration);
|
|
|
|
void GetSampleTimes(MP4SampleId sampleId,
|
|
MP4Timestamp* pStartTime, MP4Duration* pDuration);
|
|
|
|
bool IsSyncSample(MP4SampleId sampleId);
|
|
|
|
MP4SampleId GetSampleIdFromTime(
|
|
MP4Timestamp when,
|
|
bool wantSyncSample = false,
|
|
bool rewind = false);
|
|
|
|
MP4ChunkId GetChunkIdFromTime(MP4Timestamp when);
|
|
|
|
MP4Duration GetSampleRenderingOffset(MP4SampleId sampleId);
|
|
void SetSampleRenderingOffset(MP4SampleId sampleId,
|
|
MP4Duration renderingOffset);
|
|
|
|
MP4EditId AddEdit(
|
|
MP4EditId editId = MP4_INVALID_EDIT_ID);
|
|
|
|
void DeleteEdit(
|
|
MP4EditId editId);
|
|
|
|
MP4Timestamp GetEditStart(
|
|
MP4EditId editId);
|
|
|
|
MP4Timestamp GetEditTotalDuration(
|
|
MP4EditId editId);
|
|
|
|
MP4SampleId GetSampleIdFromEditTime(
|
|
MP4Timestamp editWhen,
|
|
MP4Timestamp* pStartTime = NULL,
|
|
MP4Duration* pDuration = NULL);
|
|
|
|
// special operation for use during hint track packet assembly
|
|
void ReadSampleFragment(
|
|
MP4SampleId sampleId,
|
|
u_int32_t sampleOffset,
|
|
u_int16_t sampleLength,
|
|
u_int8_t* pDest);
|
|
|
|
// special operations for use during optimization
|
|
|
|
u_int32_t GetNumberOfChunks();
|
|
|
|
MP4Timestamp GetChunkTime(MP4ChunkId chunkId);
|
|
|
|
void ReadChunk(MP4ChunkId chunkId,
|
|
u_int8_t** ppChunk, u_int32_t* pChunkSize,
|
|
MP4Timestamp* pStartTime = NULL,
|
|
MP4Duration* pDuration = NULL);
|
|
|
|
void RewriteChunk(MP4ChunkId chunkId,
|
|
u_int8_t* pChunk, u_int32_t chunkSize);
|
|
|
|
protected:
|
|
bool InitEditListProperties();
|
|
|
|
FILE* GetSampleFile(MP4SampleId sampleId);
|
|
u_int64_t GetSampleFileOffset(MP4SampleId sampleId);
|
|
u_int32_t GetSampleStscIndex(MP4SampleId sampleId);
|
|
u_int32_t GetChunkStscIndex(MP4ChunkId chunkId);
|
|
u_int32_t GetChunkSize(MP4ChunkId chunkId);
|
|
u_int32_t GetSampleCttsIndex(MP4SampleId sampleId,
|
|
MP4SampleId* pFirstSampleId = NULL);
|
|
MP4SampleId GetNextSyncSample(MP4SampleId sampleId);
|
|
MP4SampleId GetSyncSample(MP4SampleId sampleId, bool rewind = false);
|
|
|
|
void UpdateSampleSizes(MP4SampleId sampleId,
|
|
u_int32_t numBytes);
|
|
bool IsChunkFull(MP4SampleId sampleId);
|
|
void UpdateSampleToChunk(MP4SampleId sampleId,
|
|
MP4ChunkId chunkId, u_int32_t samplesPerChunk);
|
|
void UpdateChunkOffsets(u_int64_t chunkOffset);
|
|
void UpdateSampleTimes(MP4Duration duration);
|
|
void UpdateRenderingOffsets(MP4SampleId sampleId,
|
|
MP4Duration renderingOffset);
|
|
void UpdateSyncSamples(MP4SampleId sampleId,
|
|
bool isSyncSample);
|
|
|
|
MP4Atom* AddAtom(char* parentName, char* childName);
|
|
|
|
void UpdateDurations(MP4Duration duration);
|
|
MP4Duration ToMovieDuration(MP4Duration trackDuration);
|
|
|
|
void UpdateModificationTimes();
|
|
|
|
void WriteChunkBuffer();
|
|
|
|
void CalculateBytesPerSample();
|
|
protected:
|
|
MP4File* m_pFile;
|
|
MP4Atom* m_pTrakAtom; // moov.trak[]
|
|
MP4TrackId m_trackId; // moov.trak[].tkhd.trackId
|
|
MP4StringProperty* m_pTypeProperty; // moov.trak[].mdia.hdlr.handlerType
|
|
|
|
u_int32_t m_lastStsdIndex;
|
|
FILE* m_lastSampleFile;
|
|
|
|
// for efficient construction of hint track packets
|
|
MP4SampleId m_cachedReadSampleId;
|
|
u_int8_t* m_pCachedReadSample;
|
|
u_int32_t m_cachedReadSampleSize;
|
|
|
|
// for writing
|
|
MP4SampleId m_writeSampleId;
|
|
MP4Duration m_fixedSampleDuration;
|
|
u_int8_t* m_pChunkBuffer;
|
|
u_int32_t m_chunkBufferSize;
|
|
u_int32_t m_chunkSamples;
|
|
MP4Duration m_chunkDuration;
|
|
|
|
// controls for chunking
|
|
u_int32_t m_samplesPerChunk;
|
|
MP4Duration m_durationPerChunk;
|
|
|
|
u_int32_t m_bytesPerSample;
|
|
|
|
// controls for AMR chunking
|
|
int m_isAmr;
|
|
u_int8_t m_curMode;
|
|
|
|
MP4Integer32Property* m_pTimeScaleProperty;
|
|
MP4IntegerProperty* m_pTrackDurationProperty; // 32 or 64 bits
|
|
MP4IntegerProperty* m_pMediaDurationProperty; // 32 or 64 bits
|
|
MP4IntegerProperty* m_pTrackModificationProperty; // 32 or 64 bits
|
|
MP4IntegerProperty* m_pMediaModificationProperty; // 32 or 64 bits
|
|
|
|
MP4Integer32Property* m_pStszFixedSampleSizeProperty;
|
|
MP4Integer32Property* m_pStszSampleCountProperty;
|
|
|
|
void SampleSizePropertyAddValue(uint32_t bytes);
|
|
uint8_t m_stsz_sample_bits;
|
|
bool m_have_stz2_4bit_sample;
|
|
uint8_t m_stz2_4bit_sample_value;
|
|
MP4IntegerProperty* m_pStszSampleSizeProperty;
|
|
|
|
MP4Integer32Property* m_pStscCountProperty;
|
|
MP4Integer32Property* m_pStscFirstChunkProperty;
|
|
MP4Integer32Property* m_pStscSamplesPerChunkProperty;
|
|
MP4Integer32Property* m_pStscSampleDescrIndexProperty;
|
|
MP4Integer32Property* m_pStscFirstSampleProperty;
|
|
|
|
MP4Integer32Property* m_pChunkCountProperty;
|
|
MP4IntegerProperty* m_pChunkOffsetProperty; // 32 or 64 bits
|
|
|
|
MP4Integer32Property* m_pSttsCountProperty;
|
|
MP4Integer32Property* m_pSttsSampleCountProperty;
|
|
MP4Integer32Property* m_pSttsSampleDeltaProperty;
|
|
|
|
// for improve sequental timestamp index access
|
|
u_int32_t m_cachedSttsIndex;
|
|
MP4SampleId m_cachedSttsSid;
|
|
MP4Timestamp m_cachedSttsElapsed;
|
|
|
|
MP4Integer32Property* m_pCttsCountProperty;
|
|
MP4Integer32Property* m_pCttsSampleCountProperty;
|
|
MP4Integer32Property* m_pCttsSampleOffsetProperty;
|
|
|
|
MP4Integer32Property* m_pStssCountProperty;
|
|
MP4Integer32Property* m_pStssSampleProperty;
|
|
|
|
MP4Integer32Property* m_pElstCountProperty;
|
|
MP4IntegerProperty* m_pElstMediaTimeProperty; // 32 or 64 bits
|
|
MP4IntegerProperty* m_pElstDurationProperty; // 32 or 64 bits
|
|
MP4Integer16Property* m_pElstRateProperty;
|
|
MP4Integer16Property* m_pElstReservedProperty;
|
|
};
|
|
|
|
MP4ARRAY_DECL(MP4Track, MP4Track*);
|
|
|
|
#endif /* __MP4_TRACK_INCLUDED__ */
|