changed headers for license
Change-Id: Ie09fd98548a9c3300a523b40f83d42c3de13e1c3
This commit is contained in:
parent
8ccdd10ad8
commit
0a8911b74c
6223
mkvparser.cpp
6223
mkvparser.cpp
File diff suppressed because it is too large
Load Diff
867
mkvparser.hpp
867
mkvparser.hpp
@ -1,433 +1,434 @@
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license and patent
|
||||
// grant that can be found in the LICENSE file in the root of the source
|
||||
// tree. All contributing project authors may be found in the AUTHORS
|
||||
// file in the root of the source tree.
|
||||
|
||||
#ifndef MKVPARSER_HPP
|
||||
#define MKVPARSER_HPP
|
||||
|
||||
#include <cstdlib>
|
||||
#include <cstdio>
|
||||
|
||||
namespace mkvparser
|
||||
{
|
||||
|
||||
const int E_FILE_FORMAT_INVALID = -2;
|
||||
const int E_BUFFER_NOT_FULL = -3;
|
||||
|
||||
class IMkvReader
|
||||
{
|
||||
public:
|
||||
virtual int Read(long long position, long length, unsigned char* buffer) = 0;
|
||||
virtual int Length(long long* total, long long* available) = 0;
|
||||
protected:
|
||||
virtual ~IMkvReader();
|
||||
};
|
||||
|
||||
long long GetUIntLength(IMkvReader*, long long, long&);
|
||||
long long ReadUInt(IMkvReader*, long long, long&);
|
||||
long long SyncReadUInt(IMkvReader*, long long pos, long long stop, long&);
|
||||
long long UnserializeUInt(IMkvReader*, long long pos, long long size);
|
||||
float Unserialize4Float(IMkvReader*, long long);
|
||||
double Unserialize8Double(IMkvReader*, long long);
|
||||
short Unserialize2SInt(IMkvReader*, long long);
|
||||
signed char Unserialize1SInt(IMkvReader*, long long);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, long long&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, char*&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long,unsigned char*&, size_t&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, double&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, short&);
|
||||
|
||||
|
||||
struct EBMLHeader
|
||||
{
|
||||
EBMLHeader();
|
||||
~EBMLHeader();
|
||||
long long m_version;
|
||||
long long m_readVersion;
|
||||
long long m_maxIdLength;
|
||||
long long m_maxSizeLength;
|
||||
char* m_docType;
|
||||
long long m_docTypeVersion;
|
||||
long long m_docTypeReadVersion;
|
||||
|
||||
long long Parse(IMkvReader*, long long&);
|
||||
};
|
||||
|
||||
|
||||
class Segment;
|
||||
class Track;
|
||||
class Cluster;
|
||||
|
||||
class Block
|
||||
{
|
||||
Block(const Block&);
|
||||
Block& operator=(const Block&);
|
||||
|
||||
public:
|
||||
const long long m_start;
|
||||
const long long m_size;
|
||||
|
||||
Block(long long start, long long size, IMkvReader*);
|
||||
|
||||
unsigned long GetTrackNumber() const;
|
||||
|
||||
long long GetTimeCode(Cluster*) const; //absolute, but not scaled
|
||||
long long GetTime(Cluster*) const; //absolute, and scaled (nanosecond units)
|
||||
bool IsKey() const;
|
||||
void SetKey(bool);
|
||||
|
||||
long GetSize() const;
|
||||
long Read(IMkvReader*, unsigned char*) const;
|
||||
|
||||
private:
|
||||
long long m_track; //Track::Number()
|
||||
short m_timecode; //relative to cluster
|
||||
unsigned char m_flags;
|
||||
long long m_frameOff;
|
||||
long m_frameSize;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class BlockEntry
|
||||
{
|
||||
BlockEntry(const BlockEntry&);
|
||||
BlockEntry& operator=(const BlockEntry&);
|
||||
|
||||
public:
|
||||
virtual ~BlockEntry();
|
||||
virtual bool EOS() const = 0;
|
||||
virtual Cluster* GetCluster() const = 0;
|
||||
virtual size_t GetIndex() const = 0;
|
||||
virtual const Block* GetBlock() const = 0;
|
||||
virtual bool IsBFrame() const = 0;
|
||||
|
||||
protected:
|
||||
BlockEntry();
|
||||
|
||||
};
|
||||
|
||||
|
||||
class SimpleBlock : public BlockEntry
|
||||
{
|
||||
SimpleBlock(const SimpleBlock&);
|
||||
SimpleBlock& operator=(const SimpleBlock&);
|
||||
|
||||
public:
|
||||
SimpleBlock(Cluster*, size_t, long long start, long long size);
|
||||
|
||||
bool EOS() const;
|
||||
Cluster* GetCluster() const;
|
||||
size_t GetIndex() const;
|
||||
const Block* GetBlock() const;
|
||||
bool IsBFrame() const;
|
||||
|
||||
protected:
|
||||
Cluster* const m_pCluster;
|
||||
const size_t m_index;
|
||||
Block m_block;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class BlockGroup : public BlockEntry
|
||||
{
|
||||
BlockGroup(const BlockGroup&);
|
||||
BlockGroup& operator=(const BlockGroup&);
|
||||
|
||||
public:
|
||||
BlockGroup(Cluster*, size_t, long long, long long);
|
||||
~BlockGroup();
|
||||
|
||||
bool EOS() const;
|
||||
Cluster* GetCluster() const;
|
||||
size_t GetIndex() const;
|
||||
const Block* GetBlock() const;
|
||||
bool IsBFrame() const;
|
||||
|
||||
short GetPrevTimeCode() const; //relative to block's time
|
||||
short GetNextTimeCode() const; //as above
|
||||
|
||||
protected:
|
||||
Cluster* const m_pCluster;
|
||||
const size_t m_index;
|
||||
|
||||
private:
|
||||
BlockGroup(Cluster*, size_t, unsigned long);
|
||||
void ParseBlock(long long start, long long size);
|
||||
|
||||
short m_prevTimeCode;
|
||||
short m_nextTimeCode;
|
||||
|
||||
//TODO: the Matroska spec says you can have multiple blocks within the
|
||||
//same block group, with blocks ranked by priority (the flag bits).
|
||||
//For now we just cache a single block.
|
||||
#if 0
|
||||
typedef std::deque<Block*> blocks_t;
|
||||
blocks_t m_blocks; //In practice should contain only a single element.
|
||||
#else
|
||||
Block* m_pBlock;
|
||||
#endif
|
||||
|
||||
};
|
||||
|
||||
|
||||
class Track
|
||||
{
|
||||
Track(const Track&);
|
||||
Track& operator=(const Track&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
virtual ~Track();
|
||||
|
||||
long long GetType() const;
|
||||
unsigned long GetNumber() const;
|
||||
const char* GetNameAsUTF8() const;
|
||||
const char* GetCodecNameAsUTF8() const;
|
||||
const char* GetCodecId() const;
|
||||
const unsigned char* GetCodecPrivate(size_t&) const;
|
||||
|
||||
const BlockEntry* GetEOS() const;
|
||||
|
||||
struct Settings
|
||||
{
|
||||
long long start;
|
||||
long long size;
|
||||
};
|
||||
|
||||
struct Info
|
||||
{
|
||||
long long type;
|
||||
long long number;
|
||||
long long uid;
|
||||
char* nameAsUTF8;
|
||||
char* codecId;
|
||||
unsigned char* codecPrivate;
|
||||
size_t codecPrivateSize;
|
||||
char* codecNameAsUTF8;
|
||||
Settings settings;
|
||||
Info();
|
||||
void Clear();
|
||||
};
|
||||
|
||||
long GetFirst(const BlockEntry*&) const;
|
||||
long GetNext(const BlockEntry* pCurr, const BlockEntry*& pNext) const;
|
||||
virtual bool VetEntry(const BlockEntry*) const = 0;
|
||||
|
||||
protected:
|
||||
Track(Segment*, const Info&);
|
||||
const Info m_info;
|
||||
|
||||
class EOSBlock : public BlockEntry
|
||||
{
|
||||
public:
|
||||
EOSBlock();
|
||||
|
||||
bool EOS() const;
|
||||
Cluster* GetCluster() const;
|
||||
size_t GetIndex() const;
|
||||
const Block* GetBlock() const;
|
||||
bool IsBFrame() const;
|
||||
};
|
||||
|
||||
EOSBlock m_eos;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class VideoTrack : public Track
|
||||
{
|
||||
VideoTrack(const VideoTrack&);
|
||||
VideoTrack& operator=(const VideoTrack&);
|
||||
|
||||
public:
|
||||
VideoTrack(Segment*, const Info&);
|
||||
long long GetWidth() const;
|
||||
long long GetHeight() const;
|
||||
double GetFrameRate() const;
|
||||
|
||||
bool VetEntry(const BlockEntry*) const;
|
||||
|
||||
private:
|
||||
long long m_width;
|
||||
long long m_height;
|
||||
double m_rate;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class AudioTrack : public Track
|
||||
{
|
||||
AudioTrack(const AudioTrack&);
|
||||
AudioTrack& operator=(const AudioTrack&);
|
||||
|
||||
public:
|
||||
AudioTrack(Segment*, const Info&);
|
||||
double GetSamplingRate() const;
|
||||
long long GetChannels() const;
|
||||
long long GetBitDepth() const;
|
||||
bool VetEntry(const BlockEntry*) const;
|
||||
|
||||
private:
|
||||
double m_rate;
|
||||
long long m_channels;
|
||||
long long m_bitDepth;
|
||||
};
|
||||
|
||||
|
||||
class Tracks
|
||||
{
|
||||
Tracks(const Tracks&);
|
||||
Tracks& operator=(const Tracks&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
const long long m_start;
|
||||
const long long m_size;
|
||||
|
||||
Tracks(Segment*, long long start, long long size);
|
||||
virtual ~Tracks();
|
||||
|
||||
Track* GetTrackByNumber(unsigned long tn) const;
|
||||
Track* GetTrackByIndex(unsigned long idx) const;
|
||||
|
||||
private:
|
||||
Track** m_trackEntries;
|
||||
Track** m_trackEntriesEnd;
|
||||
|
||||
void ParseTrackEntry(long long, long long, Track*&);
|
||||
|
||||
public:
|
||||
unsigned long GetTracksCount() const;
|
||||
};
|
||||
|
||||
|
||||
class SegmentInfo
|
||||
{
|
||||
SegmentInfo(const SegmentInfo&);
|
||||
SegmentInfo& operator=(const SegmentInfo&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
const long long m_start;
|
||||
const long long m_size;
|
||||
|
||||
SegmentInfo(Segment*, long long start, long long size);
|
||||
~SegmentInfo();
|
||||
long long GetTimeCodeScale() const;
|
||||
long long GetDuration() const; //scaled
|
||||
const char* GetMuxingAppAsUTF8() const;
|
||||
const char* GetWritingAppAsUTF8() const;
|
||||
const char* GetTitleAsUTF8() const;
|
||||
|
||||
private:
|
||||
long long m_timecodeScale;
|
||||
double m_duration;
|
||||
char* m_pMuxingAppAsUTF8;
|
||||
char* m_pWritingAppAsUTF8;
|
||||
char* m_pTitleAsUTF8;
|
||||
};
|
||||
|
||||
|
||||
class Cluster
|
||||
{
|
||||
Cluster(const Cluster&);
|
||||
Cluster& operator=(const Cluster&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
const size_t m_index;
|
||||
|
||||
public:
|
||||
static Cluster* Parse(Segment*, size_t, long long off);
|
||||
|
||||
Cluster(); //EndOfStream
|
||||
~Cluster();
|
||||
|
||||
bool EOS() const;
|
||||
|
||||
long long GetTimeCode(); //absolute, but not scaled
|
||||
long long GetTime(); //absolute, and scaled (nanosecond units)
|
||||
|
||||
const BlockEntry* GetFirst();
|
||||
const BlockEntry* GetLast();
|
||||
const BlockEntry* GetNext(const BlockEntry*) const;
|
||||
const BlockEntry* GetEntry(const Track*);
|
||||
protected:
|
||||
Cluster(Segment*, size_t, long long off);
|
||||
|
||||
private:
|
||||
long long m_start;
|
||||
long long m_size;
|
||||
long long m_timecode;
|
||||
BlockEntry** m_pEntries;
|
||||
size_t m_entriesCount;
|
||||
|
||||
void Load();
|
||||
void LoadBlockEntries();
|
||||
void ParseBlockGroup(long long, long long, size_t);
|
||||
void ParseSimpleBlock(long long, long long, size_t);
|
||||
|
||||
};
|
||||
|
||||
|
||||
class Segment
|
||||
{
|
||||
Segment(const Segment&);
|
||||
Segment& operator=(const Segment&);
|
||||
|
||||
private:
|
||||
Segment(IMkvReader*, long long pos, long long size);
|
||||
|
||||
public:
|
||||
IMkvReader* const m_pReader;
|
||||
const long long m_start; //posn of segment payload
|
||||
const long long m_size; //size of segment payload
|
||||
Cluster m_eos; //TODO: make private?
|
||||
|
||||
static long long CreateInstance(IMkvReader*, long long, Segment*&);
|
||||
~Segment();
|
||||
|
||||
//for big-bang loading (source filter)
|
||||
long Load();
|
||||
|
||||
//for incremental loading (splitter)
|
||||
long long Unparsed() const;
|
||||
long long ParseHeaders();
|
||||
long ParseCluster(Cluster*&, long long& newpos) const;
|
||||
bool AddCluster(Cluster*, long long);
|
||||
|
||||
Tracks* GetTracks() const;
|
||||
const SegmentInfo* const GetInfo() const;
|
||||
long long GetDuration() const;
|
||||
|
||||
//NOTE: this turned out to be too inefficient.
|
||||
//long long Load(long long time_nanoseconds);
|
||||
|
||||
Cluster* GetFirst();
|
||||
Cluster* GetLast();
|
||||
unsigned long GetCount() const;
|
||||
|
||||
Cluster* GetNext(const Cluster*);
|
||||
Cluster* GetCluster(long long time_nanoseconds);
|
||||
|
||||
private:
|
||||
long long m_pos; //absolute file posn; what has been consumed so far
|
||||
SegmentInfo* m_pInfo;
|
||||
Tracks* m_pTracks;
|
||||
Cluster** m_clusters;
|
||||
size_t m_clusterCount;
|
||||
|
||||
void ParseSeekHead(long long pos, long long size, size_t*);
|
||||
void ParseSeekEntry(long long pos, long long size, size_t*);
|
||||
void ParseSecondarySeekHead(long long off, size_t*);
|
||||
};
|
||||
|
||||
|
||||
} //end namespace mkvparser
|
||||
|
||||
#endif //MKVPARSER_HPP
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license
|
||||
// that can be found in the LICENSE file in the root of the source
|
||||
// tree. An additional intellectual property rights grant can be found
|
||||
// in the file PATENTS. All contributing project authors may
|
||||
// be found in the AUTHORS file in the root of the source tree.
|
||||
|
||||
#ifndef MKVPARSER_HPP
|
||||
#define MKVPARSER_HPP
|
||||
|
||||
#include <cstdlib>
|
||||
#include <cstdio>
|
||||
|
||||
namespace mkvparser
|
||||
{
|
||||
|
||||
const int E_FILE_FORMAT_INVALID = -2;
|
||||
const int E_BUFFER_NOT_FULL = -3;
|
||||
|
||||
class IMkvReader
|
||||
{
|
||||
public:
|
||||
virtual int Read(long long position, long length, unsigned char* buffer) = 0;
|
||||
virtual int Length(long long* total, long long* available) = 0;
|
||||
protected:
|
||||
virtual ~IMkvReader();
|
||||
};
|
||||
|
||||
long long GetUIntLength(IMkvReader*, long long, long&);
|
||||
long long ReadUInt(IMkvReader*, long long, long&);
|
||||
long long SyncReadUInt(IMkvReader*, long long pos, long long stop, long&);
|
||||
long long UnserializeUInt(IMkvReader*, long long pos, long long size);
|
||||
float Unserialize4Float(IMkvReader*, long long);
|
||||
double Unserialize8Double(IMkvReader*, long long);
|
||||
short Unserialize2SInt(IMkvReader*, long long);
|
||||
signed char Unserialize1SInt(IMkvReader*, long long);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, long long&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, char*&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long,unsigned char*&, size_t&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, double&);
|
||||
bool Match(IMkvReader*, long long&, unsigned long, short&);
|
||||
|
||||
|
||||
struct EBMLHeader
|
||||
{
|
||||
EBMLHeader();
|
||||
~EBMLHeader();
|
||||
long long m_version;
|
||||
long long m_readVersion;
|
||||
long long m_maxIdLength;
|
||||
long long m_maxSizeLength;
|
||||
char* m_docType;
|
||||
long long m_docTypeVersion;
|
||||
long long m_docTypeReadVersion;
|
||||
|
||||
long long Parse(IMkvReader*, long long&);
|
||||
};
|
||||
|
||||
|
||||
class Segment;
|
||||
class Track;
|
||||
class Cluster;
|
||||
|
||||
class Block
|
||||
{
|
||||
Block(const Block&);
|
||||
Block& operator=(const Block&);
|
||||
|
||||
public:
|
||||
const long long m_start;
|
||||
const long long m_size;
|
||||
|
||||
Block(long long start, long long size, IMkvReader*);
|
||||
|
||||
unsigned long GetTrackNumber() const;
|
||||
|
||||
long long GetTimeCode(Cluster*) const; //absolute, but not scaled
|
||||
long long GetTime(Cluster*) const; //absolute, and scaled (nanosecond units)
|
||||
bool IsKey() const;
|
||||
void SetKey(bool);
|
||||
|
||||
long GetSize() const;
|
||||
long Read(IMkvReader*, unsigned char*) const;
|
||||
|
||||
private:
|
||||
long long m_track; //Track::Number()
|
||||
short m_timecode; //relative to cluster
|
||||
unsigned char m_flags;
|
||||
long long m_frameOff;
|
||||
long m_frameSize;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class BlockEntry
|
||||
{
|
||||
BlockEntry(const BlockEntry&);
|
||||
BlockEntry& operator=(const BlockEntry&);
|
||||
|
||||
public:
|
||||
virtual ~BlockEntry();
|
||||
virtual bool EOS() const = 0;
|
||||
virtual Cluster* GetCluster() const = 0;
|
||||
virtual size_t GetIndex() const = 0;
|
||||
virtual const Block* GetBlock() const = 0;
|
||||
virtual bool IsBFrame() const = 0;
|
||||
|
||||
protected:
|
||||
BlockEntry();
|
||||
|
||||
};
|
||||
|
||||
|
||||
class SimpleBlock : public BlockEntry
|
||||
{
|
||||
SimpleBlock(const SimpleBlock&);
|
||||
SimpleBlock& operator=(const SimpleBlock&);
|
||||
|
||||
public:
|
||||
SimpleBlock(Cluster*, size_t, long long start, long long size);
|
||||
|
||||
bool EOS() const;
|
||||
Cluster* GetCluster() const;
|
||||
size_t GetIndex() const;
|
||||
const Block* GetBlock() const;
|
||||
bool IsBFrame() const;
|
||||
|
||||
protected:
|
||||
Cluster* const m_pCluster;
|
||||
const size_t m_index;
|
||||
Block m_block;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class BlockGroup : public BlockEntry
|
||||
{
|
||||
BlockGroup(const BlockGroup&);
|
||||
BlockGroup& operator=(const BlockGroup&);
|
||||
|
||||
public:
|
||||
BlockGroup(Cluster*, size_t, long long, long long);
|
||||
~BlockGroup();
|
||||
|
||||
bool EOS() const;
|
||||
Cluster* GetCluster() const;
|
||||
size_t GetIndex() const;
|
||||
const Block* GetBlock() const;
|
||||
bool IsBFrame() const;
|
||||
|
||||
short GetPrevTimeCode() const; //relative to block's time
|
||||
short GetNextTimeCode() const; //as above
|
||||
|
||||
protected:
|
||||
Cluster* const m_pCluster;
|
||||
const size_t m_index;
|
||||
|
||||
private:
|
||||
BlockGroup(Cluster*, size_t, unsigned long);
|
||||
void ParseBlock(long long start, long long size);
|
||||
|
||||
short m_prevTimeCode;
|
||||
short m_nextTimeCode;
|
||||
|
||||
//TODO: the Matroska spec says you can have multiple blocks within the
|
||||
//same block group, with blocks ranked by priority (the flag bits).
|
||||
//For now we just cache a single block.
|
||||
#if 0
|
||||
typedef std::deque<Block*> blocks_t;
|
||||
blocks_t m_blocks; //In practice should contain only a single element.
|
||||
#else
|
||||
Block* m_pBlock;
|
||||
#endif
|
||||
|
||||
};
|
||||
|
||||
|
||||
class Track
|
||||
{
|
||||
Track(const Track&);
|
||||
Track& operator=(const Track&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
virtual ~Track();
|
||||
|
||||
long long GetType() const;
|
||||
unsigned long GetNumber() const;
|
||||
const char* GetNameAsUTF8() const;
|
||||
const char* GetCodecNameAsUTF8() const;
|
||||
const char* GetCodecId() const;
|
||||
const unsigned char* GetCodecPrivate(size_t&) const;
|
||||
|
||||
const BlockEntry* GetEOS() const;
|
||||
|
||||
struct Settings
|
||||
{
|
||||
long long start;
|
||||
long long size;
|
||||
};
|
||||
|
||||
struct Info
|
||||
{
|
||||
long long type;
|
||||
long long number;
|
||||
long long uid;
|
||||
char* nameAsUTF8;
|
||||
char* codecId;
|
||||
unsigned char* codecPrivate;
|
||||
size_t codecPrivateSize;
|
||||
char* codecNameAsUTF8;
|
||||
Settings settings;
|
||||
Info();
|
||||
void Clear();
|
||||
};
|
||||
|
||||
long GetFirst(const BlockEntry*&) const;
|
||||
long GetNext(const BlockEntry* pCurr, const BlockEntry*& pNext) const;
|
||||
virtual bool VetEntry(const BlockEntry*) const = 0;
|
||||
|
||||
protected:
|
||||
Track(Segment*, const Info&);
|
||||
const Info m_info;
|
||||
|
||||
class EOSBlock : public BlockEntry
|
||||
{
|
||||
public:
|
||||
EOSBlock();
|
||||
|
||||
bool EOS() const;
|
||||
Cluster* GetCluster() const;
|
||||
size_t GetIndex() const;
|
||||
const Block* GetBlock() const;
|
||||
bool IsBFrame() const;
|
||||
};
|
||||
|
||||
EOSBlock m_eos;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class VideoTrack : public Track
|
||||
{
|
||||
VideoTrack(const VideoTrack&);
|
||||
VideoTrack& operator=(const VideoTrack&);
|
||||
|
||||
public:
|
||||
VideoTrack(Segment*, const Info&);
|
||||
long long GetWidth() const;
|
||||
long long GetHeight() const;
|
||||
double GetFrameRate() const;
|
||||
|
||||
bool VetEntry(const BlockEntry*) const;
|
||||
|
||||
private:
|
||||
long long m_width;
|
||||
long long m_height;
|
||||
double m_rate;
|
||||
|
||||
};
|
||||
|
||||
|
||||
class AudioTrack : public Track
|
||||
{
|
||||
AudioTrack(const AudioTrack&);
|
||||
AudioTrack& operator=(const AudioTrack&);
|
||||
|
||||
public:
|
||||
AudioTrack(Segment*, const Info&);
|
||||
double GetSamplingRate() const;
|
||||
long long GetChannels() const;
|
||||
long long GetBitDepth() const;
|
||||
bool VetEntry(const BlockEntry*) const;
|
||||
|
||||
private:
|
||||
double m_rate;
|
||||
long long m_channels;
|
||||
long long m_bitDepth;
|
||||
};
|
||||
|
||||
|
||||
class Tracks
|
||||
{
|
||||
Tracks(const Tracks&);
|
||||
Tracks& operator=(const Tracks&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
const long long m_start;
|
||||
const long long m_size;
|
||||
|
||||
Tracks(Segment*, long long start, long long size);
|
||||
virtual ~Tracks();
|
||||
|
||||
Track* GetTrackByNumber(unsigned long tn) const;
|
||||
Track* GetTrackByIndex(unsigned long idx) const;
|
||||
|
||||
private:
|
||||
Track** m_trackEntries;
|
||||
Track** m_trackEntriesEnd;
|
||||
|
||||
void ParseTrackEntry(long long, long long, Track*&);
|
||||
|
||||
public:
|
||||
unsigned long GetTracksCount() const;
|
||||
};
|
||||
|
||||
|
||||
class SegmentInfo
|
||||
{
|
||||
SegmentInfo(const SegmentInfo&);
|
||||
SegmentInfo& operator=(const SegmentInfo&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
const long long m_start;
|
||||
const long long m_size;
|
||||
|
||||
SegmentInfo(Segment*, long long start, long long size);
|
||||
~SegmentInfo();
|
||||
long long GetTimeCodeScale() const;
|
||||
long long GetDuration() const; //scaled
|
||||
const char* GetMuxingAppAsUTF8() const;
|
||||
const char* GetWritingAppAsUTF8() const;
|
||||
const char* GetTitleAsUTF8() const;
|
||||
|
||||
private:
|
||||
long long m_timecodeScale;
|
||||
double m_duration;
|
||||
char* m_pMuxingAppAsUTF8;
|
||||
char* m_pWritingAppAsUTF8;
|
||||
char* m_pTitleAsUTF8;
|
||||
};
|
||||
|
||||
|
||||
class Cluster
|
||||
{
|
||||
Cluster(const Cluster&);
|
||||
Cluster& operator=(const Cluster&);
|
||||
|
||||
public:
|
||||
Segment* const m_pSegment;
|
||||
const size_t m_index;
|
||||
|
||||
public:
|
||||
static Cluster* Parse(Segment*, size_t, long long off);
|
||||
|
||||
Cluster(); //EndOfStream
|
||||
~Cluster();
|
||||
|
||||
bool EOS() const;
|
||||
|
||||
long long GetTimeCode(); //absolute, but not scaled
|
||||
long long GetTime(); //absolute, and scaled (nanosecond units)
|
||||
|
||||
const BlockEntry* GetFirst();
|
||||
const BlockEntry* GetLast();
|
||||
const BlockEntry* GetNext(const BlockEntry*) const;
|
||||
const BlockEntry* GetEntry(const Track*);
|
||||
protected:
|
||||
Cluster(Segment*, size_t, long long off);
|
||||
|
||||
private:
|
||||
long long m_start;
|
||||
long long m_size;
|
||||
long long m_timecode;
|
||||
BlockEntry** m_pEntries;
|
||||
size_t m_entriesCount;
|
||||
|
||||
void Load();
|
||||
void LoadBlockEntries();
|
||||
void ParseBlockGroup(long long, long long, size_t);
|
||||
void ParseSimpleBlock(long long, long long, size_t);
|
||||
|
||||
};
|
||||
|
||||
|
||||
class Segment
|
||||
{
|
||||
Segment(const Segment&);
|
||||
Segment& operator=(const Segment&);
|
||||
|
||||
private:
|
||||
Segment(IMkvReader*, long long pos, long long size);
|
||||
|
||||
public:
|
||||
IMkvReader* const m_pReader;
|
||||
const long long m_start; //posn of segment payload
|
||||
const long long m_size; //size of segment payload
|
||||
Cluster m_eos; //TODO: make private?
|
||||
|
||||
static long long CreateInstance(IMkvReader*, long long, Segment*&);
|
||||
~Segment();
|
||||
|
||||
//for big-bang loading (source filter)
|
||||
long Load();
|
||||
|
||||
//for incremental loading (splitter)
|
||||
long long Unparsed() const;
|
||||
long long ParseHeaders();
|
||||
long ParseCluster(Cluster*&, long long& newpos) const;
|
||||
bool AddCluster(Cluster*, long long);
|
||||
|
||||
Tracks* GetTracks() const;
|
||||
const SegmentInfo* const GetInfo() const;
|
||||
long long GetDuration() const;
|
||||
|
||||
//NOTE: this turned out to be too inefficient.
|
||||
//long long Load(long long time_nanoseconds);
|
||||
|
||||
Cluster* GetFirst();
|
||||
Cluster* GetLast();
|
||||
unsigned long GetCount() const;
|
||||
|
||||
Cluster* GetNext(const Cluster*);
|
||||
Cluster* GetCluster(long long time_nanoseconds);
|
||||
|
||||
private:
|
||||
long long m_pos; //absolute file posn; what has been consumed so far
|
||||
SegmentInfo* m_pInfo;
|
||||
Tracks* m_pTracks;
|
||||
Cluster** m_clusters;
|
||||
size_t m_clusterCount;
|
||||
|
||||
void ParseSeekHead(long long pos, long long size, size_t*);
|
||||
void ParseSeekEntry(long long pos, long long size, size_t*);
|
||||
void ParseSecondarySeekHead(long long off, size_t*);
|
||||
};
|
||||
|
||||
|
||||
} //end namespace mkvparser
|
||||
|
||||
#endif //MKVPARSER_HPP
|
||||
|
245
mkvreader.cpp
245
mkvreader.cpp
@ -1,122 +1,123 @@
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license and patent
|
||||
// grant that can be found in the LICENSE file in the root of the source
|
||||
// tree. All contributing project authors may be found in the AUTHORS
|
||||
// file in the root of the source tree.
|
||||
|
||||
#include "mkvreader.hpp"
|
||||
|
||||
#include <cassert>
|
||||
|
||||
MkvReader::MkvReader() :
|
||||
m_file(NULL)
|
||||
{
|
||||
}
|
||||
|
||||
MkvReader::~MkvReader()
|
||||
{
|
||||
Close();
|
||||
}
|
||||
|
||||
int MkvReader::Open(const char* fileName)
|
||||
{
|
||||
if (fileName == NULL)
|
||||
return -1;
|
||||
|
||||
if (m_file)
|
||||
return -1;
|
||||
|
||||
#ifdef WIN32
|
||||
const errno_t e = fopen_s(&m_file, fileName, "rb");
|
||||
|
||||
if (e)
|
||||
return -1; //error
|
||||
#else
|
||||
m_file = fopen(fileName, "rb");
|
||||
|
||||
if (m_file == NULL)
|
||||
return -1;
|
||||
#endif
|
||||
|
||||
#ifdef WIN32
|
||||
int status = _fseeki64(m_file, 0L, SEEK_END);
|
||||
|
||||
if (status)
|
||||
return -1; //error
|
||||
|
||||
m_length = _ftelli64(m_file);
|
||||
#else
|
||||
fseek(m_file, 0L, SEEK_END);
|
||||
m_length = ftell(m_file);
|
||||
#endif
|
||||
assert(m_length >= 0);
|
||||
|
||||
#ifdef WIN32
|
||||
status = _fseeki64(m_file, 0L, SEEK_SET);
|
||||
|
||||
if (status)
|
||||
return -1; //error
|
||||
#else
|
||||
fseek(m_file, 0L, SEEK_SET);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void MkvReader::Close()
|
||||
{
|
||||
if (m_file != NULL)
|
||||
{
|
||||
fclose(m_file);
|
||||
m_file = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
int MkvReader::Length(long long* total, long long* available)
|
||||
{
|
||||
if (m_file == NULL)
|
||||
return -1;
|
||||
|
||||
if (total)
|
||||
*total = m_length;
|
||||
|
||||
if (available)
|
||||
*available = m_length;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int MkvReader::Read(long long offset, long len, unsigned char* buffer)
|
||||
{
|
||||
if (m_file == NULL)
|
||||
return -1;
|
||||
|
||||
if (offset < 0)
|
||||
return -1;
|
||||
|
||||
if (len < 0)
|
||||
return -1;
|
||||
|
||||
if (len == 0)
|
||||
return 0;
|
||||
|
||||
if (offset >= m_length)
|
||||
return -1;
|
||||
|
||||
#ifdef WIN32
|
||||
const int status = _fseeki64(m_file, offset, SEEK_SET);
|
||||
|
||||
if (status)
|
||||
return -1; //error
|
||||
#else
|
||||
fseek(m_file, offset, SEEK_SET);
|
||||
#endif
|
||||
|
||||
const size_t size = fread(buffer, 1, len, m_file);
|
||||
|
||||
if (size < size_t(len))
|
||||
return -1; //error
|
||||
|
||||
return 0; //success
|
||||
}
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license
|
||||
// that can be found in the LICENSE file in the root of the source
|
||||
// tree. An additional intellectual property rights grant can be found
|
||||
// in the file PATENTS. All contributing project authors may
|
||||
// be found in the AUTHORS file in the root of the source tree.
|
||||
|
||||
#include "mkvreader.hpp"
|
||||
|
||||
#include <cassert>
|
||||
|
||||
MkvReader::MkvReader() :
|
||||
m_file(NULL)
|
||||
{
|
||||
}
|
||||
|
||||
MkvReader::~MkvReader()
|
||||
{
|
||||
Close();
|
||||
}
|
||||
|
||||
int MkvReader::Open(const char* fileName)
|
||||
{
|
||||
if (fileName == NULL)
|
||||
return -1;
|
||||
|
||||
if (m_file)
|
||||
return -1;
|
||||
|
||||
#ifdef WIN32
|
||||
const errno_t e = fopen_s(&m_file, fileName, "rb");
|
||||
|
||||
if (e)
|
||||
return -1; //error
|
||||
#else
|
||||
m_file = fopen(fileName, "rb");
|
||||
|
||||
if (m_file == NULL)
|
||||
return -1;
|
||||
#endif
|
||||
|
||||
#ifdef WIN32
|
||||
int status = _fseeki64(m_file, 0L, SEEK_END);
|
||||
|
||||
if (status)
|
||||
return -1; //error
|
||||
|
||||
m_length = _ftelli64(m_file);
|
||||
#else
|
||||
fseek(m_file, 0L, SEEK_END);
|
||||
m_length = ftell(m_file);
|
||||
#endif
|
||||
assert(m_length >= 0);
|
||||
|
||||
#ifdef WIN32
|
||||
status = _fseeki64(m_file, 0L, SEEK_SET);
|
||||
|
||||
if (status)
|
||||
return -1; //error
|
||||
#else
|
||||
fseek(m_file, 0L, SEEK_SET);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void MkvReader::Close()
|
||||
{
|
||||
if (m_file != NULL)
|
||||
{
|
||||
fclose(m_file);
|
||||
m_file = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
int MkvReader::Length(long long* total, long long* available)
|
||||
{
|
||||
if (m_file == NULL)
|
||||
return -1;
|
||||
|
||||
if (total)
|
||||
*total = m_length;
|
||||
|
||||
if (available)
|
||||
*available = m_length;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int MkvReader::Read(long long offset, long len, unsigned char* buffer)
|
||||
{
|
||||
if (m_file == NULL)
|
||||
return -1;
|
||||
|
||||
if (offset < 0)
|
||||
return -1;
|
||||
|
||||
if (len < 0)
|
||||
return -1;
|
||||
|
||||
if (len == 0)
|
||||
return 0;
|
||||
|
||||
if (offset >= m_length)
|
||||
return -1;
|
||||
|
||||
#ifdef WIN32
|
||||
const int status = _fseeki64(m_file, offset, SEEK_SET);
|
||||
|
||||
if (status)
|
||||
return -1; //error
|
||||
#else
|
||||
fseek(m_file, offset, SEEK_SET);
|
||||
#endif
|
||||
|
||||
const size_t size = fread(buffer, 1, len, m_file);
|
||||
|
||||
if (size < size_t(len))
|
||||
return -1; //error
|
||||
|
||||
return 0; //success
|
||||
}
|
||||
|
@ -1,33 +1,34 @@
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license and patent
|
||||
// grant that can be found in the LICENSE file in the root of the source
|
||||
// tree. All contributing project authors may be found in the AUTHORS
|
||||
// file in the root of the source tree.
|
||||
|
||||
#ifndef MKVREADER_HPP
|
||||
#define MKVREADER_HPP
|
||||
|
||||
#include "mkvparser.hpp"
|
||||
#include <cstdio>
|
||||
|
||||
class MkvReader : public mkvparser::IMkvReader
|
||||
{
|
||||
MkvReader(const MkvReader&);
|
||||
MkvReader& operator=(const MkvReader&);
|
||||
public:
|
||||
MkvReader();
|
||||
virtual ~MkvReader();
|
||||
|
||||
int Open(const char*);
|
||||
void Close();
|
||||
bool IsOpen() const;
|
||||
|
||||
virtual int Read(long long position, long length, unsigned char* buffer);
|
||||
virtual int Length(long long* total, long long* available);
|
||||
private:
|
||||
long long m_length;
|
||||
FILE* m_file;
|
||||
};
|
||||
|
||||
#endif //MKVREADER_HPP
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license
|
||||
// that can be found in the LICENSE file in the root of the source
|
||||
// tree. An additional intellectual property rights grant can be found
|
||||
// in the file PATENTS. All contributing project authors may
|
||||
// be found in the AUTHORS file in the root of the source tree.
|
||||
|
||||
#ifndef MKVREADER_HPP
|
||||
#define MKVREADER_HPP
|
||||
|
||||
#include "mkvparser.hpp"
|
||||
#include <cstdio>
|
||||
|
||||
class MkvReader : public mkvparser::IMkvReader
|
||||
{
|
||||
MkvReader(const MkvReader&);
|
||||
MkvReader& operator=(const MkvReader&);
|
||||
public:
|
||||
MkvReader();
|
||||
virtual ~MkvReader();
|
||||
|
||||
int Open(const char*);
|
||||
void Close();
|
||||
bool IsOpen() const;
|
||||
|
||||
virtual int Read(long long position, long length, unsigned char* buffer);
|
||||
virtual int Length(long long* total, long long* available);
|
||||
private:
|
||||
long long m_length;
|
||||
FILE* m_file;
|
||||
};
|
||||
|
||||
#endif //MKVREADER_HPP
|
||||
|
473
sample.cpp
473
sample.cpp
@ -1,236 +1,237 @@
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license and patent
|
||||
// grant that can be found in the LICENSE file in the root of the source
|
||||
// tree. All contributing project authors may be found in the AUTHORS
|
||||
// file in the root of the source tree.
|
||||
//
|
||||
// This sample application is designed to help clients understand how to use
|
||||
// mkvparser library.
|
||||
// By using the mkvparser lib clients are able to handle a matroska format file.
|
||||
|
||||
#include "mkvreader.hpp"
|
||||
#include "mkvparser.hpp"
|
||||
|
||||
static const wchar_t* utf8towcs(const char* str)
|
||||
{
|
||||
if (str == NULL)
|
||||
return NULL;
|
||||
|
||||
//TODO: this probably requires that the locale be
|
||||
//configured somehow:
|
||||
|
||||
const size_t size = mbstowcs(NULL, str, 0);
|
||||
|
||||
if (size == 0)
|
||||
return NULL;
|
||||
|
||||
wchar_t* const val = new wchar_t[size+1];
|
||||
|
||||
mbstowcs(val, str, size);
|
||||
val[size] = L'\0';
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
if (argc == 1)
|
||||
{
|
||||
printf("\t\t\tMkv Parser Sample Application\n");
|
||||
printf("\t\t\tUsage: \n");
|
||||
printf("\t\t\t ./sample [input file] \n");
|
||||
printf("\t\t\t ./sample sample.mkv \n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
using namespace mkvparser;
|
||||
|
||||
MkvReader reader;
|
||||
|
||||
if (reader.Open(argv[1]))
|
||||
{
|
||||
printf("\n Filename is invalid or error while opening.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
long long pos = 0;
|
||||
|
||||
EBMLHeader ebmlHeader;
|
||||
|
||||
ebmlHeader.Parse(&reader, pos);
|
||||
|
||||
printf("\t\t\t EBML Header\n");
|
||||
printf("\t\tEBML Version\t\t: %lld\n", ebmlHeader.m_version);
|
||||
printf("\t\tEBML MaxIDLength\t: %lld\n", ebmlHeader.m_maxIdLength);
|
||||
printf("\t\tEBML MaxSizeLength\t: %lld\n", ebmlHeader.m_maxSizeLength);
|
||||
printf("\t\tDoc Type\t\t: %s\n", ebmlHeader.m_docType);
|
||||
printf("\t\tPos\t\t\t: %lld\n", pos);
|
||||
|
||||
mkvparser::Segment* pSegment;
|
||||
|
||||
long long ret = mkvparser::Segment::CreateInstance(&reader, pos, pSegment);
|
||||
if (ret)
|
||||
{
|
||||
printf("\n Segment::CreateInstance() failed.");
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = pSegment->Load();
|
||||
if (ret < 0)
|
||||
{
|
||||
printf("\n Segment::Load() failed.");
|
||||
return -1;
|
||||
}
|
||||
|
||||
const SegmentInfo* const pSegmentInfo = pSegment->GetInfo();
|
||||
|
||||
const long long timeCodeScale = pSegmentInfo->GetTimeCodeScale();
|
||||
const long long duration_ns = pSegmentInfo->GetDuration();
|
||||
const wchar_t* const pTitle = utf8towcs(pSegmentInfo->GetTitleAsUTF8());
|
||||
const wchar_t* const pMuxingApp = utf8towcs(pSegmentInfo->GetMuxingAppAsUTF8());
|
||||
const wchar_t* const pWritingApp = utf8towcs(pSegmentInfo->GetWritingAppAsUTF8());
|
||||
|
||||
printf("\n");
|
||||
printf("\t\t\t Segment Info\n");
|
||||
printf("\t\tTimeCodeScale\t\t: %lld \n", timeCodeScale);
|
||||
printf("\t\tDuration\t\t: %lld\n", duration_ns);
|
||||
|
||||
const double duration_sec = double(duration_ns) / 1000000000;
|
||||
printf("\t\tDuration(secs)\t\t: %7.3f\n", duration_sec);
|
||||
|
||||
if (pTitle == NULL)
|
||||
printf("\t\tTrack Name\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tTrack Name\t\t: %ls\n", pTitle);
|
||||
|
||||
if (pMuxingApp == NULL)
|
||||
printf("\t\tMuxing App\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tMuxing App\t\t: %ls\n", pMuxingApp);
|
||||
|
||||
if (pWritingApp == NULL)
|
||||
printf("\t\tWriting App\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tWriting App\t\t: %ls\n", pWritingApp);
|
||||
|
||||
printf("\t\tPosition(Segment)\t: %lld\n", pSegment->m_start); // position of segment payload
|
||||
printf("\t\tSize(Segment)\t\t: %lld\n", pSegment->m_size); // size of segment payload
|
||||
|
||||
mkvparser::Tracks* const pTracks = pSegment->GetTracks();
|
||||
|
||||
unsigned long i = 0;
|
||||
const unsigned long j = pTracks->GetTracksCount();
|
||||
|
||||
enum { VIDEO_TRACK = 1, AUDIO_TRACK = 2 };
|
||||
|
||||
printf("\n\t\t\t Track Info\n");
|
||||
|
||||
while (i != j)
|
||||
{
|
||||
const Track* const pTrack = pTracks->GetTrackByIndex(i++);
|
||||
|
||||
if (pTrack == NULL)
|
||||
continue;
|
||||
|
||||
const long long trackType_ = pTrack->GetType();
|
||||
unsigned long trackType = static_cast<unsigned long>(trackType_);
|
||||
|
||||
unsigned long trackNumber = pTrack->GetNumber();
|
||||
const wchar_t* const pTrackName = utf8towcs(pTrack->GetNameAsUTF8());
|
||||
|
||||
printf("\t\tTrack Type\t\t: %ld\n", trackType);
|
||||
printf("\t\tTrack Number\t\t: %ld\n", trackNumber);
|
||||
|
||||
if (pTrackName == NULL)
|
||||
printf("\t\tTrack Name\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tTrack Name\t\t: %ls \n", pTrackName);
|
||||
|
||||
const char* const pCodecId = pTrack->GetCodecId();
|
||||
|
||||
if (pCodecId == NULL)
|
||||
printf("\t\tCodec Id\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tCodec Id\t\t: %s\n", pCodecId);
|
||||
|
||||
const wchar_t* const pCodecName = utf8towcs(pTrack->GetCodecNameAsUTF8());
|
||||
|
||||
if (pCodecName == NULL)
|
||||
printf("\t\tCodec Name\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tCodec Name\t\t: %ls\n", pCodecName);
|
||||
|
||||
if (trackType == VIDEO_TRACK)
|
||||
{
|
||||
const VideoTrack* const pVideoTrack = static_cast<const VideoTrack* const>(pTrack);
|
||||
long long width = pVideoTrack->GetWidth();
|
||||
long long height = pVideoTrack->GetHeight();
|
||||
double rate = pVideoTrack->GetFrameRate();
|
||||
|
||||
printf("\t\tVideo Width\t\t: %lld\n", width);
|
||||
printf("\t\tVideo Height\t\t: %lld\n", height);
|
||||
printf("\t\tVideo Rate\t\t: %f\n",rate);
|
||||
}
|
||||
|
||||
if (trackType == AUDIO_TRACK)
|
||||
{
|
||||
const AudioTrack* const pAudioTrack = static_cast<const AudioTrack* const>(pTrack);
|
||||
long long channels = pAudioTrack->GetChannels();
|
||||
long long bitDepth = pAudioTrack->GetBitDepth();
|
||||
double sampleRate = pAudioTrack->GetSamplingRate();
|
||||
|
||||
printf("\t\tAudio Channels\t\t: %lld\n", channels);
|
||||
printf("\t\tAudio BitDepth\t\t: %lld\n", bitDepth);
|
||||
printf("\t\tAddio Sample Rate\t: %.3f\n", sampleRate);
|
||||
}
|
||||
}
|
||||
|
||||
printf("\n\n\t\t\t Cluster Info\n");
|
||||
const unsigned long clusterCount = pSegment->GetCount();
|
||||
|
||||
printf("\t\tCluster Count\t: %ld\n\n", clusterCount);
|
||||
|
||||
if (clusterCount == 0)
|
||||
{
|
||||
printf("\t\tSegment has no clusters.\n");
|
||||
delete pSegment;
|
||||
return -1;
|
||||
}
|
||||
|
||||
mkvparser::Cluster* pCluster = pSegment->GetFirst();
|
||||
|
||||
while ((pCluster != NULL) && !pCluster->EOS())
|
||||
{
|
||||
const long long timeCode = pCluster->GetTimeCode();
|
||||
printf("\t\tCluster Time Code\t: %lld\n", timeCode);
|
||||
|
||||
const long long time_ns = pCluster->GetTime();
|
||||
printf("\t\tCluster Time (ns)\t: %lld\n", time_ns);
|
||||
|
||||
const BlockEntry* pBlockEntry = pCluster->GetFirst();
|
||||
|
||||
while ((pBlockEntry != NULL) && !pBlockEntry->EOS())
|
||||
{
|
||||
const Block* const pBlock = pBlockEntry->GetBlock();
|
||||
const unsigned long trackNum = pBlock->GetTrackNumber();
|
||||
const long size = pBlock->GetSize();
|
||||
const long long time_ns = pBlock->GetTime(pCluster);
|
||||
|
||||
printf("\t\t\tBlock\t\t:%s,%15ld,%s,%15lld\n",
|
||||
(trackNum == VIDEO_TRACK) ? "V" : "A",
|
||||
size,
|
||||
pBlock->IsKey() ? "I" : "P",
|
||||
time_ns);
|
||||
|
||||
pBlockEntry = pCluster->GetNext(pBlockEntry);
|
||||
}
|
||||
|
||||
pCluster = pSegment->GetNext(pCluster);
|
||||
}
|
||||
|
||||
delete pSegment;
|
||||
return 0;
|
||||
|
||||
}
|
||||
// Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
||||
//
|
||||
// Use of this source code is governed by a BSD-style license
|
||||
// that can be found in the LICENSE file in the root of the source
|
||||
// tree. An additional intellectual property rights grant can be found
|
||||
// in the file PATENTS. All contributing project authors may
|
||||
// be found in the AUTHORS file in the root of the source tree.
|
||||
//
|
||||
// This sample application is designed to help clients understand how to use
|
||||
// mkvparser library.
|
||||
// By using the mkvparser lib clients are able to handle a matroska format file.
|
||||
|
||||
#include "mkvreader.hpp"
|
||||
#include "mkvparser.hpp"
|
||||
|
||||
static const wchar_t* utf8towcs(const char* str)
|
||||
{
|
||||
if (str == NULL)
|
||||
return NULL;
|
||||
|
||||
//TODO: this probably requires that the locale be
|
||||
//configured somehow:
|
||||
|
||||
const size_t size = mbstowcs(NULL, str, 0);
|
||||
|
||||
if (size == 0)
|
||||
return NULL;
|
||||
|
||||
wchar_t* const val = new wchar_t[size+1];
|
||||
|
||||
mbstowcs(val, str, size);
|
||||
val[size] = L'\0';
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
if (argc == 1)
|
||||
{
|
||||
printf("\t\t\tMkv Parser Sample Application\n");
|
||||
printf("\t\t\tUsage: \n");
|
||||
printf("\t\t\t ./sample [input file] \n");
|
||||
printf("\t\t\t ./sample sample.mkv \n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
using namespace mkvparser;
|
||||
|
||||
MkvReader reader;
|
||||
|
||||
if (reader.Open(argv[1]))
|
||||
{
|
||||
printf("\n Filename is invalid or error while opening.\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
long long pos = 0;
|
||||
|
||||
EBMLHeader ebmlHeader;
|
||||
|
||||
ebmlHeader.Parse(&reader, pos);
|
||||
|
||||
printf("\t\t\t EBML Header\n");
|
||||
printf("\t\tEBML Version\t\t: %lld\n", ebmlHeader.m_version);
|
||||
printf("\t\tEBML MaxIDLength\t: %lld\n", ebmlHeader.m_maxIdLength);
|
||||
printf("\t\tEBML MaxSizeLength\t: %lld\n", ebmlHeader.m_maxSizeLength);
|
||||
printf("\t\tDoc Type\t\t: %s\n", ebmlHeader.m_docType);
|
||||
printf("\t\tPos\t\t\t: %lld\n", pos);
|
||||
|
||||
mkvparser::Segment* pSegment;
|
||||
|
||||
long long ret = mkvparser::Segment::CreateInstance(&reader, pos, pSegment);
|
||||
if (ret)
|
||||
{
|
||||
printf("\n Segment::CreateInstance() failed.");
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = pSegment->Load();
|
||||
if (ret < 0)
|
||||
{
|
||||
printf("\n Segment::Load() failed.");
|
||||
return -1;
|
||||
}
|
||||
|
||||
const SegmentInfo* const pSegmentInfo = pSegment->GetInfo();
|
||||
|
||||
const long long timeCodeScale = pSegmentInfo->GetTimeCodeScale();
|
||||
const long long duration_ns = pSegmentInfo->GetDuration();
|
||||
const wchar_t* const pTitle = utf8towcs(pSegmentInfo->GetTitleAsUTF8());
|
||||
const wchar_t* const pMuxingApp = utf8towcs(pSegmentInfo->GetMuxingAppAsUTF8());
|
||||
const wchar_t* const pWritingApp = utf8towcs(pSegmentInfo->GetWritingAppAsUTF8());
|
||||
|
||||
printf("\n");
|
||||
printf("\t\t\t Segment Info\n");
|
||||
printf("\t\tTimeCodeScale\t\t: %lld \n", timeCodeScale);
|
||||
printf("\t\tDuration\t\t: %lld\n", duration_ns);
|
||||
|
||||
const double duration_sec = double(duration_ns) / 1000000000;
|
||||
printf("\t\tDuration(secs)\t\t: %7.3f\n", duration_sec);
|
||||
|
||||
if (pTitle == NULL)
|
||||
printf("\t\tTrack Name\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tTrack Name\t\t: %ls\n", pTitle);
|
||||
|
||||
if (pMuxingApp == NULL)
|
||||
printf("\t\tMuxing App\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tMuxing App\t\t: %ls\n", pMuxingApp);
|
||||
|
||||
if (pWritingApp == NULL)
|
||||
printf("\t\tWriting App\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tWriting App\t\t: %ls\n", pWritingApp);
|
||||
|
||||
printf("\t\tPosition(Segment)\t: %lld\n", pSegment->m_start); // position of segment payload
|
||||
printf("\t\tSize(Segment)\t\t: %lld\n", pSegment->m_size); // size of segment payload
|
||||
|
||||
mkvparser::Tracks* const pTracks = pSegment->GetTracks();
|
||||
|
||||
unsigned long i = 0;
|
||||
const unsigned long j = pTracks->GetTracksCount();
|
||||
|
||||
enum { VIDEO_TRACK = 1, AUDIO_TRACK = 2 };
|
||||
|
||||
printf("\n\t\t\t Track Info\n");
|
||||
|
||||
while (i != j)
|
||||
{
|
||||
const Track* const pTrack = pTracks->GetTrackByIndex(i++);
|
||||
|
||||
if (pTrack == NULL)
|
||||
continue;
|
||||
|
||||
const long long trackType_ = pTrack->GetType();
|
||||
unsigned long trackType = static_cast<unsigned long>(trackType_);
|
||||
|
||||
unsigned long trackNumber = pTrack->GetNumber();
|
||||
const wchar_t* const pTrackName = utf8towcs(pTrack->GetNameAsUTF8());
|
||||
|
||||
printf("\t\tTrack Type\t\t: %ld\n", trackType);
|
||||
printf("\t\tTrack Number\t\t: %ld\n", trackNumber);
|
||||
|
||||
if (pTrackName == NULL)
|
||||
printf("\t\tTrack Name\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tTrack Name\t\t: %ls \n", pTrackName);
|
||||
|
||||
const char* const pCodecId = pTrack->GetCodecId();
|
||||
|
||||
if (pCodecId == NULL)
|
||||
printf("\t\tCodec Id\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tCodec Id\t\t: %s\n", pCodecId);
|
||||
|
||||
const wchar_t* const pCodecName = utf8towcs(pTrack->GetCodecNameAsUTF8());
|
||||
|
||||
if (pCodecName == NULL)
|
||||
printf("\t\tCodec Name\t\t: NULL\n");
|
||||
else
|
||||
printf("\t\tCodec Name\t\t: %ls\n", pCodecName);
|
||||
|
||||
if (trackType == VIDEO_TRACK)
|
||||
{
|
||||
const VideoTrack* const pVideoTrack = static_cast<const VideoTrack* const>(pTrack);
|
||||
long long width = pVideoTrack->GetWidth();
|
||||
long long height = pVideoTrack->GetHeight();
|
||||
double rate = pVideoTrack->GetFrameRate();
|
||||
|
||||
printf("\t\tVideo Width\t\t: %lld\n", width);
|
||||
printf("\t\tVideo Height\t\t: %lld\n", height);
|
||||
printf("\t\tVideo Rate\t\t: %f\n",rate);
|
||||
}
|
||||
|
||||
if (trackType == AUDIO_TRACK)
|
||||
{
|
||||
const AudioTrack* const pAudioTrack = static_cast<const AudioTrack* const>(pTrack);
|
||||
long long channels = pAudioTrack->GetChannels();
|
||||
long long bitDepth = pAudioTrack->GetBitDepth();
|
||||
double sampleRate = pAudioTrack->GetSamplingRate();
|
||||
|
||||
printf("\t\tAudio Channels\t\t: %lld\n", channels);
|
||||
printf("\t\tAudio BitDepth\t\t: %lld\n", bitDepth);
|
||||
printf("\t\tAddio Sample Rate\t: %.3f\n", sampleRate);
|
||||
}
|
||||
}
|
||||
|
||||
printf("\n\n\t\t\t Cluster Info\n");
|
||||
const unsigned long clusterCount = pSegment->GetCount();
|
||||
|
||||
printf("\t\tCluster Count\t: %ld\n\n", clusterCount);
|
||||
|
||||
if (clusterCount == 0)
|
||||
{
|
||||
printf("\t\tSegment has no clusters.\n");
|
||||
delete pSegment;
|
||||
return -1;
|
||||
}
|
||||
|
||||
mkvparser::Cluster* pCluster = pSegment->GetFirst();
|
||||
|
||||
while ((pCluster != NULL) && !pCluster->EOS())
|
||||
{
|
||||
const long long timeCode = pCluster->GetTimeCode();
|
||||
printf("\t\tCluster Time Code\t: %lld\n", timeCode);
|
||||
|
||||
const long long time_ns = pCluster->GetTime();
|
||||
printf("\t\tCluster Time (ns)\t: %lld\n", time_ns);
|
||||
|
||||
const BlockEntry* pBlockEntry = pCluster->GetFirst();
|
||||
|
||||
while ((pBlockEntry != NULL) && !pBlockEntry->EOS())
|
||||
{
|
||||
const Block* const pBlock = pBlockEntry->GetBlock();
|
||||
const unsigned long trackNum = pBlock->GetTrackNumber();
|
||||
const long size = pBlock->GetSize();
|
||||
const long long time_ns = pBlock->GetTime(pCluster);
|
||||
|
||||
printf("\t\t\tBlock\t\t:%s,%15ld,%s,%15lld\n",
|
||||
(trackNum == VIDEO_TRACK) ? "V" : "A",
|
||||
size,
|
||||
pBlock->IsKey() ? "I" : "P",
|
||||
time_ns);
|
||||
|
||||
pBlockEntry = pCluster->GetNext(pBlockEntry);
|
||||
}
|
||||
|
||||
pCluster = pSegment->GetNext(pCluster);
|
||||
}
|
||||
|
||||
delete pSegment;
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
Loading…
x
Reference in New Issue
Block a user