a9f43fe8e7
Track::GetDefaultDuration is implemented as an alternative to VideoTrack::GetFrameRate which seems to be deprecated. Change-Id: I2c7a6d56a232125b8632d87eab75b9600c5451e1
1071 lines
28 KiB
C++
1071 lines
28 KiB
C++
// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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#ifndef MKVPARSER_HPP
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#define MKVPARSER_HPP
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#include <cstdlib>
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#include <cstdio>
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#include <cstddef>
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namespace mkvparser
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{
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const int E_FILE_FORMAT_INVALID = -2;
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const int E_BUFFER_NOT_FULL = -3;
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class IMkvReader
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{
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public:
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virtual int Read(long long pos, long len, unsigned char* buf) = 0;
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virtual int Length(long long* total, long long* available) = 0;
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protected:
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virtual ~IMkvReader();
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};
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long long GetUIntLength(IMkvReader*, long long, long&);
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long long ReadUInt(IMkvReader*, long long, long&);
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long long UnserializeUInt(IMkvReader*, long long pos, long long size);
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long UnserializeFloat(IMkvReader*, long long pos, long long size, double&);
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long UnserializeInt(IMkvReader*, long long pos, long len, long long& result);
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long UnserializeString(
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IMkvReader*,
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long long pos,
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long long size,
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char*& str);
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long ParseElementHeader(
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IMkvReader* pReader,
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long long& pos, //consume id and size fields
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long long stop, //if you know size of element's parent
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long long& id,
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long long& size);
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bool Match(IMkvReader*, long long&, unsigned long, long long&);
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bool Match(IMkvReader*, long long&, unsigned long, unsigned char*&, size_t&);
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void GetVersion(int& major, int& minor, int& build, int& revision);
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struct EBMLHeader
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{
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EBMLHeader();
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~EBMLHeader();
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long long m_version;
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long long m_readVersion;
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long long m_maxIdLength;
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long long m_maxSizeLength;
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char* m_docType;
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long long m_docTypeVersion;
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long long m_docTypeReadVersion;
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long long Parse(IMkvReader*, long long&);
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void Init();
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};
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class Segment;
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class Track;
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class Cluster;
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class Block
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{
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Block(const Block&);
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Block& operator=(const Block&);
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public:
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const long long m_start;
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const long long m_size;
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Block(long long start, long long size);
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~Block();
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long Parse(const Cluster*);
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long long GetTrackNumber() const;
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long long GetTimeCode(const Cluster*) const; //absolute, but not scaled
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long long GetTime(const Cluster*) const; //absolute, and scaled (ns)
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bool IsKey() const;
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void SetKey(bool);
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bool IsInvisible() const;
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enum Lacing { kLacingNone, kLacingXiph, kLacingFixed, kLacingEbml };
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Lacing GetLacing() const;
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int GetFrameCount() const; //to index frames: [0, count)
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struct Frame
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{
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long long pos; //absolute offset
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long len;
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long Read(IMkvReader*, unsigned char*) const;
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};
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const Frame& GetFrame(int frame_index) const;
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private:
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long long m_track; //Track::Number()
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short m_timecode; //relative to cluster
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unsigned char m_flags;
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Frame* m_frames;
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int m_frame_count;
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};
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class BlockEntry
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{
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BlockEntry(const BlockEntry&);
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BlockEntry& operator=(const BlockEntry&);
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protected:
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BlockEntry(Cluster*, long index);
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public:
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virtual ~BlockEntry();
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bool EOS() const;
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const Cluster* GetCluster() const;
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long GetIndex() const;
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virtual const Block* GetBlock() const = 0;
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enum Kind { kBlockEOS, kBlockSimple, kBlockGroup };
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virtual Kind GetKind() const = 0;
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protected:
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Cluster* const m_pCluster;
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const long m_index;
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};
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class SimpleBlock : public BlockEntry
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{
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SimpleBlock(const SimpleBlock&);
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SimpleBlock& operator=(const SimpleBlock&);
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public:
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SimpleBlock(Cluster*, long index, long long start, long long size);
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long Parse();
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Kind GetKind() const;
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const Block* GetBlock() const;
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protected:
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Block m_block;
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};
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class BlockGroup : public BlockEntry
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{
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BlockGroup(const BlockGroup&);
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BlockGroup& operator=(const BlockGroup&);
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public:
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BlockGroup(
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Cluster*,
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long index,
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long long block_start, //absolute pos of block's payload
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long long block_size, //size of block's payload
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long long prev,
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long long next,
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long long duration);
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long Parse();
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Kind GetKind() const;
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const Block* GetBlock() const;
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long long GetPrevTimeCode() const; //relative to block's time
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long long GetNextTimeCode() const; //as above
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long long GetDurationTimeCode() const;
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private:
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Block m_block;
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const long long m_prev;
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const long long m_next;
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const long long m_duration;
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};
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///////////////////////////////////////////////////////////////
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// ContentEncoding element
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// Elements used to describe if the track data has been encrypted or
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// compressed with zlib or header stripping.
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class ContentEncoding {
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public:
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enum {
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kCTR = 1
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};
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ContentEncoding();
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~ContentEncoding();
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// ContentCompression element names
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struct ContentCompression {
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ContentCompression();
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~ContentCompression();
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unsigned long long algo;
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unsigned char* settings;
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long long settings_len;
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};
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// ContentEncAESSettings element names
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struct ContentEncAESSettings {
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ContentEncAESSettings() : cipher_mode(kCTR) {}
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~ContentEncAESSettings() {}
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unsigned long long cipher_mode;
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};
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// ContentEncryption element names
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struct ContentEncryption {
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ContentEncryption();
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~ContentEncryption();
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unsigned long long algo;
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unsigned char* key_id;
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long long key_id_len;
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unsigned char* signature;
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long long signature_len;
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unsigned char* sig_key_id;
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long long sig_key_id_len;
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unsigned long long sig_algo;
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unsigned long long sig_hash_algo;
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ContentEncAESSettings aes_settings;
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};
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// Returns ContentCompression represented by |idx|. Returns NULL if |idx|
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// is out of bounds.
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const ContentCompression* GetCompressionByIndex(unsigned long idx) const;
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// Returns number of ContentCompression elements in this ContentEncoding
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// element.
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unsigned long GetCompressionCount() const;
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// Parses the ContentCompression element from |pReader|. |start| is the
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// starting offset of the ContentCompression payload. |size| is the size in
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// bytes of the ContentCompression payload. |compression| is where the parsed
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// values will be stored.
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long ParseCompressionEntry(long long start,
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long long size,
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IMkvReader* pReader,
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ContentCompression* compression);
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// Returns ContentEncryption represented by |idx|. Returns NULL if |idx|
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// is out of bounds.
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const ContentEncryption* GetEncryptionByIndex(unsigned long idx) const;
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// Returns number of ContentEncryption elements in this ContentEncoding
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// element.
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unsigned long GetEncryptionCount() const;
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// Parses the ContentEncAESSettings element from |pReader|. |start| is the
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// starting offset of the ContentEncAESSettings payload. |size| is the
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// size in bytes of the ContentEncAESSettings payload. |encryption| is
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// where the parsed values will be stored.
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long ParseContentEncAESSettingsEntry(long long start,
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long long size,
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IMkvReader* pReader,
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ContentEncAESSettings* aes);
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// Parses the ContentEncoding element from |pReader|. |start| is the
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// starting offset of the ContentEncoding payload. |size| is the size in
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// bytes of the ContentEncoding payload. Returns true on success.
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long ParseContentEncodingEntry(long long start,
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long long size,
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IMkvReader* pReader);
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// Parses the ContentEncryption element from |pReader|. |start| is the
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// starting offset of the ContentEncryption payload. |size| is the size in
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// bytes of the ContentEncryption payload. |encryption| is where the parsed
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// values will be stored.
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long ParseEncryptionEntry(long long start,
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long long size,
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IMkvReader* pReader,
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ContentEncryption* encryption);
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unsigned long long encoding_order() const { return encoding_order_; }
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unsigned long long encoding_scope() const { return encoding_scope_; }
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unsigned long long encoding_type() const { return encoding_type_; }
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private:
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// Member variables for list of ContentCompression elements.
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ContentCompression** compression_entries_;
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ContentCompression** compression_entries_end_;
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// Member variables for list of ContentEncryption elements.
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ContentEncryption** encryption_entries_;
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ContentEncryption** encryption_entries_end_;
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// ContentEncoding element names
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unsigned long long encoding_order_;
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unsigned long long encoding_scope_;
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unsigned long long encoding_type_;
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// LIBWEBM_DISALLOW_COPY_AND_ASSIGN(ContentEncoding);
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ContentEncoding(const ContentEncoding&);
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ContentEncoding& operator=(const ContentEncoding&);
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};
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class Track
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{
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Track(const Track&);
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Track& operator=(const Track&);
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public:
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class Info;
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static long Create(
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Segment*,
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const Info&,
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long long element_start,
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long long element_size,
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Track*&);
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enum Type {
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kVideo = 1,
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kAudio = 2,
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kSubtitle = 0x11,
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kMetadata = 0x21
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};
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Segment* const m_pSegment;
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const long long m_element_start;
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const long long m_element_size;
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virtual ~Track();
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long GetType() const;
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long GetNumber() const;
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unsigned long long GetUid() const;
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const char* GetNameAsUTF8() const;
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const char* GetLanguage() const;
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const char* GetCodecNameAsUTF8() const;
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const char* GetCodecId() const;
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const unsigned char* GetCodecPrivate(size_t&) const;
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bool GetLacing() const;
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unsigned long long GetDefaultDuration() const;
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const BlockEntry* GetEOS() const;
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struct Settings
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{
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long long start;
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long long size;
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};
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class Info
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{
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public:
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Info();
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~Info();
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int Copy(Info&) const;
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void Clear();
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private:
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Info(const Info&);
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Info& operator=(const Info&);
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public:
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long type;
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long number;
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unsigned long long uid;
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unsigned long long defaultDuration;
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char* nameAsUTF8;
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char* language;
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char* codecId;
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char* codecNameAsUTF8;
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unsigned char* codecPrivate;
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size_t codecPrivateSize;
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bool lacing;
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Settings settings;
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private:
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int CopyStr(char* Info::*str, Info&) const;
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};
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long GetFirst(const BlockEntry*&) const;
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long GetNext(const BlockEntry* pCurr, const BlockEntry*& pNext) const;
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virtual bool VetEntry(const BlockEntry*) const;
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virtual long Seek(long long time_ns, const BlockEntry*&) const;
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const ContentEncoding* GetContentEncodingByIndex(unsigned long idx) const;
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unsigned long GetContentEncodingCount() const;
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long ParseContentEncodingsEntry(long long start, long long size);
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protected:
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Track(
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Segment*,
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long long element_start,
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long long element_size);
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Info m_info;
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class EOSBlock : public BlockEntry
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{
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public:
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EOSBlock();
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Kind GetKind() const;
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const Block* GetBlock() const;
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};
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EOSBlock m_eos;
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private:
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ContentEncoding** content_encoding_entries_;
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ContentEncoding** content_encoding_entries_end_;
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};
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class VideoTrack : public Track
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{
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VideoTrack(const VideoTrack&);
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VideoTrack& operator=(const VideoTrack&);
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VideoTrack(
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Segment*,
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long long element_start,
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long long element_size);
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public:
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static long Parse(
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Segment*,
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const Info&,
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long long element_start,
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long long element_size,
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VideoTrack*&);
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long long GetWidth() const;
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long long GetHeight() const;
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double GetFrameRate() const;
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bool VetEntry(const BlockEntry*) const;
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long Seek(long long time_ns, const BlockEntry*&) const;
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private:
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long long m_width;
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long long m_height;
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double m_rate;
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};
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class AudioTrack : public Track
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{
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AudioTrack(const AudioTrack&);
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AudioTrack& operator=(const AudioTrack&);
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AudioTrack(
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Segment*,
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long long element_start,
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long long element_size);
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public:
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static long Parse(
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Segment*,
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const Info&,
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long long element_start,
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long long element_size,
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AudioTrack*&);
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double GetSamplingRate() const;
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long long GetChannels() const;
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long long GetBitDepth() const;
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private:
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double m_rate;
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long long m_channels;
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long long m_bitDepth;
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};
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class Tracks
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{
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Tracks(const Tracks&);
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Tracks& operator=(const Tracks&);
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public:
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Segment* const m_pSegment;
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const long long m_start;
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const long long m_size;
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const long long m_element_start;
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const long long m_element_size;
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Tracks(
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Segment*,
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long long start,
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long long size,
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long long element_start,
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long long element_size);
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~Tracks();
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long Parse();
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unsigned long GetTracksCount() const;
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const Track* GetTrackByNumber(long tn) const;
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const Track* GetTrackByIndex(unsigned long idx) const;
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private:
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Track** m_trackEntries;
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Track** m_trackEntriesEnd;
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long ParseTrackEntry(
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long long payload_start,
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long long payload_size,
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long long element_start,
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long long element_size,
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Track*&) const;
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};
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class Chapters
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{
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Chapters(const Chapters&);
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Chapters& operator=(const Chapters&);
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public:
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Segment* const m_pSegment;
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const long long m_start;
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const long long m_size;
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const long long m_element_start;
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const long long m_element_size;
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Chapters(
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Segment*,
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long long payload_start,
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long long payload_size,
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long long element_start,
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long long element_size);
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~Chapters();
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long Parse();
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class Atom;
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class Edition;
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class Display
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{
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friend class Atom;
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Display();
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Display(const Display&);
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~Display();
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Display& operator=(const Display&);
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public:
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const char* GetString() const;
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const char* GetLanguage() const;
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const char* GetCountry() const;
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private:
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void Init();
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void ShallowCopy(Display&) const;
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void Clear();
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long Parse(IMkvReader*, long long pos, long long size);
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char* m_string;
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char* m_language;
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char* m_country;
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};
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class Atom
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{
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friend class Edition;
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Atom();
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Atom(const Atom&);
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~Atom();
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Atom& operator=(const Atom&);
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public:
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unsigned long long GetUID() const;
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const char* GetStringUID() const;
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long long GetStartTimecode() const;
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long long GetStopTimecode() const;
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long long GetStartTime(const Chapters*) const;
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long long GetStopTime(const Chapters*) const;
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int GetDisplayCount() const;
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const Display* GetDisplay(int index) const;
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private:
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void Init();
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void ShallowCopy(Atom&) const;
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void Clear();
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long Parse(IMkvReader*, long long pos, long long size);
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static long long GetTime(const Chapters*, long long timecode);
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long ParseDisplay(IMkvReader*, long long pos, long long size);
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bool ExpandDisplaysArray();
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char* m_string_uid;
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unsigned long long m_uid;
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long long m_start_timecode;
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long long m_stop_timecode;
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Display* m_displays;
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int m_displays_size;
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int m_displays_count;
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};
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class Edition
|
|
{
|
|
friend class Chapters;
|
|
Edition();
|
|
Edition(const Edition&);
|
|
~Edition();
|
|
Edition& operator=(const Edition&);
|
|
public:
|
|
int GetAtomCount() const;
|
|
const Atom* GetAtom(int index) const;
|
|
private:
|
|
void Init();
|
|
void ShallowCopy(Edition&) const;
|
|
void Clear();
|
|
long Parse(IMkvReader*, long long pos, long long size);
|
|
|
|
long ParseAtom(IMkvReader*, long long pos, long long size);
|
|
bool ExpandAtomsArray();
|
|
|
|
Atom* m_atoms;
|
|
int m_atoms_size;
|
|
int m_atoms_count;
|
|
};
|
|
|
|
int GetEditionCount() const;
|
|
const Edition* GetEdition(int index) const;
|
|
|
|
private:
|
|
long ParseEdition(long long pos, long long size);
|
|
bool ExpandEditionsArray();
|
|
|
|
Edition* m_editions;
|
|
int m_editions_size;
|
|
int m_editions_count;
|
|
|
|
};
|
|
|
|
|
|
class SegmentInfo
|
|
{
|
|
SegmentInfo(const SegmentInfo&);
|
|
SegmentInfo& operator=(const SegmentInfo&);
|
|
|
|
public:
|
|
Segment* const m_pSegment;
|
|
const long long m_start;
|
|
const long long m_size;
|
|
const long long m_element_start;
|
|
const long long m_element_size;
|
|
|
|
SegmentInfo(
|
|
Segment*,
|
|
long long start,
|
|
long long size,
|
|
long long element_start,
|
|
long long element_size);
|
|
|
|
~SegmentInfo();
|
|
|
|
long Parse();
|
|
|
|
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 SeekHead
|
|
{
|
|
SeekHead(const SeekHead&);
|
|
SeekHead& operator=(const SeekHead&);
|
|
|
|
public:
|
|
Segment* const m_pSegment;
|
|
const long long m_start;
|
|
const long long m_size;
|
|
const long long m_element_start;
|
|
const long long m_element_size;
|
|
|
|
SeekHead(
|
|
Segment*,
|
|
long long start,
|
|
long long size,
|
|
long long element_start,
|
|
long long element_size);
|
|
|
|
~SeekHead();
|
|
|
|
long Parse();
|
|
|
|
struct Entry
|
|
{
|
|
//the SeekHead entry payload
|
|
long long id;
|
|
long long pos;
|
|
|
|
//absolute pos of SeekEntry ID
|
|
long long element_start;
|
|
|
|
//SeekEntry ID size + size size + payload
|
|
long long element_size;
|
|
};
|
|
|
|
int GetCount() const;
|
|
const Entry* GetEntry(int idx) const;
|
|
|
|
struct VoidElement
|
|
{
|
|
//absolute pos of Void ID
|
|
long long element_start;
|
|
|
|
//ID size + size size + payload size
|
|
long long element_size;
|
|
};
|
|
|
|
int GetVoidElementCount() const;
|
|
const VoidElement* GetVoidElement(int idx) const;
|
|
|
|
private:
|
|
Entry* m_entries;
|
|
int m_entry_count;
|
|
|
|
VoidElement* m_void_elements;
|
|
int m_void_element_count;
|
|
|
|
static bool ParseEntry(
|
|
IMkvReader*,
|
|
long long pos, //payload
|
|
long long size,
|
|
Entry*);
|
|
|
|
};
|
|
|
|
class Cues;
|
|
class CuePoint
|
|
{
|
|
friend class Cues;
|
|
|
|
CuePoint(long, long long);
|
|
~CuePoint();
|
|
|
|
CuePoint(const CuePoint&);
|
|
CuePoint& operator=(const CuePoint&);
|
|
|
|
public:
|
|
long long m_element_start;
|
|
long long m_element_size;
|
|
|
|
void Load(IMkvReader*);
|
|
|
|
long long GetTimeCode() const; //absolute but unscaled
|
|
long long GetTime(const Segment*) const; //absolute and scaled (ns units)
|
|
|
|
struct TrackPosition
|
|
{
|
|
long long m_track;
|
|
long long m_pos; //of cluster
|
|
long long m_block;
|
|
//codec_state //defaults to 0
|
|
//reference = clusters containing req'd referenced blocks
|
|
// reftime = timecode of the referenced block
|
|
|
|
void Parse(IMkvReader*, long long, long long);
|
|
};
|
|
|
|
const TrackPosition* Find(const Track*) const;
|
|
|
|
private:
|
|
const long m_index;
|
|
long long m_timecode;
|
|
TrackPosition* m_track_positions;
|
|
size_t m_track_positions_count;
|
|
|
|
};
|
|
|
|
|
|
class Cues
|
|
{
|
|
friend class Segment;
|
|
|
|
Cues(
|
|
Segment*,
|
|
long long start,
|
|
long long size,
|
|
long long element_start,
|
|
long long element_size);
|
|
~Cues();
|
|
|
|
Cues(const Cues&);
|
|
Cues& operator=(const Cues&);
|
|
|
|
public:
|
|
Segment* const m_pSegment;
|
|
const long long m_start;
|
|
const long long m_size;
|
|
const long long m_element_start;
|
|
const long long m_element_size;
|
|
|
|
bool Find( //lower bound of time_ns
|
|
long long time_ns,
|
|
const Track*,
|
|
const CuePoint*&,
|
|
const CuePoint::TrackPosition*&) const;
|
|
|
|
#if 0
|
|
bool FindNext( //upper_bound of time_ns
|
|
long long time_ns,
|
|
const Track*,
|
|
const CuePoint*&,
|
|
const CuePoint::TrackPosition*&) const;
|
|
#endif
|
|
|
|
const CuePoint* GetFirst() const;
|
|
const CuePoint* GetLast() const;
|
|
const CuePoint* GetNext(const CuePoint*) const;
|
|
|
|
const BlockEntry* GetBlock(
|
|
const CuePoint*,
|
|
const CuePoint::TrackPosition*) const;
|
|
|
|
bool LoadCuePoint() const;
|
|
long GetCount() const; //loaded only
|
|
//long GetTotal() const; //loaded + preloaded
|
|
bool DoneParsing() const;
|
|
|
|
private:
|
|
void Init() const;
|
|
void PreloadCuePoint(long&, long long) const;
|
|
|
|
mutable CuePoint** m_cue_points;
|
|
mutable long m_count;
|
|
mutable long m_preload_count;
|
|
mutable long long m_pos;
|
|
|
|
};
|
|
|
|
|
|
class Cluster
|
|
{
|
|
friend class Segment;
|
|
|
|
Cluster(const Cluster&);
|
|
Cluster& operator=(const Cluster&);
|
|
|
|
public:
|
|
Segment* const m_pSegment;
|
|
|
|
public:
|
|
static Cluster* Create(
|
|
Segment*,
|
|
long index, //index in segment
|
|
long long off); //offset relative to segment
|
|
//long long element_size);
|
|
|
|
Cluster(); //EndOfStream
|
|
~Cluster();
|
|
|
|
bool EOS() const;
|
|
|
|
long long GetTimeCode() const; //absolute, but not scaled
|
|
long long GetTime() const; //absolute, and scaled (nanosecond units)
|
|
long long GetFirstTime() const; //time (ns) of first (earliest) block
|
|
long long GetLastTime() const; //time (ns) of last (latest) block
|
|
|
|
long GetFirst(const BlockEntry*&) const;
|
|
long GetLast(const BlockEntry*&) const;
|
|
long GetNext(const BlockEntry* curr, const BlockEntry*& next) const;
|
|
|
|
const BlockEntry* GetEntry(const Track*, long long ns = -1) const;
|
|
const BlockEntry* GetEntry(
|
|
const CuePoint&,
|
|
const CuePoint::TrackPosition&) const;
|
|
//const BlockEntry* GetMaxKey(const VideoTrack*) const;
|
|
|
|
// static bool HasBlockEntries(const Segment*, long long);
|
|
|
|
static long HasBlockEntries(
|
|
const Segment*,
|
|
long long idoff,
|
|
long long& pos,
|
|
long& size);
|
|
|
|
long GetEntryCount() const;
|
|
|
|
long Load(long long& pos, long& size) const;
|
|
|
|
long Parse(long long& pos, long& size) const;
|
|
long GetEntry(long index, const mkvparser::BlockEntry*&) const;
|
|
|
|
protected:
|
|
Cluster(
|
|
Segment*,
|
|
long index,
|
|
long long element_start);
|
|
//long long element_size);
|
|
|
|
public:
|
|
const long long m_element_start;
|
|
long long GetPosition() const; //offset relative to segment
|
|
|
|
long GetIndex() const;
|
|
long long GetElementSize() const;
|
|
//long long GetPayloadSize() const;
|
|
|
|
//long long Unparsed() const;
|
|
|
|
private:
|
|
long m_index;
|
|
mutable long long m_pos;
|
|
//mutable long long m_size;
|
|
mutable long long m_element_size;
|
|
mutable long long m_timecode;
|
|
mutable BlockEntry** m_entries;
|
|
mutable long m_entries_size;
|
|
mutable long m_entries_count;
|
|
|
|
long ParseSimpleBlock(long long, long long&, long&);
|
|
long ParseBlockGroup(long long, long long&, long&);
|
|
|
|
long CreateBlock(long long id, long long pos, long long size);
|
|
long CreateBlockGroup(long long, long long);
|
|
long CreateSimpleBlock(long long, long long);
|
|
|
|
};
|
|
|
|
|
|
class Segment
|
|
{
|
|
friend class Cues;
|
|
friend class Track;
|
|
friend class VideoTrack;
|
|
|
|
Segment(const Segment&);
|
|
Segment& operator=(const Segment&);
|
|
|
|
private:
|
|
Segment(
|
|
IMkvReader*,
|
|
long long elem_start,
|
|
//long long elem_size,
|
|
long long pos,
|
|
long long size);
|
|
|
|
public:
|
|
IMkvReader* const m_pReader;
|
|
const long long m_element_start;
|
|
//const long long m_element_size;
|
|
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();
|
|
|
|
long Load(); //loads headers and all clusters
|
|
|
|
//for incremental loading
|
|
//long long Unparsed() const;
|
|
bool DoneParsing() const;
|
|
long long ParseHeaders(); //stops when first cluster is found
|
|
//long FindNextCluster(long long& pos, long& size) const;
|
|
long LoadCluster(long long& pos, long& size); //load one cluster
|
|
long LoadCluster();
|
|
|
|
long ParseNext(
|
|
const Cluster* pCurr,
|
|
const Cluster*& pNext,
|
|
long long& pos,
|
|
long& size);
|
|
|
|
#if 0
|
|
//This pair parses one cluster, but only changes the state of the
|
|
//segment object when the cluster is actually added to the index.
|
|
long ParseCluster(long long& cluster_pos, long long& new_pos) const;
|
|
bool AddCluster(long long cluster_pos, long long new_pos);
|
|
#endif
|
|
|
|
const SeekHead* GetSeekHead() const;
|
|
const Tracks* GetTracks() const;
|
|
const SegmentInfo* GetInfo() const;
|
|
const Cues* GetCues() const;
|
|
const Chapters* GetChapters() const;
|
|
|
|
long long GetDuration() const;
|
|
|
|
unsigned long GetCount() const;
|
|
const Cluster* GetFirst() const;
|
|
const Cluster* GetLast() const;
|
|
const Cluster* GetNext(const Cluster*);
|
|
|
|
const Cluster* FindCluster(long long time_nanoseconds) const;
|
|
//const BlockEntry* Seek(long long time_nanoseconds, const Track*) const;
|
|
|
|
const Cluster* FindOrPreloadCluster(long long pos);
|
|
|
|
long ParseCues(
|
|
long long cues_off, //offset relative to start of segment
|
|
long long& parse_pos,
|
|
long& parse_len);
|
|
|
|
private:
|
|
|
|
long long m_pos; //absolute file posn; what has been consumed so far
|
|
Cluster* m_pUnknownSize;
|
|
|
|
SeekHead* m_pSeekHead;
|
|
SegmentInfo* m_pInfo;
|
|
Tracks* m_pTracks;
|
|
Cues* m_pCues;
|
|
Chapters* m_pChapters;
|
|
Cluster** m_clusters;
|
|
long m_clusterCount; //number of entries for which m_index >= 0
|
|
long m_clusterPreloadCount; //number of entries for which m_index < 0
|
|
long m_clusterSize; //array size
|
|
|
|
long DoLoadCluster(long long&, long&);
|
|
long DoLoadClusterUnknownSize(long long&, long&);
|
|
long DoParseNext(const Cluster*&, long long&, long&);
|
|
|
|
void AppendCluster(Cluster*);
|
|
void PreloadCluster(Cluster*, ptrdiff_t);
|
|
|
|
//void ParseSeekHead(long long pos, long long size);
|
|
//void ParseSeekEntry(long long pos, long long size);
|
|
//void ParseCues(long long);
|
|
|
|
const BlockEntry* GetBlock(
|
|
const CuePoint&,
|
|
const CuePoint::TrackPosition&);
|
|
|
|
};
|
|
|
|
} //end namespace mkvparser
|
|
|
|
inline long mkvparser::Segment::LoadCluster()
|
|
{
|
|
long long pos;
|
|
long size;
|
|
|
|
return LoadCluster(pos, size);
|
|
}
|
|
|
|
#endif //MKVPARSER_HPP
|