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Diffstat (limited to 'thirdparty/libsimplewebm/libwebm/mkvparser/mkvparser.h')
| -rw-r--r-- | thirdparty/libsimplewebm/libwebm/mkvparser/mkvparser.h | 1145 |
1 files changed, 0 insertions, 1145 deletions
diff --git a/thirdparty/libsimplewebm/libwebm/mkvparser/mkvparser.h b/thirdparty/libsimplewebm/libwebm/mkvparser/mkvparser.h deleted file mode 100644 index 6dce7e50ba..0000000000 --- a/thirdparty/libsimplewebm/libwebm/mkvparser/mkvparser.h +++ /dev/null @@ -1,1145 +0,0 @@ -// Copyright (c) 2012 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_MKVPARSER_H_ -#define MKVPARSER_MKVPARSER_H_ - -#include <cstddef> - -namespace mkvparser { - -const int E_PARSE_FAILED = -1; -const int E_FILE_FORMAT_INVALID = -2; -const int E_BUFFER_NOT_FULL = -3; - -class IMkvReader { - public: - virtual int Read(long long pos, long len, unsigned char* buf) = 0; - virtual int Length(long long* total, long long* available) = 0; - - public: - virtual ~IMkvReader(); -}; - -template <typename Type> -Type* SafeArrayAlloc(unsigned long long num_elements, - unsigned long long element_size); -long long GetUIntLength(IMkvReader*, long long, long&); -long long ReadUInt(IMkvReader*, long long, long&); -long long ReadID(IMkvReader* pReader, long long pos, long& len); -long long UnserializeUInt(IMkvReader*, long long pos, long long size); - -long UnserializeFloat(IMkvReader*, long long pos, long long size, double&); -long UnserializeInt(IMkvReader*, long long pos, long long size, - long long& result); - -long UnserializeString(IMkvReader*, long long pos, long long size, char*& str); - -long ParseElementHeader(IMkvReader* pReader, - long long& pos, // consume id and size fields - long long stop, // if you know size of element's parent - long long& id, long long& size); - -bool Match(IMkvReader*, long long&, unsigned long, long long&); -bool Match(IMkvReader*, long long&, unsigned long, unsigned char*&, size_t&); - -void GetVersion(int& major, int& minor, int& build, int& revision); - -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&); - void Init(); -}; - -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, long long discard_padding); - ~Block(); - - long Parse(const Cluster*); - - long long GetTrackNumber() const; - long long GetTimeCode(const Cluster*) const; // absolute, but not scaled - long long GetTime(const Cluster*) const; // absolute, and scaled (ns) - bool IsKey() const; - void SetKey(bool); - bool IsInvisible() const; - - enum Lacing { kLacingNone, kLacingXiph, kLacingFixed, kLacingEbml }; - Lacing GetLacing() const; - - int GetFrameCount() const; // to index frames: [0, count) - - struct Frame { - long long pos; // absolute offset - long len; - - long Read(IMkvReader*, unsigned char*) const; - }; - - const Frame& GetFrame(int frame_index) const; - - long long GetDiscardPadding() const; - - private: - long long m_track; // Track::Number() - short m_timecode; // relative to cluster - unsigned char m_flags; - - Frame* m_frames; - int m_frame_count; - - protected: - const long long m_discard_padding; -}; - -class BlockEntry { - BlockEntry(const BlockEntry&); - BlockEntry& operator=(const BlockEntry&); - - protected: - BlockEntry(Cluster*, long index); - - public: - virtual ~BlockEntry(); - - bool EOS() const { return (GetKind() == kBlockEOS); } - const Cluster* GetCluster() const; - long GetIndex() const; - virtual const Block* GetBlock() const = 0; - - enum Kind { kBlockEOS, kBlockSimple, kBlockGroup }; - virtual Kind GetKind() const = 0; - - protected: - Cluster* const m_pCluster; - const long m_index; -}; - -class SimpleBlock : public BlockEntry { - SimpleBlock(const SimpleBlock&); - SimpleBlock& operator=(const SimpleBlock&); - - public: - SimpleBlock(Cluster*, long index, long long start, long long size); - long Parse(); - - Kind GetKind() const; - const Block* GetBlock() const; - - protected: - Block m_block; -}; - -class BlockGroup : public BlockEntry { - BlockGroup(const BlockGroup&); - BlockGroup& operator=(const BlockGroup&); - - public: - BlockGroup(Cluster*, long index, - long long block_start, // absolute pos of block's payload - long long block_size, // size of block's payload - long long prev, long long next, long long duration, - long long discard_padding); - - long Parse(); - - Kind GetKind() const; - const Block* GetBlock() const; - - long long GetPrevTimeCode() const; // relative to block's time - long long GetNextTimeCode() const; // as above - long long GetDurationTimeCode() const; - - private: - Block m_block; - const long long m_prev; - const long long m_next; - const long long m_duration; -}; - -/////////////////////////////////////////////////////////////// -// ContentEncoding element -// Elements used to describe if the track data has been encrypted or -// compressed with zlib or header stripping. -class ContentEncoding { - public: - enum { kCTR = 1 }; - - ContentEncoding(); - ~ContentEncoding(); - - // ContentCompression element names - struct ContentCompression { - ContentCompression(); - ~ContentCompression(); - - unsigned long long algo; - unsigned char* settings; - long long settings_len; - }; - - // ContentEncAESSettings element names - struct ContentEncAESSettings { - ContentEncAESSettings() : cipher_mode(kCTR) {} - ~ContentEncAESSettings() {} - - unsigned long long cipher_mode; - }; - - // ContentEncryption element names - struct ContentEncryption { - ContentEncryption(); - ~ContentEncryption(); - - unsigned long long algo; - unsigned char* key_id; - long long key_id_len; - unsigned char* signature; - long long signature_len; - unsigned char* sig_key_id; - long long sig_key_id_len; - unsigned long long sig_algo; - unsigned long long sig_hash_algo; - - ContentEncAESSettings aes_settings; - }; - - // Returns ContentCompression represented by |idx|. Returns NULL if |idx| - // is out of bounds. - const ContentCompression* GetCompressionByIndex(unsigned long idx) const; - - // Returns number of ContentCompression elements in this ContentEncoding - // element. - unsigned long GetCompressionCount() const; - - // Parses the ContentCompression element from |pReader|. |start| is the - // starting offset of the ContentCompression payload. |size| is the size in - // bytes of the ContentCompression payload. |compression| is where the parsed - // values will be stored. - long ParseCompressionEntry(long long start, long long size, - IMkvReader* pReader, - ContentCompression* compression); - - // Returns ContentEncryption represented by |idx|. Returns NULL if |idx| - // is out of bounds. - const ContentEncryption* GetEncryptionByIndex(unsigned long idx) const; - - // Returns number of ContentEncryption elements in this ContentEncoding - // element. - unsigned long GetEncryptionCount() const; - - // Parses the ContentEncAESSettings element from |pReader|. |start| is the - // starting offset of the ContentEncAESSettings payload. |size| is the - // size in bytes of the ContentEncAESSettings payload. |encryption| is - // where the parsed values will be stored. - long ParseContentEncAESSettingsEntry(long long start, long long size, - IMkvReader* pReader, - ContentEncAESSettings* aes); - - // Parses the ContentEncoding element from |pReader|. |start| is the - // starting offset of the ContentEncoding payload. |size| is the size in - // bytes of the ContentEncoding payload. Returns true on success. - long ParseContentEncodingEntry(long long start, long long size, - IMkvReader* pReader); - - // Parses the ContentEncryption element from |pReader|. |start| is the - // starting offset of the ContentEncryption payload. |size| is the size in - // bytes of the ContentEncryption payload. |encryption| is where the parsed - // values will be stored. - long ParseEncryptionEntry(long long start, long long size, - IMkvReader* pReader, ContentEncryption* encryption); - - unsigned long long encoding_order() const { return encoding_order_; } - unsigned long long encoding_scope() const { return encoding_scope_; } - unsigned long long encoding_type() const { return encoding_type_; } - - private: - // Member variables for list of ContentCompression elements. - ContentCompression** compression_entries_; - ContentCompression** compression_entries_end_; - - // Member variables for list of ContentEncryption elements. - ContentEncryption** encryption_entries_; - ContentEncryption** encryption_entries_end_; - - // ContentEncoding element names - unsigned long long encoding_order_; - unsigned long long encoding_scope_; - unsigned long long encoding_type_; - - // LIBWEBM_DISALLOW_COPY_AND_ASSIGN(ContentEncoding); - ContentEncoding(const ContentEncoding&); - ContentEncoding& operator=(const ContentEncoding&); -}; - -class Track { - Track(const Track&); - Track& operator=(const Track&); - - public: - class Info; - static long Create(Segment*, const Info&, long long element_start, - long long element_size, Track*&); - - enum Type { kVideo = 1, kAudio = 2, kSubtitle = 0x11, kMetadata = 0x21 }; - - Segment* const m_pSegment; - const long long m_element_start; - const long long m_element_size; - virtual ~Track(); - - long GetType() const; - long GetNumber() const; - unsigned long long GetUid() const; - const char* GetNameAsUTF8() const; - const char* GetLanguage() const; - const char* GetCodecNameAsUTF8() const; - const char* GetCodecId() const; - const unsigned char* GetCodecPrivate(size_t&) const; - bool GetLacing() const; - unsigned long long GetDefaultDuration() const; - unsigned long long GetCodecDelay() const; - unsigned long long GetSeekPreRoll() const; - - const BlockEntry* GetEOS() const; - - struct Settings { - long long start; - long long size; - }; - - class Info { - public: - Info(); - ~Info(); - int Copy(Info&) const; - void Clear(); - long type; - long number; - unsigned long long uid; - unsigned long long defaultDuration; - unsigned long long codecDelay; - unsigned long long seekPreRoll; - char* nameAsUTF8; - char* language; - char* codecId; - char* codecNameAsUTF8; - unsigned char* codecPrivate; - size_t codecPrivateSize; - bool lacing; - Settings settings; - - private: - Info(const Info&); - Info& operator=(const Info&); - int CopyStr(char* Info::*str, Info&) const; - }; - - long GetFirst(const BlockEntry*&) const; - long GetNext(const BlockEntry* pCurr, const BlockEntry*& pNext) const; - virtual bool VetEntry(const BlockEntry*) const; - virtual long Seek(long long time_ns, const BlockEntry*&) const; - - const ContentEncoding* GetContentEncodingByIndex(unsigned long idx) const; - unsigned long GetContentEncodingCount() const; - - long ParseContentEncodingsEntry(long long start, long long size); - - protected: - Track(Segment*, long long element_start, long long element_size); - - Info m_info; - - class EOSBlock : public BlockEntry { - public: - EOSBlock(); - - Kind GetKind() const; - const Block* GetBlock() const; - }; - - EOSBlock m_eos; - - private: - ContentEncoding** content_encoding_entries_; - ContentEncoding** content_encoding_entries_end_; -}; - -struct PrimaryChromaticity { - PrimaryChromaticity() : x(0), y(0) {} - ~PrimaryChromaticity() {} - static bool Parse(IMkvReader* reader, long long read_pos, - long long value_size, bool is_x, - PrimaryChromaticity** chromaticity); - float x; - float y; -}; - -struct MasteringMetadata { - static const float kValueNotPresent; - - MasteringMetadata() - : r(NULL), - g(NULL), - b(NULL), - white_point(NULL), - luminance_max(kValueNotPresent), - luminance_min(kValueNotPresent) {} - ~MasteringMetadata() { - delete r; - delete g; - delete b; - delete white_point; - } - - static bool Parse(IMkvReader* reader, long long element_start, - long long element_size, - MasteringMetadata** mastering_metadata); - - PrimaryChromaticity* r; - PrimaryChromaticity* g; - PrimaryChromaticity* b; - PrimaryChromaticity* white_point; - float luminance_max; - float luminance_min; -}; - -struct Colour { - static const long long kValueNotPresent; - - // Unless otherwise noted all values assigned upon construction are the - // equivalent of unspecified/default. - Colour() - : matrix_coefficients(kValueNotPresent), - bits_per_channel(kValueNotPresent), - chroma_subsampling_horz(kValueNotPresent), - chroma_subsampling_vert(kValueNotPresent), - cb_subsampling_horz(kValueNotPresent), - cb_subsampling_vert(kValueNotPresent), - chroma_siting_horz(kValueNotPresent), - chroma_siting_vert(kValueNotPresent), - range(kValueNotPresent), - transfer_characteristics(kValueNotPresent), - primaries(kValueNotPresent), - max_cll(kValueNotPresent), - max_fall(kValueNotPresent), - mastering_metadata(NULL) {} - ~Colour() { - delete mastering_metadata; - mastering_metadata = NULL; - } - - static bool Parse(IMkvReader* reader, long long element_start, - long long element_size, Colour** colour); - - long long matrix_coefficients; - long long bits_per_channel; - long long chroma_subsampling_horz; - long long chroma_subsampling_vert; - long long cb_subsampling_horz; - long long cb_subsampling_vert; - long long chroma_siting_horz; - long long chroma_siting_vert; - long long range; - long long transfer_characteristics; - long long primaries; - long long max_cll; - long long max_fall; - - MasteringMetadata* mastering_metadata; -}; - -struct Projection { - enum ProjectionType { - kTypeNotPresent = -1, - kRectangular = 0, - kEquirectangular = 1, - kCubeMap = 2, - kMesh = 3, - }; - static const float kValueNotPresent; - Projection() - : type(kTypeNotPresent), - private_data(NULL), - private_data_length(0), - pose_yaw(kValueNotPresent), - pose_pitch(kValueNotPresent), - pose_roll(kValueNotPresent) {} - ~Projection() { delete[] private_data; } - static bool Parse(IMkvReader* reader, long long element_start, - long long element_size, Projection** projection); - - ProjectionType type; - unsigned char* private_data; - size_t private_data_length; - float pose_yaw; - float pose_pitch; - float pose_roll; -}; - -class VideoTrack : public Track { - VideoTrack(const VideoTrack&); - VideoTrack& operator=(const VideoTrack&); - - VideoTrack(Segment*, long long element_start, long long element_size); - - public: - virtual ~VideoTrack(); - static long Parse(Segment*, const Info&, long long element_start, - long long element_size, VideoTrack*&); - - long long GetWidth() const; - long long GetHeight() const; - long long GetDisplayWidth() const; - long long GetDisplayHeight() const; - long long GetDisplayUnit() const; - long long GetStereoMode() const; - double GetFrameRate() const; - - bool VetEntry(const BlockEntry*) const; - long Seek(long long time_ns, const BlockEntry*&) const; - - Colour* GetColour() const; - - Projection* GetProjection() const; - - private: - long long m_width; - long long m_height; - long long m_display_width; - long long m_display_height; - long long m_display_unit; - long long m_stereo_mode; - - double m_rate; - - Colour* m_colour; - Projection* m_projection; -}; - -class AudioTrack : public Track { - AudioTrack(const AudioTrack&); - AudioTrack& operator=(const AudioTrack&); - - AudioTrack(Segment*, long long element_start, long long element_size); - - public: - static long Parse(Segment*, const Info&, long long element_start, - long long element_size, AudioTrack*&); - - double GetSamplingRate() const; - long long GetChannels() const; - long long GetBitDepth() 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; - const long long m_element_start; - const long long m_element_size; - - Tracks(Segment*, long long start, long long size, long long element_start, - long long element_size); - - ~Tracks(); - - long Parse(); - - unsigned long GetTracksCount() const; - - const Track* GetTrackByNumber(long tn) const; - const Track* GetTrackByIndex(unsigned long idx) const; - - private: - Track** m_trackEntries; - Track** m_trackEntriesEnd; - - long ParseTrackEntry(long long payload_start, long long payload_size, - long long element_start, long long element_size, - Track*&) const; -}; - -class Chapters { - Chapters(const Chapters&); - Chapters& operator=(const Chapters&); - - 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; - - Chapters(Segment*, long long payload_start, long long payload_size, - long long element_start, long long element_size); - - ~Chapters(); - - long Parse(); - - class Atom; - class Edition; - - class Display { - friend class Atom; - Display(); - Display(const Display&); - ~Display(); - Display& operator=(const Display&); - - public: - const char* GetString() const; - const char* GetLanguage() const; - const char* GetCountry() const; - - private: - void Init(); - void ShallowCopy(Display&) const; - void Clear(); - long Parse(IMkvReader*, long long pos, long long size); - - char* m_string; - char* m_language; - char* m_country; - }; - - class Atom { - friend class Edition; - Atom(); - Atom(const Atom&); - ~Atom(); - Atom& operator=(const Atom&); - - public: - unsigned long long GetUID() const; - const char* GetStringUID() const; - - long long GetStartTimecode() const; - long long GetStopTimecode() const; - - long long GetStartTime(const Chapters*) const; - long long GetStopTime(const Chapters*) const; - - int GetDisplayCount() const; - const Display* GetDisplay(int index) const; - - private: - void Init(); - void ShallowCopy(Atom&) const; - void Clear(); - long Parse(IMkvReader*, long long pos, long long size); - static long long GetTime(const Chapters*, long long timecode); - - long ParseDisplay(IMkvReader*, long long pos, long long size); - bool ExpandDisplaysArray(); - - char* m_string_uid; - unsigned long long m_uid; - long long m_start_timecode; - long long m_stop_timecode; - - Display* m_displays; - int m_displays_size; - int m_displays_count; - }; - - 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 Tags { - Tags(const Tags&); - Tags& operator=(const Tags&); - - 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; - - Tags(Segment*, long long payload_start, long long payload_size, - long long element_start, long long element_size); - - ~Tags(); - - long Parse(); - - class Tag; - class SimpleTag; - - class SimpleTag { - friend class Tag; - SimpleTag(); - SimpleTag(const SimpleTag&); - ~SimpleTag(); - SimpleTag& operator=(const SimpleTag&); - - public: - const char* GetTagName() const; - const char* GetTagString() const; - - private: - void Init(); - void ShallowCopy(SimpleTag&) const; - void Clear(); - long Parse(IMkvReader*, long long pos, long long size); - - char* m_tag_name; - char* m_tag_string; - }; - - class Tag { - friend class Tags; - Tag(); - Tag(const Tag&); - ~Tag(); - Tag& operator=(const Tag&); - - public: - int GetSimpleTagCount() const; - const SimpleTag* GetSimpleTag(int index) const; - - private: - void Init(); - void ShallowCopy(Tag&) const; - void Clear(); - long Parse(IMkvReader*, long long pos, long long size); - - long ParseSimpleTag(IMkvReader*, long long pos, long long size); - bool ExpandSimpleTagsArray(); - - SimpleTag* m_simple_tags; - int m_simple_tags_size; - int m_simple_tags_count; - }; - - int GetTagCount() const; - const Tag* GetTag(int index) const; - - private: - long ParseTag(long long pos, long long size); - bool ExpandTagsArray(); - - Tag* m_tags; - int m_tags_size; - int m_tags_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 { - 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; - - bool 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 - - bool 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; - - 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: - bool Init() const; - bool 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 long discard_padding); - long CreateBlockGroup(long long start_offset, long long size, - long long discard_padding); - 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); - - const SeekHead* GetSeekHead() const; - const Tracks* GetTracks() const; - const SegmentInfo* GetInfo() const; - const Cues* GetCues() const; - const Chapters* GetChapters() const; - const Tags* GetTags() 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; - Tags* m_pTags; - 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&); - - bool AppendCluster(Cluster*); - bool 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&); -}; - -} // namespace mkvparser - -inline long mkvparser::Segment::LoadCluster() { - long long pos; - long size; - - return LoadCluster(pos, size); -} - -#endif // MKVPARSER_MKVPARSER_H_ |