Lib/QMatroska/Matroska.h

   1 /* Matroska.h */
   2 /* 2009/05/25 */
   3
   4 #pragma once
   5
   6 #ifdef __cplusplus
   7 extern "C"
   8 {
   9 #endif /* __cplusplus */
  10
  11 /* */
  12
  13 struct QM_TrackVideo {
  14
  15         INT32  PixelWidth;
  16         INT32  PixelHeight;
  17         DOUBLE FrameRate;
  18
  19 }; /* QM_TrackVideo */
  20
  21 typedef struct QM_TrackVideo QM_TrackVideo_t;
  22
  23 struct QM_TrackAudio {
  24
  25         DOUBLE SamplingFrequency;
  26         INT32  Channels;
  27         INT32  BitDepth;
  28
  29 }; /* QM_TrackAudio */
  30
  31 typedef struct QM_TrackAudio QM_TrackAudio_t;
  32
  33 struct QM_Track {
  34
  35         INT32 TrackNo;
  36         INT32 TrackType;
  37         INT32 TrackLacing;
  38
  39         const char* CodecId;
  40
  41         INT64 TrackDuration;
  42
  43         const QM_TrackVideo_t* Video;
  44         const QM_TrackAudio_t* Audio;
  45
  46         const VOID* CodecPrivate;
  47         INT32       CodecPrivateSize;
  48
  49 }; /* QM_Track */
  50
  51 typedef struct QM_Track QM_Track_t;
  52
  53 /* */
  54
  55 struct QM_QuePoint {
  56
  57         INT64 CueTime;
  58
  59         INT32 TrackNo;
  60         INT64 ClusterPos;
  61
  62 }; /* QM_QuePoint */
  63
  64 typedef struct QM_QuePoint QM_QuePoint_t;
  65
  66 /* */
  67
  68 #define QM_FLAGS_KEYFRAME 0x80
  69
  70 struct QM_Block {
  71
  72         INT64 ClusterTime;
  73
  74         INT32 Duration;
  75         INT32 Reference;
  76
  77         INT32 TrackNo;
  78         INT32 TimeDelta;
  79
  80         INT32 Flags;
  81
  82         const VOID* Payload;
  83         INT32       Size;
  84
  85 }; /* QM_Block */
  86
  87 typedef struct QM_Block QM_Block_t;
  88
  89 /* */
  90
  91 struct QM_Frame {
  92
  93         const VOID* Payload;
  94         INT32       Size;
  95
  96 }; /* QM_Frame */
  97
  98 typedef struct QM_Frame QM_Frame_t;
  99
 100 /* */
 101
 102 struct QM_Reader;
 103
 104 typedef struct QM_Reader QM_Reader_t;
 105
 106 QM_Reader_t* QM_CreateReader(void);
 107
 108 void QM_ReleaseReader(QM_Reader_t* t);
 109
 110 BOOL QM_OpenReader(
 111         QM_Reader_t* t,
 112         const WCHAR* path);
 113
 114 BOOL QM_OpenReader_IStream(
 115         QM_Reader_t* t,
 116         IStream*     p);
 117
 118 INT64 QM_GetTimeCodeScale(
 119         QM_Reader_t* t);
 120
 121 DOUBLE QM_GetDuraion(
 122         QM_Reader_t* t);
 123
 124 INT32 QM_GetTrackCount(
 125         QM_Reader_t* t);
 126
 127 const QM_Track_t* QM_GetTracks(
 128         QM_Reader_t* t);
 129
 130 INT32 QM_ReadBlock(
 131         QM_Reader_t* t,
 132         QM_Block_t*  block);
 133
 134 BOOL QM_SeekCluster(
 135         QM_Reader_t* t,
 136         INT64        pos);
 137
 138 /* */
 139
 140 struct QM_FrameExtractor;
 141
 142 typedef struct QM_FrameExtractor QM_FrameExtractor_t;
 143
 144 QM_FrameExtractor_t* QM_CreateFrameExtractor(void);
 145
 146 void QM_ReleaseFrameExtractor(QM_FrameExtractor_t* t);
 147
 148 BOOL QM_DecodeLacingBlock(
 149         QM_FrameExtractor_t* t,
 150         const QM_Block_t*    block);
 151
 152 INT32 QM_ReadFrame(
 153         QM_FrameExtractor_t* t,
 154         QM_Frame_t*          frame);
 155
 156 /* */
 157
 158 #ifdef __cplusplus
 159 }
 160 #endif /* __cplusplus */
 161