src/matroska.h

   1 /*****************************************************************************
   2  * matroska.h:
   3  *****************************************************************************
   4  * Copyright (C) 2005 x264 project
   5  * $Id: $
   6  *
   7  * Authors: Mike Matsnev
   8  *          Nathan Caldwell
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24 #ifndef _MATROSKA_H
  25 #define _MATROSKA_H 1
  26
  27 #define CLSIZE    1048576
  28 #define CHECK(x)  do { if ((x) < 0) return -1; } while (0)
  29
  30 typedef struct mk_Context_s mk_Context;
  31 typedef struct mk_Seek_s mk_Seek;
  32 typedef struct mk_Chapter_s mk_Chapter;
  33
  34 struct mk_Context_s {
  35     mk_Context *next, **prev, *parent;
  36     mk_Writer  *owner;
  37     unsigned      id;
  38
  39     void          *data;
  40     unsigned      d_cur, d_max;
  41 };
  42
  43 struct mk_Writer_s {
  44   FILE            *fp;
  45   uint64_t        f_pos;
  46   uint64_t        f_eof;
  47
  48
  49   int64_t         duration_ptr;
  50   int64_t         seekhead_ptr;
  51   int64_t         segment_ptr;
  52
  53   mk_Context      *root;
  54   mk_Context      *freelist;
  55   mk_Context      *actlist;
  56   mk_Context      *chapters;
  57   mk_Context      *edition_entry;
  58   mk_Context      *tracks;
  59   mk_Context      *cues;
  60
  61   uint64_t         def_duration;
  62   uint64_t         timescale;
  63
  64   uint8_t         wrote_header;
  65
  66   uint8_t         num_tracks;
  67   mk_Track        **tracks_arr;
  68
  69   struct {
  70     int64_t       segmentinfo;
  71     int64_t       seekhead;
  72     int64_t       tracks;
  73     int64_t       cues;
  74     int64_t       chapters;
  75     int64_t       attachments;
  76     int64_t       tags;
  77   } seek_data;
  78
  79   struct {
  80     mk_Context    *context;
  81     mk_Context    *seekhead;
  82     uint64_t      block_count;
  83     uint64_t      count;
  84     uint64_t      pointer;
  85     int64_t       tc_scaled;
  86   } cluster;
  87
  88   uint8_t vlc_compat;
  89 };
  90
  91 struct mk_Track_s {
  92   uint8_t         track_id;
  93
  94   int64_t         prev_frame_tc_scaled;
  95   int64_t         max_frame_tc;
  96   uint8_t         in_frame;
  97   uint64_t        default_duration;
  98   uint8_t         track_type;
  99   int64_t        prev_cue_pos;
 100
 101   struct {
 102     mk_Context    *data;
 103     int64_t       timecode;
 104     uint8_t       keyframe;
 105     uint8_t       lacing;
 106     uint8_t       lacing_num_frames;
 107     uint64_t      *lacing_sizes;
 108   } frame;
 109 };
 110
 111 /* EBML */
 112 mk_Context *mk_createContext(mk_Writer *w, mk_Context *parent, unsigned id);
 113 int         mk_appendContextData(mk_Context *c, const void *data, uint64_t size);
 114 int         mk_writeID(mk_Context *c, unsigned id);
 115 int         mk_writeSize(mk_Context *c, uint64_t size);
 116 int         mk_writeSSize(mk_Context *c, int64_t size);
 117 int         mk_flushContextID(mk_Context *c);
 118 int         mk_flushContextData(mk_Context *c);
 119 int         mk_closeContext(mk_Context *c, int64_t *off);
 120 void        mk_destroyContexts(mk_Writer *w);
 121 int         mk_writeStr(mk_Context *c, unsigned id, const char *str);
 122 int         mk_writeBin(mk_Context *c, unsigned id, const void *data, unsigned size);
 123 int         mk_writeUInt(mk_Context *c, unsigned id, uint64_t ui);
 124 int         mk_writeSInt(mk_Context *c, unsigned id, int64_t si);
 125 int         mk_writeFloatRaw(mk_Context *c, float f);
 126 int         mk_writeFloat(mk_Context *c, unsigned id, float f);
 127 int         mk_writeVoid(mk_Context *c, uint64_t length);
 128 unsigned    mk_ebmlSizeSize(uint64_t s);
 129 unsigned    mk_ebmlSIntSize(int64_t si);
 130 /* EBML */
 131
 132 mk_Context *mk_createContext(mk_Writer *w, mk_Context *parent, unsigned id);
 133 int         mk_writeUInt(mk_Context *c, unsigned id, uint64_t ui);
 134 int         mk_writeFloat(mk_Context *c, unsigned id, float f);
 135 int         mk_writeStr(mk_Context *c, unsigned id, const char *str);
 136 int         mk_writeBin(mk_Context *c, unsigned id, const void *data, unsigned size);
 137 int         mk_flushContextData(mk_Context *c);
 138 int         mk_closeContext(mk_Context *c, int64_t *off);
 139 int         mk_writeSeek(mk_Writer *w, mk_Context *c, unsigned seek_id, uint64_t seek_pos);
 140 int         mk_writeSeekHead(mk_Writer *w, int64_t *pointer);
 141 int         mk_writeTracks(mk_Writer *w, mk_Context *tracks);
 142 int         mk_writeChapters(mk_Writer *w);
 143 int         mk_seekFile(mk_Writer *w, uint64_t pos);
 144
 145 #endif