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 _LARGEFILE_SOURCE
  28 #define _FILE_OFFSET_BITS 64
  29
  30 #define CLSIZE    1048576
  31 #define CHECK(x)  do { if ((x) < 0) return -1; } while (0)
  32
  33 typedef struct mk_Context_s mk_Context;
  34 typedef struct mk_Seek_s mk_Seek;
  35 typedef struct mk_Chapter_s mk_Chapter;
  36
  37 struct mk_Context_s {
  38     mk_Context *next, **prev, *parent;
  39     mk_Writer  *owner;
  40     unsigned      id;
  41
  42     void          *data;
  43     unsigned      d_cur, d_max;
  44 };
  45
  46 struct mk_Writer_s {
  47   FILE            *fp;
  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     uint64_t      timecode;
  82   } cue_point;
  83
  84   struct {
  85     mk_Context    *context;
  86     uint64_t      block_count;
  87     uint64_t      count;
  88     uint64_t      pointer;
  89     int64_t       tc_scaled;
  90   } cluster;
  91
  92   int chapter_uid;
  93   uint8_t vlc_compat;
  94 };
  95
  96 struct mk_Track_s {
  97   uint8_t         track_id;
  98
  99 //  mk_Context      *frame;
 100 //  int64_t         frame_tc;
 101   int64_t         prev_frame_tc_scaled;
 102   int64_t         max_frame_tc;
 103   uint8_t         in_frame;
 104 //  uint8_t         keyframe;
 105   uint64_t        default_duration;
 106   uint8_t         cue_flag;
 107
 108   struct {
 109     mk_Context    *data;
 110     int64_t       timecode;
 111     uint8_t       keyframe;
 112     uint8_t       lacing;
 113     uint8_t       lacing_num_frames;
 114     int32_t       *lacing_sizes;
 115   } frame;
 116 };
 117
 118 mk_Context *mk_createContext(mk_Writer *w, mk_Context *parent, unsigned id);
 119 int  mk_writeUInt(mk_Context *c, unsigned id, uint64_t ui);
 120 int  mk_writeFloat(mk_Context *c, unsigned id, float f);
 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_flushContextData(mk_Context *c);
 124 int  mk_closeContext(mk_Context *c, int64_t *off);
 125 int  mk_writeSeek(mk_Writer *w, int64_t *pointer);
 126 int  mk_writeTracks(mk_Writer *w, mk_Context *tracks);
 127 int  mk_writeChapters(mk_Writer *w);
 128 static unsigned   mk_ebmlSizeSize(uint64_t s);
 129
 130 #endif