libavformat/nut.c

   1 /*
   2  * nut
   3  * Copyright (c) 2004-2007 Michael Niedermayer
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include "libavutil/mathematics.h"
  23 #include "libavutil/mem.h"
  24 #include "libavutil/tree.h"
  25 #include "nut.h"
  26 #include "riff.h"
  27 #include "internal.h"
  28
  29 const AVCodecTag ff_nut_subtitle_tags[] = {
  30     { AV_CODEC_ID_TEXT,             MKTAG('U', 'T', 'F', '8') },
  31     { AV_CODEC_ID_ASS,              MKTAG('S', 'S', 'A',  0 ) },
  32     { AV_CODEC_ID_ASS,              MKTAG('A', 'S', 'S',  0 ) },
  33     { AV_CODEC_ID_DVD_SUBTITLE,     MKTAG('D', 'V', 'D', 'S') },
  34     { AV_CODEC_ID_DVB_SUBTITLE,     MKTAG('D', 'V', 'B', 'S') },
  35     { AV_CODEC_ID_DVB_TELETEXT,     MKTAG('D', 'V', 'B', 'T') },
  36     { AV_CODEC_ID_NONE,             0                         }
  37 };
  38
  39 const AVCodecTag ff_nut_data_tags[] = {
  40     { AV_CODEC_ID_TEXT,             MKTAG('U', 'T', 'F', '8') },
  41     { AV_CODEC_ID_NONE,             0 }
  42 };
  43
  44 const AVCodecTag ff_nut_video_tags[] = {
  45     { AV_CODEC_ID_GIF,              MKTAG('G', 'I', 'F',  0 ) },
  46     { AV_CODEC_ID_XFACE,            MKTAG('X', 'F', 'A', 'C') },
  47     { AV_CODEC_ID_VP9,              MKTAG('V', 'P', '9', '0') },
  48     { AV_CODEC_ID_HEVC,             MKTAG('H', 'E', 'V', 'C') },
  49     { AV_CODEC_ID_CPIA,             MKTAG('C', 'P', 'i', 'A') },
  50     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 15 ) },
  51     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 15 ) },
  52     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 16 ) },
  53     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 16 ) },
  54     { AV_CODEC_ID_RAWVIDEO,         MKTAG(15 , 'B', 'G', 'R') },
  55     { AV_CODEC_ID_RAWVIDEO,         MKTAG(15 , 'R', 'G', 'B') },
  56     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 'B', 'G', 'R') },
  57     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 'R', 'G', 'B') },
  58     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 12 ) },
  59     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 12 ) },
  60     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 'B', 'G', 'R') },
  61     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 'R', 'G', 'B') },
  62     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 'A') },
  63     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B',  0 ) },
  64     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 'A') },
  65     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R',  0 ) },
  66     { AV_CODEC_ID_RAWVIDEO,         MKTAG('A', 'B', 'G', 'R') },
  67     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 0 , 'B', 'G', 'R') },
  68     { AV_CODEC_ID_RAWVIDEO,         MKTAG('A', 'R', 'G', 'B') },
  69     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 0 , 'R', 'G', 'B') },
  70     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 24 ) },
  71     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 24 ) },
  72     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '1', '1', 'P') },
  73     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '2', '2', 'P') },
  74     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '2', '2', 'P') },
  75     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '0', 'P') },
  76     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '0', 'P') },
  77     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '4', 'P') },
  78     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '4', 'P') },
  79     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', '1', 'W', '0') },
  80     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', '0', 'W', '1') },
  81     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R',  8 ) },
  82     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B',  8 ) },
  83     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R',  4 ) },
  84     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B',  4 ) },
  85     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', '4', 'B', 'Y') },
  86     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', '4', 'B', 'Y') },
  87     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 48 ) },
  88     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 48 ) },
  89     { AV_CODEC_ID_RAWVIDEO,         MKTAG(48 , 'B', 'G', 'R') },
  90     { AV_CODEC_ID_RAWVIDEO,         MKTAG(48 , 'R', 'G', 'B') },
  91     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'B', 'A', 64 ) },
  92     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'R', 'A', 64 ) },
  93     { AV_CODEC_ID_RAWVIDEO,         MKTAG(64 , 'R', 'B', 'A') },
  94     { AV_CODEC_ID_RAWVIDEO,         MKTAG(64 , 'B', 'R', 'A') },
  95     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 ,  9 ) },
  96     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9 , 11 , '3', 'Y') },
  97     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 ,  9 ) },
  98     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9 , 10 , '3', 'Y') },
  99     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 ,  9 ) },
 100     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9 ,  0 , '3', 'Y') },
 101     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 10 ) },
 102     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 , 11 , '3', 'Y') },
 103     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 10 ) },
 104     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 , 10 , '3', 'Y') },
 105     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 10 ) },
 106     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 ,  0 , '3', 'Y') },
 107     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 12 ) },
 108     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 11 , '3', 'Y') },
 109     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 12 ) },
 110     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 10 , '3', 'Y') },
 111     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 12 ) },
 112     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 ,  0 , '3', 'Y') },
 113     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 14 ) },
 114     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 , 11 , '3', 'Y') },
 115     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 14 ) },
 116     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 , 10 , '3', 'Y') },
 117     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 14 ) },
 118     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 ,  0 , '3', 'Y') },
 119     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',  0 , 16 ) },
 120     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 ,  0 , '1', 'Y') },
 121     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 16 ) },
 122     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 11 , '3', 'Y') },
 123     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 16 ) },
 124     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 10 , '3', 'Y') },
 125     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 16 ) },
 126     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 ,  0 , '3', 'Y') },
 127     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4', 11 ,  8 ) },
 128     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4', 10 ,  8 ) },
 129     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  0 ,  8 ) },
 130     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '2',  0 ,  8 ) },
 131
 132     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,   9) },
 133     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,     0, '1', 'Y') },
 134     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  11,   9) },
 135     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,    11, '4', 'Y') },
 136     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,   9) },
 137     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,    10, '4', 'Y') },
 138     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,   9) },
 139     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,     0, '4', 'Y') },
 140
 141     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  10) },
 142     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,    0, '1', 'Y') },
 143     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  11,  10) },
 144     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,   11, '4', 'Y') },
 145     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,  10) },
 146     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,   10, '4', 'Y') },
 147     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,  10) },
 148     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,    0, '4', 'Y') },
 149
 150     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,  12) },
 151     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12,    0, '4', 'Y') },
 152     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,  12) },
 153     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12,   10, '4', 'Y') },
 154
 155     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  12) },
 156     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12,    0, '1', 'Y') },
 157     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  16) },
 158     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,    0, '1', 'Y') },
 159     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  11,  16) },
 160     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,   11, '4', 'Y') },
 161     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,  16) },
 162     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,   10, '4', 'Y') },
 163     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,  16) },
 164     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,    0, '4', 'Y') },
 165
 166     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  14) },
 167     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14,    0, '1', 'Y') },
 168
 169     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,   8) },
 170
 171     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,   9) },
 172     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9,    0, '3', 'G') },
 173     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  10) },
 174     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,    0, '3', 'G') },
 175     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  12) },
 176     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12,    0, '3', 'G') },
 177     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  14) },
 178     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14,    0, '3', 'G') },
 179     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  16) },
 180     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,    0, '3', 'G') },
 181     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  17) },
 182     { AV_CODEC_ID_RAWVIDEO,         MKTAG(17 ,  0 , '3', 'G') },
 183     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  33) },
 184     { AV_CODEC_ID_RAWVIDEO,         MKTAG(33 ,  0 , '3', 'G') },
 185
 186     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4',   0,   8) },
 187
 188     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 10 ) },
 189     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 , 00 , '4', 'G') },
 190     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 12 ) },
 191     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 00 , '4', 'G') },
 192     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 14 ) },
 193     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 , 00 , '4', 'G') },
 194     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 16 ) },
 195     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 00 , '4', 'G') },
 196     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4',   0,  17) },
 197     { AV_CODEC_ID_RAWVIDEO,         MKTAG(17 ,  0 , '4', 'G') },
 198     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4',   0,  33) },
 199     { AV_CODEC_ID_RAWVIDEO,         MKTAG(33 ,  0 , '4', 'G') },
 200
 201     { AV_CODEC_ID_RAWVIDEO,         MKTAG('X', 'Y', 'Z' , 36 ) },
 202     { AV_CODEC_ID_RAWVIDEO,         MKTAG(36 , 'Z' , 'Y', 'X') },
 203
 204     { AV_CODEC_ID_RAWVIDEO,         MKTAG('P', 'A', 'L', 8 ) },
 205
 206     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 8   ) },
 207     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 16  ) },
 208     { AV_CODEC_ID_RAWVIDEO, MKTAG(16  , 'G', 'B', 0xBA) },
 209     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 8   ) },
 210     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 16  ) },
 211     { AV_CODEC_ID_RAWVIDEO, MKTAG(16  , 'G', 'R', 0xBA) },
 212     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 8   ) },
 213     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 16  ) },
 214     { AV_CODEC_ID_RAWVIDEO, MKTAG(16,   'B', 'G', 0xBA) },
 215     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 8   ) },
 216     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 16  ) },
 217     { AV_CODEC_ID_RAWVIDEO, MKTAG(16,   'R', 'G', 0xBA) },
 218
 219     { AV_CODEC_ID_NONE,             0 }
 220 };
 221
 222 const AVCodecTag ff_nut_audio_extra_tags[] = {
 223     { AV_CODEC_ID_COMFORT_NOISE,    MKTAG('3', '3', '8', '9') },
 224     { AV_CODEC_ID_PCM_ALAW,         MKTAG('A', 'L', 'A', 'W') },
 225     { AV_CODEC_ID_PCM_MULAW,        MKTAG('U', 'L', 'A', 'W') },
 226     { AV_CODEC_ID_MP3,              MKTAG('M', 'P', '3', ' ') },
 227     { AV_CODEC_ID_OPUS,             MKTAG('O', 'p', 'u', 's') },
 228     { AV_CODEC_ID_WAVPACK,          MKTAG('w', 'v', 'p', 'k') },
 229     { AV_CODEC_ID_NONE,             0                         }
 230 };
 231
 232 const AVCodecTag ff_nut_audio_tags[] = {
 233     { AV_CODEC_ID_PCM_F32BE,        MKTAG(32 , 'D', 'F', 'P') },
 234     { AV_CODEC_ID_PCM_F32LE,        MKTAG('P', 'F', 'D', 32 ) },
 235     { AV_CODEC_ID_PCM_F64BE,        MKTAG(64 , 'D', 'F', 'P') },
 236     { AV_CODEC_ID_PCM_F64LE,        MKTAG('P', 'F', 'D', 64 ) },
 237     { AV_CODEC_ID_PCM_S16BE,        MKTAG(16 , 'D', 'S', 'P') },
 238     { AV_CODEC_ID_PCM_S16LE,        MKTAG('P', 'S', 'D', 16 ) },
 239     { AV_CODEC_ID_PCM_S24BE,        MKTAG(24 , 'D', 'S', 'P') },
 240     { AV_CODEC_ID_PCM_S24LE,        MKTAG('P', 'S', 'D', 24 ) },
 241     { AV_CODEC_ID_PCM_S32BE,        MKTAG(32 , 'D', 'S', 'P') },
 242     { AV_CODEC_ID_PCM_S32LE,        MKTAG('P', 'S', 'D', 32 ) },
 243     { AV_CODEC_ID_PCM_S64BE,        MKTAG(64 , 'D', 'S', 'P') },
 244     { AV_CODEC_ID_PCM_S64LE,        MKTAG('P', 'S', 'D', 64 ) },
 245     { AV_CODEC_ID_PCM_S8,           MKTAG('P', 'S', 'D',  8 ) },
 246     { AV_CODEC_ID_PCM_U16BE,        MKTAG(16 , 'D', 'U', 'P') },
 247     { AV_CODEC_ID_PCM_U16LE,        MKTAG('P', 'U', 'D', 16 ) },
 248     { AV_CODEC_ID_PCM_U24BE,        MKTAG(24 , 'D', 'U', 'P') },
 249     { AV_CODEC_ID_PCM_U24LE,        MKTAG('P', 'U', 'D', 24 ) },
 250     { AV_CODEC_ID_PCM_U32BE,        MKTAG(32 , 'D', 'U', 'P') },
 251     { AV_CODEC_ID_PCM_U32LE,        MKTAG('P', 'U', 'D', 32 ) },
 252     { AV_CODEC_ID_PCM_U8,           MKTAG('P', 'U', 'D',  8 ) },
 253     { AV_CODEC_ID_PCM_S8_PLANAR,    MKTAG('P', 'S', 'P',  8 ) },
 254     { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },
 255     { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
 256     { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },
 257     { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },
 258     { AV_CODEC_ID_NONE,             0                         }
 259 };
 260
 261 const AVCodecTag * const ff_nut_codec_tags[] = {
 262     ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
 263     ff_codec_bmp_tags, ff_codec_wav_tags, ff_nut_audio_extra_tags, ff_nut_data_tags, 0
 264 };
 265
 266 void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
 267 {
 268     int i;
 269     for (i = 0; i < nut->avf->nb_streams; i++)
 270         nut->stream[i].last_pts =
 271             av_rescale_rnd(val,
 272                            time_base.num * (int64_t)nut->stream[i].time_base->den,
 273                            time_base.den * (int64_t)nut->stream[i].time_base->num,
 274                            AV_ROUND_DOWN);
 275 }
 276
 277 int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
 278 {
 279     int64_t mask  = (1ULL << stream->msb_pts_shift) - 1;
 280     int64_t delta = stream->last_pts - mask / 2;
 281     return ((lsb - delta) & mask) + delta;
 282 }
 283
 284 int ff_nut_sp_pos_cmp(const void *a, const void *b)
 285 {
 286     const Syncpoint *va = a, *vb = b;
 287     return ((va->pos - vb->pos) >> 32) - ((vb->pos - va->pos) >> 32);
 288 }
 289
 290 int ff_nut_sp_pts_cmp(const void *a, const void *b)
 291 {
 292     const Syncpoint *va = a, *vb = b;
 293     return ((va->ts - vb->ts) >> 32) - ((vb->ts - va->ts) >> 32);
 294 }
 295
 296 int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
 297 {
 298     Syncpoint *sp           = av_mallocz(sizeof(Syncpoint));
 299     struct AVTreeNode *node = av_tree_node_alloc();
 300
 301     if (!sp || !node) {
 302         av_freep(&sp);
 303         av_freep(&node);
 304         return AVERROR(ENOMEM);
 305     }
 306
 307     nut->sp_count++;
 308
 309     sp->pos      = pos;
 310     sp->back_ptr = back_ptr;
 311     sp->ts       = ts;
 312     av_tree_insert(&nut->syncpoints, sp, ff_nut_sp_pos_cmp, &node);
 313     if (node) {
 314         av_free(sp);
 315         av_free(node);
 316     }
 317
 318     return 0;
 319 }
 320
 321 static int enu_free(void *opaque, void *elem)
 322 {
 323     av_free(elem);
 324     return 0;
 325 }
 326
 327 void ff_nut_free_sp(NUTContext *nut)
 328 {
 329     if (nut->syncpoints) {
 330         av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
 331         av_tree_destroy(nut->syncpoints);
 332     }
 333 }
 334
 335 const Dispositions ff_nut_dispositions[] = {
 336     { "default",        AV_DISPOSITION_DEFAULT  },
 337     { "dub",            AV_DISPOSITION_DUB      },
 338     { "original",       AV_DISPOSITION_ORIGINAL },
 339     { "comment",        AV_DISPOSITION_COMMENT  },
 340     { "lyrics",         AV_DISPOSITION_LYRICS   },
 341     { "karaoke",        AV_DISPOSITION_KARAOKE  },
 342     { "",               0                       }
 343 };
 344
 345 const AVMetadataConv ff_nut_metadata_conv[] = {
 346     { "Author",         "artist"      },
 347     { "X-CreationTime", "date"        },
 348     { "CreationTime",   "date"        },
 349     { "SourceFilename", "filename"    },
 350     { "X-Language",     "language"    },
 351     { "X-Disposition",  "disposition" },
 352     { "X-Replaces",     "replaces"    },
 353     { "X-Depends",      "depends"     },
 354     { "X-Uses",         "uses"        },
 355     { "X-UsesFont",     "usesfont"    },
 356     { 0 },
 357 };