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FFmpeg/libavformat/nut.c

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  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/tree.h"

  24. #include "nut.h"

  25. #include "riff.h"

  26. #include "internal.h"

  27. 

  28. const AVCodecTag ff_nut_subtitle_tags[] = {

  29.     { AV_CODEC_ID_TEXT        , MKTAG('U', 'T', 'F', '8') },

  30.     { AV_CODEC_ID_SSA         , MKTAG('S', 'S', 'A',  0 ) },

  31.     { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('D', 'V', 'D', 'S') },

  32.     { AV_CODEC_ID_DVB_SUBTITLE, MKTAG('D', 'V', 'B', 'S') },

  33.     { AV_CODEC_ID_DVB_TELETEXT, MKTAG('D', 'V', 'B', 'T') },

  34.     { AV_CODEC_ID_NONE        , 0                         }

  35. };

  36. 

  37. const AVCodecTag ff_nut_data_tags[] = {

  38.     { AV_CODEC_ID_TEXT        , MKTAG('U', 'T', 'F', '8') },

  39.     { AV_CODEC_ID_NONE        , 0                         }

  40. };

  41. 

  42. const AVCodecTag ff_nut_video_tags[] = {

  43.     { AV_CODEC_ID_VP9,      MKTAG('V', 'P', '9', '0') },

  44.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 15 ) },

  45.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 15 ) },

  46.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 16 ) },

  47.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 16 ) },

  48.     { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'B', 'G', 'R') },

  49.     { AV_CODEC_ID_RAWVIDEO, MKTAG(15 , 'R', 'G', 'B') },

  50.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'B', 'G', 'R') },

  51.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 'R', 'G', 'B') },

  52.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 12 ) },

  53.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 12 ) },

  54.     { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'B', 'G', 'R') },

  55.     { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 'R', 'G', 'B') },

  56.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },

  57.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B',  0 ) },

  58.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },

  59.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R',  0 ) },

  60.     { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },

  61.     { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'B', 'G', 'R') },

  62.     { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'R', 'G', 'B') },

  63.     { AV_CODEC_ID_RAWVIDEO, MKTAG( 0 , 'R', 'G', 'B') },

  64.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 24 ) },

  65.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 24 ) },

  66.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '1', '1', 'P') },

  67.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },

  68.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '2', '2', 'P') },

  69.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },

  70.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '0', 'P') },

  71.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },

  72.     { AV_CODEC_ID_RAWVIDEO, MKTAG('4', '4', '4', 'P') },

  73.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '1', 'W', '0') },

  74.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '0', 'W', '1') },

  75.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R',  8 ) },

  76.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B',  8 ) },

  77.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R',  4 ) },

  78.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B',  4 ) },

  79.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '4', 'B', 'Y') },

  80.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', 'B', 'Y') },

  81.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 48 ) },

  82.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 48 ) },

  83.     { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'B', 'G', 'R') },

  84.     { AV_CODEC_ID_RAWVIDEO, MKTAG(48 , 'R', 'G', 'B') },

  85.     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'R', 'A', 64 ) },

  86.     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'B', 'A', 64 ) },

  87.     { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'B', 'R', 'A') },

  88.     { AV_CODEC_ID_RAWVIDEO, MKTAG(64 , 'R', 'B', 'A') },

  89.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 10 ) },

  90.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 11 , '3', 'Y') },

  91.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 10 ) },

  92.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 10 , '3', 'Y') },

  93.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3',  0 , 10 ) },

  94.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 ,  0 , '3', 'Y') },

  95.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 12 ) },

  96.     { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 11 , '3', 'Y') },

  97.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 12 ) },

  98.     { AV_CODEC_ID_RAWVIDEO, MKTAG(12 , 10 , '3', 'Y') },

  99.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3',  0 , 12 ) },

  100.     { AV_CODEC_ID_RAWVIDEO, MKTAG(12 ,  0 , '3', 'Y') },

  101.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 14 ) },

  102.     { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 11 , '3', 'Y') },

  103.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 14 ) },

  104.     { AV_CODEC_ID_RAWVIDEO, MKTAG(14 , 10 , '3', 'Y') },

  105.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3',  0 , 14 ) },

  106.     { AV_CODEC_ID_RAWVIDEO, MKTAG(14 ,  0 , '3', 'Y') },

  107.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1',  0 , 16 ) },

  108.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 ,  0 , '1', 'Y') },

  109.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 11 , 16 ) },

  110.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '3', 'Y') },

  111.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3', 10 , 16 ) },

  112.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '3', 'Y') },

  113.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '3',  0 , 16 ) },

  114.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 ,  0 , '3', 'Y') },

  115.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 ,  8 ) },

  116.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 ,  8 ) },

  117.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4',  0 ,  8 ) },

  118.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '2',  0 ,  8 ) },

  119. 

  120.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1',  0 ,  9 ) },

  121.     { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 ,  0 , '1', 'Y') },

  122.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 ,  9 ) },

  123.     { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 , 11 , '4', 'Y') },

  124.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 ,  9 ) },

  125.     { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 , 10 , '4', 'Y') },

  126.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4',  0 ,  9 ) },

  127.     { AV_CODEC_ID_RAWVIDEO, MKTAG( 9 ,  0 , '4', 'Y') },

  128. 

  129.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1',  0 , 10 ) },

  130.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 ,  0 , '1', 'Y') },

  131.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 10 ) },

  132.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 11 , '4', 'Y') },

  133.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 , 10 ) },

  134.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 , 10 , '4', 'Y') },

  135.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4',  0 , 10 ) },

  136.     { AV_CODEC_ID_RAWVIDEO, MKTAG(10 ,  0 , '4', 'Y') },

  137. 

  138.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '1',  0 , 16 ) },

  139.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 ,  0 , '1', 'Y') },

  140.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 11 , 16 ) },

  141.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 11 , '4', 'Y') },

  142.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', 10 , 16 ) },

  143.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 , 10 , '4', 'Y') },

  144.     { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4',  0 , 16 ) },

  145.     { AV_CODEC_ID_RAWVIDEO, MKTAG(16 ,  0 , '4', 'Y') },

  146. 

  147.     { AV_CODEC_ID_NONE    , 0                         }

  148. };

  149. 

  150. static const AVCodecTag nut_audio_extra_tags[] = {

  151.     { AV_CODEC_ID_PCM_ALAW,         MKTAG('A', 'L', 'A', 'W') },

  152.     { AV_CODEC_ID_PCM_MULAW,        MKTAG('U', 'L', 'A', 'W') },

  153.     { AV_CODEC_ID_MP3,              MKTAG('M', 'P', '3', ' ') },

  154.     { AV_CODEC_ID_NONE,             0                         }

  155. };

  156. 

  157. const AVCodecTag ff_nut_audio_tags[] = {

  158.     { AV_CODEC_ID_PCM_F32BE,        MKTAG(32 , 'D', 'F', 'P') },

  159.     { AV_CODEC_ID_PCM_F32LE,        MKTAG('P', 'F', 'D', 32 ) },

  160.     { AV_CODEC_ID_PCM_F64BE,        MKTAG(64 , 'D', 'F', 'P') },

  161.     { AV_CODEC_ID_PCM_F64LE,        MKTAG('P', 'F', 'D', 64 ) },

  162.     { AV_CODEC_ID_PCM_S16BE,        MKTAG(16 , 'D', 'S', 'P') },

  163.     { AV_CODEC_ID_PCM_S16LE,        MKTAG('P', 'S', 'D', 16 ) },

  164.     { AV_CODEC_ID_PCM_S24BE,        MKTAG(24 , 'D', 'S', 'P') },

  165.     { AV_CODEC_ID_PCM_S24LE,        MKTAG('P', 'S', 'D', 24 ) },

  166.     { AV_CODEC_ID_PCM_S32BE,        MKTAG(32 , 'D', 'S', 'P') },

  167.     { AV_CODEC_ID_PCM_S32LE,        MKTAG('P', 'S', 'D', 32 ) },

  168.     { AV_CODEC_ID_PCM_S8,           MKTAG('P', 'S', 'D',  8 ) },

  169.     { AV_CODEC_ID_PCM_U16BE,        MKTAG(16 , 'D', 'U', 'P') },

  170.     { AV_CODEC_ID_PCM_U16LE,        MKTAG('P', 'U', 'D', 16 ) },

  171.     { AV_CODEC_ID_PCM_U24BE,        MKTAG(24 , 'D', 'U', 'P') },

  172.     { AV_CODEC_ID_PCM_U24LE,        MKTAG('P', 'U', 'D', 24 ) },

  173.     { AV_CODEC_ID_PCM_U32BE,        MKTAG(32 , 'D', 'U', 'P') },

  174.     { AV_CODEC_ID_PCM_U32LE,        MKTAG('P', 'U', 'D', 32 ) },

  175.     { AV_CODEC_ID_PCM_U8,           MKTAG('P', 'U', 'D',  8 ) },

  176.     { AV_CODEC_ID_PCM_S8_PLANAR,    MKTAG('P', 'S', 'P',  8 ) },

  177.     { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },

  178.     { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },

  179.     { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },

  180.     { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },

  181.     { AV_CODEC_ID_NONE,             0                         }

  182. };

  183. 

  184. const AVCodecTag * const ff_nut_codec_tags[] = {

  185.     ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,

  186.     ff_codec_bmp_tags, ff_codec_wav_tags, nut_audio_extra_tags, ff_nut_data_tags, 0

  187. };

  188. 

  189. void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val){

  190.     int i;

  191.     for(i=0; i<nut->avf->nb_streams; i++){

  192.         nut->stream[i].last_pts= av_rescale_rnd(

  193.             val,

  194.             time_base.num * (int64_t)nut->stream[i].time_base->den,

  195.             time_base.den * (int64_t)nut->stream[i].time_base->num,

  196.             AV_ROUND_DOWN);

  197.     }

  198. }

  199. 

  200. int64_t ff_lsb2full(StreamContext *stream, int64_t lsb){

  201.     int64_t mask = (1ULL<<stream->msb_pts_shift)-1;

  202.     int64_t delta= stream->last_pts - mask/2;

  203.     return  ((lsb - delta)&mask) + delta;

  204. }

  205. 

  206. int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b){

  207.     return ((a->pos - b->pos) >> 32) - ((b->pos - a->pos) >> 32);

  208. }

  209. 

  210. int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b){

  211.     return ((a->ts - b->ts) >> 32) - ((b->ts - a->ts) >> 32);

  212. }

  213. 

  214. void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts){

  215.     Syncpoint *sp= av_mallocz(sizeof(Syncpoint));

  216.     struct AVTreeNode *node = av_tree_node_alloc();

  217. 

  218.     nut->sp_count++;

  219. 

  220.     sp->pos= pos;

  221.     sp->back_ptr= back_ptr;

  222.     sp->ts= ts;

  223.     av_tree_insert(&nut->syncpoints, sp, (void *) ff_nut_sp_pos_cmp, &node);

  224.     if(node){

  225.         av_free(sp);

  226.         av_free(node);

  227.     }

  228. }

  229. 

  230. static int enu_free(void *opaque, void *elem)

  231. {

  232.     av_free(elem);

  233.     return 0;

  234. }

  235. 

  236. void ff_nut_free_sp(NUTContext *nut)

  237. {

  238.     av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);

  239.     av_tree_destroy(nut->syncpoints);

  240. }

  241. 

  242. const Dispositions ff_nut_dispositions[] = {

  243.     {"default"     , AV_DISPOSITION_DEFAULT},

  244.     {"dub"         , AV_DISPOSITION_DUB},

  245.     {"original"    , AV_DISPOSITION_ORIGINAL},

  246.     {"comment"     , AV_DISPOSITION_COMMENT},

  247.     {"lyrics"      , AV_DISPOSITION_LYRICS},

  248.     {"karaoke"     , AV_DISPOSITION_KARAOKE},

  249.     {""            , 0}

  250. };

  251. 

  252. const AVMetadataConv ff_nut_metadata_conv[] = {

  253.     { "Author",         "artist"      },

  254.     { "X-CreationTime", "date"        },

  255.     { "CreationTime",   "date"        },

  256.     { "SourceFilename", "filename"    },

  257.     { "X-Language",     "language"    },

  258.     { "X-Disposition",  "disposition" },

  259.     { "X-Replaces",     "replaces"    },

  260.     { "X-Depends",      "depends"     },

  261.     { "X-Uses",         "uses"        },

  262.     { "X-UsesFont",     "usesfont"    },

  263.     { 0 },

  264. };