LCOV - code coverage report
Current view: top level - libavformat - nut.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 35 41 85.4 %
Date: 2017-12-13 18:07:29 Functions: 6 7 85.7 %

          Line data    Source code
       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_DVD_SUBTITLE,     MKTAG('D', 'V', 'D', 'S') },
      31             :     { AV_CODEC_ID_DVB_SUBTITLE,     MKTAG('D', 'V', 'B', 'S') },
      32             :     { AV_CODEC_ID_DVB_TELETEXT,     MKTAG('D', 'V', 'B', 'T') },
      33             :     { AV_CODEC_ID_NONE,             0                         }
      34             : };
      35             : 
      36             : const AVCodecTag ff_nut_data_tags[] = {
      37             :     { AV_CODEC_ID_TEXT,             MKTAG('U', 'T', 'F', '8') },
      38             :     { AV_CODEC_ID_NONE,             0 }
      39             : };
      40             : 
      41             : const AVCodecTag ff_nut_video_tags[] = {
      42             :     { AV_CODEC_ID_GIF,              MKTAG('G', 'I', 'F',  0 ) },
      43             :     { AV_CODEC_ID_XFACE,            MKTAG('X', 'F', 'A', 'C') },
      44             :     { AV_CODEC_ID_VP9,              MKTAG('V', 'P', '9', '0') },
      45             :     { AV_CODEC_ID_HEVC,             MKTAG('H', 'E', 'V', 'C') },
      46             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 15 ) },
      47             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 15 ) },
      48             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 16 ) },
      49             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 16 ) },
      50             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(15 , 'B', 'G', 'R') },
      51             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(15 , 'R', 'G', 'B') },
      52             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 'B', 'G', 'R') },
      53             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 'R', 'G', 'B') },
      54             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 12 ) },
      55             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 12 ) },
      56             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 'B', 'G', 'R') },
      57             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 'R', 'G', 'B') },
      58             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 'A') },
      59             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B',  0 ) },
      60             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 'A') },
      61             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R',  0 ) },
      62             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('A', 'B', 'G', 'R') },
      63             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 0 , 'B', 'G', 'R') },
      64             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('A', 'R', 'G', 'B') },
      65             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 0 , 'R', 'G', 'B') },
      66             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 24 ) },
      67             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 24 ) },
      68             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '1', '1', 'P') },
      69             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '2', '2', 'P') },
      70             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '2', '2', 'P') },
      71             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '0', 'P') },
      72             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '0', 'P') },
      73             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '4', 'P') },
      74             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('4', '4', '4', 'P') },
      75             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', '1', 'W', '0') },
      76             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', '0', 'W', '1') },
      77             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R',  8 ) },
      78             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B',  8 ) },
      79             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R',  4 ) },
      80             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B',  4 ) },
      81             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', '4', 'B', 'Y') },
      82             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', '4', 'B', 'Y') },
      83             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'G', 'R', 48 ) },
      84             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'G', 'B', 48 ) },
      85             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(48 , 'B', 'G', 'R') },
      86             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(48 , 'R', 'G', 'B') },
      87             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('R', 'B', 'A', 64 ) },
      88             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('B', 'R', 'A', 64 ) },
      89             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(64 , 'R', 'B', 'A') },
      90             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(64 , 'B', 'R', 'A') },
      91             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 ,  9 ) },
      92             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9 , 11 , '3', 'Y') },
      93             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 ,  9 ) },
      94             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9 , 10 , '3', 'Y') },
      95             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 ,  9 ) },
      96             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9 ,  0 , '3', 'Y') },
      97             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 10 ) },
      98             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 , 11 , '3', 'Y') },
      99             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 10 ) },
     100             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 , 10 , '3', 'Y') },
     101             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 10 ) },
     102             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 ,  0 , '3', 'Y') },
     103             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 12 ) },
     104             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 11 , '3', 'Y') },
     105             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 12 ) },
     106             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 10 , '3', 'Y') },
     107             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 12 ) },
     108             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 ,  0 , '3', 'Y') },
     109             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 14 ) },
     110             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 , 11 , '3', 'Y') },
     111             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 14 ) },
     112             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 , 10 , '3', 'Y') },
     113             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 14 ) },
     114             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14 ,  0 , '3', 'Y') },
     115             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',  0 , 16 ) },
     116             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 ,  0 , '1', 'Y') },
     117             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 11 , 16 ) },
     118             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 11 , '3', 'Y') },
     119             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3', 10 , 16 ) },
     120             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 10 , '3', 'Y') },
     121             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '3',  0 , 16 ) },
     122             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 ,  0 , '3', 'Y') },
     123             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4', 11 ,  8 ) },
     124             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4', 10 ,  8 ) },
     125             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  0 ,  8 ) },
     126             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '2',  0 ,  8 ) },
     127             : 
     128             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,   9) },
     129             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,     0, '1', 'Y') },
     130             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  11,   9) },
     131             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,    11, '4', 'Y') },
     132             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,   9) },
     133             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,    10, '4', 'Y') },
     134             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,   9) },
     135             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(9,     0, '4', 'Y') },
     136             : 
     137             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  10) },
     138             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,    0, '1', 'Y') },
     139             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  11,  10) },
     140             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,   11, '4', 'Y') },
     141             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,  10) },
     142             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,   10, '4', 'Y') },
     143             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,  10) },
     144             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,    0, '4', 'Y') },
     145             : 
     146             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  12) },
     147             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12,    0, '1', 'Y') },
     148             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '1',   0,  16) },
     149             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,    0, '1', 'Y') },
     150             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  11,  16) },
     151             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,   11, '4', 'Y') },
     152             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',  10,  16) },
     153             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,   10, '4', 'Y') },
     154             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('Y', '4',   0,  16) },
     155             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,    0, '4', 'Y') },
     156             : 
     157             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,   8) },
     158             : 
     159             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,   9) },
     160             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG( 9,    0, '3', 'G') },
     161             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  10) },
     162             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10,    0, '3', 'G') },
     163             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  12) },
     164             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12,    0, '3', 'G') },
     165             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  14) },
     166             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(14,    0, '3', 'G') },
     167             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '3',   0,  16) },
     168             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16,    0, '3', 'G') },
     169             : 
     170             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4',   0,   8) },
     171             : 
     172             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 10 ) },
     173             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(10 , 00 , '4', 'G') },
     174             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 12 ) },
     175             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(12 , 00 , '4', 'G') },
     176             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('G', '4', 00 , 16 ) },
     177             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(16 , 00 , '4', 'G') },
     178             : 
     179             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('X', 'Y', 'Z' , 36 ) },
     180             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG(36 , 'Z' , 'Y', 'X') },
     181             : 
     182             :     { AV_CODEC_ID_RAWVIDEO,         MKTAG('P', 'A', 'L', 8 ) },
     183             : 
     184             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 8   ) },
     185             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'B', 'G', 16  ) },
     186             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(16  , 'G', 'B', 0xBA) },
     187             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 8   ) },
     188             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'R', 'G', 16  ) },
     189             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(16  , 'G', 'R', 0xBA) },
     190             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 8   ) },
     191             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'B', 16  ) },
     192             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(16,   'B', 'G', 0xBA) },
     193             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 8   ) },
     194             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(0xBA, 'G', 'R', 16  ) },
     195             :     { AV_CODEC_ID_RAWVIDEO, MKTAG(16,   'R', 'G', 0xBA) },
     196             : 
     197             :     { AV_CODEC_ID_NONE,             0 }
     198             : };
     199             : 
     200             : const AVCodecTag ff_nut_audio_extra_tags[] = {
     201             :     { AV_CODEC_ID_COMFORT_NOISE,    MKTAG('3', '3', '8', '9') },
     202             :     { AV_CODEC_ID_PCM_ALAW,         MKTAG('A', 'L', 'A', 'W') },
     203             :     { AV_CODEC_ID_PCM_MULAW,        MKTAG('U', 'L', 'A', 'W') },
     204             :     { AV_CODEC_ID_MP3,              MKTAG('M', 'P', '3', ' ') },
     205             :     { AV_CODEC_ID_OPUS,             MKTAG('O', 'p', 'u', 's') },
     206             :     { AV_CODEC_ID_WAVPACK,          MKTAG('w', 'v', 'p', 'k') },
     207             :     { AV_CODEC_ID_NONE,             0                         }
     208             : };
     209             : 
     210             : const AVCodecTag ff_nut_audio_tags[] = {
     211             :     { AV_CODEC_ID_PCM_F32BE,        MKTAG(32 , 'D', 'F', 'P') },
     212             :     { AV_CODEC_ID_PCM_F32LE,        MKTAG('P', 'F', 'D', 32 ) },
     213             :     { AV_CODEC_ID_PCM_F64BE,        MKTAG(64 , 'D', 'F', 'P') },
     214             :     { AV_CODEC_ID_PCM_F64LE,        MKTAG('P', 'F', 'D', 64 ) },
     215             :     { AV_CODEC_ID_PCM_S16BE,        MKTAG(16 , 'D', 'S', 'P') },
     216             :     { AV_CODEC_ID_PCM_S16LE,        MKTAG('P', 'S', 'D', 16 ) },
     217             :     { AV_CODEC_ID_PCM_S24BE,        MKTAG(24 , 'D', 'S', 'P') },
     218             :     { AV_CODEC_ID_PCM_S24LE,        MKTAG('P', 'S', 'D', 24 ) },
     219             :     { AV_CODEC_ID_PCM_S32BE,        MKTAG(32 , 'D', 'S', 'P') },
     220             :     { AV_CODEC_ID_PCM_S32LE,        MKTAG('P', 'S', 'D', 32 ) },
     221             :     { AV_CODEC_ID_PCM_S8,           MKTAG('P', 'S', 'D',  8 ) },
     222             :     { AV_CODEC_ID_PCM_U16BE,        MKTAG(16 , 'D', 'U', 'P') },
     223             :     { AV_CODEC_ID_PCM_U16LE,        MKTAG('P', 'U', 'D', 16 ) },
     224             :     { AV_CODEC_ID_PCM_U24BE,        MKTAG(24 , 'D', 'U', 'P') },
     225             :     { AV_CODEC_ID_PCM_U24LE,        MKTAG('P', 'U', 'D', 24 ) },
     226             :     { AV_CODEC_ID_PCM_U32BE,        MKTAG(32 , 'D', 'U', 'P') },
     227             :     { AV_CODEC_ID_PCM_U32LE,        MKTAG('P', 'U', 'D', 32 ) },
     228             :     { AV_CODEC_ID_PCM_U8,           MKTAG('P', 'U', 'D',  8 ) },
     229             :     { AV_CODEC_ID_PCM_S8_PLANAR,    MKTAG('P', 'S', 'P',  8 ) },
     230             :     { AV_CODEC_ID_PCM_S16BE_PLANAR, MKTAG(16 , 'P', 'S', 'P') },
     231             :     { AV_CODEC_ID_PCM_S16LE_PLANAR, MKTAG('P', 'S', 'P', 16 ) },
     232             :     { AV_CODEC_ID_PCM_S24LE_PLANAR, MKTAG('P', 'S', 'P', 24 ) },
     233             :     { AV_CODEC_ID_PCM_S32LE_PLANAR, MKTAG('P', 'S', 'P', 32 ) },
     234             :     { AV_CODEC_ID_NONE,             0                         }
     235             : };
     236             : 
     237             : const AVCodecTag * const ff_nut_codec_tags[] = {
     238             :     ff_nut_video_tags, ff_nut_audio_tags, ff_nut_subtitle_tags,
     239             :     ff_codec_bmp_tags, ff_codec_wav_tags, ff_nut_audio_extra_tags, ff_nut_data_tags, 0
     240             : };
     241             : 
     242        4176 : void ff_nut_reset_ts(NUTContext *nut, AVRational time_base, int64_t val)
     243             : {
     244             :     int i;
     245        8580 :     for (i = 0; i < nut->avf->nb_streams; i++)
     246        8808 :         nut->stream[i].last_pts =
     247       13212 :             av_rescale_rnd(val,
     248        4404 :                            time_base.num * (int64_t)nut->stream[i].time_base->den,
     249        4404 :                            time_base.den * (int64_t)nut->stream[i].time_base->num,
     250             :                            AV_ROUND_DOWN);
     251        4176 : }
     252             : 
     253        9006 : int64_t ff_lsb2full(StreamContext *stream, int64_t lsb)
     254             : {
     255        9006 :     int64_t mask  = (1ULL << stream->msb_pts_shift) - 1;
     256        9006 :     int64_t delta = stream->last_pts - mask / 2;
     257        9006 :     return ((lsb - delta) & mask) + delta;
     258             : }
     259             : 
     260       19929 : int ff_nut_sp_pos_cmp(const void *a, const void *b)
     261             : {
     262       19929 :     const Syncpoint *va = a, *vb = b;
     263       19929 :     return ((va->pos - vb->pos) >> 32) - ((vb->pos - va->pos) >> 32);
     264             : }
     265             : 
     266           0 : int ff_nut_sp_pts_cmp(const void *a, const void *b)
     267             : {
     268           0 :     const Syncpoint *va = a, *vb = b;
     269           0 :     return ((va->ts - vb->ts) >> 32) - ((vb->ts - va->ts) >> 32);
     270             : }
     271             : 
     272        4176 : int ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts)
     273             : {
     274        4176 :     Syncpoint *sp           = av_mallocz(sizeof(Syncpoint));
     275        4176 :     struct AVTreeNode *node = av_tree_node_alloc();
     276             : 
     277        4176 :     if (!sp || !node) {
     278           0 :         av_freep(&sp);
     279           0 :         av_freep(&node);
     280           0 :         return AVERROR(ENOMEM);
     281             :     }
     282             : 
     283        4176 :     nut->sp_count++;
     284             : 
     285        4176 :     sp->pos      = pos;
     286        4176 :     sp->back_ptr = back_ptr;
     287        4176 :     sp->ts       = ts;
     288        4176 :     av_tree_insert(&nut->syncpoints, sp, ff_nut_sp_pos_cmp, &node);
     289        4176 :     if (node) {
     290          23 :         av_free(sp);
     291          23 :         av_free(node);
     292             :     }
     293             : 
     294        4176 :     return 0;
     295             : }
     296             : 
     297        4153 : static int enu_free(void *opaque, void *elem)
     298             : {
     299        4153 :     av_free(elem);
     300        4153 :     return 0;
     301             : }
     302             : 
     303        1794 : void ff_nut_free_sp(NUTContext *nut)
     304             : {
     305        1794 :     if (nut->syncpoints) {
     306        1794 :         av_tree_enumerate(nut->syncpoints, NULL, NULL, enu_free);
     307        1794 :         av_tree_destroy(nut->syncpoints);
     308             :     }
     309        1794 : }
     310             : 
     311             : const Dispositions ff_nut_dispositions[] = {
     312             :     { "default",        AV_DISPOSITION_DEFAULT  },
     313             :     { "dub",            AV_DISPOSITION_DUB      },
     314             :     { "original",       AV_DISPOSITION_ORIGINAL },
     315             :     { "comment",        AV_DISPOSITION_COMMENT  },
     316             :     { "lyrics",         AV_DISPOSITION_LYRICS   },
     317             :     { "karaoke",        AV_DISPOSITION_KARAOKE  },
     318             :     { "",               0                       }
     319             : };
     320             : 
     321             : const AVMetadataConv ff_nut_metadata_conv[] = {
     322             :     { "Author",         "artist"      },
     323             :     { "X-CreationTime", "date"        },
     324             :     { "CreationTime",   "date"        },
     325             :     { "SourceFilename", "filename"    },
     326             :     { "X-Language",     "language"    },
     327             :     { "X-Disposition",  "disposition" },
     328             :     { "X-Replaces",     "replaces"    },
     329             :     { "X-Depends",      "depends"     },
     330             :     { "X-Uses",         "uses"        },
     331             :     { "X-UsesFont",     "usesfont"    },
     332             :     { 0 },
     333             : };

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