[FFmpeg-trac] #4178(undetermined:open): Opus audio in MKV container

[FFmpeg]

#4178: Opus audio in MKV container
-------------------------------------+-------------------------------------
             Reporter:  agressiv     |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  mkv opus     |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:  libopus, mkv, matroska, opus, crackling => mkv opus regression
 * priority:  normal => important
 * version:  2.5 => git-master
 * status:  new => open
 * reproduced:  0 => 1


Comment:

 Regression since 7b0a839b

 For future tickets: Please always test current FFmpeg git head and please
 provide complete, uncut output of the failing command to make the tickets
 valid.

 {{{
 $ ffmpeg -i Star\ Trek\ \(2009\).mka out.wav
 ffmpeg version N-68356-gd43d5c5 Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Dec 10 2014 10:07:42 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      54. 15.100 / 54. 15.100
   libavcodec     56. 14.100 / 56. 14.100
   libavformat    56. 15.103 / 56. 15.103
   libavdevice    56.  3.100 / 56.  3.100
   libavfilter     5.  2.103 /  5.  2.103
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, matroska,webm, from 'Star Trek (2009).mka':
   Metadata:
     title           : StarTrek2009
     ENCODER         : Lavf56.11.100
   Duration: 00:01:00.00, start: 0.007000, bitrate: 300 kb/s
     Chapter #0:0: start 0.007000, end 60.000000
     Metadata:
       title           : Chapter 01
     Stream #0:0(eng): Audio: opus, 48000 Hz, 5.1, fltp (default)
     Metadata:
       LANGUAGE        : eng
       BPS             : 253416
       BPS-eng         : 253416
       DURATION        : 02:06:50.260000000
       DURATION-eng    : 02:06:50.260000000
       NUMBER_OF_FRAMES: 380514
       NUMBER_OF_FRAMES-eng: 380514
       NUMBER_OF_BYTES : 241070856
       NUMBER_OF_BYTES-eng: 241070856
       _STATISTICS_WRITING_APP: mkvmerge v7.3.0 ('Nouages') 64bit built on
 Oct 22 2014 18:53:34
       _STATISTICS_WRITING_APP-eng: mkvmerge v7.3.0 ('Nouages') 64bit built
 on Oct 22 2014 18:53:34
       _STATISTICS_WRITING_DATE_UTC: 2014-11-23 21:24:11
       _STATISTICS_WRITING_DATE_UTC-eng: 2014-11-23 21:24:11
       _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Output #0, wav, to 'out.wav':
   Metadata:
     INAM            : StarTrek2009
     ISFT            : Lavf56.15.103
     Chapter #0:0: start 0.014000, end 60.007000
     Metadata:
       title           : Chapter 01
     Stream #0:0(eng): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
 5.1, s16, 4608 kb/s (default)
     Metadata:
       LANGUAGE        : eng
       BPS             : 253416
       BPS-eng         : 253416
       DURATION        : 02:06:50.260000000
       DURATION-eng    : 02:06:50.260000000
       NUMBER_OF_FRAMES: 380514
       NUMBER_OF_FRAMES-eng: 380514
       NUMBER_OF_BYTES : 241070856
       NUMBER_OF_BYTES-eng: 241070856
       _STATISTICS_WRITING_APP: mkvmerge v7.3.0 ('Nouages') 64bit built on
 Oct 22 2014 18:53:34
       _STATISTICS_WRITING_APP-eng: mkvmerge v7.3.0 ('Nouages') 64bit built
 on Oct 22 2014 18:53:34
       _STATISTICS_WRITING_DATE_UTC: 2014-11-23 21:24:11
       _STATISTICS_WRITING_DATE_UTC-eng: 2014-11-23 21:24:11
       _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       encoder         : Lavc56.14.100 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (opus (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=   21676kB time=00:01:00.00 bitrate=2959.5kbits/s
 video:0kB audio:21676kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.000559%
 }}}
 Also reproducible with the libopus decoder, the following produces a
 playable file:
 {{{
 $ ffmpeg -i Star\ Trek\ \(2009\).mka -acodec copy out.opus
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4178#comment:1>
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