[FFmpeg-trac] #8649(avcodec:new): opus decoding regression

[FFmpeg]

#8649: opus decoding regression
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avcodec
                Version:  git-       |               Keywords:  opus
  master                             |  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 An irc user provided an opus file that sounds broken since
 51027d0b8b2835d4c70c9cb7b2ab5e28d5e3f22f, I will send a patch.
 {{{
 $ ffmpeg -i 09.opus out.wav
 ffmpeg version N-97572-gb9746fcbee Copyright (c) 2000-2020 the FFmpeg
 developers
   built with gcc 9 (SUSE Linux)
   configuration: --enable-gpl --enable-gnutls --enable-libmp3lame
 --enable-libx264 --enable-libx265 --enable-libdav1d --enable-libvpx
 --enable-libopus --enable-libxml2 --enable-libwebp
   libavutil      56. 43.100 / 56. 43.100
   libavcodec     58. 82.100 / 58. 82.100
   libavformat    58. 42.102 / 58. 42.102
   libavdevice    58.  9.103 / 58.  9.103
   libavfilter     7. 80.100 /  7. 80.100
   libswscale      5.  6.101 /  5.  6.101
   libswresample   3.  6.100 /  3.  6.100
   libpostproc    55.  6.100 / 55.  6.100
 [ogg @ 0x22b2c00] 1 bytes of comment header remain
 Input #0, ogg, from '09.opus':
   Duration: 00:02:58.06, start: 0.000000, bitrate: 64 kb/s
     Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
 Stream mapping:
   Stream #0:0 -> #0:0 (opus (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, wav, to 'out.wav':
   Metadata:
     ISFT            : Lavf58.42.102
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz,
 stereo, s16, 1536 kb/s
     Metadata:
       encoder         : Lavc58.82.100 pcm_s16le
 size=   33386kB time=00:02:58.06 bitrate=1536.0kbits/s speed= 359x
 video:0kB audio:33386kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.000228%
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/8649>
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