[FFmpeg-trac] #7578(undetermined:open): converting to ogg (opus) with wrong -ss leads to infinite loop

[FFmpeg]

#7578: converting to ogg (opus) with wrong -ss leads to infinite loop
-------------------------------------+-------------------------------------
             Reporter:  halaei       |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  opus         |               Resolution:
  deadlock                           |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:   => opus deadlock
 * priority:  normal => important
 * version:  unspecified => git-master
 * status:  new => open
 * reproduced:  0 => 1


Comment:

 For future tickets: Please remember to always test current FFmpeg git head
 before reporting issues.
 {{{
 $ ffmpeg -i fate-suite/mp3-conformance/compl.bit -acodec opus -strict -2
 -ss 6 -f null -
 ffmpeg version N-92549-g3317155 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-gpl --enable-libxml2 --enable-gnutls
   libavutil      56. 24.101 / 56. 24.101
   libavcodec     58. 40.100 / 58. 40.100
   libavformat    58. 23.100 / 58. 23.100
   libavdevice    58.  6.100 / 58.  6.100
   libavfilter     7. 46.101 /  7. 46.101
   libswscale      5.  4.100 /  5.  4.100
   libswresample   3.  4.100 /  3.  4.100
   libpostproc    55.  4.100 / 55.  4.100
 [mp3 @ 0x3f52700] Estimating duration from bitrate, this may be inaccurate
 Input #0, mp3, from 'fate-suite/mp3-conformance/compl.bit':
   Duration: 00:00:05.19, start: 0.000000, bitrate: 64 kb/s
     Stream #0:0: Audio: mp3, 48000 Hz, mono, fltp, 64 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (mp3 (mp3float) -> opus (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf58.23.100
     Stream #0:0: Audio: opus, 48000 Hz, mono, fltp, 48 kb/s
     Metadata:
       encoder         : Lavc58.40.100 opus
 [opus @ 0x3f60840] Trying to remove 960 samples, but the queue is empty
 [null @ 0x3f56d40] Encoder did not produce proper pts, making some up.
 [opus @ 0x3f60840] Trying to remove 960 samples, but the queue is empty
     Last message repeated 37393 times
 ^C
 }}}
 Also reproducible with:
 {{{
 $ ffmpeg -f f32le -i /dev/null -acodec opus -strict -2 -f null -
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7578#comment:1>
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