[FFmpeg-trac] #6705(undetermined:new): Encoding to -f null is broken

[FFmpeg]

#6705: Encoding to -f null is broken
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 Encoding to `-f null` sometimes fails since
 af1761f7b5b1b72197dc40934953b775c2d951cc
 {{{
 $ ffmpeg -i fate-suite/svq3/Vertical400kbit.sorenson3.mov -f null -
 ffmpeg version N-87628-g148c8e8 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl
   libavutil      55. 77.101 / 55. 77.101
   libavcodec     57.106.104 / 57.106.104
   libavformat    57. 83.100 / 57. 83.100
   libavdevice    57.  9.101 / 57.  9.101
   libavfilter     6.106.100 /  6.106.100
   libswscale      4.  7.103 /  4.  7.103
   libswresample   2.  8.100 /  2.  8.100
   libpostproc    54.  6.100 / 54.  6.100
 Guessed Channel Layout for Input Stream #0.1 : mono
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fate-
 suite/svq3/Vertical400kbit.sorenson3.mov':
   Metadata:
     creation_time   : 2001-03-20T16:17:18.000000Z
     title           : Vertical Online SV3 Demo
     title-eng       : Vertical Online SV3 Demo
     artist          : Logan Kelsey
     artist-eng      : Logan Kelsey
     copyright       : © Vertical Online 2001
     copyright-eng   : © Vertical Online 2001
     encoder         : Sorenson Video 3
     encoder-eng     : Sorenson Video 3
   Duration: 00:00:43.58, start: 0.000000, bitrate: 580 kb/s
     Stream #0:0(eng): Video: svq3 (SVQ3 / 0x33515653), yuvj420p(pc),
 320x240, 391 kb/s, 30.02 fps, 30 tbr, 600 tbn, 600 tbc (default)
     Metadata:
       creation_time   : 2001-03-20T16:17:18.000000Z
       handler_name    : Apple Alias Data Handler
       encoder         : Sorenson Video 3
     Stream #0:1(eng): Audio: adpcm_ima_qt (ima4 / 0x34616D69), 44100 Hz,
 mono, s16p, 176 kb/s (default)
     Metadata:
       creation_time   : 2001-03-20T16:17:18.000000Z
       handler_name    : Apple Alias Data Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (svq3 (native) -> wrapped_avframe (native))
   Stream #0:1 -> #0:1 (adpcm_ima_qt (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 [adpcm_ima_qt @ 0x28dc980] Multiple frames in a packet.
 Too many packets buffered for output stream 0:1.
 Conversion failed!
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6705>
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