[FFmpeg-trac] #6275(undetermined:new): ubuntu: mov to webm (libvpx) conversion fails

[FFmpeg]

#6275: ubuntu: mov to webm (libvpx) conversion fails
-------------------------------------+-------------------------------------
             Reporter:  blacktrash   |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug: conversion of certain inputs fails on ubuntu, works on
 e.g. Mac
 How to reproduce:
 {{{
 $ uname -mprsiov
 Linux 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64
 x86_64 x86_64 GNU/Linux
 $ ffmpeg -version
 ffmpeg version N-84735-g3b80f73 Copyright (c) 2000-2017 the FFmpeg
 developers
 built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
 configuration: --enable-gpl --enable-nonfree --disable-doc --disable-
 ffplay --disable-ffserver --disable-libxcb --enable-libspeex --enable-
 libx264 --enable-libfdk-aac --enable-libvpx --enable-libvorbis
 libavutil      55. 51.100 / 55. 51.100
 libavcodec     57. 86.103 / 57. 86.103
 libavformat    57. 68.100 / 57. 68.100
 libavdevice    57.  3.101 / 57.  3.101
 libavfilter     6. 78.101 /  6. 78.101
 libswscale      4.  3.101 /  4.  3.101
 libswresample   2.  4.100 /  2.  4.100
 libpostproc    54.  2.100 / 54.  2.100
 ffmpeg -v verbose -i test.mov -c:v libvpx -c:a libvorbis -b:a 64k
 test.webm
 ffmpeg version N-84735-g3b80f73 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
   configuration: --enable-gpl --enable-nonfree --disable-doc --disable-
 ffplay --disable-ffserver --disable-libxcb --enable-libspeex --enable-
 libx264 --enable-libfdk-aac --enable-libvpx --enable-libvorbis
   libavutil      55. 51.100 / 55. 51.100
   libavcodec     57. 86.103 / 57. 86.103
   libavformat    57. 68.100 / 57. 68.100
   libavdevice    57.  3.101 / 57.  3.101
   libavfilter     6. 78.101 /  6. 78.101
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 [h264 @ 0x29d74e0] Reinit context to 1920x1088, pix_fmt: yuv420p
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2017-03-22T18:49:20.000000Z
   Duration: 00:01:31.40, start: 0.000000, bitrate: 25639 kb/s
     Stream #0:0(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz,
 stereo, s16, 1536 kb/s (default)
     Metadata:
       creation_time   : 2017-03-22T18:49:20.000000Z
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Video: h264 (Main), 1 reference frame (avc1 /
 0x31637661), yuv420p(tv, bt709, left), 1920x1080 (1920x1088), 24100 kb/s,
 SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2500 tbn, 5k tbc (default)
     Metadata:
       creation_time   : 2017-03-22T18:49:20.000000Z
       handler_name    : Apple Alias Data Handler
       encoder         : H.264
 Stream mapping:
   Stream #0:1 -> #0:0 (h264 (native) -> vp8 (libvpx))
   Stream #0:0 -> #0:1 (pcm_s16le (native) -> vorbis (libvorbis))
 Press [q] to stop, [?] for help
 [graph_1_in_0_0 @ 0x2c31c60] tb:1/48000 samplefmt:s16 samplerate:48000
 chlayout:0x3
 [format_out_0_1 @ 0x2c32000] auto-inserting filter 'auto_resampler_0'
 between the filter 'Parsed_anull_0' and the filter 'format_out_0_1'
 [auto_resampler_0 @ 0x2c32ca0] ch:2 chl:stereo fmt:s16 r:48000Hz -> ch:2
 chl:stereo fmt:fltp r:48000Hz
 [h264 @ 0x29fb460] Reinit context to 1920x1088, pix_fmt: yuv420p
 [h264 @ 0x2a648c0] Increasing reorder buffer to 1
 Too many packets buffered for output stream 0:1.
 [libvorbis @ 0x29f2ae0] 32 frames left in the queue on closing
 Conversion failed!
 }}}

 - works on other platforms, like {{{Darwin 16.4.0 Darwin Kernel Version
 16.4.0: Thu Dec 22 22:53:21 PST 2016; root:xnu-3789.41.3~3/RELEASE_X86_64
 x86_64 i386}}}
 - works with shorter inputs, even a copy of the first 10 seconds of the
 above test.mov
 - works with 0686537002278f8802ecf2af1d5b2d0d5afe308a - I haven't had time
 to bisect what the exact breaking change is

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6275>
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