[FFmpeg-trac] #3849(undetermined:open): ffvp9 fails to decode file libpvpx decodes just fine

[FFmpeg]

#3849: ffvp9 fails to decode file libpvpx decodes just fine
-------------------------------------+-------------------------------------
             Reporter:  jimbankoski  |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:  vp9 =>
 * component:  avcodec => undetermined
 * reproduced:  1 => 0


Comment:

 For future tickets:
 Please always provide a {{{ffmpeg}}} command line that allows to reproduce
 the issue together with the complete, uncut console output.
 {{{
 $ ffmpeg -i ffvp9_fails_where_libvpx.succeeds.webm -ss 10 -t 10 -qscale 2
 out.avi
 ffmpeg version N-65523-g9a16214 Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Aug 11 2014 17:58:58 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      54.  1.100 / 54.  1.100
   libavcodec     56.  0.100 / 56.  0.100
   libavformat    56.  0.100 / 56.  0.100
   libavdevice    56.  0.100 / 56.  0.100
   libavfilter     5.  0.100 /  5.  0.100
   libswscale      3.  0.100 /  3.  0.100
   libswresample   1.  0.100 /  1.  0.100
   libpostproc    53.  0.100 / 53.  0.100
 Input #0, matroska,webm, from 'ffvp9_fails_where_libvpx.succeeds.webm':
   Metadata:
     encoder         : libwebm-0.2.1.0
   Duration: 00:00:26.20, start: 0.000000, bitrate: 800 kb/s
     Stream #0:0(eng): Video: vp9, yuv420p, 640x360, SAR 1:1 DAR 16:9, 30
 fps, 30 tbr, 1k tbn, 1k tbc (default)
 Please use -q:a or -q:v, -qscale is ambiguous
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf56.0.100
     Stream #0:0(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 640x360
 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default)
     Metadata:
       encoder         : Lavc56.0.100 mpeg4
 Stream mapping:
   Stream #0:0 -> #0:0 (vp9 (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 frame=  300 fps=0.0 q=2.0 Lsize=    2099kB time=00:00:10.00
 bitrate=1719.6kbits/s
 video:2086kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.613195%
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3849#comment:2>
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