[FFmpeg-trac] #1183(undetermined:new): MP4->webm stopped playing in firefox (with git bisect)

FFmpeg trac at avcodec.org
Tue Apr 10 02:06:42 CEST 2012

#1183: MP4->webm stopped playing in firefox (with git bisect)
             Reporter:  MarkRose     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  webm         |               Blocked By:
  firefox                            |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
 Recently the webm files generated by FFmpeg stopped working in Firefox
 (although they play fine in Chrome). I've compiled FFmpeg with the latest
 git of libvpx and x264. Using git bisect, the bad commit is somewhere
 between 967facb6950549d0cc4e0ba79a056ebc6f93a049 (which
 configures/compiles with `make` and produces a bad webm file) and
 f1fdd208cc0a1fce7aaaf6b0fe72b013525f49e0 (which configures/compiles with
 `make` and produces a good webm file). The intermediate commits don't
 configure properly with the options I use (they complain about an
 unrecognized --enable-postproc).

 I'm compiling ffmpeg with: ./configure --enable-gpl --enable-version3
 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora
 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
 --enable-libspeex --enable-libschroedinger --enable-hwaccel=h264_vaapi &&
 make clean && make

 I'm running ffmpeg like: ffmpeg -y -i 7000000009434.mp4  -vcodec libvpx
 -b:v 800k -bt 400k -vsync 2  -s 640x358 -acodec libvorbis -ac 2 -ar 44100
 -ab 48k -async 441000  7000000009434.webm

 The mp4 file is a file outputted from an ffmpeg compiled last week.

 I'm doing all the compiling on an up-to-date 64-bit Ubuntu 11.10.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1183>
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