ffmpeg ogv video conversion fails by outputting pixelated video

Please provide your ffmpeg command and the complete terminal output. Could you also provide a gtk-recordmydesktop sample file?

I can confirm this bug, as can several other people who posted their garbled videos on YouTube. I first noticed it after uploading one of my .ogv vids to YouTube. After I saw how garbled it was I decided to try and covert it here locally using ffmpeg. I got the same result as what YouTube produced.

My command was simple:

ffmpeg -i input.ogv output.flv

I can confirm its buggy! :( help

Please attach your input.ogv that causes this problem.

I suspect that it uses an ogv feature not supported by ffmpeg 0.5. Then this bug is most likely a duplicate of #305286

it's buggy

and here is the output for converting ogv to avi

FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --extra-version=4:0.5.1-1ubuntu1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
  libavutil 49.15. 0 / 49.15. 0
  libavcodec 52.20. 1 / 52.20. 1
  libavformat 52.31. 0 / 52.31. 0
  libavdevice 52. 1. 0 / 52. 1. 0
  libavfilter 0. 4. 0 / 0. 4. 0
  libswscale 0. 7. 1 / 0. 7. 1
  libpostproc 51. 2. 0 / 51. 2. 0
  built on Mar 4 2010 12:35:30, gcc: 4.4.3
Input #0, ogg, from '/home/mb/Desktop/1.ogv':
  Duration: 00:01:27.66, start: 0.000000, bitrate: 741 kb/s
    Stream #0.0: Invalid Codec type -1
    Stream #0.1: Video: theora, yuv420p, 1280x800, PAR 1:1 DAR 8:5, 15 tbr, 15 tbn, 15 tbc
    Stream #0.2: Audio: vorbis, 22050 Hz, mono, s16, 89 kb/s
Output #0, avi, to '/home/mb/Desktop/11.avi':
    Stream #0.0: Video: mpeg4, yuv420p, 1280x800 [PAR 1:1 DAR 8:5], q=2-31, 200 kb/s, 90k tbn, 15 tbc
    Stream #0.1: Audio: mp2, 22050 Hz, mono, s16, 64 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.2 -> #0.1
[mpeg4 @ 0x8444940]removing common factors from framerate
Press [q] to stop encoding
frame= 425 fps= 73 q=2.0 Lsize= 2719kB time=87.25 bitrate= 255.3kbits/s
video:1957kB audio:682kB global headers:0kB muxing overhead 3.031703%

@Reinhard

As requested, uploaded the original file (sample.ogv) and the file converted to flv using ffmpeg (sample.flv).

I've just verified that this is fixed in ffmpeg 0.6

That is fantastic Reinhard. Thank you for testing this.

Could you please indicate which PPA I should use to get ffmpeg 0.6

On Wed, May 12, 2010 at 16:22:32 (CEST), komputes wrote:

> That is fantastic Reinhard. Thank you for testing this.
>
> Could you please indicate which PPA I should use to get ffmpeg 0.6

ffmpeg 0.6 is not ready. I've been testing with a preprelease snapshot
that I haven't published yet.

I will first deploy in maverick and then see if I can arrange a backport
ppa, but don't hold your breath.

--
Gruesse/greetings,
Reinhard Tartler, KeyID 945348A4

I am seeing this pixelation too, after upgrade to 10.04.
This is the command I have been using:
ffmpeg -i video.ogv -acodec vorbis -vcodec libtheora video.avi

Thanks,
-joe

I am seeing this pixelation too, after upgrade to 10.04.
This is the command I have been using:
ffmpeg -i video.ogv -acodec vorbis -vcodec libtheora video.avi

Thanks,
-joe

@joe Azzato - that is not a bug, it is simply the result of re-compressing video. take a look at the sample.flv attachment for an example of this bug. to avoid the pixelation you are experiencing, you simply need to specify a greater video bitrate.

@komputes - Thanks that worked very well! I appreciate the quick response!
All the best!

-Joe

This bug was fixed in the package ffmpeg - 4:0.6~svn20100505-1ubuntu1

---------------
ffmpeg (4:0.6~svn20100505-1ubuntu1) maverick; urgency=low

  * merge from debian/experimental. remaining changes:
    - don't disable encoders
    - don't build against libfaad, libdirac and libopenjpeg (all in universe)

ffmpeg (4:0.6~svn20100505-1) experimental; urgency=low

  * update to new upstream. Closes: #569727
    - fixes various segfaults and other minor feature improvements
      Closes: #374931, #522449, #501891, #559712, #420231, #369127, #538082,
              #298095, #294422, #561553, #525385, #495274, #420230
      LP: #305286, #457106, #529200, #301723, #305315, #336479, #420230,
          #412063, #428912, #432181, #440591, #453732, #453732, #453732,
      #514259, #515243, #521472, #530186, #530186, #197842, #483317,
     #483317, #539407, #280098, #331255, #566107, #569823, #570305,
     #573190
  * Fixup lintian overrides for new upstream snapshot
  * Bump Standards-Version to 3.8.4
  * Many upstream changes, see upstream Changelog for details
 -- Reinhard Tartler <email address hidden> Wed, 26 May 2010 00:01:17 +0200