ffmpeg does not store metadata in converting to ogg, when using vorbis encoder

needs forwarding upstream

forwarded upstream

Thank you for your bug report. This bug has been reported to the developers of the software.

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

Sorry, I told wrong earlier in the description that using libvorbis encoder would be a workaround. At least in Karmic, libvorbis does not preserve tags. However, there is (or was) at least one advantage in libvorbis versus vorbis: "The vorbis (libavc) codec provides an entry in the header of the ogg container reporting the average bitrate, but it doesn't appear to provide a similar bitrate header in the vorbis stream itself. Some programs may not report the bitrate value because of this." (http://www.linuxquestions.org/questions/linux-software-2/ffmpeg-vorbis-vs-libvorbis-782346/) I am not sure, if this is deliberate. You can see the difference in codec information at least when playing by VLC 1.0.2. (It also shows wrong duration for ogg tracks no matter which of the three encoders you use.)

Could someone tell, if the tag issue is fixed for the libvorbis encoder used by ffmpeg, too?

The issue is not fixed for vorbis and libvorbis encoders in 10.04.

As a correction to #6, VLC does not show track length for track encoded by vorbis, and does show wrong length for track encoded by libvorbis encoder or oggenc. This applies to VLC 1.0.6, too. Anyway, as oggenc is the reference encoder, there must be a bug in VLC.

The libvorbis issue seems to be fixed in libav-tools and ffmpeg 6:0.8.8 (Tested in ubuntu 13.10), but oggenc seems to be faster nowdays.