[Vorbis] Fixing Ogg Vorbis files with incorrectly framed headers

[Tristan Miller]

Greetings.

On Thu, 27 Jul 2017 21:18:42 +0200, Tristan Miller

Possibly as the result of buggy tagging software, several hundred of
my Ogg Vorbis files exhibit the following warning when examined by
WARNING: Vorbis stream 1 does not have headers correctly framed.
Terminal header page contains additional packets or has non-zero
granulepos
Nonetheless, most media players can play these files without any
problem. A notable exception is any player using the recently
released GStreamer 1.12.1 (see
<https://bugzilla.gnome.org/show_bug.cgi?id=784530>). In fact, even
though my files were corrupted several years ago, I hadn't noticed
this until a few weeks ago when I upgraded GStreamer to the latest
version.
Can anyone advise me how I can fix my files short of re-encoding them?

I believe I've discovered how the files can be repaired without
re-encoding them:

$ ffmpeg -i corruptfile.ogg -acodec copy fixedfile.ogg

Regards,
Tristan