[Bug 784969] matroskamux: Should use SimpleBlocks for Opus and probably other audio codecs

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=784969

Sebastian Dröge (slomo) <slomo at coaxion.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Matroska/Opus generated     |matroskamux: Should use
                   |with GStreamer does not     |SimpleBlocks for Opus and
                   |play in VLC                 |probably other audio codecs
           Severity|normal                      |minor

--- Comment #3 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
The problem here is that VLC apparently only likes Opus in SimpleBlocks. But we
can't write SimpleBlocks here as we don't know the duration of all buffers. We
could assume that duration of the first to be the default duration, and in 99%
of the cases that would work, but there's no guarantee.

When making matroskamux output SimpleBlocks, VLC plays this just fine. This
seems like a bug in VLC (nothing requires SimpleBlocks to be used for Opus in
the spec), and an inefficiency on our side

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