[Bug 737599] Some decoders need AVI's header suggested buffer size

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=737599
  GStreamer | gst-plugins-base | git

--- Comment #2 from Nicolas Dufresne (stormer) <nicolas.dufresne at collabora.co.uk> 2014-09-29 16:24:41 UTC ---
Review of attachment 287361:
 --> (https://bugzilla.gnome.org/review?bug=737599&attachment=287361)

I'm not sure this is the right fix. That would mean the "some decoder" only
works with muxed stream that do expose this information. I'm not saying this
issue does not exist, e.g. v4l2videodec currently pick an arbitrary buffer
size, but in the longer term, the idea is that it should be able to reallocate
it's input buffers to fit large size. When demuxer will start using downstream
buffer pools, they should setup the pool to fit this size, so the decoder never
have to reallocate. I'd like a wider reflection on this to take place, so we
actually solve the global issue, and not just AVI use case for "some decoder".

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