[Bug 668565] Typefind can't detect VC-1 raw stream

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=668565
  GStreamer | gst-plugins-base | 0.10.35

Gwenole Beauchesne <gb.devel> changed:

           What    |Removed                     |Added
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                 CC|                            |gb.devel at gmail.com

--- Comment #3 from Gwenole Beauchesne <gb.devel at gmail.com> 2013-01-24 06:33:20 UTC ---
(In reply to comment #0)
> I'm using GStreamer Core Library version 0.10.35.2 and all plugins from .2
> prerelease, and it looks like typefind can't detect VC-1 raw stream and
> determine it as "video/x-h264, stream-format=(string)byte-stream,
> probability=80", so decoder can't decode this stream. The stream is not
> corrupted and other player (mplayer, with ffmpeg's libavformat) detects it as
> "raw VC-1" and plays this stream correctly.

I could patch typefinder to detect raw VC-1 bitstreams, but I don't think
that'd be useful without the vc1parse element enabled. Anyhow, I will cook a
patch.

BTW, do we need to differentiate formats (WMV3 vs. WVC1) here or is this left
to some other element? Rationale: people usually make "vc1" to express VC-1
Advanced profile only, and Simple/Main profiles are labelled as "wmv3".

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