[Bug 766596] vaapipostproc: some video info is dropped on src caps.

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=766596

--- Comment #5 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
(In reply to Hyunjun Ko from comment #0)
> While I'm looking into enabling passthrough (#751876) in vaapipostproc, I
> found some src caps attrs are missing.
> 
> In my case,
> sink caps : video/x-raw(memory:VASurface), format=(string)NV12,
> width=(int)854, height=(int)480, interlace-mode=(string)progressive,
> pixel-aspect-ratio=(fraction)1/1, chroma-site=(string)jpeg,
> colorimetry=(string)bt601, framerate=(fraction)25/1
> 
> src caps : video/x-raw(memory:VASurface), format=(string)NV12,
> width=(int)854, height=(int)480, framerate=(fraction)25/1,
> interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1
> 
> You can see chroma-site and colorimetry is missing in src caps.
> 
> This is caused by this patch
> https://cgit.freedesktop.org/gstreamer/gstreamer-vaapi/commit/
> ?id=4d1b11ed03759ef702c675cbacdb5ea543daa305
> 
> IMHO, this should be fixed to enable passthrough in vaapipostproc.


mmmh... IMHO, we should remove chroma-site and colorimetry to capsfeature
VASurface in src caps of the decoder.

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