[Bug 660770] videodecoder, videoencoder: support "partial" frames / slices for raw video

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=660770

--- Comment #13 from Guillaume Desmottes <gdesmott at gnome.org> ---
(In reply to Aaron Boxer from comment #6)
> I am currently looking into Ultra Low Latency JPEG 2000.
> 
> This mode of J2K encodes and decodes video at the stripe level (a J2K strip
> has
> a height of 4 pixels)
> 
> This can be used in broadcast, for example, to get sub-frame latency.
> 
> I think a case could be made to support partial frames, at least for 
> JPEG 2000.
> 
> Also, there is a new low-latency ISO standard called JPEG-XS:
> 
> https://jpeg.org/items/20150709_press.html


Hi Aaron. Do you know any lib implementing this low latency mode? It doesn't
seem supported by openjpeg.

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