[Bug 611157] video: API to signal stereoscopic and multiview video

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=611157
  GStreamer | gst-plugins-base | unspecified

--- Comment #83 from Gwenole Beauchesne <gb.devel at gmail.com> 2014-06-18 12:58:29 UTC ---
I know we definitely should create a Wiki, but here is another comment before I
forget about it. :)

The model by which we store multiple view components into a single
GstVideoBuffer and map the desired view component by id from it is not going to
work. This is implied by memory optimizations from the H.264 MVC decoding
process. Indeed, the size of the DPB is not a multiple of the number of views.
This means that you are not going to always have all view components from the
same access unit available at the same time. The primary reason is this would
require much more memory (video surfaces) otherwise. So, I am not really sure
we want to keep all of them around beyond what the DPB handling rules require.

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