[Bug 583890] v4l2: Implement V4L2_MEMORY_USERPTR support

Wed Nov 20 12:38:10 PST 2013

https://bugzilla.gnome.org/show_bug.cgi?id=583890
  GStreamer | gst-plugins-good | git

Nicolas Dufresne <nicolas.dufresne> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nicolas.dufresne at collabora.
                   |                            |co.uk
            Summary|v4l2: should use pad_alloc  |v4l2: Implement
                   |(V4L2_MEMORY_USERPTR        |V4L2_MEMORY_USERPTR support
                   |support)                    |

--- Comment #35 from Nicolas Dufresne <nicolas.dufresne at collabora.co.uk> 2013-11-20 20:38:00 UTC ---
Right now I'm into experimenting USERPTR support for output device. The patter
would be:

decoder -> v4l2sink

The decoder would produce mmap buffer and v4l2sink will consume them using
USERPTR. The other way around would have been nice, but is not support on the
HW I'm working on (Exynos 4). None of the patches here are useful for 1.0.

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