[Bug 699382] v4l2: dmabuf handling is broken

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=699382
  GStreamer | gst-plugins-good | git

--- Comment #8 from Benjamin Gaignard <benjamin.gaignard at gmail.com> 2014-03-31 09:27:38 UTC ---
Linaro is working on a "central dma-buf allocator".

One of the goal of this allocator is to solve the problem of memory you
describe by implementing "delayed allocation" feature. The devices have to
attach themselves and their memory constraints to the buffer with a call to
dma_buf_attach. The buffer allocation will be done only at the first call of
dma_buf_map_attachement, at this time all the devices memory constraints should
have been collected and the "central allocator" could select an allocator
(vmalloc, dma-coherent ...) that match with those constraints.

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