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53 commits

Author SHA1 Message Date
Nicolas Dufresne
1ab90ababa v4l2: Add dmabuf export support 
This can be enabled sing io-mode=dmabuf. This will enabled mmap base
drivers to export the buffers as dmabuf.
 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
7b00d7ac46 v4l2allocator: Guaranty queued state integrety 
Because of the buf in videobuf2, dqbuf may leave the DONE flag being,
which would implied that the buffer is queued. As this has been broken
for 4 years, simply guaranty the state flags integrity when doing
qbuf/dqbuf.

See https://patchwork.linuxtv.org/patch/23641/
 2014-05-08 15:56:36 -04:00
Nicolas Dufresne
fd13e9e96d Implement V4l2 Allocator 
This goal of this allocator is mainly to allow tracking the memory.
Currently, when a buffer memory has been modified, the buffer and it's
memory is disposed and lost until the stream is restarted.
 2014-05-08 15:56:36 -04:00