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[media] V4L: add two new ioctl()s for multi-size videobuffer management
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Wed, 28 Sep 2011 14:34:06 +0000 (11:34 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Thu, 3 Nov 2011 20:28:24 +0000 (18:28 -0200)
A possibility to preallocate and initialise buffers of different sizes
in V4L2 is required for an efficient implementation of a snapshot
mode. This patch adds two new ioctl()s: VIDIOC_CREATE_BUFS and
VIDIOC_PREPARE_BUF and defines respective data structures.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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