linux/drivers/media
Robert Jarzmik 92a8337b38 V4L/DVB (11319): pxa_camera: Enforce YUV422P frame sizes to be 16 multiples
Due to DMA constraints, the DMA chain always transfers bytes
from the QCI fifos to memory in 8 bytes units. In planar
formats, that could mean 0 padding between Y and U plane
(and between U and V plane), which is against YUV422P
standard.

Therefore, a frame size is required to be a multiple of 16
(so U plane size is a multiple of 8). It is enforced in
try_fmt() and set_fmt() primitives, be aligning height then
width on 4 multiples as need be, to reach a 16 multiple.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06 21:43:44 -03:00
..
common Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-04-03 15:24:35 -07:00
dvb V4L/DVB (11318): fix misspelling of kconfig option 2009-04-06 21:43:26 -03:00
radio V4L/DVB (11051): v4l-dvb: replace remaining references to the old mailinglist. 2009-03-30 12:43:23 -03:00
video V4L/DVB (11319): pxa_camera: Enforce YUV422P frame sizes to be 16 multiples 2009-04-06 21:43:44 -03:00
Kconfig V4L/DVB (10633): DAB: fix typo 2009-03-30 12:42:49 -03:00
Makefile V4L/DVB (8274): sms1xxx: build cleanup after driver relocation 2008-07-20 07:20:56 -03:00