[media] coda: allow userspace to set compressed buffer size in a certain range

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For small frame sizes, allocating 1 MiB per compressed buffer is a waste of
space. On the other hand, incompressible 1080p data can produce JPEGs larger
than 1 MiB at higher quality settings. Allow userspace to set the compressed
buffer size and clamp the value to a sensible range.
Also set the initial sizeimage to a value inside the range allowed by try_fmt.
While at it, reduce the default image size to a maximum of 1920*1088 (otherwise
JPEG will default to 8k*8k and 96 MiB buffers).

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

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Philipp Zabel 2014-10-02 14:08:35 -03:00 • committed by Mauro Carvalho Chehab

parent 619165628d

commit d4c6a416b9

2 changed files with 19 additions and 10 deletions

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4

drivers/media/platform/coda/coda-bit.c

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25

drivers/media/platform/coda/coda-common.c

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