linux/drivers/media
Ian Armstrong c240ad00af V4L/DVB (6712): ivtv: ivtv yuv stream handling change
Currently the yuv output stream buffer is divided into blocks whose size
depend on the broadcast standard selected during the driver init phase.
However, the standard can be changed after the init phase. This effectively
breaks the yuv output stream handler, since it relies on the different yuv
planes being block aligned.

This patch changes the setup, so that the block size is always the same. The
decoder dma function has been modified to cope with the fact that the second
yuv plane may no longer be block aligned. The start of the yuv frame must
still be at the beginning of a block, so the stream write function has also
been modified to ensure this is always true.

Also, the stream write function will now initiate a yuv dma transfer as soon
as a full frame is ready. It will not wait until the current write request
has completed, or the stream buffer becomes full.

Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25 19:03:09 -02:00
..
common V4L/DVB (6685): ir-keymaps.c: extra keys on winfast Y04G0033 remote 2008-01-25 19:03:00 -02:00
dvb V4L/DVB (6681): tda18271: rename 'debug' to 'tda18271_debug' 2008-01-25 19:03:00 -02:00
radio V4L/DVB (6616): drivers/media/radio: Add missing "space" 2008-01-25 19:02:15 -02:00
video V4L/DVB (6712): ivtv: ivtv yuv stream handling change 2008-01-25 19:03:09 -02:00
Kconfig V4L/DVB (6443): make tda9887 build selectable via Kconfig 2008-01-25 19:01:10 -02:00
Makefile V4L/DVB (6814): Makefile: always enter video/ 2007-12-13 17:58:05 -02:00