linux-dev/drivers/media/platform/vicodec/vicodec-codec.c, branch masterLinux kernel development work - see feature brancheshttps://git.zx2c4.com/linux-dev/atom/drivers/media/platform/vicodec/vicodec-codec.c?h=master2018-08-31T12:27:43Zmedia: vicodec: rename and use proper fwht prefix for codec2018-08-31T12:27:43ZHans Verkuilhans.verkuil@cisco.com2018-08-21T06:53:34Zurn:sha1:21abebf06dc97721238b77cf03d0be8c839a3898
The codec source is generic and not vicodec specific. It can be used
by other drivers or userspace as well. So rename the source and header
to something more generic (codec-fwht.c/h) and prefix the defines, types
and functions with fwht_.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
media: vicodec: improve handling of uncompressable planes2018-08-31T12:27:01ZHans Verkuilhans.verkuil@cisco.com2018-08-21T07:09:02Zurn:sha1:abe9d19ae3fd50d729cc6668f996ab27da414449
Exit the loop immediately once it is clear that the plane
cannot be compressed. Also clear the PCODED bit and fix the
PCODED check (it should check for the bit) in the caller code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
media: vicodec: simplify blocktype checking2018-08-31T12:26:21ZHans Verkuilhans.verkuil@cisco.com2018-08-21T07:00:07Zurn:sha1:98efd5525ac092d20ae126936c87c02be0588bdc
Simplify some blocktype/is_intra checks.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
media: vicodec: add support for more pixel formats2018-08-31T12:11:33ZHans Verkuilhans.verkuil@cisco.com2018-08-19T14:58:55Zurn:sha1:29a7a5e99080fead74d5172053b2f22f7004eb93
Add support for 4:2:2, 4:4:4 and RGB 24/32 bits formats.
This makes it a lot more useful, esp. as a simple video compression
codec for use with v4l2-ctl/qvidcap.
Note that it does not do any conversion between e.g. 4:2:2 and 4:2:0
or RGB and YUV: it still just compresses planes be they Y/U/V or R/G/B.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
media: vicodec: add QP controls2018-08-31T12:09:33ZHans Verkuilhans.verkuil@cisco.com2018-08-19T14:18:11Zurn:sha1:48568b0c30c28e0a5daf56ba36278f68f10f8f29
Instead of hardcoding the quantization parameter (or 'DEADZONE_WIDTH'
as it was called in the codec) make this configurable through two
controls: one for I frames, one for P frames.
Also allow changing these parameters and the GOP_SIZE parameter while
streaming.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
media: vicodec: current -> cur2018-07-27T10:39:57ZHans Verkuilhverkuil@xs4all.nl2018-07-26T07:11:01Zurn:sha1:64004337d0d8842b8993107c8427b80d6e36646c
'current' is also defined in asm-generic/current.h.
When compiling this driver for older kernels with the media_build system,
this header is included via compat.h and it no longer compiles. Rename
current to cur.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
media: vicodec: add the FWHT software codec2018-07-25T12:15:57ZHans Verkuilhans.verkuil@cisco.com2018-07-20T07:49:21Zurn:sha1:251d6fe9a6753f8d2b5b7565c7044dbd82d63d62
Add a software codec based on the Fast Walsh Hadamard Transform.
The original FWHT codec was developed by Tom aan de Wiel, and it was
turned into 'proper' kernel code by Hans Verkuil, with a lot of
performance and memory improvements.
Signed-off-by: Tom aan de Wiel <tom.aandewiel@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>