linux-toradex.git/include/media/v4l2-mem2mem.h, branch v4.3.2

[media] Docbook: Fix comments at v4l2-mem2mem.h

2015-08-22T08:35:50+00:00

Warning(.//include/media/v4l2-mem2mem.h:50): No description found for parameter 'lock'
Warning(.//include/media/v4l2-mem2mem.h:50): No description found for parameter 'unlock'
Warning(.//include/media/v4l2-mem2mem.h:167): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:177): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:188): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:197): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:206): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:215): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:226): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:235): No description found for parameter 'm2m_ctx'

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Jonathan Corbet

[media] v4l2-mem2mem: add support for prepare_buf

2015-06-09T20:25:35+00:00

This was never added for some reason, so add it now.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-mem2mem: export v4l2_m2m_try_schedule

2014-07-22T15:06:50+00:00

Some drivers might allow to decode remaining frames from an internal ringbuffer
after a decoder stop command. Allow those to call v4l2_m2m_try_schedule
directly.

Signed-off-by: Michael Olbrich 
Signed-off-by: Philipp Zabel 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: Add mem2mem ioctl and file operation helpers

2013-12-04T17:34:24+00:00

This patch adds ioctl helpers to the V4L2 mem-to-mem API, so we can avoid
several ioctl handlers in the mem-to-mem video node drivers that are simply
a pass-through to the v4l2_m2m_* calls. These helpers will only be useful
for drivers that use same mutex for both OUTPUT and CAPTURE queue, which
is the case for all currently in tree v4l2 m2m drivers. In order to use
the helpers the drivers are required to use struct v4l2_fh.

Signed-off-by: Sylwester Nawrocki 
Signed-off-by: Kyungmin Park 
Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] mem2mem: add support for hardware buffered queue

2013-07-26T13:00:33+00:00

On mem2mem decoders with a hardware bitstream ringbuffer, to drain the
buffer at the end of the stream, remaining frames might need to be decoded
from the bitstream buffer without additional input buffers being provided.
To achieve this, allow a queue to be marked as buffered by the driver, and
allow scheduling of device_runs when buffered ready queues are empty.
This also allows a driver to copy input buffers into their bitstream
ringbuffer and immediately mark them as done to be dequeued.
The motivation for this patch is hardware assisted h.264 reordering support
in the coda driver. For high profile streams, the coda can hold back
out-of-order frames, causing a few mem2mem device runs in the beginning, that
don't produce any decompressed buffer at the v4l2 capture side. At the same
time, the last few frames can be decoded from the bitstream with mem2mem device
runs that don't need a new input buffer at the v4l2 output side. The decoder
command ioctl can be used to put the decoder into the ringbuffer draining
end-of-stream mode.

Signed-off-by: Philipp Zabel 
Acked-by: Sylwester Nawrocki 
Signed-off-by: Kamil Debski 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-mem2mem: add v4l2_m2m_create_bufs helper

2013-06-03T18:51:11+00:00

Signed-off-by: Philipp Zabel 
Signed-off-by: Kamil Debski 
Signed-off-by: Mauro Carvalho Chehab

[media] media: mem2mem: make reference to struct m2m_ops in the core const

2012-12-19T15:35:18+00:00

The mem2mem core doesn't change struct m2m_ops, provided by the driver,
make references to it const.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: vb2: add buffer exporting via dmabuf

2012-11-25T19:21:00+00:00

This patch adds extension to videobuf2-core. It allow to export an mmap buffer
as a DMABUF file descriptor.

Signed-off-by: Tomasz Stanislawski 
Signed-off-by: Kyungmin Park 
Acked-by: Laurent Pinchart 
Acked-by: Hans Verkuil 
Tested-by: Mauro Carvalho Chehab 
Signed-off-by: Mauro Carvalho Chehab

[media] media v4l2-mem2mem: fix src/out and dst/cap num_rdy

2012-09-18T15:13:34+00:00

src bufs belong to out queue, dst bufs belong to in queue. Currently
this is not a real problem since all users currently need exactly one
input and one output buffer.

Signed-off-by: Sascha Hauer 
Acked-by: Marek Szyprowski 
Acked-by: Pawel Osciak 
Signed-off-by: Mauro Carvalho Chehab

[media] Update Pawel Osciak's e-mail address

2011-03-22T07:55:05+00:00

Signed-off-by: Pawel Osciak 
Signed-off-by: Mauro Carvalho Chehab