linux-toradex.git/include/linux/videodev2.h, branch v3.4.73

[media] V4L: Improve the selection API documentation

2012-03-19T18:33:24+00:00

Make the VIDIOC_G/S_SELECTION ioctls documentation more consistent
with the rest of media Docbook, use capital letters where necessary
and correct few minor errors.

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

[media] V4L: Add JPEG compression control class

2012-02-28T21:53:16+00:00

The V4L2_CID_JPEG_CLASS control class is intended to expose various
adjustable parameters of JPEG encoders and decoders. Following controls
are defined:

 - V4L2_CID_JPEG_CHROMA_SUBSAMPLING,
 - V4L2_CID_JPEG_RESTART_INTERVAL,
 - V4L2_CID_JPEG_COMPRESSION_QUALITY,
 - V4L2_CID_JPEG_ACTIVE_MARKER.

This covers only a part of relevant standard specifications. More
controls should be added in future if required.

The purpose of V4L2_CID_JPEG_CLASS class is also to replace some
functionality covered by VIDIOC_S/G_JPEGCOMP ioctls, i.e. the JPEG
markers presence and compression quality control. The applications
and drivers should switch from the ioctl to control based API, as
described in the subsequent patches for the Media API DocBook.

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

[media] v4l2-ctrls: add new controls for MPEG decoder devices

2012-02-14T15:43:49+00:00

As discussed during the 2011 V4L-DVB workshop we want to create a proper V4L2
decoder API that replaces the DVBv5 API that has been used until now.

This adds the four controls necessary to be able to switch ivtv over to this
new API.

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

[media] v4l2: add VIDIOC_(TRY_)DECODER_CMD

2012-02-14T15:41:42+00:00

As discussed during the 2011 V4L-DVB workshop, the API in dvb/video.h should
be replaced by a proper V4L2 API. This patch turns the VIDEO_(TRY_)DECODER_CMD
ioctls into proper V4L2 ioctls.

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

[media] V4L2: Add per-device-node capabilities

2012-01-23T18:34:27+00:00

If V4L2_CAP_DEVICE_CAPS is set, then the new device_caps field is filled with
the capabilities of the opened device node.

The capabilities field traditionally contains the capabilities of the physical
device, being a superset of all capabilities available at the several device
nodes. E.g., if you open /dev/video0, then if it contains VBI caps then that means
that there is a corresponding vbi node as well. And the capabilities field of
both the video and vbi nodes should contain identical caps.

However, it would be very useful to also have a capabilities field that contains
just the caps for the currently open device, hence the new CAP bit and field.

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

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2012-01-15T20:49:56+00:00

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits)
  [media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver
  mb86a20s: Add a few more register settings at the init seq
  mb86a20s: Group registers into the same line
  [media] [PATCH] don't reset the delivery system on DTV_CLEAR
  [media] [BUG] it913x-fe fix typo error making SNR levels unstable
  [media] cx23885: Query the CX25840 during enum_input for status
  [media] cx25840: Add support for g_input_status
  [media] rc-videomate-m1f.c Rename to match remote controler name
  [media] drivers: media: au0828: Fix dependency for VIDEO_AU0828
  [media] convert drivers/media/* to use module_platform_driver()
  [media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB
  [media] Exynos4 JPEG codec v4l2 driver
  [media] doc: v4l: selection: choose pixels as units for selection rectangles
  [media] v4l: s5p-tv: mixer: fix setup of VP scaling
  [media] v4l: s5p-tv: mixer: add support for selection API
  [media] v4l: emulate old crop API using extended crop/compose API
  [media] doc: v4l: add documentation for selection API
  [media] doc: v4l: add binary images for selection API
  [media] v4l: add support for selection api
  [media] hd29l2: fix review findings
  ...

[media] v4l: add support for selection api

2012-01-11T01:17:45+00:00

This patch introduces new api for a precise control of cropping and composing
features for video devices. The new ioctls are VIDIOC_S_SELECTION and
VIDIOC_G_SELECTION.

Signed-off-by: Tomasz Stanislawski 
Signed-off-by: Kyungmin Park 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L/DVB: v4l2-ioctl: integer overflow in video_usercopy()

2012-01-07T13:47:22+00:00

If ctrls->count is too high the multiplication could overflow and
array_size would be lower than expected.  Mauro and Hans Verkuil
suggested that we cap it at 1024.  That comes from the maximum
number of controls with lots of room for expantion.

$ grep V4L2_CID include/linux/videodev2.h | wc -l
211

Cc: stable 
Signed-off-by: Dan Carpenter 
Signed-off-by: Mauro Carvalho Chehab

[media] gspca: Add jl2005bcd sub driver

2012-01-06T12:39:45+00:00

Written by Theodore Kilgore

With minor changes by Hans de Goede:
-Code style fixes
-Correct the verbose level on various PDEBUG messages
-Make error messages use pr_err instead of PDEBUG
-Document the jl20 pixel format

Signed-off-by: Theodore Kilgore 
Signed-off-by: Hans de Goede 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: Add new alpha component control

2011-12-30T16:05:08+00:00

The V4L2_CID_ALPHA_COMPONENT control is intended for the video capture
or memory-to-memory devices that are capable of setting up the per-pixel
alpha component to some arbitrary value. It allows to set the alpha
component for all pixels to an arbitrary value.

Signed-off-by: Sylwester Nawrocki 
Signed-off-by: Kyungmin Park 
Acked-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab