user/sven/linux.git/include/linux/videodev2.h, branch v3.2.45

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

2012-01-26T00:13:29Z

commit 6c06108be53ca5e94d8b0e93883d534dd9079646 upstream. 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 Signed-off-by: Dan Carpenter Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman

[media] v4l: Add AUTO option for the V4L2_CID_POWER_LINE_FREQUENCY control

2011-11-03T20:29:09Z

V4L2_CID_POWER_LINE_FREQUENCY control allows applications to instruct a driver what is the power line frequency so an appropriate filter can be used by the device to cancel flicker by compensating the light intensity ripple. Currently in the menu we have entries for 50 Hz and 60 Hz and for entirely disabling the anti-flicker filter. However some devices are capable of automatically detecting the frequency, so add V4L2_CID_POWER_LINE_FREQUENCY_AUTO entry for them. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] V4L: docbook documentation for struct v4l2_create_buffers

2011-11-03T20:28:57Z

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

[media] V4L: add two new ioctl()s for multi-size videobuffer management

2011-11-03T20:28:24Z

A possibility to preallocate and initialise buffers of different sizes in V4L2 is required for an efficient implementation of a snapshot mode. This patch adds two new ioctl()s: VIDIOC_CREATE_BUFS and VIDIOC_PREPARE_BUF and defines respective data structures. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab

[media] videodev2: Reorganize standard macros and add a few more macros

2011-10-08T11:01:06Z

Reorganize the standards macro and add a few more, that will be used on msp3400 in order to allow it to detect the audio standard. Signed-off-by: Mauro Carvalho Chehab

[media] videodev2.h: add V4L2_CTRL_FLAG_VOLATILE

2011-09-21T12:52:21Z

Add a new VOLATILE control flag that is set for volatile controls. That way applications know whether the value of the control is volatile (i.e. can change continuously) or not. Until now this was an internal property, but it is useful to know in userspace as well. A typical use case is the gain value when autogain is on. In that case the hardware will continuously adjust the gain based various environmental factors. This patch just adds and documents the flag, it's not yet used. Signed-off-by: Hans Verkuil Acked-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab

[media] v4l: events: Define V4L2_EVENT_FRAME_SYNC

2011-08-29T15:37:15Z

Define a frame sync event to tell user space when the reception of a frame starts. Signed-off-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] v4l: add control definitions for codec devices

2011-07-27T20:55:40Z

Add control definitions and documentation for controls specific to codec devices. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab

[media] v4l: add fourcc definitions for compressed formats

2011-07-27T20:55:39Z

Add fourcc definitions and documentation for the following compressed formats: H264, H264 without start codes, MPEG1/2/4 ES, XVID, VC1 Annex G and Annex L compliant. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab

[media] v4l: Add a class and a set of controls for flash devices

2011-07-27T20:55:39Z

Add a control class and a set of controls to support LED and Xenon flash devices. An example of such a device is the adp1653. Signed-off-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab