On Wednesday 18 November 2009 23:43:59 m-karicheri2@xxxxxx wrote: > From: Muralidharan Karicheri <m-karicheri2@xxxxxx> > > Some minor updates (comment format) made to previous v3. > > This is v3 of the digital video timings APIs implementation. > This has updates based on comments received against v2 of the patch. Hopefully > this can be merged to 2.6.33 if there are no more comments. > > This adds the above APIs to the v4l2 core. This is based on version v1.2 > of the RFC titled "V4L - Support for video timings at the input/output interface" > Following new ioctls are added:- > > - VIDIOC_ENUM_DV_PRESETS > - VIDIOC_S_DV_PRESET > - VIDIOC_G_DV_PRESET > - VIDIOC_QUERY_DV_PRESET > - VIDIOC_S_DV_TIMINGS > - VIDIOC_G_DV_TIMINGS > > Please refer to the RFC for the details. This code was tested using vpfe > capture driver on TI's DM365. Following is the test configuration used :- > > Blue Ray HD DVD source -> TVP7002 -> DM365 (VPFE) ->DDR > > A draft version of the TVP7002 driver (currently being reviewed in the mailing > list) was used that supports V4L2_DV_1080I60 & V4L2_DV_720P60 presets. > > A loopback video capture application was used for testing these APIs. This calls > following IOCTLS :- > > - verify the new v4l2_input capabilities flag added > - Enumerate available presets using VIDIOC_ENUM_DV_PRESETS > - Set one of the supported preset using VIDIOC_S_DV_PRESET > - Get current preset using VIDIOC_G_DV_PRESET > - Detect current preset using VIDIOC_QUERY_DV_PRESET > - Using stub functions in tvp7002, verify VIDIOC_S_DV_TIMINGS > and VIDIOC_G_DV_TIMINGS ioctls are received at the sub device. > - Tested on 64bit platform by Hans Verkuil > > TODOs : > > - Update v4l2-apps for the new ioctl (will send another patch after > compilation issue is resolved) > > Signed-off-by: Muralidharan Karicheri <m-karicheri2@xxxxxx> > Signed-off-by: Hans Verkuil <hverkuil@xxxxxxxxx> I actually had not signed off on this yet, but now I do: Signed-off-by: Hans Verkuil <hverkuil@xxxxxxxxx> Thanks! Hans > Reviewed-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx> -- Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
