forked from Minki/linux
c7361ae1e7
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 <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
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