kernel/linux.git/Documentation/userspace-api/media, branch v5.19

media: lirc: add missing exceptions for lirc uapi header file

2022-05-26T21:30:17+00:00

Commit e5499dd7253c ("media: lirc: revert removal of unused feature flags") reintroduced unused feature flags in the lirc uapi header, but failed to reintroduce the necessary exceptions for the docs. Fixes: e5499dd7253c ("media: lirc: revert removal of unused feature flags") Signed-off-by: Sean Young Signed-off-by: Linus Torvalds

media: uapi: Add IPU3 packed Y10 format

2022-05-17T07:36:03+00:00

Some platforms with an Intel IPU3 have an IR sensor producing 10 bit greyscale format data that is transmitted over a CSI-2 bus to a CIO2 device - this packs the data into 32 bytes per 25 pixels. Add an entry to the uAPI header defining that format. Signed-off-by: Daniel Scally Acked-by: Andy Shevchenko Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

media: doc: Document dual use of H.264 pic_num/frame_num

2022-05-13T12:58:29+00:00

These two fields need documentation as they have dual meaning. It is also confusing since pic_num is a derived value from frame_num, so this should help application developers. If we ever need to make a V2 of this API, I would suggest to remove pic_num entirely. Signed-off-by: Nicolas Dufresne Reviewed-by: Sebastian Fricke Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: Documentation/media: Remove incorrect statement

2022-05-13T09:02:20+00:00

I tried to debug streaming in libcamera, where I stumbled upon this. I asked around on IRC where I was told that this statement in the documentation is wrong, so I'm submitting a removal. Signed-off-by: Dorota Czaplejewicz Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: docs-rst: Append HEVC specific term

2022-05-13T09:02:19+00:00

Describe the coding tree unit as replacement for the macroblock in the HEVC codec. Highlight a key difference of the HEVC codec to predecessors like AVC(H.264) to give a better overview of the differences between the coding standards. [hverkuil: replaced the 'corresponds to' symbol with the full text for clarity] Signed-off-by: Sebastian Fricke Acked-by: Jernej Skrabec Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: docs: media: uvcvideo: Use linux-media mailing list

2022-05-08T05:08:23+00:00

As discussed with other developers, the linux-uvc-devel mailing list is not very useful anymore, and it's better to send people to the general linux-media mailing list. Replace/remove the old mailing list address in uvcvideo.rst and MAINTAINERS. Signed-off-by: Jonathan Neuschäfer Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

media: ext-ctrls-codec.rst: fix indentation

2022-04-25T22:55:02+00:00

The indentation was wrong, causing the documentation build to fail with: Sphinx parallel build error: docutils.utils.SystemMessagePropagation: Error parsing content block for the "flat-table" directive: two-level bullet list expected, but row 1 does not contain a second-level bullet list... flat-table:: :header-rows: 0 :stub-columns: 0 * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE_RANDOM`` - The whole frame is completely refreshed randomly after the specified period. * - ``V4L2_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE_CYCLIC`` - The whole frame MBs are completely refreshed in cyclic order after the specified period. make[1]: *** [Documentation/Makefile:96: htmldocs] Error 2 make: *** [Makefile:1678: htmldocs] Error 2 Link: https://lore.kernel.org/linux-media/62b53cbb-f3e2-ed8a-bba2-3f4145d9b8db@xs4all.nl Fixes: fcbc4acf8b8d ("media: v4l2-ctrls: Add intra-refresh type control") Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: v4l2-ctrls: Add intra-refresh type control

2022-04-24T07:35:01+00:00

Add a control to set intra-refresh type. Signed-off-by: Dikshita Agarwal Reviewed-by: Nicolas Dufresne Acked-by: Hans Verkuil Signed-off-by: Stanimir Varbanov Signed-off-by: Mauro Carvalho Chehab

media: v4l: Add Qualcomm custom compressed pixel formats

2022-04-24T07:32:47+00:00

Add custom Qualcomm raw compressed pixel formats. They are used in Qualcomm SoCs to optimize the interconnect bandwidth. Signed-off-by: Stanimir Varbanov Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: media.h: Add new media link type

2022-04-24T06:58:16+00:00

To describe in the kernel the connection between devices and their supporting peripherals (for example, a camera sensor and the vcm driving the focusing lens for it), add a new type of media link to introduce the concept of these ancillary links. Add some elements to the uAPI documentation to explain the new link type, their purpose and some aspects of their current implementation. Reviewed-by: Laurent Pinchart Signed-off-by: Daniel Scally Reviewed-by: Jean-Michel Hautbois Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab