Ezequiel Garcia 4245232fa6 media: uapi: h264: Increase size of 'first_mb_in_slice' field ...

Slice header syntax element 'first_mb_in_slice' can point
to the last macroblock, currently the field can only reference
65536 macroblocks which is insufficient for 8K videos.

Although unlikely, a 8192x4320 video (where macroblocks are 16x16),
would contain 138240 macroblocks on a frame.

As per the H264 specification, 'first_mb_in_slice' can be up to
PicSizeInMbs - 1, so increase the size of the field to 32-bits.

Note that v4l2_ctrl_h264_slice_params struct will be modified
in a follow-up commit, and so we defer its 64-bit padding.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

2020-09-01 14:13:28 +02:00

..

accelerators

docs: ocxl.rst: add it to the uAPI book

2019-07-15 11:03:02 -03:00

ioctl

remoteproc: Add remoteproc character device interface

2020-08-04 20:16:37 -07:00

media

media: uapi: h264: Increase size of 'first_mb_in_slice' field

2020-09-01 14:13:28 +02:00

index.rst

media: docs: get rid of Documentation/media/

2020-04-14 10:36:50 +02:00

no_new_privs.rst

doc: ReSTify no_new_privs.txt

2017-05-18 10:30:09 -06:00

seccomp_filter.rst

Documentation: seccomp: unify list indentation

2019-03-18 12:00:28 -06:00

spec_ctrl.rst

Documentation: Add section about CPU vulnerabilities for Spectre

2019-06-26 11:42:41 -06:00

unshare.rst

doc-rst: fix inline emphasis in unshare.rst

2017-05-18 10:23:10 -06:00