media: cedrus: Use H264_SCALING_MATRIX only when required

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Baseline, Main and Extended profiles are specified to
not support a scaling matrix. Also, High profiles
can optionally specify a scaling matrix, using
SPS and PPS NAL units.

To meet this expectation, applications are required to
set the V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX control
and set the V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT
flag only when a scaling matrix is specified for a picture.

Implement this on cedrus, which has hardware support for this
case.

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

...

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Ezequiel Garcia 2020-08-25 05:52:45 +02:00 • committed by Mauro Carvalho Chehab

parent e6de6b3fac

commit b3a23db0e2

2 changed files with 7 additions and 1 deletions

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2

drivers/staging/media/sunxi/cedrus/cedrus.c

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6

drivers/staging/media/sunxi/cedrus/cedrus_h264.c

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