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media: uapi: h264: Further clarify scaling lists order

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Commit 0b0393d59e ("media: uapi: h264: clarify
expected scaling_list_4x4/8x8 order") improved the
documentation on H264 scaling lists order.

This commit improves the documentation by clarifying
that the lists themselves are expected in raster scan order.

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>
This commit is contained in:
Ezequiel Garcia 2020-08-25 05:52:28 +02:00 committed by Mauro Carvalho Chehab
parent e000e1fa4b
commit cefdf80584
1 changed files with 4 additions and 2 deletions
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6
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
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@ -1725,12 +1725,14 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
- ``scaling_list_4x4[6][16]``
- Scaling matrix after applying the inverse scanning process.
Expected list order is Intra Y, Intra Cb, Intra Cr, Inter Y,
Inter Cb, Inter Cr.
Inter Cb, Inter Cr. The values on each scaling list are
expected in raster scan order.
* - __u8
- ``scaling_list_8x8[6][64]``
- Scaling matrix after applying the inverse scanning process.
Expected list order is Intra Y, Inter Y, Intra Cb, Inter Cb,
Intra Cr, Inter Cr.
Intra Cr, Inter Cr. The values on each scaling list are
expected in raster scan order.
``V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (struct)``
Specifies the slice parameters (as extracted from the bitstream)