Searched hist:f9879eb378295e8a912d2d10c872c45f3e19421b (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/include/media/ |
| H A D | v4l2-h264.h | diff f9879eb378295e8a912d2d10c872c45f3e19421b Mon Aug 24 22:52:33 CDT 2020 Ezequiel Garcia <ezequiel@collabora.com> media: uapi: h264: Increase size of DPB entry pic_num
DPB entry PicNum maximum value is 2*MaxFrameNum for interlaced
content (field_pic_flag=1).
As specified, MaxFrameNum is 2^(log2_max_frame_num_minus4 + 4)
and log2_max_frame_num_minus4 is in the range of 0 to 12,
which means pic_num should be a 32-bit field.
The v4l2_h264_dpb_entry struct needs to be padded to avoid a hole,
which might be also useful to allow future uAPI extensions.
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>
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| /openbmc/linux/Documentation/userspace-api/media/v4l/ |
| H A D | ext-ctrls-codec.rst | diff f9879eb378295e8a912d2d10c872c45f3e19421b Mon Aug 24 22:52:33 CDT 2020 Ezequiel Garcia <ezequiel@collabora.com> media: uapi: h264: Increase size of DPB entry pic_num
DPB entry PicNum maximum value is 2*MaxFrameNum for interlaced
content (field_pic_flag=1).
As specified, MaxFrameNum is 2^(log2_max_frame_num_minus4 + 4)
and log2_max_frame_num_minus4 is in the range of 0 to 12,
which means pic_num should be a 32-bit field.
The v4l2_h264_dpb_entry struct needs to be padded to avoid a hole,
which might be also useful to allow future uAPI extensions.
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>
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