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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2020-08-25 05:52:33 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-09-01 14:13:28 +0200 |
| commit | f9879eb378295e8a912d2d10c872c45f3e19421b (patch) | |
| tree | d26a45b4ea8b003861b2334d616dc20c0aa1ad9c /include/media/v4l2-h264.h | |
| parent | media: uapi: h264: Clean DPB entry interface (diff) | |
| download | linux-f9879eb378295e8a912d2d10c872c45f3e19421b.tar.xz linux-f9879eb378295e8a912d2d10c872c45f3e19421b.zip | |
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>
Diffstat (limited to 'include/media/v4l2-h264.h')
| -rw-r--r-- | include/media/v4l2-h264.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h index bc9ebb560ccf..1a5f26fc2a9a 100644 --- a/include/media/v4l2-h264.h +++ b/include/media/v4l2-h264.h @@ -33,7 +33,7 @@ struct v4l2_h264_reflist_builder { struct { s32 pic_order_count; int frame_num; - u16 pic_num; + u32 pic_num; u16 longterm : 1; } refs[V4L2_H264_NUM_DPB_ENTRIES]; s32 cur_pic_order_count; |