media: uapi: HEVC: Add num_delta_pocs_of_ref_rps_idx field
authorBenjamin Gaignard <benjamin.gaignard@collabora.com>
Wed, 24 May 2023 08:07:38 +0000 (16:07 +0800)
committerHans Verkuil <hverkuil-cisco@xs4all.nl>
Thu, 25 May 2023 14:21:21 +0000 (16:21 +0200)
commitae440c5da33cdb90a109f2df2a0360c67b3fab7e
tree0f61b9f627012685ac9fc7184244d30a3c79ba22
parentaaeb31c00e61f6bdc2e4a3c2c491c5455ed3f7b5
media: uapi: HEVC: Add num_delta_pocs_of_ref_rps_idx field

Some drivers firmwares parse by themselves slice header and need
num_delta_pocs_of_ref_rps_idx value to parse slice header
short_term_ref_pic_set().
Use one of the 4 reserved bytes to store this value without
changing the v4l2_ctrl_hevc_decode_params structure size and padding.

This value also exist in DXVA API.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: fix typo in num_delta_pocs_of_ref_rps_idx doc]
Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
include/uapi/linux/v4l2-controls.h