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media: hevc: Add segment address field 

If HEVC frame consists of multiple slices, segment address has to be
known in order to properly decode it.

Add segment address field to slice parameters.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Jernej Skrabec 2021-06-06 10:23:13 +02:00 committed by Mauro Carvalho Chehab
parent ed638b1d6f
commit 229e5bdcd3
2 changed files with 5 additions and 1 deletions
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3
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
View File

@ -3000,6 +3000,9 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
* - __u8
- ``pic_struct``
-
* - __u32
- ``slice_segment_addr``
-
* - __u8
- ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- The list of L0 reference elements as indices in the DPB.

3
include/media/hevc-ctrls.h
View File

@ -196,10 +196,11 @@ struct v4l2_ctrl_hevc_slice_params {
__u8 pic_struct;
/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
__u32 slice_segment_addr;
__u8 ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u8 ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
__u8 padding[5];
__u8 padding;
/* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */
struct v4l2_hevc_pred_weight_table pred_weight_table;