diff options
| author | Ezequiel Garcia <ezequiel@collabora.com> | 2020-08-25 05:52:29 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-09-01 14:13:28 +0200 |
| commit | eb44c6c9c236b1568985816254faf520fde21776 (patch) | |
| tree | a3ddbca0d8a3cc0ab477dd9aa4c55917cbac08d3 /include/media/v4l2-ctrls.h | |
| parent | cefdf805844b551e08858971e1f64e3af378d697 (diff) | |
media: uapi: h264: Split prediction weight parameters
The prediction weight parameters are only required under
certain conditions, which depend on slice header parameters.
As specified in section 7.3.3 Slice header syntax, the prediction
weight table is present if:
((weighted_pred_flag && (slice_type == P || slice_type == SP)) || \
(weighted_bipred_idc == 1 && slice_type == B))
Given its size, it makes sense to move this table to its control,
so applications can avoid passing it if the slice doesn't specify it.
Before this change struct v4l2_ctrl_h264_slice_params was 960 bytes.
With this change, it's 188 bytes and struct v4l2_ctrl_h264_pred_weight
is 772 bytes.
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-ctrls.h')
| -rw-r--r-- | include/media/v4l2-ctrls.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index f40e2cbb21d3..cb25f345e9ad 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -51,6 +51,7 @@ struct video_device; * @p_h264_scaling_matrix: Pointer to a struct v4l2_ctrl_h264_scaling_matrix. * @p_h264_slice_params: Pointer to a struct v4l2_ctrl_h264_slice_params. * @p_h264_decode_params: Pointer to a struct v4l2_ctrl_h264_decode_params. + * @p_h264_pred_weights: Pointer to a struct v4l2_ctrl_h264_pred_weights. * @p_vp8_frame_header: Pointer to a VP8 frame header structure. * @p_hevc_sps: Pointer to an HEVC sequence parameter set structure. * @p_hevc_pps: Pointer to an HEVC picture parameter set structure. @@ -74,6 +75,7 @@ union v4l2_ctrl_ptr { struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix; struct v4l2_ctrl_h264_slice_params *p_h264_slice_params; struct v4l2_ctrl_h264_decode_params *p_h264_decode_params; + struct v4l2_ctrl_h264_pred_weights *p_h264_pred_weights; struct v4l2_ctrl_vp8_frame_header *p_vp8_frame_header; struct v4l2_ctrl_hevc_sps *p_hevc_sps; struct v4l2_ctrl_hevc_pps *p_hevc_pps; |