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| author | Benjamin Gaignard <benjamin.gaignard@collabora.com> | 2021-06-03 13:50:01 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-06-08 16:08:59 +0200 |
| commit | 35f51f6091bcf2cb90d9ac2f41465c415a34632e (patch) | |
| tree | d4dfef9f513494c43c08292ce985389daf8701f7 /include/media | |
| parent | 31ad15e688e58a94779971f428c414b7a3f882d1 (diff) | |
| download | lwn-35f51f6091bcf2cb90d9ac2f41465c415a34632e.tar.gz lwn-35f51f6091bcf2cb90d9ac2f41465c415a34632e.zip | |
media: uapi: Add a control for HANTRO driver
The HEVC HANTRO driver needs to know the number of bits to skip at
the beginning of the slice header.
That is a hardware specific requirement so create a dedicated control
for this purpose.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/hevc-ctrls.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h index 1b702c3230fb..53c0038c792b 100644 --- a/include/media/hevc-ctrls.h +++ b/include/media/hevc-ctrls.h @@ -224,4 +224,17 @@ struct v4l2_ctrl_hevc_decode_params { __u64 flags; }; +/* MPEG-class control IDs specific to the Hantro driver as defined by V4L2 */ +#define V4L2_CID_CODEC_HANTRO_BASE (V4L2_CTRL_CLASS_CODEC | 0x1200) +/* + * V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP - + * the number of data (in bits) to skip in the + * slice segment header. + * If non-IDR, the bits to be skipped go from syntax element "pic_output_flag" + * to before syntax element "slice_temporal_mvp_enabled_flag". + * If IDR, the skipped bits are just "pic_output_flag" + * (separate_colour_plane_flag is not supported). + */ +#define V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP (V4L2_CID_CODEC_HANTRO_BASE + 0) + #endif |