diff options
| author | Sakari Ailus <[email protected]> | 2023-02-21 19:37:29 +0200 |
|---|---|---|
| committer | Hans Verkuil <[email protected]> | 2024-04-29 14:56:36 +0200 |
| commit | 89345c2a6ff9c48c5f1ea336e66e46dfc38a467a (patch) | |
| tree | d005233f365411e6db0dc6d846c15693180a69e3 /include/uapi/linux | |
| parent | 1d92152339587174363c3c9f7561de95646d5625 (diff) | |
media: v4l: Support line-based metadata capture
Many camera sensors, among other devices, transmit embedded data and image
data for each CSI-2 frame. This embedded data typically contains register
configuration of the sensor that has been used to capture the image data
of the same frame.
The embedded data is received by the CSI-2 receiver and has the same
properties as the image data, including that it is line based: it has
width, height and bytesperline (stride).
Add these fields to struct v4l2_meta_format and document them.
Also add V4L2_FMT_FLAG_META_LINE_BASED to tell a given format is
line-based i.e. these fields of struct v4l2_meta_format are valid for it.
Signed-off-by: Sakari Ailus <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/videodev2.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 0f44b8486ea8..647ce3419bd8 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -877,6 +877,7 @@ struct v4l2_fmtdesc { #define V4L2_FMT_FLAG_CSC_YCBCR_ENC 0x0080 #define V4L2_FMT_FLAG_CSC_HSV_ENC V4L2_FMT_FLAG_CSC_YCBCR_ENC #define V4L2_FMT_FLAG_CSC_QUANTIZATION 0x0100 +#define V4L2_FMT_FLAG_META_LINE_BASED 0x0200 /* Frame Size and frame rate enumeration */ /* @@ -2424,10 +2425,19 @@ struct v4l2_sdr_format { * struct v4l2_meta_format - metadata format definition * @dataformat: little endian four character code (fourcc) * @buffersize: maximum size in bytes required for data + * @width: number of data units of data per line (valid for line + * based formats only, see format documentation) + * @height: number of lines of data per buffer (valid for line based + * formats only) + * @bytesperline: offset between the beginnings of two adjacent lines in + * bytes (valid for line based formats only) */ struct v4l2_meta_format { __u32 dataformat; __u32 buffersize; + __u32 width; + __u32 height; + __u32 bytesperline; } __attribute__ ((packed)); /** |