diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2016-04-13 01:40:46 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-15 04:37:02 +0300 |
| commit | fb9ffa6a7f7ef39cc0f14f417b66411be5492512 (patch) | |
| tree | 5763fa3d455d88c597b49969e04fe2825a0a2a38 /include/uapi/linux/videodev2.h | |
| parent | 3e9a0e0bfafdf6c28c520d43fd64c5775d04662f (diff) | |
| download | linux-fb9ffa6a7f7ef39cc0f14f417b66411be5492512.tar.xz | |
[media] v4l: Add metadata buffer type and format
The metadata buffer type is used to transfer metadata between userspace
and kernelspace through a V4L2 buffers queue. It comes with a new
metadata capture capability and format description.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: removed left-over 'experimental' note]
[hans.verkuil@cisco.com: add newline after _v4l2-meta-format label]
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'include/uapi/linux/videodev2.h')
| -rw-r--r-- | include/uapi/linux/videodev2.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 8d351f5df2aa..7078deef2c64 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -143,6 +143,7 @@ enum v4l2_buf_type { V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10, V4L2_BUF_TYPE_SDR_CAPTURE = 11, V4L2_BUF_TYPE_SDR_OUTPUT = 12, + V4L2_BUF_TYPE_META_CAPTURE = 13, /* Deprecated, do not use */ V4L2_BUF_TYPE_PRIVATE = 0x80, }; @@ -451,6 +452,7 @@ struct v4l2_capability { #define V4L2_CAP_SDR_CAPTURE 0x00100000 /* Is a SDR capture device */ #define V4L2_CAP_EXT_PIX_FORMAT 0x00200000 /* Supports the extended pixel format */ #define V4L2_CAP_SDR_OUTPUT 0x00400000 /* Is a SDR output device */ +#define V4L2_CAP_META_CAPTURE 0x00800000 /* Is a metadata capture device */ #define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */ #define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */ @@ -2086,6 +2088,16 @@ struct v4l2_sdr_format { } __attribute__ ((packed)); /** + * struct v4l2_meta_format - metadata format definition + * @dataformat: little endian four character code (fourcc) + * @buffersize: maximum size in bytes required for data + */ +struct v4l2_meta_format { + __u32 dataformat; + __u32 buffersize; +} __attribute__ ((packed)); + +/** * struct v4l2_format - stream data format * @type: enum v4l2_buf_type; type of the data stream * @pix: definition of an image format @@ -2104,6 +2116,7 @@ struct v4l2_format { struct v4l2_vbi_format vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */ struct v4l2_sliced_vbi_format sliced; /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */ struct v4l2_sdr_format sdr; /* V4L2_BUF_TYPE_SDR_CAPTURE */ + struct v4l2_meta_format meta; /* V4L2_BUF_TYPE_META_CAPTURE */ __u8 raw_data[200]; /* user-defined */ } fmt; }; |