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| author | Sakari Ailus | 2017-06-16 14:38:31 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2018-12-14 11:10:48 +0100 |
| commit | 72148d1a57e7c76745e68c94ad5d235240d26ac8 (patch) | |
| tree | 763aa6efc8e8d4802fa69608f4565b03670bc46b /include | |
| parent | media: v4l2-fwnode: Fix setting V4L2_MBUS_DATA_ACTIVE_HIGH/LOW flag (diff) | |
| download | kernel-qcow2-linux-72148d1a57e7c76745e68c94ad5d235240d26ac8.tar.gz kernel-qcow2-linux-72148d1a57e7c76745e68c94ad5d235240d26ac8.tar.xz kernel-qcow2-linux-72148d1a57e7c76745e68c94ad5d235240d26ac8.zip | |
media: v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT
The V4L2_BUF_TYPE_META_OUTPUT mirrors the V4L2_BUF_TYPE_META_CAPTURE with
the exception that it is an OUTPUT type. The use case for this is to pass
buffers to the device that are not image data but metadata. The formats,
just as the metadata capture formats, are typically device specific and
highly structured.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tian Shu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/media/v4l2-ioctl.h | 17 | ||||
| -rw-r--r-- | include/uapi/linux/videodev2.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index aa4511aa5ffc..8533ece5026e 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -48,6 +48,9 @@ struct v4l2_fh; * @vidioc_enum_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic * for metadata capture + * @vidioc_enum_fmt_meta_out: pointer to the function that implements + * :ref:`VIDIOC_ENUM_FMT <vidioc_enum_fmt>` ioctl logic + * for metadata output * @vidioc_g_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for video capture * in single plane mode @@ -80,6 +83,8 @@ struct v4l2_fh; * Radio output * @vidioc_g_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata capture + * @vidioc_g_fmt_meta_out: pointer to the function that implements + * :ref:`VIDIOC_G_FMT <vidioc_g_fmt>` ioctl logic for metadata output * @vidioc_s_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for video capture * in single plane mode @@ -112,6 +117,8 @@ struct v4l2_fh; * Radio output * @vidioc_s_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata capture + * @vidioc_s_fmt_meta_out: pointer to the function that implements + * :ref:`VIDIOC_S_FMT <vidioc_g_fmt>` ioctl logic for metadata output * @vidioc_try_fmt_vid_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for video capture * in single plane mode @@ -146,6 +153,8 @@ struct v4l2_fh; * Radio output * @vidioc_try_fmt_meta_cap: pointer to the function that implements * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata capture + * @vidioc_try_fmt_meta_out: pointer to the function that implements + * :ref:`VIDIOC_TRY_FMT <vidioc_g_fmt>` ioctl logic for metadata output * @vidioc_reqbufs: pointer to the function that implements * :ref:`VIDIOC_REQBUFS <vidioc_reqbufs>` ioctl * @vidioc_querybuf: pointer to the function that implements @@ -314,6 +323,8 @@ struct v4l2_ioctl_ops { struct v4l2_fmtdesc *f); int (*vidioc_enum_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_fmtdesc *f); + int (*vidioc_enum_fmt_meta_out)(struct file *file, void *fh, + struct v4l2_fmtdesc *f); /* VIDIOC_G_FMT handlers */ int (*vidioc_g_fmt_vid_cap)(struct file *file, void *fh, @@ -342,6 +353,8 @@ struct v4l2_ioctl_ops { struct v4l2_format *f); int (*vidioc_g_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_format *f); + int (*vidioc_g_fmt_meta_out)(struct file *file, void *fh, + struct v4l2_format *f); /* VIDIOC_S_FMT handlers */ int (*vidioc_s_fmt_vid_cap)(struct file *file, void *fh, @@ -370,6 +383,8 @@ struct v4l2_ioctl_ops { struct v4l2_format *f); int (*vidioc_s_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_format *f); + int (*vidioc_s_fmt_meta_out)(struct file *file, void *fh, + struct v4l2_format *f); /* VIDIOC_TRY_FMT handlers */ int (*vidioc_try_fmt_vid_cap)(struct file *file, void *fh, @@ -398,6 +413,8 @@ struct v4l2_ioctl_ops { struct v4l2_format *f); int (*vidioc_try_fmt_meta_cap)(struct file *file, void *fh, struct v4l2_format *f); + int (*vidioc_try_fmt_meta_out)(struct file *file, void *fh, + struct v4l2_format *f); /* Buffer handlers */ int (*vidioc_reqbufs)(struct file *file, void *fh, diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 2db1635de956..a9d47b1b9437 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -145,6 +145,7 @@ enum v4l2_buf_type { V4L2_BUF_TYPE_SDR_CAPTURE = 11, V4L2_BUF_TYPE_SDR_OUTPUT = 12, V4L2_BUF_TYPE_META_CAPTURE = 13, + V4L2_BUF_TYPE_META_OUTPUT = 14, /* Deprecated, do not use */ V4L2_BUF_TYPE_PRIVATE = 0x80, }; @@ -469,6 +470,7 @@ struct v4l2_capability { #define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */ #define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */ #define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */ +#define V4L2_CAP_META_OUTPUT 0x08000000 /* Is a metadata output device */ #define V4L2_CAP_TOUCH 0x10000000 /* Is a touch device */ |