Hi Sakari,
On 06/16/2017 05:14 PM, Sakari Ailus wrote:
The V4L2_BUF_TYPE_META_OUTPUT buffer type complements the metadata buffer
types support for OUTPUT buffers, capture being already supported. This is
intended for similar cases than V4L2_BUF_TYPE_META_CAPTURE but for output
buffers, e.g. device parameters that may be complex and highly
hierarchical data structure. Statistics are a current use case for
metadata capture buffers.
There's a warning related to references from make htmldocs; I'll fix that
in v2 / non-RFC version.
Sakari Ailus (2):
v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT
docs-rst: v4l: Document V4L2_BUF_TYPE_META_OUTPUT interface
Documentation/media/uapi/v4l/buffer.rst | 3 +++
Documentation/media/uapi/v4l/dev-meta.rst | 32 ++++++++++++++----------
Documentation/media/uapi/v4l/vidioc-querycap.rst | 3 +++
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 2 ++
drivers/media/v4l2-core/v4l2-ioctl.c | 25 ++++++++++++++++++
drivers/media/v4l2-core/videobuf2-v4l2.c | 1 +
include/media/v4l2-ioctl.h | 17 +++++++++++++
include/uapi/linux/videodev2.h | 2 ++
8 files changed, 72 insertions(+), 13 deletions(-)
I would very much appreciate it if you can also provide patches for v4l2-ctl
and v4l2-compliance. Should be quite easy, just follow what I did for the
META_CAPTURE support.
Regards,
Hans
