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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2024-10-31 08:50:04 +0100 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2024-11-08 13:38:06 +0100 |
| commit | c1fcd68e7bd45d518aa38b63400c41f91c193cba (patch) | |
| tree | f0fae19526c1b9478aa14efcee6eef654fb3c9fc | |
| parent | 0503440f8477e38adf757d50ee026e0fd5af7684 (diff) | |
| download | lwn-c1fcd68e7bd45d518aa38b63400c41f91c193cba.tar.gz lwn-c1fcd68e7bd45d518aa38b63400c41f91c193cba.zip | |
Documentation: media: improve V4L2_CID_MIN_BUFFERS_FOR_*, doc
Clearly state that the V4L2_CID_MIN_BUFFERS_FOR_OUTPUT and
V4L2_CID_MIN_BUFFERS_FOR_CAPTURE controls are required for
stateful codecs.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
| -rw-r--r-- | Documentation/userspace-api/media/v4l/control.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/userspace-api/media/v4l/control.rst b/Documentation/userspace-api/media/v4l/control.rst index 57893814a1e5..9253cc946f02 100644 --- a/Documentation/userspace-api/media/v4l/control.rst +++ b/Documentation/userspace-api/media/v4l/control.rst @@ -290,13 +290,15 @@ Control IDs This is a read-only control that can be read by the application and used as a hint to determine the number of CAPTURE buffers to pass to REQBUFS. The value is the minimum number of CAPTURE buffers that is - necessary for hardware to work. + necessary for hardware to work. This control is required for stateful + decoders. ``V4L2_CID_MIN_BUFFERS_FOR_OUTPUT`` ``(integer)`` This is a read-only control that can be read by the application and used as a hint to determine the number of OUTPUT buffers to pass to REQBUFS. The value is the minimum number of OUTPUT buffers that is - necessary for hardware to work. + necessary for hardware to work. This control is required for stateful + encoders. .. _v4l2-alpha-component: |