From: Hans Verkuil Date: Thu, 31 Oct 2024 07:50:04 +0000 (+0100) Subject: Documentation: media: improve V4L2_CID_MIN_BUFFERS_FOR_*, doc X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c1fcd68e7bd45d518aa38b63400c41f91c193cba;p=users%2Fwilly%2Flinux.git 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 Reviewed-by: Laurent Pinchart --- 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: