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@xxxxxxxxx>
---
Documentation/userspace-api/media/v4l/control.rst | 6 ++++--
1 file 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:
--
2.45.2
