Before reading trying to use video inputs, you should read and understand how
themes work in general (see :doc:`theme`). Video inputs are available from
-Nageru 1.6.0 onwards. There is currently no support for audio from video inputs;
-all videos are silent. (This may change in the future.) If a file contains
-multiple video streams, like different angles or resolutions, only the first
-will be used.
+Nageru 1.6.0 onwards, and from Nageru 1.7.2, you can get audio from video inputs
+like any other input. (Be advised, though, that making a general video player
+that can maintain A/V sync on all kinds of video files is a hard problem,
+so there may still be bugs in this support.)
+
+If a file contains multiple video streams, like different
+angles or resolutions, only the first will be used. Similarly, only the first
+audio stream is used, and it's always converted to 48 kHz stereo.
Basic video inputs
This will make it play at twice its usual speed. Your rate should not be
negative nor exactly zero. You can set a rate to e.g. 1e-6 if you want to
in practice stop the video; once you change it back to normal speed,
-the next frame will resume playing.
+the next frame will resume playing. Be aware that changing the rate may
+make the audio behave unpredictably; there are no attempts to do time
+stretching or change the pitch accordingly.
+
+Finally, if you want to forcibly abort the playing of a video,
+even one that is blocking on I/O, you can use (since Nageru 1.7.2)::
+
+ video:disconnect()
+
+This is particularly useful when dealing with network streams, as FFmpeg does not
+always properly detect if the connection has been lost. See :ref:`menus`
+for a way to expose such functionality to the operator.
Integration with CasparCG