This currently only has effect if the loop connection is
made/unmade while the option was set/unset.
Toggling the option itself won't trigger a graph re-order
* videotimeline now immediately marks the session dirty on
every state-changing operation
* video-montor is polled every 2.5 seconds for menu-relevant state info
(ontop, OSD,..) and every 30 seconds for full state (window pos, size,..)
* new interface to query the video-monitor for its state and wait for
all replies - terminating the process and using ::wait() is no longer
required
* Ardour> quit and Ardour > close-session does no longer close the video
session to enforce video-monitor state sync but uses above new interface
the videotimeline is a global unique instance that is allocated during
startup and deleted on exit. The Scopedconnection is not deleted
with the session.
When extracting and importing audio from a video,
mark the audio region's position as locked to the
video.
While locked, the audio region can only be moved
by moving the video with a granularity of one Timecode
frame.
Update region_ops.txt to better describe the current behaviour of
Editor::get_regions_from_selection_and_edit_point(), and fix a couple of
comments that still referred to the no-longer-existing 'edit' property of
route groups.
* Menu > View > Video Monitor -- bi-directional communication
with xjadeo for window-state and OSD.
* fix saving state on session close (wait for xjadeo to terminate)
Make Editor::get_regions_from_selection_and_edit_point() only consider the
selected tracks when finding regions to operate on if there are no regions
selected, and never if the edit point is 'mouse'.
* only really relevant for testing/debugging.
* the back-end functions are still used for 'normal' operation
and called implicitly when opening/closing a video.
* call stop_video_server() when removing a video.
* range: pre/postfix with black video-frames
* fix A/V offset - decode and skip source until offset is reached
* use spinning progress-bar during decode&skip
* use video-stream index in stream-map
* fix audio-export abort; stop freewheeling
* re-indent code
