Add constants for the keyboard modifiers that should be used for vertical
zoom, horizontal zoom, and horizontal scrolling in the main editor window,
and use these where appropriate rather than using Keyboard::PrimaryModifier
and friends directly.
* average picture quality is worse
* ..but seeking works accurately
(no more PTS/DTS mess with Quicktime files)
* ffmpeg transcode to mpeg4 retains PTS, DTS ( to mjpeg does not)
* eventually harvid&xjadeo need to be
updated to seek to non-monotonic PTS, DTS timestamps
Replace AU_STATE_SUPPORT compile-time define with NO_PLUGIN_STATE and make it prevent plugin state setting, preset loading, preset saving and plugin state saving. Blocks on these actions exist partially in the backend and partially in the GUI (this latter class are not absolute, and should OSC or MIDI be able to drive Plugin::save_preset() the block could be circumvented). Set NO_PLUGIN_STATE if --freebie is used at waf-configure time
NOTE: this breaks backwards compatibility with icsd and
harvid < 0.3.0 which do not report their settings.
It may also conflict with harvid running on localhost in a chroot.
Ideally this will be a warning only.
That the user can choose to ignore this and should get the option
to stop the video-server and re-start it using a different docroot.
On clicking on a region that is part of an active edit group with the
'selection' property enabled, its equivalent regions also become selected.
Thus, there's no need to reset the selection to the equivalent
regions when performing mouse drags on the region, and trim/fade in/fade
out/move/copy will always operate on the existing region selection if there
is one.
Fixes#5515.
