Port (or Tracks) can be safely added during playback, however
the disk-reader's playback buffer is initially empty. This lead to
false-positive Underrun() signals when processing takes place
before or concurrently with re-filling the disk-buffer for the new
channels.
Now new empty buffers are ignored, and produce silence until the
initial refill is complete. There is however no per-channel
de-click in, yet.
This fixes: play some audio track, ctrl+drag a region to the
drop-zone, creating a new track while playing.
Main features: Plugin (Select & Edit)
1. Plugin Select: When a track is selected that has PluginInserts, pushing the "Plug-In" button on a mackie will list these across the strips. Clicking a vpot of a strip enables editing the parameters of this selected plugin.
2. Plugin Edit: When a Plugin is selected for editing, the input parameters of the plugin are shown across the channel strips and the vpot is assigned the corresponsing AutomationControl for the parameter.
Minor features
- When the number of plugins or the number of parameters exceeds the number of strips available on the surface, one can flip through "pages" of views using the Cursor Left and Right keys (this logic I took from http://www.emagic.de/media/support/content/manuals/LogicControl_en.pdf)
- When in the Plugin Select mode, rearranging the plugins in the mixer strip is reflected on the surface.
- When in Plugin Edit mode, rearranging the plugins in the mixer strip still retains the edit view of the selected plugin (rearranging does not take away the current subview)
- When removing a plugin in the mixer strip, this is reflected in Plugin Select, while the view jumps to Pan/Surround (the None subview) when in Plugin Edit mode.
- Removing a track resets the subview to None
- When in a Subview that is track-specific (Track, EQ, Send, Plug-In, Inst), selecting a different track retains the subview but updates the channel displays and vpot assignments accordingly. When in Plugin Edit mode for track A, and track B is selected, it changes to Plugin Select mode for track B (if plugins are present).
Only compare playback latency, delaylines in tracks do not
push back the capture latency to the source.
The delayline on tracks sits in between disk-writer and disk-reader,
delaying input to align with the disk-reader.
Furthermore tracks may be connected to different inputs,
even though those inputs are usually from the same hardware
device, capture latency of those ports can differ.
ldd may not print errors to stderr (Debian GLIBC 2.28-10 doesn't),
and hence the current check did nothing on debian and derivative
systems. While on other GNU/Linux distros (e.g. openSuSe),
other errors do show up (e.g. checking session-utils shell script
-> "not a dynamic executable")
This explicitly checks for missing libraries hopefully in a
distro independent way.
