1) Shell VSTs were completely unrecognized...that is no longer the case
2) All VSTs will now ALWAYS be initialized and cleaned up from the main
GUI thread. I found that some Waves VSTs would freeze Audacity when
initialized in the audio thread and closed in the GUI thread.
3) While realtime previewing, it was possible that the wrong slave
could be used to process new blocks of audio.
4) I found that the Waves AUs don't crash on a real Mac (instead of a
virtual machine), so I removed the "black list" I'd put in just for
them. (Something to do with needing full 3D support I think.)
Anyway, #2 and #3 were quite intrusive, so as much RTP testing as possible
would be a good thing.
This bit the textual mode plain old text based buttons
and retains the bitmap buttons for graphical mode.
It also allowed me to remove the manual accelerator table
building (no access keys in GUI mode) which was a good
thing as I really didn't know if the was gonna work for
non-English keyboards anyway.
If you can believe it, this whole big mess is
just to get localized effect labels back into
the menus.
I sure wish I'd had a little bit more time to
finish up all of the effects. It sure would
be a lot cleaner (code wise).
All:
Export/Import now disabled if the Effect (family) doesn't support it
Options disabled if the Effect (family) doesn't support it
Standarized on "Latency compensation" instead of "Buffer delay compensation"
Correct loading/saving of factory default settings
Fixed "Mannage" to be "Manage"
Removed conditional code since we're keeping the transport buttons
Play bases state on actual playback status
Play no longer monkeys with selection
Play will now start from where it left off IF:
The user stops the playback via the Effect Stop button
If the user wants to restart from the beginning of the selection
then the user can click Rewind while stopped.
Rewind will not go past start of selection (sorry Steve ;-))
If Rewind is clicked while not playing, playback will next
start at beginning of selection.
Fast Forward will stop at end of selection
However, if FFwd is clicked while not playing, it will
put playback at the end of selection and the next time
the user clicks the Effect play button, playback will
continue from the end of selection to the end of track.
Deleting a preset now prompts user to confirm
Button faces should now look a little better
Bypass (should we rename that???) button now grays when disabled
Audio Units:
Corrected all user visible "AudioUnit" strings to be "Audio Unit"
Removed unneeded "Buffer Size" in settings dialog
Only uses latency if user said it was okay
Ladspa:
Added settings dialog to allow control of latency usage
Removed unused "user selectable" buffer size
Only use latency if user wants it
Refresh controls when presets are loaded
VST:
Removed unused "Rescan at startup" setting
Propogate parameter loads to slave effects
I've added some of the new plugin stuff to LV2, Nyquist, and
Vamp so that they play better in the new system. They no
longer get bunched in with the Audacity effects when sorting
or grouping the menus. They have not been fully converted
but they should be good for 2.1.0.
Nyquist plugins now include ";author" and ";copyright"
statements.
Added the 4 new Nyquist plugins to the Windows build.
Audiounits are still coming...had to push them to the back
burner to get this other stuff out of the way.
Scanning for new plugins has been improved so that newly
discovered ones will be shown to the user when Audacity starts.
Effects menu sorting has been fixed and improved.
Disabling effect types in Preferences works again and you
no longer have to restart Audacity for them the change to work.
Effect usage in chains works again.
Plugin registration dialog code simplified a bit.
Group names in the pluginregistry are now base64 encoded. I
never really thought about it, but wxFileConfig group names
are case insensitive and since I was using the group name as
the plugin ID, I ran into a conflict on Linux where there
were two plugins with the same name, just different case. (And
they were different plugins.) Hoping all of this will change
when/if the config file gets converted to XML. (wx3 if finally
including XML support)
A fair amount of cleanup of this new code has been done and
will continue as more stuff is converted.
The big thing is the common efffects UI. Right now Ladspa and VST
have been converted to use it and Audiounits will be next. It makes
everything nice and consistent while reducing the clutter in the
dialog.
Other goodies are:
Ladspa effects now show output controls when supplied by the effect
Ladspa effects now work fine as Analyze type effects
Ladspa now has user presets
VST effects dialog is now less cluttered...leaving more room for the effect
Ladspa and VST effects now share a common UI
Ladspa and VST effects are now usable in chains
Ladspa and VST effects now handle user presets the same way
Currently active effects settings automatically saved and reloaded
Can now do numeric range checking on input fields.
And, as always, plenty of critter squashing.
Main effect host processing extended to support generate
effects and sync locked tracks.
Ladspa updated to utilize new generate support.
I'll address Analyze plugins when I get to the SBSMS ones.
Shared and private config changes are flushed immediately.
Cancel button restored to VST and Ladspa dialogs. This
also restores the ESC button functionality.
Current parameters saved with Apply or Ok clicked...not
when Audacity ends.
Ladspa and VST effects with that reports no input and
no outputs are now ignored.
Ladspa effects providing a latency value is now handled.
Ladspa generator effects now use the TimeTextCtrl for
specifying duration.
This gets meter type VST effects working again by extending the
The master now maintains his own internal buffers and sums (mixes) all
playing tracks into those buffers. The buffers are then fed into the
VST effect that is presented to the user. This allows the effect to
provide feedback to the user if it support it. Such effects may display
meters or clipping indicators.
Several issues with treading have also been corrected (hopefully ;-)).
These showed up mostly on Linux, but could have happened on the others
as well.
The realtime support is no longer limited to 2 channels per logical
track. Once support for more channels is added, this should be ready
for it.
The rack dialog can now be toggled via the edit toolbar button. It
doesn't stay pressed because the closing of the dialog would have to
be communicated back to the toolbar.
As the rack is updated with new or removed effects or active state
changed, all effects in the active list were shutdown and all effects
in the updated list were initialized. This now shuts down only the
effects no longer in the list and initializes only new ones.
The rack now uses wxBitmapButton instead of Audacity's AButton. The
AButton has a timing issue that prevents it from being deleted while
processing the click event. I looked into it, but gave up and switched
to the wxBitmapButton. Unfortunately, there's a problem with the
wxBitmapButton as well...at least on my setup here. Either the bitmaps
are being scaled or antialiased. Will have to get feedback on this.
I finally figured out why some VSTs didn't seem to do anything in
realtime, at least in my case anyway. I've installed a lot of demo
VSTs and while they work in "batch/offline" mode, some of them will
not work in realtime since vendors tend to remove automation as one
of the demo limitations.
More changes coming shortly...
This changes the realtime preview from using 1 effect for all tracks
to an effect per track (logical track). This should clear up the
bad audio when more than one track (or a stereo track) is present.
An unfortunate side effect is that meter effects no longer work since
the one presented to the user is not the one doing the actual work.
Suggestions on how to remedy this are welcome.
I've made it where you can enable and disable via experimentals:
EXPERIMENTAL_REALTIME_EFFECTS
EXPERIMENTAL_EFFECTS_RACK
You will notice that, as of now, the only effects currently set up for
realtime are VSTs. Now that this is in, I will start converting the
rest.
As I start to convert the effects, the astute of you may notice that
they no longer directly access tracks or any "internal" Audacity
objects. This isolates the effects from changes in Audacity and makes
it much easier to add new ones.
Anyway, all 3 platforms can now display VST effects in graphical mode.
Yes, that means Linux too. There are quite a few VSTs for Linux if
you search for them.
The so-called "rack" definitely needs some discussion, work, and attention
from someone much better at graphics than me. I'm not really sure it should
stay in as-is. I'd originally planned for it to be simply a utility window
where you can store your (preconfigured) favorite effects. It should probably
revert back to that idea.
You may notice that this DOES include the API work I did. The realtime effects
were too tied to it and I didn't want to redo the whole thing. As I mentioned
elsewhere, the API stuff may or may not be very future proof.
So, let the critter complaints commence. I absolute KNOW there will be some.
(I know I'll be hearing from the Linux peeps pretty darn quickly. ;-))
