Replace the 10-band and 3-band equalizer audio filters by a custom curve UI controlling the GStreamer "N Band Equalizer" plugin
Submitted by Jeff F.T. @jeff
Description
Besides the 10-band and 3-band audio equalizer filters there also seems to be an audio effect available called "N Band Equalizer". The thing is, if you look at it in Pitivi the only UI you get is a slider for the "num-bands" property.
The problem is that this makes little sense if you can't control the loudness of each frequency band. Looking at http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-good-plugins/html/gst-plugins-good-plugins-equalizer-nbands.html this is not set through a property.
So you'd need to do two things:
- Some backend stuff to get the band values to work (see above), which would involve GES.
- Implement the infrastructure for easily creating custom effect UIs (bug #1550 (closed))
If we had a custom UI for this effect, where users could control a "histogram" of many sliders (probably laid out in vertical orientations instead of horizontal), the UI could have a combobox offering some presets for the "Precision": [3 bands, 10 bands, 16 bands, 32 bands, 64 bands]. If so, then we could just have one standard UI/effect and blacklist the 3-band and 10-band filters.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=741371