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GSequencer version 4.0.5 released

Item posted by Joël Krähemann <jkraehemann> on Tue 24 May 2022 05:54:00 PM UTC.

Today, we released the new GSequencer major release version 4.0.0.

I was working on the version 4.0.x branch for 6 months. We migrated to Gtk4 and libsoup-3.0.

The migration to Gtk4 was a big task. Implementing GtkOrientable was a thing and for sure the removal of GtkContainer. But with these changes we have a better libgsequencer.so, now. The introduction of AgsConnectableFlags was affecting many objects in following shared libraries: libags.so, libags_thread.so, libags_server.so and libags_audio.so.

The hamburger menu replaced the traditional menubar, but it is still available. The editor's machine selector widget has seen some changes. You enable or disable machines by a popover menu. The machines are in order of machine's vertical box.

The wave form editor clipboard was fixed.

uniform API for utility functions


For all audio processing functions we have a matching utility header. The audio processing functions are tied to a boxed type. This struct allows you to prefault memory and adjusting parameters.


Common fields for audio buffers are destination, destination_stride, source and source_stride or for presets buffer_length, format and samplerate. The struct's fields have getter/setter functions in general.

The format field was unified to use these formats:


The destination and source field usually have got the very same format. The functions take 1 argument, the box type struct as a pointer.


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