SpectMorph

New Features

• Implement pitch detection algorithm for instrument editor and smenc (#31).
• Support mp3 format for static plugins and builds with new libsndfile.

Instrument Updates

• Trumpet, French Horn: ping pong loop, better tuning
• Bass Trombone: ping pong loop, volume normalization, tuning
• Alto Saxophone: ping pong loop

Reduce Memory Usage after Unload

• Avoid global constructors / destructors.
• Use our own TextRenderer instead of cairo to be able to free font cache.
• Ship necessary fonts on macOS for TextRenderer.
• Free various tables and other bits of static data when unloading.

Fixes

• Don't crash on invalid utf8 during conversion (use replacement char).
• Fix crash caused by multiple threads modifying control events.
• Fix CLAP's get factory implementation (#30).
• Various ASAN / UBSAN fixes.
• Fix RTSAN issue: make FFT realtime safe.
• Avoid allocating memory in RT thread if events need to be sorted.
• Fix (unlikely) LineEdit crash.
• Validate input for smenc -m and other utils where an integer is expected (#31).
• Fix smooth tune performance for long input files.
• Build system updates.
• Convert manpages to markdown.
• Documentation updates.