v6.24.0

This version is mostly fixes plus a few new filters.

Framework

• Trigger a property-changed event on mlt_properties_pass_list.
• Fixed using a video transition with a video clip on an audio track.
• Reduce the amount of service caching to 2X #tracks to reduce memory usage.

Modules

• Added the pillar_echo filter to the plus module.
• Added a qtcrop filter to the qt module.
• Added html, resource, overflow-y, and _hide properties to the qtext filter for rich text.
• Added the filter choppy to the core module.
• Added slice threading to the brightness filter.
• Fixed compiling with OpenCV 4.
• Fixed the colors when using mlt_image_format=rgb24a with avformat consumer.
• Fixed using WebVfx in a Docker container.
• Fixed a possible crash in the timewarp producer on sources with non-integer frame rates.
• Fixed a regression in version 6.22 with multiple affine filters at the same time.
• Fixed possible abort or deadlock on recursive pthread mutexes in avformat producer.
• Fixed a crash in crop filter with large center_bias value when use_profile is 1.
• Fixed a white video frame appearing on threaded rendering in freeze filter.
• Fixed MLT XML DRD to permit empty playlists, which may occur on empty tracks in a multitrack.
• Fixed initializing QApplication in the qimage producer.
• Fixed interpolation when scaling with the affine rect and geomety properties.
• Fixed high memory usage with high factors of pitch shifting in the rbpitch filter.
• Fixed a crash on files with more than 32 streams in the avformat producer.

Other

• Fixed CMake build on MSYS2 and Windows Craft.
• Added the Python binding to the CMake build.
• Added the sdl (v1) module to the CMake build.
• Removed minrate and maxrate from the webm avformat consumer preset.