MLT-7 Task list

Summary

As place holder when switching to MLT-7. https://github.com/mltframework/mlt/issues/655
Version 7 migration: https://mltframework.org/docs/v7migration/ (https://github.com/mltframework/mlt_web/blob/master/guides/version7migration.md)

• pusher MTL7 branch: work/mlt7
• substituted mlt_rect by mlt_geometry. #580 (closed) and mlt issue 652 "Rendering crashes by an automask effect." It seems mlt_rect is buggy and will be substituted by mlt_geometry. Probably the feature will still be there but with another code base. See: mlt issue 655
• port mlt_geometry to mlt_animation class
• rename renamed functions, enums,…
• replace deprecated mlt_sample_calculator() with mlt_audio_calculate_frame_samples()
• replace deprecated motion_est module with avfilter.scdet.
• replace deprecated autotrack_rectangle with OpenCV tracker.
• replace deprecated region module with mask_start/end #82 (closed)
• replace deprecated mlt_image_rgb24a to *mlt_image_rgba
• replace deprecated mlt_image_rgb24 to mlt_image_rgb
• replace deprecated mlt_image_glsl to mlt_image_movit
• replace deprecated mlt_image_glsl_texture to mlt_image_opengl_texture
• remove deprecated mlt_image_opengl
• Since luma file generation was removed, see documentation for mlt_luma_map.
• mlt_events has changed majorly
• The build system has moved completely to CMake (more details here https://mltframework.org/docs/v7migration)