mlt-7.0.1

[Bruce Dubbs]

New major version. Required for kdenlive.

Version 7.0.1

This version is just build fixes for the most immediate problems with the somewhat new but exclusive build system in v7.

• Fixed docker image not working.
• Fixed a system-installed build cannot finds its modules and data.
• Fixed the python installation path for binaries.
• Added support for the DESTDIR environment variable when creating melt symlink.
• Increased the build constant for the maximum size of a line of a properties file.
• Fixed the vid.stab metadata install path.

Version 7.0.0

This is a major new version that breaks API to add a major new feature to the framework: retiming. This is accomplished through new classes mlt_chain and mlt_link. And since we are breaking API we decided to clean house by removing deprecations and switching the build system over entirely to CMake. For more information see our [migration guide](​https://mltframework.org/docs/v7migration/).

Framework

• Added mlt_chain and Mlt::Chain classes.
• Added mlt_link and Mlt::Link classes.
• Added a link value to service type in the service metadata schema.
• Added a boolean animation parameter attribute to the service metadata schema.
• Added mlt_animation_shift_frame() and Mlt::Animation::shift_frames().
• Added mlt_animation_get_string().
• Fixed using a stale cached property animation string.
• Added mlt_image and Mlt::Image classes.
• Remove legacy "height + 1" workaround in image allocation.
• Fixed a crash on setting timewarp speed higher than 23x.
• Added mlt_audio_silence().
• Removed mlt_image_opengl.
• Replaced variadic arguments in mlt_events with new mlt_event_data APIs.
• Removed mlt_geometry APIs.
• Renamed mlt_image_rgb24a as mlt_image_rgba.
• Renamed mlt_image_rgb24 to mlt_image_rgb.
• Renamed mlt_image_glsl to mlt_image_movit.
• Renamed mlt_image_glsl_texture to mlt_image_opengl_texture.
• Removed virtual function mlt_frame::get_alpha_mask().
• Removed mlt_frame_get_alpha_mask().
• Removed deprecated functions:
  • mlt_sample_calculator
  • mlt_sample_calculator_to_now
  • mlt_channel_layout_name
  • mlt_channel_layout_id
  • mlt_channel_layout_channels
  • mlt_channel_layout_default
  • mlt_slices_init
  • mlt_slices_close
  • mlt_slices_run
  • mlt_playlist_move_region
  • Mlt::Playlist::move_region
• Fixed a rounding error calculating display aspect ratio in mlt_profile_from_producer().

Modules

• Added a timeremap link to the core module with animatable map property. (Speed can increase or decrease between keyframes including reverse.)
• Added chain and link XML elements to xml module.
• Added "meta.media.has_b_frames" property to avformat producer.
• Removed deprecated modules:
  • dv
  • gtk2 (not gdk)
  • kino
  • linsys
  • lumas
  • motion_est
  • swfdec
  • videostab
• Removed the following services:
  • data_feed filter
  • data_show filter
  • region filter and transition
  • sdl_image
• Converted filters to use new mlt_image class:
  • brightness
  • imageconver
  • mirror
  • spot_remover
• Deprecated the audiowave filter.
• Added the ability to build the jackrack module without JACK to get only LADSPA producers and filters.
• Deprecated start and end properties for the following filters:
  • brightness
  • panner
  • boxblur
  • wave
  • volume
• Removed deprecated font property from pango producer.
• Improved album art (attached pic) detection in avformat producer.
• Improved the resample filter to have less artifacts and use less memory.

Other

• CMake: nearly complete rewrite.
• Removed the old configure bash scripts and Makefiles.
• Added -chain and -link options to melt command line.