v7.4.0

This main highlight of this version is property animation for avfilter!

Framework

• Added more constructors and assignment operators in C++ wrapper:
  • Mlt::Filter::Filter(Mlt::Filter*)
  • Mlt::Link::Link(Mlt::Link*)
  • Mlt::Link::Link(Mlt::Service&)
  • Mlt::Link::Link(Mlt::Link&)
  • Mlt::Link::Link(Mlt::Link const&)
  • Mlt::Link::operator=(Mlt::Link const&)
  • Mlt::Service::Service(Mlt::Service*)
• Fixed serialized animation in mlt_animation_serialize_cut_tf() and mlt_animation_serialize_cut() to include a trailing keyframe value.

Modules

• Added property animation for avfilter filters.
  This only works for numeric parameters, but many libavfilter options that have a type string are actually numeric in nature but accept a string
  expression.
• Added rotate property to avformat producer to override orientation.
• Changed jackrack module to silence false LADSPA plugin loading errors.
• Fixed a crash in the oldfilm filter when using preview scaling.
• Fixed timeremap link distorts audio when speed is zero.
• Added nautical mile and knot units of measure to the gpstext filter.
• Fixed full range color handling with embedded tractor (e.g. same track transition).
• Fixed device capture in avformat producer regression in version 7.2.0.
• Fixed a crash in the matte transition.