MLT Features

Framework

• Small, clean API with minimal dependencies (POSIX and C99)
• Modular design for the addition of new components
• Simple integration with other multimedia libraries and applications
• Supports the authoring and manipulation (ala DOM) of time-based media including playlists, multiple tracks, filters, and transitions
• Serialization and deserialization of authored projects
• Doxygen-based API Documentation
• High-level language bindings for C++, Java, Lua, Perl, PHP, Python, Ruby, and TCL

Modules

• Integration with many libraries for multimedia including FFmpeg, Jack, LADSPA, SoX, SRC (libsamplerate), frei0r, GTK+, Qt, and SDL
• Supports nearly all audio and video formats and codecs that FFmpeg does for both input and encoding - many with frame-accurate seeking
• Supports image sequences in any format that GDK and QImage supports including SVG and others with alpha channels
• Comprehensive and optimized suite of video and audio effects including image scaling, alpha-compositing, deinterlacing, masking, motion-tracking, audio mixing, audio gain, and wipe transitions - in addition to services provided through the above libraries
• A selection of output targets/profiles including HD
• An XML authoring schema designed to leverage the full capabilities of the system
• YAML-based metadata and schema for documentation of modules, their services, and parameters
• Live IP streaming output via FFmpeg
• SD PAL SDI output with embedded audio is available for Linux using DVEO/Linsys SDI Master hardware and MLT module now freely available with the MLT source code.
• SD and HD SDI input and output with or without embedded audio is available for Linux using BlueFish444 hardware for a reasonable fee by contacting Dan Dennedy via e-mail to dan -at- dennedy -dot- org

Protocol

• Comprehensive client/server protocol and API for playout scheduling
• MVCP, based upon work in dv1394d and designed based upon SGI MVCP

Applications

• A playout server with a well defined protocol
• Sample applications that demonstrate the client/server API
• A command line video editor and media player
• See the Kdenlive non-linear video editor for a good demonstration of the capabilities of MLT!