Multimedia Renderer: Capabilities and Architecture

The multimedia rendering service, mm-renderer, allows multimedia applications to play audio and video content from files and devices.

The mm-renderer service provides mechanisms for:

specifying the set of media items to play
issuing basic playback commands
retrieving the current playback status
requesting notifications when the status changes
providing dynamic metadata (such as the current position in a track)

Supported media categories

A track is a single audio or video item. A playlist is a list of track URLs. This release of mm-renderer can play tracks but playlists aren't supported, unlike in previous releases. The media content can come from different local files or network-accessible streams. The source type is indicated in the input URL given to mm-renderer. For some URL types, you can specify options to further define the input. You can also treat a single track as a playlist, to play it repeatedly.

Note:

If you need to write applications that use playlists, subtitles (captioning), multi-track input files, and audio trick play, contact QNX Customer Support.

For a listing of all supported file containers and associated file extensions, audio and video formats and codecs, see the product release notes.