Java Mobile Media API

The Mobile Media API (MMAPI) is a specification for Java ME platform devices like mobile phones, enabling playback, recording, and capture of audio, video, and still images. Developed under JSR 135, it provides core functionality through classes in the `javax.microedition.media` package: Manager, Player, PlayerListener, and Control.

The Manager class's primary method is `createPlayer`, which takes a URI or InputStream and an optional MIME type. Common URI protocols include `file:`, `resource:`, `http:`, `rtsp:`, and `capture:` for recording. The createPlayer method returns a Player instance with methods to start, stop, and control media playback.

Players support the `PlayerListener` interface for event handling (e.g., clip start/stop). Controls provide additional functionalities, though their availability depends on the implementation. Some standard controls are defined in JSR 135, while others may be added in supplements like JSR 234.

The Player lifecycle involves discrete states, and implementations vary across devices in supported URIs, MIME types, and controls due to differences in device capabilities. Performance can also differ, with methods like `realize` and `prefetch` helping optimize media handling. Symbian OS offers a robust implementation but is dependent on hardware multimedia support.

Consistency across implementations is ensured by the Java Technology Compatibility Kit (TCK), which tests supported features but not all optional functionalities.