Design Of Codec Interface Based On Helix Client

With the fast development of codec algorithm and the media play engine, the handset multimedia feature extension become possible. At Helix Client multimedia player engine, the multimedia codec media processing module is the core module. Redesign the multimedia playback engine codec interface, implement the handset multimedia feature has a very important practical value.The thesis achieved codec functions by calling the function module interface. This codec application program interface is based on multimedia playback engine of the Helix Client. At multimedia playback engine of the Helix Client, by taking into account the codec module on the upper interface provided should be maintained, does not affect the use of the upper applications. Helix Client in accordance with the specific needs of the codec module packaging, the use of Object-Oriented design principles, abstract multi-media module common interface and platform-dependent module interface, mobile platform for multimedia applications in interface design.After testing, implement an efficient, transplantable and extensible codec interface, reaching the target.