Provides functions related to the stream source for upper-layer applications.
After the SetSource function is called, the player invokes OnBufferAvailable to notify your application of the buffer memory block that can be filled with data. The player can invoke SetStreamCallback to register a callback for your application. For example, the GetBuffer callback obtains the address of the buffer block and sends the filled buffer memory block to the player. The buffer memory block is allocated and processed on the player. StreamSourceis available only for the media source of the SOURCE_TYPE_STREAM type. For details, see SourceType.