BMediaBufferDecoder

Derived from: BMediaDecoder

Declared in: be/media/MediaDecoder.h

Library: libmedia.so

Summary

The BMediaBufferDecoder class can be used to decode media data from a memory buffer. It implements the BMediaDecoder::GetNextChunk() function to fetch data from the memory buffer, and adds a new DecodeBuffer() function that decodes data from one buffer into another.

Hook Functions

GetNextChunk()

Constructor and Destructor

BMediaBufferDecoder()

	BMediaBufferDecoder() BMediaBufferDecoder(const media_format *inFormat,       const void *info = NULL, size_t infoSize = 0)

The constructor sets up the BMediaBufferDecoder. If you use the empty form of the constructor, you'll have to call SetTo() to establish the format to be decoded before calling Decode().

The second form accepts a media_format structure, inFormat, that indicates the type of media data that will be input into the decoder. info, if specified, will be filled out with text information about the node; you must specify a buffer infoSize bytes long.

The third form of the constructor accepts a media_codec_info structure, mci, that determines which codec should be used.

If you use either the media_format or media_codec_info form of the constructor, you must call InitCheck() to ensure that construction was successful before using any other functions in this class.

~BMediaBufferDecoder()

	virtual ~BMediaBufferDecoder()

Releases the decoder add-on being used by the BMediaBufferDecoder.