DECODER__wmamedia.c File Reference

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Detailed Description

This module provides WMA decoder media data access handle.

REVISION

• 12/03/2003 M.GAO
  Initial creation.

Definition in file DECODER__wmamedia.c.

#include "../SYSTEM/sys_hardware.h"
#include "../MESSAGE/message.h"
#include "../codec/codec.h"
#include "../AUDIO/audio.h"
#include "../TISTD/wma_ti.h"
#include "../coder/coder.h"
#include "decoder.h"

Include dependency graph for DECODER__wmamedia.c:

Go to the source code of this file.

Functions
USHORT	DECODER__wmamedia (void)
	Function serves as the WMA decoder media access task handle.

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Function Documentation

USHORT DECODER__wmamedia (  void   )

Function serves as the WMA decoder media access task handle. Returns: Data length in words that are added into bitstream. Definition at line 41 of file DECODER__wmamedia.c. References Audio, Decoder, DECODER_getData(), st_AUDIO::fptr, and st_DECODER::inputBitstrm. { USHORT * pDst; USHORT strmLen; USHORT dataLen = 0; BITSTRM_pack(Decoder.inputBitstrm); strmLen = BITSTRM_numWordsFree(Decoder.inputBitstrm); if( (strmLen > READ_THRESHOLD_WMA) ) { // Fetch start offset. Audio.fptr = wmadecode.endOfDataFileAdr; pDst = (unsigned short *)BITSTRM_writePtr(Decoder.inputBitstrm); dataLen = DECODER_getData((int*)pDst, Audio.fptr, strmLen); Audio.fptr += dataLen; /* Add to decoder bitstream object. */ BITSTRM_add(Decoder.inputBitstrm, dataLen); } if(SEM_count(SEM_subcoder) == 0) SEM_post(SEM_subcoder); return dataLen; }

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