rmdts-detector.h

来自「SigmDesign SMP8634 media decode chip dev」· C头文件 代码 · 共 64 行

/*****************************************
 Copyright © 2001-2003  
 Sigma Designs, Inc. All Rights Reserved
 Proprietary and Confidential
 *****************************************/
/**
  @file   rmdts-detector.h
  @brief  
  Simple Interface to a DTS detector.

  @author Oriol Prieto Gasco
  @date   2005-03-22
*/

#ifndef __RMDTSDETECTOR_H__
#define __RMDTSDETECTOR_H__

#include "rmdetector-common.h"

typedef enum {
	DTS_SEEK_SYNC0 = 0,
	DTS_SEEK_SYNC1,
	DTS_SEEK_SYNC2,
 	DTS_SEEK_SYNC3,
 	DTS_SEEK_SYNC4,
	DTS_SKIP_NBLKS,
	DTS_SKIP_FSIZE,
	DTS_READ_AMODE,
	DTS_READ_SFREQ,
	DTS_READ_RATE

} DTSState;


class RMdtsDetector : public RMobject
{
 public:
	RMdtsDetector ();
	~RMdtsDetector();

	// Resets the detector to parse a new bitstream.
	void Reset(void);

	RMbool Detect(RMuint8 *pbuffer, RMuint32 size);

	RMstatus GetType(eAudioFormat_type *audioType);
	RMstatus GetParams(RMuint32 *frequency, RMuint32 *numberOfChannels, RMuint32 *bitrate);
	RMstatus GetAudioSpecificInfo(struct RM_Detection_Specific_Info *info);

 private:
	DTSState m_DTSState;
	RMuint8  m_DTSChanAMODE;
	RMuint8	 m_DTSFrequencyIndex;
	RMuint8  m_DTSBitrateIndex;

	RMuint32 m_frequency;
	RMuint32 m_bitrate;
	RMuint32 m_channels;
	RMbool m_isDTS;
};


#endif // __RMDTSDETECTOR_H__