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#ifndef BITSTREAM_H 
#define BITSTREAM_H 
 
#include "args.h" 
 
// Header mask definition 
#define HDRCMPMASK 0xfffffd00 
 
// Maximum frame size 
#define MAXFRAMESIZE 1792 
 
extern int head_read(unsigned char *hbuf,unsigned long *newhead); 
extern int head_check(unsigned long newhead);  
extern bool Init_Stream(); 
extern bool Done_Stream(); 
  // Reads a frame 
  extern int    ReadFrame(); 
  // Steps one frame back 
  extern int    BackFrame(int num); 
  // Returns the maximum count of the frames in stream 
  extern unsigned long GetMaxFrames(); 
  // Returns the minimum count of the frames in stream 
  extern unsigned long GetMinFrames(); 
  // Calculate framesize of the current frame  
  extern unsigned long CalcFramesize(); 
  // Returns the bitrate of the stream 
  extern unsigned long GetBitrate(); 
  // Returns the samplerate of the stream 
  extern unsigned long GetSampleRate(); 
  // Returns the milli seconds one frame has 
  extern real Frame2ms(); 
  // Returns the total milli seconds of the stream  
  extern real Totalms(); 
  // Returns the current Position in ms 
  extern unsigned long Currentms(); 
  // Seek to stream position in frames 
  extern bool Seek_Stream(unsigned long Position); 
  // Gets the stream bits for the decoder 
  extern unsigned long  __inline Get1Bit(void); 
  extern unsigned long __inline GetBits(int); 
  extern unsigned long __inline GetBitsFast(int); 
  // Sets the bit pointer 
  extern void SetPointer(long); 
 // Resets bitstream potision to zero  
  extern void Reset_Stream(); 
 
extern bool StreamInit; 
 
extern unsigned long MaxFrames, MinFrames; 
 
const long FreqIndex[7]={44100,48000,32000,22050,24000,16000,11025}; 
 
#endif