/***********************************************************************
 * AUTHOR: Marcus Overhagen
 *   FILE: TrackReader.h
 *  DESCR: The undocumented BTrackReader class, 
 *         used by BSound and the GameSound classes
 ***********************************************************************/

#if !defined(_TRACK_READER_H_)
#define _TRACK_READER_H_

#include <MediaTrack.h>

class BMediaFile;

namespace BPrivate
{

class BTrackReader
{
public:
        BTrackReader(BMediaTrack *, media_raw_audio_format const &);
        BTrackReader(BFile *, media_raw_audio_format const &);
        ~BTrackReader();

        status_t        InitCheck();    
        int64           CountFrames(void);
        int32           FrameSize(void);
        status_t        ReadFrames(void *in_buffer, int32 frame_count);
        status_t        SeekToFrame(int64 *in_out_frame);

        BMediaTrack *                                   Track(void);
        const media_raw_audio_format &  Format(void) const;
        
private:
        void SetToTrack(BMediaTrack *track);

private:
        int32   fFrameSize;
        uint8 * fBuffer;
        int32   fBufferOffset;
        int32   fBufferUsedSize;
        BMediaFile *fMediaFile;
        BMediaTrack *fMediaTrack;
        media_raw_audio_format fFormat;
};

}; //namespace BPrivate

#endif