* Copyright © 2000-2006 Ingo Weinhold <ingo_weinhold@gmx.de>
* All rights reserved. Distributed under the terms of the MIT licensce.
*/
#ifndef AUDIO_READER_H
#define AUDIO_READER_H
#include <MediaDefs.h>
class AudioReader {
public:
AudioReader();
AudioReader(const media_format& format);
virtual ~AudioReader();
virtual status_t InitCheck() const;
void SetFormat(const media_format& format);
const media_format& Format() const;
virtual bigtime_t InitialLatency() const = 0;
virtual status_t Read(void* buffer, int64 pos, int64 frames) = 0;
void SetOutOffset(int64 offset);
int64 OutOffset() const;
int64 FrameForTime(bigtime_t time) const;
bigtime_t TimeForFrame(int64 frame) const;
protected:
void* ReadSilence(void* buffer, int64 frames) const;
void* SkipFrames(void* buffer, int64 frames) const;
void ReverseFrames(void* buffer,
int64 frames) const;
protected:
media_format fFormat;
int64 fOutOffset;
};
#endif
