/*
- Copyright (C) 2007 Paul Davis
+ Copyright (C) 2007 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#ifndef __ardour_importable_source_h__
#define __ardour_importable_source_h__
-#include <sndfile.h>
-#include <pbd/failed_constructor.h>
-#include <ardour/types.h>
+#include "pbd/failed_constructor.h"
+#include "ardour/types.h"
namespace ARDOUR {
class ImportableSource {
public:
- ImportableSource (const std::string& path)
- : in (sf_open (path.c_str(), SFM_READ, &sf_info), sf_close)
- {
- if (!in) throw failed_constructor();
-
- }
-
+ ImportableSource () {}
virtual ~ImportableSource() {}
- virtual nframes_t read (Sample* buffer, nframes_t nframes) {
- nframes_t per_channel = nframes / sf_info.channels;
- per_channel = sf_readf_float (in.get(), buffer, per_channel);
- return per_channel * sf_info.channels;
- }
+ virtual framecnt_t read (Sample* buffer, framecnt_t nframes) = 0;
+ virtual float ratio() const { return 1.0f; }
+ virtual uint32_t channels() const = 0;
+ virtual framecnt_t length() const = 0;
+ virtual framecnt_t samplerate() const = 0;
+ virtual void seek (framepos_t pos) = 0;
+ virtual framepos_t natural_position() const = 0;
- virtual float ratio() const { return 1.0f; }
-
- uint channels() const { return sf_info.channels; }
-
- nframes_t length() const { return sf_info.frames; }
-
- nframes_t samplerate() const { return sf_info.samplerate; }
-
-protected:
- SF_INFO sf_info;
- boost::shared_ptr<SNDFILE> in;
+ virtual bool clamped_at_unity () const = 0;
};
}