#ifndef DECODER_H
#define DECODER_H

#include <boost/shared_ptr.hpp>

#include <string>

//! Interface for classes outputting raw audio.
class RawAudioSource {
	protected:
		int samplerate;
		int channels;

	public:
		typedef boost::shared_ptr<RawAudioSource> p;
		
		//! Virtual destructor.
		virtual ~RawAudioSource() {}
		
		//! Read into provided buffer.
		virtual std::size_t read(char* buf, std::size_t buf_size) = 0;

		//! Return sample rate.
		int get_samplerate() { return samplerate; }

		//! Return number of channels.
		int get_channels() { return channels; }
};

//! Decoder base class.
class Decoder : public RawAudioSource {
	public:
		typedef boost::shared_ptr<Decoder> p;
		
		//! Initialize decoders.
		static void init();
		
		//! Construct and return requested decoder.
		static p get(const std::string& name, const std::string& filename);
};

#endif