gzdoom/libraries/zmusic/zmusic/sounddecoder.h

#pragma once

#include "../../music_common/fileio.h"
#include <vector>

enum SampleType
{
    SampleType_UInt8,
    SampleType_Int16
};
enum ChannelConfig
{
    ChannelConfig_Mono,
    ChannelConfig_Stereo
};

struct SoundDecoder
{
	static SoundDecoder* CreateDecoder(MusicIO::FileInterface* reader);

    virtual void getInfo(int *samplerate, ChannelConfig *chans, SampleType *type) = 0;

    virtual size_t read(char *buffer, size_t bytes) = 0;
    virtual std::vector<uint8_t> readAll();
    virtual bool seek(size_t ms_offset, bool ms, bool mayrestart) = 0;
    virtual size_t getSampleOffset() = 0;
    virtual size_t getSampleLength() { return 0; }
	virtual bool open(MusicIO::FileInterface* reader) = 0;

    SoundDecoder() { }
    virtual ~SoundDecoder() { }

protected:
    friend class SoundRenderer;

    // Make non-copyable
    SoundDecoder(const SoundDecoder &rhs) = delete;
    SoundDecoder& operator=(const SoundDecoder &rhs) = delete;
};