WavWriter.hh

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#ifndef WAVWRITER_HH
#define WAVWRITER_HH
 
#include "File.hh"
#include "Mixer.hh"
#include "one_of.hh"
#include <cassert>
#include <cstdint>
#include <span>
 
namespace openmsx {
 
class Filename;
 
class WavWriter
{
public:
        [[nodiscard]] bool isEmpty() const { return bytes == 0; }
 
        [[nodiscard]] uint32_t getBytes() const { return bytes; }
 
        void flush();
 
protected:
        WavWriter(const Filename& filename,
                  unsigned channels, unsigned bits, unsigned frequency);
        ~WavWriter();
 
protected:
        File file;
        uint32_t bytes = 0;
};
 
class Wav8Writer : public WavWriter
{
public:
        Wav8Writer(const Filename& filename, unsigned channels, unsigned frequency)
                : WavWriter(filename, channels, 8, frequency) {}
 
        void write(std::span<const uint8_t> buffer);
};
 
class Wav16Writer : public WavWriter
{
public:
        Wav16Writer(const Filename& filename, unsigned channels, unsigned frequency)
                : WavWriter(filename, channels, 16, frequency) {}
 
        void write(std::span<const int16_t> buffer);
        void write(std::span<const float> buffer, float amp = 1.0f);
        void write(std::span<const StereoFloat> buffer, float ampLeft = 1.0f, float ampRight = 1.0f);
 
        void writeSilence(uint32_t samples);
};
 
} // namespace openmsx
 
#endif