zmusic/source/decoder/mpg123_decoder.h
2020-02-08 10:42:37 +01:00

49 lines
1.2 KiB
C++

#ifndef MPG123_DECODER_H
#define MPG123_DECODER_H
#include "zmusic/sounddecoder.h"
#ifdef HAVE_MPG123
#ifdef _MSC_VER
#include <stddef.h>
typedef ptrdiff_t ssize_t;
#endif
#ifndef DYN_MPG123
#include "mpg123.h"
#else
#include "../thirdparty/mpg123.h"
#endif
struct MPG123Decoder : public SoundDecoder
{
virtual void getInfo(int* samplerate, ChannelConfig* chans, SampleType* type) override;
virtual size_t read(char* buffer, size_t bytes) override;
virtual bool seek(size_t ms_offset, bool ms, bool mayrestart) override;
virtual size_t getSampleOffset() override;
virtual size_t getSampleLength() override;
// Make non-copyable
MPG123Decoder() = default;
MPG123Decoder(const MPG123Decoder& rhs) = delete;
MPG123Decoder& operator=(const MPG123Decoder& rhs) = delete;
virtual ~MPG123Decoder();
protected:
virtual bool open(MusicIO::FileInterface *reader) override;
private:
mpg123_handle *MPG123 = nullptr;
bool Done = false;
MusicIO::FileInterface* Reader = nullptr;
static off_t file_lseek(void *handle, off_t offset, int whence);
static ssize_t file_read(void *handle, void *buffer, size_t bytes);
};
#endif
#endif /* MPG123_DECODER_H */