SdlSoundBuffer.hpp

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#ifndef SDLSOUNDBUFFER_HPP_
#define SDLSOUNDBUFFER_HPP_
 
//Sdl
#include <SDL_mixer.h>
 
//Interface
#include "ISoundBuffer.hpp"
 
#include <iostream>
#include <string>
 
class SdlSoundBuffer : public audio::ISoundBuffer {
 
    public:
        SdlSoundBuffer(std::string path) {
            _chunk = Mix_LoadWAV(path.c_str());
            if (!_chunk)
                std::cerr << "Failed to load sound: " << Mix_GetError() << std::endl;
        }
 
        ~SdlSoundBuffer() {
            if (_chunk)
                Mix_FreeChunk(_chunk);
        }
 
        bool isReady() const override { return _chunk != nullptr; }
 
        float getLength() const override {
            int frequency = 0;
            uint16_t format = 0;
            int channels = 0;
 
            if (!_chunk || !Mix_QuerySpec(&frequency, &format, &channels) || frequency == 0)
                return 0.f;
 
            const int bytes = (SDL_AUDIO_BITSIZE(format) / 8) * channels;
 
            if (bytes == 0)
                return 0.f;
            return static_cast<float>(_chunk->alen) / static_cast<float>(bytes * frequency);
        }
 
        Mix_Chunk *handle() const { return _chunk; }
 
    private:
        Mix_Chunk *_chunk = nullptr;
};
 
#endif /* !SDLSOUNDBUFFER_HPP_ */