GuiSoundOggPlayer.h

/****************************************************************************
 * libgui
 * Daryl Borth 2026
 * GuiSoundOggPlayer.h
 ***************************************************************************/
#pragma once
#include <stdint.h>
#include <tremor/ivorbisfile.h>
#include "../drivers/ThreadDriver.h"

class GuiSoundOggPlayer {
    public:
        GuiSoundOggPlayer();
        ~GuiSoundOggPlayer();

        bool play(const uint8_t *data, int32_t length, int time_pos, bool loop);
        void stop();
        void pause(bool pause);

        bool isPlaying() const {
            return threadRunning;
        }

        bool isPaused() const {
            return streamPaused;
        }

        int getSampleRate() const {
            return sampleRate;
        }

        int getChannels() const {
            return channels;
        }

        const uint8_t* getReadyBuffer(int32_t *outSize);
        void consumeBuffer();
 
    private:
        static void* threadEntry(void *arg);
        void threadLoop();
 
        static size_t readOgg(void *ptr, size_t size, size_t nmemb, void *datasource);
        static int seekOgg(void *datasource, ogg_int64_t offset, int whence);
        static int closeOgg(void *datasource);
        static long tellOgg(void *datasource);
 
        struct MemFile {
            const uint8_t *data;
            int32_t size;
            int32_t pos;
        };
 
        MemFile memFile;
        OggVorbis_File vf;
        bool vfOpen; 
        Thread decodeThread;
 
        volatile bool threadRunning;
        volatile bool streamPaused;
        volatile bool streamLoop;
 
        int sampleRate;
        int channels;
 
        static const int BUFFER_SIZE = 16384;
        uint8_t *pcmBuffer[2];
        int32_t pcmBufferSize[2];
        volatile bool bufferReady[2];
 
        volatile int decodeIndex;
        volatile int playIndex;
};