ukaelAudio.c

//ukaelAudio program
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <portaudio.h>

#include "ukaelH/ukaelTypedefC.h"
#include "ukaelH/ukaelWaveC.h"
#include "ukaelH/ukaelToneC.h"

static const uint8_t PLAYAUDIO = 1;

int main( int argc, char *argv[] )  {
    ENTROPY^=rand();

    PaError err;
    PaStream* stream;
    AudioData sample[MAX_CHANNELS];

    WaveArg wargs = {
        .time = DEFAULT_AMPLITUDE,
        .freq = (Frac){127,1},
        .u8arg = {0,0,0,0},
        .u16arg = {0,0,0,0}
    };

    //allocate
    sample[0].size = BUFFER_SIZE;
    sampleAlloc(&sample[0]);

    // Generate the wave
    wargs.u8arg[0]=6;
    wargs.u8arg[1]=DEFAULT_AMPLITUDE;
    generateTone(&sample[0], 255, "testing", &wargs );


    AudioData PAudioData;
    PAudioData.size = BUFFER_SIZE;
    PAudioData.position = 0;
    sampleAlloc(&PAudioData);
    sampleCopy(&PAudioData,&sample[0]);

    audioDataToBin("audio.bin", &PAudioData);

    if(PLAYAUDIO && PAudioData.size){
        // Initialize PortAudio
        err = Pa_Initialize();
        if (err != paNoError) {
            printf("Failed to initialize PortAudio: %s\n", Pa_GetErrorText(err));
            return 1;
        }

        // Open the default output stream
        err = Pa_OpenDefaultStream(&stream, 0, 1, paUInt8, SAMPLE_RATE,
                                FRAMES_PER_BUFFER, audioCallback, &PAudioData);

        if (err != paNoError) {
            printf("Failed to open stream: %s\n", Pa_GetErrorText(err));
            Pa_Terminate();
            return 1;
        }

        // Start the stream
        err = Pa_StartStream(stream);
        if (err != paNoError) {
            printf("Failed to start stream: %s\n", Pa_GetErrorText(err));
            Pa_CloseStream(stream);
            Pa_Terminate();
            return 1;
        }

        // Wait for the stream to finish
        printf("Playing audio...\n");

        Pa_Sleep((PAudioData.size)/SAMPLE_RATE*1000);

        // Stop and close the stream
        err = Pa_StopStream(stream);
        if (err != paNoError) {
            printf("Failed to stop stream: %s\n", Pa_GetErrorText(err));
        }
        err = Pa_CloseStream(stream);
        if (err != paNoError) {
            printf("Failed to close stream:%s\n", Pa_GetErrorText(err));
        }

        // Terminate PortAudio
        Pa_Terminate();
    }

    sampleFree(&sample[0]);
    sampleFree(&PAudioData);

    return 0;
}