int initMovieSound(int f, ALenum format, int audioChannels, ALuint samplerate,
ALuint (*callback)(void *userdata, ALubyte *data, ALuint bytes)) {
if (! soundOK) return 0;
int retval;
int a = findEmptySoundSlot ();
freeSound (a);
soundCache[a].looping = false;
// audioChannel * sampleRate gives us a buffer of half a second. Not much, but it should be enough.
soundCache[a].stream = alureCreateStreamFromCallback(
callback,
&intpointers[a], format, samplerate,
audioChannels*samplerate, 0, NULL);
if (soundCache[a].stream != NULL) {
soundCache[a].fileLoaded = f;
soundCache[a].vol = defSoundVol;
retval = a;
} else {
debugOut("Failed to create stream from sound: %s\n",
alureGetErrorString());
warning (ERROR_SOUND_ODDNESS);
soundCache[a].stream = NULL;
soundCache[a].playing = false;
soundCache[a].playingOnSource = 0;
soundCache[a].fileLoaded = -1;
retval = -1;
}
//fprintf (stderr, "Stream %d created. Sample rate: %d Channels: %d\n", retval, samplerate, audioChannels);
return retval;
}
int main () {
if (!alureInitDevice(NULL, NULL)) {
std::fprintf(stderr, "Failed to open OpenAL device: %s\n", alureGetErrorString());
return 1;
}
alGenSources(1, &src);
if (alGetError() != AL_NO_ERROR) {
std::fprintf(stderr, "Failed to create OpenAL source!\n");
alureShutdownDevice();
return 1;
}
// Seeting Blip Buffer
synth.treble_eq( -18.0f );
synth.volume (0.80);
synth.output (&blipbuf);
// Init Blip Buffer with a buffer of 250ms (second paramter is time in ms)
if ( blipbuf.set_sample_rate( SR, 1000 / 4 ) ) {
std::fprintf(stderr, "Failed to create Blip Buffer! Our of Memory\n");
alureShutdownDevice();
return 1;
}
blipbuf.clock_rate( blipbuf.sample_rate() );
blipbuf.bass_freq(300); // Equalization like a TV speaker
stream = alureCreateStreamFromCallback (StreamCB, nullptr, AL_FORMAT_MONO16, SR, SR/2, 0, nullptr);
if(!stream) {
std::fprintf(stderr, "Error creating stream! %s\n", alureGetErrorString());
alDeleteSources(1, &src);
alureShutdownDevice();
return 1;
}
if (!alurePlaySourceStream(src, stream, 4, 0, eos_callback, NULL)) {
std::fprintf(stderr, "Failed to play stream: %s\n", alureGetErrorString());
isdone = 1;
}
alureUpdateInterval(0.005f); // Should be a independint thread playing the stream
while(!isdone) {
freq -= 1;
if (freq < 1) {
freq = 600;
}
alureSleep(0.02f);
}
alureStopSource(src, AL_FALSE);
alDeleteSources(1, &src);
alureDestroyStream(stream, 0, NULL);
alureShutdownDevice();
return 0;
}
