Basic OpenAL code to play a sound - macos

Question

I'm new using OpenAl library. I'm following the OpenAl programming guide but i can't find.
I have this code extracted from page 10 of the OpenAl programming guide but still have no sound. I use OSX Snow Leopard, i know OSX doesn't have ALUT defined.
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <OpenAL/al.h>
#include <OpenAL/alc.h>
using namespace std;
#define NUM_BUFFERS 3
#define BUFFER_SIZE 4096
int main(int argc, char **argv)
{
ALCdevice *dev;
ALCcontext *ctx;
struct stat statbuf;
Aluint buffer[NUM_BUFFERS];
Aluint source[NUM_SOURCES];
ALsizei size, freq;
ALenum format;
ALvoid *data;
// Initialization
dev = alcOpenDevice(NULL); // select the "preferred dev"
if (dev)
{
ctx = alcCreateContext(dev,NULL);
alcMakeContextCurrent(ctx);
}
// Check for EAX 2.0 support
// g_bEAX = alIsExtensionPresent("EAX2.0");
// Generate Buffers
alGetError(); // clear error code
alGenBuffers(NUM_BUFFERS, buffer);
if ((error = alGetError()) != AL_NO_ERROR)
{
DisplayALError("alGenBuffers :", error);
return 1;
}
// Load test.wav
loadWAVFile("sample.wav", &format, &data, &size, &freq, &loop);
if ((error = alGetError()) != AL_NO_ERROR)
{
DisplayALError("LoadWAVFile sample.wav : ", error);
alDeleteBuffers(NUM_BUFFERS, buffer);
return 1;
}
// Copy test.wav data into AL Buffer 0
alBufferData(buffer[0], format, data, size, freq);
if ((error = alGetError()) != AL_NO_ERROR)
{
DisplayALError("alBufferData buffer 0 : ", error);
alDeleteBuffers(NUM_BUFFERS, buffer);
return 1;
}
// Unload test.wav
unloadWAV(format, data, size, freq);
if ((error = alGetError()) != AL_NO_ERROR)
{
DisplayALError("UnloadWAV : ", error);
alDeleteBuffers(NUM_BUFFERS, buffer);
return 1;
}
// Generate Sources
alGenSources(1, source);
if ((error = alGetError()) != AL_NO_ERROR)
{
DisplayALError("alGenSources 1 : ", error);
return 1;
}
// Attach buffer 0 to source
alSourcei(source[0], AL_BUFFER, buffer[0]);
if ((error = alGetError()) != AL_NO_ERROR)
{
DisplayALError("alSourcei AL_BUFFER 0 : ", error);
}
// Exit
ctx = alcGetCurrentContext();
dev = alcGetContextsDevice(ctx);
alcMakeContextCurrent(NULL);
alcDestroyContext(ctx);
alcCloseDevice(dev);
return 0;
}
What things I missed to make this code work ???
What i'm doing wrong ???
Any advice could help, thanks.

Answer 1

You are not calling alSourcePlay(source[0]) to start the playback.