Hi Guys,
I've had a bit of a look at the examples and had a play around but haven't been able to get a solid audio system working in my game.
I'm interested to know if anyone has some base code or some well documented examples I could go through to get my system working fully?
Ideally it will load in .ogg files :)
Cheers,
Lucas
Could you share some details about your environment? (OS, JVM, etc)
Are you getting any errors from OpenAL? Setting the ALSOFT_LOGLEVEL environment variable to 3 might provide useful information. See env-vars.txt (https://github.com/kcat/openal-soft/blob/master/docs/env-vars.txt) for more details.
Quote from: spasi on July 17, 2016, 09:27:44
Could you share some details about your environment? (OS, JVM, etc)
Are you getting any errors from OpenAL? Setting the ALSOFT_LOGLEVEL environment variable to 3 might provide useful information. See env-vars.txt (https://github.com/kcat/openal-soft/blob/master/docs/env-vars.txt) for more details.
Hi there Spasi,
I've tried a few implementations, some worked some didn't, the main issue I was having was that I loaded the files in and it would cut out half way through a song... That was it... No errors, I presume something along the lines of an issue when I loaded the file into memory.
Really I'm just looking for advice before I start trying to implement this again.
EDIT: For the record: Windows, Java 8 (oracle), latest LWJGL release
Cheers.
Lucas
Could you provide a minimal code sample that reproduces the issue?
Hi Again, below is my code that was cutting off the sound file
SoundUtils.java (loads up the vorbris into memory)
public class SoundUtils {
static ByteBuffer readVorbis(String resource, int bufferSize, STBVorbisInfo info) {
ByteBuffer vorbis;
try {
vorbis = ioResourceToByteBuffer(resource, bufferSize);
} catch (IOException e) {
throw new RuntimeException(e);
}
IntBuffer error = BufferUtils.createIntBuffer(1);
long decoder = stb_vorbis_open_memory(vorbis, error, null);
if ( decoder == NULL )
throw new RuntimeException("Failed to open Ogg Vorbis file. Error: " + error.get(0));
stb_vorbis_get_info(decoder, info);
int channels = info.channels();
int lengthSamples = stb_vorbis_stream_length_in_samples(decoder);
ByteBuffer pcm = BufferUtils.createByteBuffer(lengthSamples * 2);
stb_vorbis_get_samples_short_interleaved(decoder, channels, pcm, lengthSamples);
stb_vorbis_close(decoder);
return pcm;
}
private static ByteBuffer resizeBuffer(ByteBuffer buffer, int newCapacity) {
ByteBuffer newBuffer = BufferUtils.createByteBuffer(newCapacity);
buffer.flip();
newBuffer.put(buffer);
return newBuffer;
}
public static ByteBuffer ioResourceToByteBuffer(String resource, int bufferSize) throws IOException {
ByteBuffer buffer;
File file = new File(resource);
if ( file.isFile() ) {
FileInputStream fis = new FileInputStream(file);
FileChannel fc = fis.getChannel();
buffer = BufferUtils.createByteBuffer((int)fc.size() + 1);
while ( fc.read(buffer) != -1 ) ;
fis.close();
fc.close();
} else {
buffer = createByteBuffer(bufferSize);
InputStream source = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
if ( source == null )
throw new FileNotFoundException(resource);
try {
ReadableByteChannel rbc = Channels.newChannel(source);
try {
while ( true ) {
int bytes = rbc.read(buffer);
if ( bytes == -1 )
break;
if ( buffer.remaining() == 0 )
buffer = resizeBuffer(buffer, buffer.capacity() * 2);
}
} finally {
rbc.close();
}
} finally {
source.close();
}
}
buffer.flip();
return buffer;
}
}
Then there is the actual sound object
public class AudioObject {
Vector3f position = new Vector3f(0, 0, 0);
float volume = 1f;
private boolean looping;
int source = 0;
int buffer = 0;
public AudioObject(String filename){ //loads file
loadAudio(filename);
setVolume(volume);
setPosition(position);
}
private void loadAudio(String filename){
STBVorbisInfo info = STBVorbisInfo.malloc();
ByteBuffer pcm = readVorbis(filename, 0, info);
// generate buffers and sources
buffer = alGenBuffers();
checkALError();
source = alGenSources();
checkALError();
//copy to buffer
alBufferData(buffer, AL_FORMAT_STEREO16, pcm, info.sample_rate());
checkALError();
info.free();
//set up source input
alSourcei(source, AL_BUFFER, buffer);
checkALError();
setPosition(position);
alSourcef(source, AL_REFERENCE_DISTANCE, 0);
alSourcef(source, AL_MAX_DISTANCE, 100);
//play source 0
alSourcePlay(source);
checkALError();
}
public void setVolume(float vol){
alSourcef(source, AL_GAIN, vol);
checkALError();
}
public void setPosition(Vector3f pos){
alSource3f(source, AL_POSITION, pos.getX(), pos.getY(), pos.getZ());
checkALError();
}
public void setLooping(boolean looping){
if(looping) {
alSourcei(source, AL_LOOPING, AL_TRUE);
}
else{
alSourcei(source, AL_LOOPING, AL_FALSE);
}
checkALError();
}
public void stop(){
alSourceStop(source);
//delete buffers and sources
alDeleteSources(source);
alDeleteBuffers(buffer);
}
}
Hopefully there is just something I missed amongst the loading and playing code. If not, any resources with some base code would be great to look over :)
Cheers.
Lucas
First of all, I don't think you're using the 3.0.0 release. There's no stb_vorbis_get_samples_short_interleaved that accepts a ByteBuffer in 3.0.0.
Your code works for me with the following changes:
1) Changed readVorbis to create a ShortBuffer:
ShortBuffer pcm = createShortBuffer(lengthSamples);
pcm.limit(stb_vorbis_get_samples_short_interleaved(decoder, channels, pcm) * channels);
2) Used a non-zero bufferSize in the readVorbis call.