Re: OpenAL and OGG
On 6/29/10, Development developm...@fornextsoft.com wrote:
Can open al not read ogg files? I'm attempting to load a short ogg clip and
I keep getting random errors.
getOpenALAudioData: ExtAudioFileOpenURL FAILED, Error = 1954115647
2010-06-29 15:13:53.965 MixPad[12402:207] error attaching audio to buffer:
a003
this is the file loading code, it is directly from an apple example
ALenum error = AL_NO_ERROR;
ALenum format;
ALsizei size;
ALsizei freq;
//NSBundle* bundle = [NSBundle mainBundle];
// get some audio data from a wave file
CFURLRef fileURL = (CFURLRef)[[NSURL fileURLWithPath:self.path] retain];
if (fileURL)
{
data = getOpenALAudioData(fileURL, size, format, freq);
CFRelease(fileURL);
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@error loading sound: %x\n, error);
exit(1);
}
// use the static buffer data API
alBufferDataStaticProc(self.alBufferID, format, data, size,
freq);
NSLog(@Format %i,format);
NSLog(@Data %i,sizeof(data));
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@error attaching audio to buffer: %x\n, error);
}
}
else
NSLog(@Could not find
file!\n);___
OpenAL is format agnostic. It doesn't know anything about file types.
It only accepts bytes of linear PCM.
Apple / Core Audio don't natively support Ogg.
Generally, if you want to use Ogg, you have to compile in the Ogg
Vorbis libraries from Xiph and use their APIs. ov_read() would be good
place to start looking.
-Eric
http://playcontrol.net/iphonegamebook
___
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OpenAL and OGG
Can open al not read ogg files? I'm attempting to load a short ogg clip and I
keep getting random errors.
getOpenALAudioData: ExtAudioFileOpenURL FAILED, Error = 1954115647
2010-06-29 15:13:53.965 MixPad[12402:207] error attaching audio to buffer: a003
this is the file loading code, it is directly from an apple example
ALenum error = AL_NO_ERROR;
ALenum format;
ALsizei size;
ALsizei freq;
//NSBundle* bundle = [NSBundle mainBundle];
// get some audio data from a wave file
CFURLRef fileURL = (CFURLRef)[[NSURL fileURLWithPath:self.path] retain];
if (fileURL)
{
data = getOpenALAudioData(fileURL, size, format, freq);
CFRelease(fileURL);
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@error loading sound: %x\n, error);
exit(1);
}
// use the static buffer data API
alBufferDataStaticProc(self.alBufferID, format, data, size,
freq);
NSLog(@Format %i,format);
NSLog(@Data %i,sizeof(data));
if((error = alGetError()) != AL_NO_ERROR) {
NSLog(@error attaching audio to buffer: %x\n, error);
}
}
else
NSLog(@Could not find
file!\n);___
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Re: OpenAL and OGG
On Jun 29, 2010, at 3:18 PM, Development wrote: Can open al not read ogg files? I'm attempting to load a short ogg clip and I keep getting random errors. OS X doesn’t ship with any codec for Ogg. It’s possible to install a 3rd party codec as a QuickTime or CoreAudio component, but I don’t know of any up-to-date ones. —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
