Re: openal ac3 S/PDIF
Chris Robinson <[email protected]>
| Newsgroups | gmane.comp.lib.openal |
|---|---|
| Message-ID | <[email protected]> |
On Monday, May 24, 2010 1:33:04 am 傅晓晶 wrote: > Hi! > I'm writing here for some support, because I am confused about how to make > my openal configuration to play ac3 file for 5.1 surround effect.I only > use S/PDIF for output. thank you so much! Hi. You'll likely have to decode the AC3 into a PCM stream using some helper lib, and use the AL_EXT_MCFORMATS extension for one of the 51CHN formats (taking care of differences in channel order, if any). If that extension isn't available, you'll need to down-mix it to 16-bit stereo to play. OpenAL doesn't have any extensions to load or pass-through AC3, AFAIK. I'm not sure what licensing issues there may be with AC3 decoders, though. Someone with a bit more knowledge may have to speak up on that. _______________________________________________ Openal mailing list [email protected] http://opensource.creative.com/mailman/listinfo/openal