Multichanel Vorbis support

[Asmodeus]

Hi :D
I know that I'm boring, but I stil waiting for proper multichanel vorbis encoder. The one already available isn't working, what I have report.
But that's not all. If you already solve egzisting bug, please create posibility of custom chanel orger adjust. OGG Vorbis specification has no chanel order set (or I should say the one that egzist is created "blind eyes" and does not corespond to regular specifications). Today we have FL,C,FR,RL,RR,LFE and all multichanel formats (AC3, WMA, AAC) use (AFAIK) FL,FR,C,LFE,RL,RR. So streams created by oggenc or for instance foobar disk writer, are unproper played by corevorbis (I don't mention oggDS while multichanel support isn't solved). BeSweet create proper chanel order.
Thx and I wish you good work

[Spoon]

Re: Multichanel Vorbis support

>FL,C,FR,RL,RR,LFE and all multichanel formats (AC3, WMA, AAC) use (AFAIK) FL,FR,C,LFE,RL,RR.

so which is correct? if going to wave?

[Asmodeus]

Re: Multichanel Vorbis support

>FL,C,FR,RL,RR,LFE and all multichanel formats (AC3, WMA, AAC) use (AFAIK) FL,FR,C,LFE,RL,RR.

so which is correct? if going to wave?

If you transcode from AC3 to wave chanell order is the same (for both AC3 and 6ch PCM WAVE) FL,FR,C,LFE,RL,RR. But to get propertly played (egz. by CoreVorbis) vorbis file, chanel order must be FL,C,FR,RL,RR,LFE. So there must be a chanell switch durning transcode.

[Spoon]

Re: Multichanel Vorbis support

Are you 100% sure that this is the standard for Ogg, does the plug in for Winamp do the same? (ie play correctly if it is in that order)?

[Asmodeus]

Re: Multichanel Vorbis support

Are you 100% sure that this is the standard for Ogg

Yes 100%. All my tests provide this type of sets, and all threads I've found on doom9 are reporting the same. As for standard - there is no standard for 6ch Vorbis. This chanell order was (IMHO) for beta test since few years, and till now it's standing with no standard relase.

does the plug in for Winamp do the same? (ie play correctly if it is in that order)?

I've never gain nothing more that weird stereo from winamp plugin, and foobar plays it as ProLogic. I have SBLive! 5.1 and real 6ch I can get only with CoreVorbis filter (as majority). Some people uses oggDS with trombeworks (AFAIR) patch, but I've never try this.

If it's possible try to include setable two types of order (as it is in winamp plugin). Even there you can choice betwen "corect(FL,C,FR,RL,RR,LFE)" and "broken(FL,FR,C,LFE,RL,RR)"

[Spoon]

Re: Multichanel Vorbis support

Thanks

[Asmodeus]

Re: Multichanel Vorbis support

If you need beta-tester, well ....

[Spoon]

Re: Multichanel Vorbis support

As spam brought this thread back to life, the current ogg beta has correct mulichannel decoding / encoding.