>From what I understand, we can do ac3 "like" encoders in linux for free, and they might actually make sounds come out on Commercial AC3 decoders, but unless we pay a license fee, we cannot actually call it AC3. This is why we now have the "liba52" decoder which just happens to work quite nicely on ac3 input.
I don't see why we could not also do a liba52 encoder. I think that if anyone started making a lot of money from liba52, then Dolby would probably start asking for some royalties. But there is no point in them making a fuss yet because there is no money involved. Cheers James > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Markus Plail > Sent: 17 February 2002 17:48 > To: [EMAIL PROTECTED] > Subject: Re: [Alsa-devel] dolby digital output > > > Hi there! > > On Sun, 17 Feb 2002 18:15:55 +0100 Andy Lo-A-Foe wrote: > > > On Sun, Feb 17, 2002 at 01:33:32AM -0500, Hod McWuff wrote: > > > > > I'd imagine the first step would be to add an ac3 encoder, and then > > > (possibly) the 2->5.1 channel demuxing for stereo streams. This would > > > result in the ability to mix dolby digital streams (DVD's) with more > > > mundane PCM streams, such as IM or telephony apps. > > > > None of the available open source software AC3 encoders are fast enough > > to do realtime 5.1 encoding I think. The main task would be to try and > > optimize this. Outputting compressed AC3 frames through alsa is probably > > the easiest part (see http://www.alsaplayer.org for ac3play) > > Are there really any AC3 ENcoders? I thought only quite expensive > (windows) software would be able to do that, because of Dolby's licensing. > If there are any what would those be? > > Regards > Markus Plail > > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
