At Sun, 17 Feb 2002 18:47:35 +0100, Markus Plail wrote: > > 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?
ffmpeg can encode ac3, too. i once made a patch to allow 5.1 encoding. it seemed working, at least for tests. not sure how they handle this license problem, though.. Takashi _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
