On Sun, Mar 30, 2003 at 03:11:00AM +0200, Benny Sjostrand wrote: > Seems like a user application problem to me. The cs46xx driver just > support a limited set of period-size configurations, that's a limitation > in the HW. Then it's up to the application to handle it (I guess) > I've managed to make AC3 and DTS through SPDIF work witth OGLE and Xine, > I dont see any reason why it would'nt work with any other application, > at least you should get further than: "S/P-DIF: Period size not > available: Invalid argument" then when you've managed to open the device > and write data to it maybe there will apear other unknown problems ...
Well, I think there are two problem, the first one is the limited set of period-size configurations which the bitstream plugin should take care of, but the real reason I repost what Dr. Werner Fink wrote in the [EMAIL PROTECTED] mailing list was because he spoke exactly about a problem we are a lots to have with the cs46xx driver :-( Also found relative to DVB (AC3overDVB from Stefan Huelswitt, http://www.muempf.de/down/vdr-1.1.26-AC3overDVB-0.1.4.diff.gz ) which contains in the README.AC3overDVB: If your receiver doesn't detect the encapsulated stream (at the beginning of replay in general) you will hear the digital data played as PCM data. It's a spiky noise. Don't turn up the volume too much, or the speakers may be damaged. You have been warned! And afterthat I post the answer from Dr. Werner Fink: As long as the hardware on the DVB cards are not able to put the 16bit none audio PCM data stream into a 32bit none audio S/P-DIF transport stream all receivers which uses the bit flags of the S/P-DIF transport stream for identifying none audio loose. All S/P-DIF data get from the DVB card to not have the none audio bit set. AFAIK this is a hardware bug (or better this is the information I've got from TT) ... And what I think is that we have exactly the same problem with the cs46xx driver: I couldn't have a real 5.1 with any tools under linux and cs46xx (ac3dec,ac3play,mplayer,xine), in fact I couldn't alsa hear the sound from the CD using the SPDIF... I think we need a fix for some receiver that don't detect the encapsulated stream... Thank you very much, Grégoire ________________________________________________________________ http://ulima.unil.ch/greg ICQ:16624071 mailto:[EMAIL PROTECTED] ------------------------------------------------------- This SF.net email is sponsored by: The Definitive IT and Networking Event. Be There! NetWorld+Interop Las Vegas 2003 -- Register today! http://ads.sourceforge.net/cgi-bin/redirect.pl?keyn0001en _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
