Hello to all, I've read in a lot of mails about ac3dec to stream ac3 data from vdr to the DSP device to get the S/PDIF output working.
I have tested this with several versions of ac3dec and a52dec written by Aaron. But in every case i get only one result out of my SBLive!/DXR3 card. It's Dolby ProLogic. None of the tests resulted in a Dolby Digital signal. If i use play-ac3 (included in the emu10k1 package) to stream the data from vdr to DSP i get a wonderfull DD 5.1 signal out of the S/PDIF of my SBLive!/DXR3 card. In some of these mails i've also read that ac3dec ac3play or play-ac3 do the same. But i think this could not be correct. Now my question: What do I make false with ac3dec? Is there a special command/option to call ac3dec / a52dec to use streaming only without any downmixing or something else? BTW: I've also read in some mails about problems using play-ac3 in combination with vdr. I had the same problems, but i found a patched version in the WEB which is able to play ac3 streams from STDIN to DSP, and it works really good with my both cards. I used several kinds of starting vdr with play-ac3 and every result was the same. (directly, with FIFO device, with a shellscript...) Simply use ./vdr -a 'play-ac3 -' and it works. The only bug in this version is that it never exit's when the ac3 stream is broken. When this occurs vdr starts a new (second, third...) play-ac3 process without exiting the older one. The result is a unavailable DSP device, the older play-ac3 processes become zombie's and at least you must exit/kill vdr to release them. This effect is reproducable if you replay a DVD via vdr and you jump from one chapter to another and so on. I had contact with Bert de Bruijn who has written this patch, and i told him about this problem, but he said he is unable to correct this because of very less knowledge about C-programming. Parhaps somebody who reads this mail is able to correct this problem in the patch. Here now the URL: http://bert.debruijn.be/linuxstuff.html http://bert.debruijn.be/linux-stuff/play-ac3.c http://bert.debruijn.be/linux-stuff/play-ac3.patch-v1.2 Regards Guenter Niedermeier -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
