[linux-dvb] Re: ac3 playback - please help !!!

[Martin Hoffmann <ma.hoff@bigfoot.com>]

Okay, thanks for the info ! It seems its useless to try with play-ac3...

i'll try the alsa drivers these days :-) with the ac3dec tool which was
reported to work with dvdplayer.

Anyone got it running with vdr ?

Martin.



----- Original Message -----
From: "Dr. Werner Fink" <werner@suse.de>
To: "Martin Hoffmann" <ma.hoff@bigfoot.com>
Sent: Friday, July 27, 2001 10:35 AM
Subject: Re: [linux-dvb] Re: ac3 playback - please help !!!


> On Thu, Jul 26, 2001 at 08:59:11PM +0200, Martin Hoffmann wrote:
> > No luck today :-)
> >
> > > o create a pipe device like "mkfifo /dev/ac3sound"
> > > o start play-ac3 and let it read from the pipedevice
> > "play-ac3/dev/ac3sound"
> > > o start vdr with vdr ... -a "tee >/dev/ac3sound"
> >
> > As soon as i start a playback via vdr, "play-ac3 /dev/ac3sound" quits
itself
> > with the error message "Error seeking in ac3 stream" :-(
>
> Within a pipe, even if a named FIFO, there is no way to seek
> in the data stream.  Seeking requires a real file on disk or
> a mem mapped area.  This also makes the usage of play-ac3
> within the pipe() of VDR impossible and besides this, it
> wold lead to a AC3 stream out of sync with the video.
>
> > Starting again just quits again !
> > No sound !
> > When i stop the recording the "tee > /dev/ac3sound" reports "tee: write
> > error"
>
> If the FIFO is closed tee can not write on.
>
>
>             Werner



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