Re: [Jack-Devel] Transcoding clients for jack ?

> > 3 years old and almost forgotten: `jack-stdout`
> > http://rg42.org/oss/jackstdout/
> >
> >   jack-stdout system:capture_1
> system:capture_2 \
> >   | oggenc -r -R 48000 -B 16 -C 2 - \
> >   > /tmp/my.ogg
> >
> > just pipe to sox, aacplusenc, lame, ffmpeg,..
> >
> > It's realtime-safe. However: if the internal
> ringbuffer (64k
> > stereo-samples - 256kBytes) and the unix-pipe (on
> Linux: 64kBytes) fill
> > up, samples will be dropped from the ringbuffer (and
> you'll get error
> > messages to stderr.) - The buffers are large enough
> for most tasks. The
> > CPU's the limit. YMMV.
> >
> > HTH,
> > robin
> >
> 
> 

works fine here. Just need to replace jack_client_new("") by jack_client_open(...) in the source code. Here is a quick patch:


===========
--- jack-stdout.c~      2011-03-29 12:05:49.945775001 +0200
+++ jack-stdout.c       2011-03-29 12:07:37.840775001 +0200
@@ -279,11 +279,12 @@
 {
        jack_client_t *client;
        jack_thread_info_t thread_info;
+       jack_status_t jstat;
 
        memset (&thread_info, 0, sizeof (thread_info));
        thread_info.rb_size = 16384 * 4; //< make this an option
 
-       if ((client = jack_client_new ("jstdout")) == 0) {
+       if ((client = jack_client_open ("jstdout", JackNoStartServer, &jstat)) == 0) {
                fprintf (stderr, "jack server not running?\n");
                exit (1);
        }
==================

Thanks for the tip, I did not know that tool :)

Cheers!
J.

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