[gst-devel] Sound recording

[René Stadler]

Am Samstag, den 30.12.2006, 16:52 +0100 schrieb Andreas Volz:
> Am Sat, 30 Dec 2006 16:28:05 +0100 schrieb René Stadler:
> 
> > Am Samstag, den 30.12.2006, 14:06 +0100 schrieb Andreas Volz:
> > > Am Fri, 29 Dec 2006 10:38:42 -0600 schrieb keith preston:
> > > 
> > > > >
> > > > >
> > > > >
> > > > > Is there an example code that shows how to record sound files?
> > > > 
> > > > 
> > > > gst-launch-0.10 alsasrc ! wavenc ! filesink location=temp.wav
> > > > 
> > > > Look at some of the gstreamer documentation for how to write the
> > > > app that makes this pipeline and suitably control this the
> > > > pipeline. The above command should record wavs.   Mp3 and ogg are
> > > > not much different.
> > > 
> > > Thanks, the command worked. But if I like to create a C application
> > > that realizes this pipe I get this warning at start time:
> > > 
> > > (ogg_player:19889): GStreamer-WARNING **: Trying to connect elements
> > > that don't share a common ancestor: alsasrc-source and wavenc-enc
> > > 
> > > Some code points:
> > > 
> > >   pipeline = gst_pipeline_new ("audio-player");
> > >   source = gst_element_factory_make ("alsasrc", "alsasrc-source");
> > >   enc = gst_element_factory_make ("wavenc", "wavenc-enc");
> > >   sink = gst_element_factory_make ("filesink", "filesink-sink");
> > >   ...
> > >   gst_element_link (source, enc);
> > >   gst_element_link (enc, sink);
> > > 
> > > So where is the problem?
> > > 
> > > regards
> > > Andreas
> > 
> > You probably forgot adding one of the elements to the pipeline.
> 
> I added it to the pipeline, but I added also an uninitialized element to
> the pipeline. After removing the element it works great. 
> 
> Thanks
> Andreas
> 

Out of curiosity, what do you mean by "*uninitialized* element"?

-- 
Regards,
  René Stadler