<br><br><div class="gmail_quote">On Thu, Feb 11, 2010 at 12:47 PM, 4ernov <span dir="ltr"><<a href="mailto:4ernov@gmail.com">4ernov@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hello,<br>we develop an application receiving FM radio based on GStreamer. But I can't understand how to create a pipeline with v4lsrc or v4l2src only for radio signal (without video). I tried<br><br>gst-launch -vvv v4l2src device=/dev/radio0 ! decodebin ! pulsesink<br>
<br>in command line at first, but it fails:<br><br>(gst-launch-0.10:2489): GLib-WARNING **: g_set_prgname() called multiple times<br>Setting pipeline to PAUSED ...<br>ERROR: Pipeline doesn't want to pause.<br>ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Device '/dev/radio0' is not a capture device.<br>
Additional debug info:<br>v4l2_calls.c(504): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:<br>Capabilities: 0x50400<br>Setting pipeline to NULL ...<br>Freeing pipeline ...<br><br>Could anybody suggest me the right pipeline for FM radio signal processing or maybe the right parameters for v4lsrc or v4l2src sources?<br>
</blockquote><div><br></div><div>By looking at v4l2src output caps, it doesn't seem to support radio reception (there are only video formats). Maybe you could try adding support to it or writing a separate element for audio (in case the calls/interface is really different).</div>
<div><br></div><div>Btw, a friend of mine had developed an element for radio playback, it worked for his purposes. You can take a look at it: <a href="http://gforge.embedded.ufcg.edu.br/projects/gstradiobin/">http://gforge.embedded.ufcg.edu.br/projects/gstradiobin/</a></div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>Thank you very much in advance,<br>Alexey Chernov<br>
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