Re: how to use ladspa source plugins (like oscillators)?

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Another detail: when tried it with gst-launch printing out messages:

jakob@leptop:~$ gst-launch ladspa-sine-fcac ! autoaudiosink -v -m
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Got Message from element "autoaudiosink0" (state-changed): GstMessageState,
old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
pending-state=(GstState)GST_STATE_VOID_PENDING;
Got Message from element "ladspa-sine-fcac0" (state-changed):
GstMessageState, old-state=(GstState)GST_STATE_NULL,
new-state=(GstState)GST_STATE_READY,
pending-state=(GstState)GST_STATE_VOID_PENDING;
Got Message from element "pipeline0" (state-changed): GstMessageState,
old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY,
pending-state=(GstState)GST_STATE_PAUSED;
Got Message from element "ladspa-sine-fcac0" (state-changed):
GstMessageState, old-state=(GstState)GST_STATE_READY,
new-state=(GstState)GST_STATE_PAUSED,
pending-state=(GstState)GST_STATE_VOID_PENDING;

And after that it hangs.

On Mon, Sep 29, 2008 at 7:54 PM, Jakob Leben <[email protected]> wrote:

> If I simply connect ladspa-sine-fcac to autoaudiosink and play the pipeline
> there is no sound (I checked that the oscillator properties are freq:440,
> amp:1.0).
>
> Do i need another element? Looks like oscillator doesn't push buffers or is
> not pulled or something.
>
> Jakob Leben
>

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<div dir="ltr">Another detail: when tried it with gst-launch printing out messages:<br><br>jakob@leptop:~$ gst-launch ladspa-sine-fcac ! autoaudiosink -v -m<br>Setting pipeline to PAUSED ...<br>Pipeline is PREROLLING ...<br>
Got Message from element &quot;autoaudiosink0&quot; (state-changed): GstMessageState, old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY, pending-state=(GstState)GST_STATE_VOID_PENDING;<br>Got Message from element &quot;ladspa-sine-fcac0&quot; (state-changed): GstMessageState, old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY, pending-state=(GstState)GST_STATE_VOID_PENDING;<br>
Got Message from element &quot;pipeline0&quot; (state-changed): GstMessageState, old-state=(GstState)GST_STATE_NULL, new-state=(GstState)GST_STATE_READY, pending-state=(GstState)GST_STATE_PAUSED;<br>Got Message from element &quot;ladspa-sine-fcac0&quot; (state-changed): GstMessageState, old-state=(GstState)GST_STATE_READY, new-state=(GstState)GST_STATE_PAUSED, pending-state=(GstState)GST_STATE_VOID_PENDING;<br>
<br>And after that it hangs.<br><br><div class="gmail_quote">On Mon, Sep 29, 2008 at 7:54 PM, Jakob Leben <span dir="ltr">&lt;<a href="mailto:[email protected]">[email protected]</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div dir="ltr">If I simply connect ladspa-sine-fcac to autoaudiosink and play the pipeline there is no sound (I checked that the oscillator properties are freq:440, amp:1.0).<br><br>Do i need another element? Looks like oscillator doesn&#39;t push buffers or is not pulled or something.<br>

<br>Jakob Leben<br></div>
</blockquote></div><br></div>

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