Is it in this way?<div><br></div><div><div><span class="Apple-tab-span" style="white-space:pre"> </span> GstElement* filesrc = gst_element_factory_make("filesrc", "filesrc");</div><div> <span class="Apple-tab-span" style="white-space:pre"> </span> g_object_set(G_OBJECT(filesrc), "location", cmd->filename, NULL);</div>
<div><br></div></div><div><div><span class="Apple-tab-span" style="white-space:pre"> </span>GstCaps *caps = gst_caps_from_string("audio/x-alaw, channels=1, rate=8000");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>g_assert(caps != NULL);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>decoder = gst_element_factory_make("alawdec", "decoder");</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>res = gst_element_link_filtered (filesrc, decoder, caps);</div>
<div><span class="Apple-tab-span" style="white-space:pre"> </span>g_assert(res == TRUE);</div><div> </div><div> </div><div>But it return:</div><div> gst_element_link_pads_filtered: assertion `GST_IS_BIN (parent)' failed</div>
</div><div><br></div><div><br></div><div>Thanks<br><br><div class="gmail_quote">2009/11/4 Kapil Agrawal <span dir="ltr"><<a href="mailto:kapil.agl@gmail.com">kapil.agl@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
You might want to try <br><pre>gst_element_link_filtered ()<br><br><br></pre>-kapil<br><br><div class="gmail_quote"><div><div></div><div class="h5">On Wed, Nov 4, 2009 at 2:57 PM, Freeman Zhang <span dir="ltr"><<a href="mailto:pcman.zhang@gmail.com" target="_blank">pcman.zhang@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex"><div><div></div><div class="h5"><div>HI ,</div><div><br></div><div>I'm using command line:</div>
gst-launch filesrc location=recordSample ! audio/x-alaw, channels=1, rate=8000 ! alawdec ! autoaudiosink<div>
to play a raw G711 file, it works.</div><div>
<br></div><div>But I don't know which GstElement shall I use with "audio/x-alaw, channels=1, rate=8000", is it "capsfiler"?</div><div><br></div><div>Please give me a hand.</div><div><br></div><div>
Thanks</div><div><br></div><font color="#888888"><div><br></div><div>Freeman </div>
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