[gst-devel] multiple pads linking in a element

rmkart nathankarthik at gmail.com
Tue Aug 4 16:57:26 CEST 2009


Hi,
Thanks for the info.
I could make my pipeline with this.

RK

Miquel Àngel Farré wrote:
> 
> Hi,
> 
> You can get the pads using gst_element_get_pad() and after link pads using
> gst_pad_link():
> 
> GstElement *plugin_1  = gst_element_factory_make("plugin1", myplugin1);
> GstElement *plugin_2  = gst_element_factory_make("plugin2", myplugin2);
> 
> GstPad *plg1_src1 = gst_element_get_pad(plugin_1,"src_1"); //src1 from
> plugin1 ...
> GstPad *plg1_src2 = gst_element_get_pad(plugin_1,"src_2");
> GstPad *plg2_sink1 = gst_element_get_pad(plugin_2,"sink_1");
> GstPad *plg2_sink2 = gst_element_get_pad(plugin_2,"sink_2");
> 
> gst_pad_link(plg1_src1,plg2_sink1);
> gst_pad_link(plg1_src2,plg2_sink2);
> 
> 2009/8/4 rmkart <nathankarthik at gmail.com>
> 
>>
>> Hi,
>> I have created 2 element (plugin1, plugin2),  that has two sink pads and
>> two
>> source pads.
>>  SRC: 'src_1'
>>    Implementation:
>>    Pad Template: 'src'
>>  SINK: 'sink_1'
>>    Implementation:
>>      Has chainfunc(): gst_pullreader_rtcp_chain
>>    Pad Template: 'sink'
>>  SRC: 'src_2'
>>    Implementation:
>>    Pad Template: 'src'
>>  SINK: 'sink_2'
>>    Implementation:
>>      Has chainfunc(): gst_pullreader_rtp_chain
>>    Pad Template: 'sink'
>>
>> When I create my pipeline I will create by
>> gst_element_factory_make(plugin1);
>> gst_element_factory_make(plugin2);
>> gst_element_link(plugin1,plugin2);
>>
>> When I link the src_1 pad of plugin1 should get linked to sink_1 of
>> plugin2,
>> similarly for src_2 of plugin1 to sink_2 of plugin2.
>> How to do this in gstreamer, any ideas or pointers will be appreciated.
>>
>> Thanks,
>> Karthik
>> --
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>>
>>
>>
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