get_*_static_pad () on GstBin throws a seg fault

Hi,

I've a pipeline like this - gstpipeline(filesrc->decodeBin2->gstbin(ffmpegcolorspace->capsfilter->appsink)).

The gstBin shown above has a ghost pad (mirroring sink pad of the converter). When I try to link the src pad of decodeBin2 (in the new-decoded-pad callback) with the sink ghostpad of the gstbin - the call gst_element_get_static_pad on the bin leads to a segmentation fault. Any idea why?

Here's the code I'm using -
   
Ghost pad creation -
ConvSinkPad = gst_element_get_static_pad(converter, "sink");
gst_element_add_pad(GST_ELEMENT(app_data->convBin), gst_ghost_pad_new("sink", ConvSinkPad));
gst_object_unref(ConvSinkPad);
   
Linking -
on_decodeBin_newpad(..., GstPad* pad)
{
....
...
        convBinSinkPad = gst_element_get_static_pad(app_data->convBin, "sink");
        gst_pad_link(pad, convBinSinkPad);
        gst_object_unref(convBinSinkPad);
}

PS - I tried debugging  but I don't get any logs even with level 5.

Thanks
Rohit

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Bummer!

I was using a deprecated signal - new-decoded-pad.

On a separate note, the documentation here needs an updated signal list - 

http://www.gstreamer.net/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-decodebin2.html

Thanks

Rohit

On Mon, Jan 17, 2011 at 10:12 AM, Rohit Atri <[hidden email]> wrote:

Hi,

I've a pipeline like this - gstpipeline(filesrc->decodeBin2->gstbin(ffmpegcolorspace->capsfilter->appsink)).

The gstBin shown above has a ghost pad (mirroring sink pad of the converter). When I try to link the src pad of decodeBin2 (in the new-decoded-pad callback) with the sink ghostpad of the gstbin - the call gst_element_get_static_pad on the bin leads to a segmentation fault. Any idea why?

Here's the code I'm using -
   
Ghost pad creation -
ConvSinkPad = gst_element_get_static_pad(converter, "sink");
gst_element_add_pad(GST_ELEMENT(app_data->convBin), gst_ghost_pad_new("sink", ConvSinkPad));
gst_object_unref(ConvSinkPad);
   
Linking -
on_decodeBin_newpad(..., GstPad* pad)
{
....
...
        convBinSinkPad = gst_element_get_static_pad(app_data->convBin, "sink");
        gst_pad_link(pad, convBinSinkPad);
        gst_object_unref(convBinSinkPad);
}

PS - I tried debugging  but I don't get any logs even with level 5.

Thanks
Rohit

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