[gst-devel] caps dump causing memory exeption

[Stefan Kost]

Am 27.10.2010 04:06, schrieb Feng Ye:
> Hello,
> 
>  
> 
> I try to dump out the caps in the setcaps function like below and it gives fatal
> memory exception:


Would be nice to get a backtrace from gdb. If you can't get one. I'd suggest to
test the log function separately, e.g.

GstCaps *test_caps = gst_caps_from_string("video/x-raw-yuv,....");
GST_DEBUG_OBJECT (dec, "setcaps:     %" GST_PTR_FORMAT, test_caps);
gst_caps_unref(test_caps);

Stefan

> 
>  
> 
> static gboolean hantro_dec_setcaps (GstPad * pad, GstCaps * caps) {
> 
> …
> 
>     GST_DEBUG_OBJECT (dec, "setcaps:     %" GST_PTR_FORMAT, caps);
> 
>   Or:    GST_LOG ("setcaps:     %" GST_PTR_FORMAT, caps);
> 
>  
> 
> The caps itself is not null, and it contains valid info, like width and height,
> which I can use this to get:
> 
>   structure = gst_caps_get_structure (caps, 0);
> 
>   width  = gst_structure_get_value (structure, "width");
> 
>  
> 
> As long as I don’t dump my code runs fine. I am not sure what’s the reason.
> 
>  
> 
>  
> 
> Thanks,
> 
> Feng
> 
>  
> 
> 
> 
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