[gst-devel] debugging caps

[Martin Bisson]

I use GST_DEBUG( "The caps I want to output : %" GST_PTR_FORMAT, caps);

I got this from the documentation of gst_caps_to_string (
http://www.gstreamer.net/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#gst-caps-to-string)
that recommends using that.  It's shorter than having to free the memory
allocated by gst_caps_to_string.

Martin


On Thu, May 27, 2010 at 5:12 PM, Michael Joachimiak
<mjoachimiak at gmail.com>wrote:

> I read that GST_DEBUG_CAPS is deprecated - and it does not work.
> Is there any other way for debugging CAPS?
>
> I wrote some function for this purpose but what if have caps with other
> formats? It would be nice to have smth like GST_DEBUG_CAPS
>
> .................................................................................................
> void print_caps(Myfilter *filter)
> {
>  int width=0,height=0;
>     guint32 fourcc;
>     if (GST_IS_CAPS(GST_PAD_CAPS(filter->sinkpad_video)))
>     {
>     GstStructure *sinkcaps = gst_caps_get_structure
> (GST_PAD_CAPS(filter->sinkpad_video), 0);
>     gst_structure_get_int (sinkcaps, "width", &width);
>     gst_structure_get_int (sinkcaps, "height", &height);
>     gst_structure_get_fourcc (sinkcaps, "format", &fourcc);
>            switch (fourcc) {
>            case GST_MAKE_FOURCC ('I', '4', '2', '0'): GST_INFO("SINK CAPS:
> width %d, height: %d format: I420\n",width,height);
>                break;
>              case GST_MAKE_FOURCC ('I', 'Y', 'U', '1'):   GST_INFO("SINK
> CAPS: width %d, height: %d format: IYU1\n",width,height);
>                break;
>            default:
>                 GST_INFO("SINK CAPS: Incompatible format");
>              }
>     }
>     else
>         GST_WARNING("No caps on sink\n");
>     if (GST_IS_CAPS(GST_PAD_CAPS(filter->srcpad)))
>     {
>     GstStructure *srccaps = gst_caps_get_structure
> (GST_PAD_CAPS(filter->srcpad), 0);
>     gst_structure_get_int (srccaps, "width", &width);
>     gst_structure_get_int (srccaps, "height", &height);
>     gst_structure_get_fourcc (srccaps, "format", &fourcc);
>            switch (fourcc) {
>            case GST_MAKE_FOURCC ('I', '4', '2', '0'): GST_INFO(" SRC CAPS:
> width %d, height: %d format: I420\n",width,height);
>                break;
>              case GST_MAKE_FOURCC ('I', 'Y', 'U', '1'):   GST_INFO("SRC
> CAPS: width %d, height: %d format: IYU1\n",width,height);
>                break;
>            default:
>                 GST_INFO("SRC CAPS: Not compatible format");
>              }
>     }
>     else
>         GST_WARNING("No caps on source\n");
> }
> ....................................
>
> --
> Your Sincerely
> Michael Joachimiak
>
>
> ------------------------------------------------------------------------------
>
>
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