working with typefind

[Tim Müller]

On Wed, 2014-04-02 at 14:35 +0530, Vijay Vikram wrote:

Hi,

> Need some help with typefind element.
>  
> I am currently working with gstreamer 1.2.3 and I want to disable flac
> file support for some reason so that playbin can not pick
> flacparse/flacdec.
>  
> I believe this has some thing to typefind.
>  
> Can you please sugegst how can I do that?

The easiest way might be to do something like:

 GstPluginFeature *feature;
 GstRegistry *registry;

 registry = gst_registry_get();
 feature = gst_registry_lookup_feature (registry, "flacparse");
 if (feature != NULL) {
   gst_plugin_feature_set_rank (feature, GST_RANK_NONE);
   gst_object_unref (feature);
 }
 feature = gst_registry_lookup_feature (registry, "flacdec");
 if (feature != NULL) {
   gst_plugin_feature_set_rank (feature, GST_RANK_NONE);
   gst_object_unref (feature);
 }
 feature = gst_registry_lookup_feature (registry, "avdec_flac");
 if (feature != NULL) {
   gst_plugin_feature_set_rank (feature, GST_RANK_NONE);
   gst_object_unref (feature);
 }

The typefinder will still detect the file as flac then, but it won't
plug any of the above plugins any more because they have no rank.

Cheers
 -Tim

-- 
Tim Müller, Centricular Ltd - http://www.centricular.com