Set "new-sample" signal in read_buffer callback
Set "new-sample" signal in read_buffer callback

Change-Id: Ib6c811b37e2fec974bde63c07adba9f353655abd

ESTOS/kms-core,ESTOS/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,KurentoLegacy/gst-kurento-plugins,Kurento/kms-core,KurentoLegacy/gst-kurento-plugins,TribeMedia/kms-core,KurentoLegacy/gst-kurento-plugins,KurentoLegacy/gst-kurento-plugins,shelsonjava/kms-core,Kurento/kms-core,ESTOS/kms-core,TribeMedia/kms-core,Kurento/kms-core,shelsonjava/kms-core,shelsonjava/kms-core,Kurento/kms-core,ESTOS/kms-core,TribeMedia/kms-core