<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hello I still have problems when using on-sending-rtcp/on-receiving signals (I would like to send RTCP packets of APP type). After having configured callbacks both for these signals (on the rtpsession object as mentioned by Sebastian) and for probes in rtcp pads, I have the following behavior on the talker side: in the two callbacks, I only have RR and SDES packets, and never SR packets, while I see SR packets with the probe callback, and whereas I see them in the listener side in the "on_receiving_rtcp" callback. Symmetrically, I have the same problem on the listener side. Another problem is that APP packets are not transmitted from the talker to the listener. Here is shortened the sequence of instructions called in the on-sending-rtcp callback function: - gst_rtcp_buffer_map(buffer, GST_MAP_READWRITE, &rtcp) - gst_rtcp_buffer_add_packet(&rtcp, GST_RTCP_TYPE_APP, &packet) - gst_rtcp_packet_app_set_subtype(&packet, subtype) - gst_rtcp_packet_app_set_ssrc(&packet, ssrc) - gst_rtcp_packet_app_set_name(&packet, name) - gst_rtcp_packet_app_set_data_length (&packet, len) - data = gst_rtcp_packet_app_get_data(&packet) - GST_WRITE_UINT32_BE(data, value) - ... - return TRUE Do I have to do something special at the end of the function, before the return instruction, for the packet to be taken into account? otherwise what could be the problem? Thank you for your help Philippe Lalevée <div class="moz-signature"> </div> </body> </html>