Hi, I need to change some code of Asterisk. I want that change to make possible a preliminary estimation of latency when Asterisk receives an INVITE with SDP description to iniciate a session.<br><br>This estimation will be used to choose the most appropiated parameters for a determinated video codec ( i suppose that i know what client-program is being used so I know what codecs are supported). These parameters could be, for example, the resolution or the frame rate of video codec.<br>
<br>Once the new parameters are been selected, the SDP description must be modified properly.<br>Finally, an INVITE with the modified SDP description will be sent to the destination,<br><br><br>For simplicity:<br><br>I know what client is used so I know what videocodecs are resolution supported. In addition, i suppose that latency can be measure using "pings". <br clear="all">
<br>So, any ideas to face this issue?<br><br>Thanks,<br>-- <br>Juan I. Jiménez Anguiano<br>
Telecommunication Engineer.<br>·························································································<br>Dep. Sistemas y Automática<br>Área de Telemática<br>Escuela Superior de Ingenieros (Universidad de Sevilla)<br>
·························································································<br>C/ Camino de los Descubrimientos, s/n; 41092-Sevilla (SPAIN)<br>e-mail: <a href="mailto:juanjimenez@trajano.us.es" target="_blank">juanjimenez@trajano.us.es</a><br>