[Serdev] Posibles changes in nathelper to handle video

[Rodrigo Frez]

Correct me if im wrong : the only difference between a sip body of audio
an one of video is that the ?m=audio port? line, is in fact ?m=video port?,
so, Should be enough this change on ?extract_mediaport? function?????::


#######################
if (mediaport->len < 7 || (memcmp(mediaport->s, "audio", 5) != 0 && memcmp(mediaport->s,
"video", 5) != 0) || !isspace((int)mediaport->s[5])) {
       LOG(L_ERR, "ERROR: extract_mediaport: can't parse `m=' in SDP\n");
       return -1;
}  
#######################

	instead of:

#######################
if (mediaport->len < 7 || memcmp(mediaport->s, "audio", 5) != 0 || 
!isspace((int)mediaport->s[5])) {
       LOG(L_ERR, "ERROR: extract_mediaport: can't parse `m=' in SDP\n");
       return -1;
}  
#######################

For me it doesnt work... so in what other place the moduke is dependant
of audio like messages...