Exemple #1
0
static RtpProfile *make_profile(LinphoneCall *call, const SalMediaDescription *md, const SalStreamDescription *desc, int *used_pt){
	int bw;
	const MSList *elem;
	RtpProfile *prof=rtp_profile_new("Call profile");
	bool_t first=TRUE;
	int remote_bw=0;
	LinphoneCore *lc=call->core;
	int up_ptime=0;
	*used_pt=-1;
	
	for(elem=desc->payloads;elem!=NULL;elem=elem->next){
		PayloadType *pt=(PayloadType*)elem->data;
		int number;
		
		if ((pt->flags & PAYLOAD_TYPE_FLAG_CAN_SEND) && first) {
			if (desc->type==SalAudio){
				linphone_core_update_allocated_audio_bandwidth_in_call(call,pt);
				up_ptime=linphone_core_get_upload_ptime(lc);
			}
			*used_pt=payload_type_get_number(pt);
			first=FALSE;
		}
		if (desc->bandwidth>0) remote_bw=desc->bandwidth;
		else if (md->bandwidth>0) {
			/*case where b=AS is given globally, not per stream*/
			remote_bw=md->bandwidth;
			if (desc->type==SalVideo){
				remote_bw=get_video_bandwidth(remote_bw,call->audio_bw);
			}
		}
		
		if (desc->type==SalAudio){			
				bw=get_min_bandwidth(call->audio_bw,remote_bw);
		}else bw=get_min_bandwidth(get_video_bandwidth(linphone_core_get_upload_bandwidth (lc),call->audio_bw),remote_bw);
		if (bw>0) pt->normal_bitrate=bw*1000;
		else if (desc->type==SalAudio){
			pt->normal_bitrate=-1;
		}
		if (desc->ptime>0){
			up_ptime=desc->ptime;
		}
		if (up_ptime>0){
			char tmp[40];
			snprintf(tmp,sizeof(tmp),"ptime=%i",up_ptime);
			payload_type_append_send_fmtp(pt,tmp);
		}
		number=payload_type_get_number(pt);
		if (rtp_profile_get_payload(prof,number)!=NULL){
			ms_warning("A payload type with number %i already exists in profile !",number);
		}else
			rtp_profile_set_payload(prof,number,pt);
	}
	return prof;
}
Exemple #2
0
/* return TRUE if codec can be used with bandwidth, FALSE else*/
bool_t linphone_core_check_payload_type_usability(LinphoneCore *lc, PayloadType *pt)
{
	double codec_band;
	int allowed_bw,video_bw;
	bool_t ret=FALSE;

	linphone_core_update_allocated_audio_bandwidth(lc);
	allowed_bw=get_min_bandwidth(linphone_core_get_download_bandwidth(lc),
					linphone_core_get_upload_bandwidth(lc));
	if (allowed_bw==0) {
		allowed_bw=-1;
		video_bw=1500; /*around 1.5 Mbit/s*/
	}else
		video_bw=get_video_bandwidth(allowed_bw,lc->audio_bw);

	switch (pt->type){
		case PAYLOAD_AUDIO_CONTINUOUS:
		case PAYLOAD_AUDIO_PACKETIZED:
			codec_band=get_audio_payload_bandwidth(lc,pt);
			ret=bandwidth_is_greater(allowed_bw*1000,codec_band);
			/*hack to avoid using uwb codecs when having low bitrate and video*/
			if (bandwidth_is_greater(199,allowed_bw)){
				if (linphone_core_video_enabled(lc) && pt->clock_rate>16000){
					ret=FALSE;
				}
			}
			//ms_message("Payload %s: %g",pt->mime_type,codec_band);
			break;
		case PAYLOAD_VIDEO:
			if (video_bw>0){
				pt->normal_bitrate=video_bw*1000;
				ret=TRUE;
			}
			else ret=FALSE;
			break;
	}
	return ret;
}