bool_t linphone_core_is_payload_type_usable_for_bandwidth(LinphoneCore *lc, PayloadType *pt, int bandwidth_limit)
{
double codec_band;
bool_t ret=FALSE;
switch (pt->type){
case PAYLOAD_AUDIO_CONTINUOUS:
case PAYLOAD_AUDIO_PACKETIZED:
codec_band=get_audio_payload_bandwidth(lc,pt);
ret=bandwidth_is_greater(bandwidth_limit*1000,codec_band);
/*hack to avoid using uwb codecs when having low bitrate and video*/
if (bandwidth_is_greater(199,bandwidth_limit)){
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 (bandwidth_limit!=0) {/* infinite (-1) or strictly positive*/
ret=TRUE;
}
else ret=FALSE;
break;
}
return ret;
}
void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc){
const MSList *elem;
PayloadType *max=NULL;
for(elem=linphone_core_get_audio_codecs(lc);elem!=NULL;elem=elem->next){
PayloadType *pt=(PayloadType*)elem->data;
if (payload_type_enabled(pt)){
int pt_bitrate=get_codec_bitrate(lc,pt);
if (max==NULL) max=pt;
else if (max->normal_bitrate<pt_bitrate){
max=pt;
}
}
}
if (max) {
lc->audio_bw=(int)(get_audio_payload_bandwidth(lc,max)/1000.0);
}
}
/* 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;
}
void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt){
call->audio_bw=(int)(get_audio_payload_bandwidth(call->core,pt)/1000.0);
ms_message("Audio bandwidth for this call is %i",call->audio_bw);
}
void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt){
call->audio_bw=(int)(ceil(get_audio_payload_bandwidth(call->core,pt)/1000.0)); /*rounding codec bandwidth should be avoid, specially for AMR*/
ms_message("Audio bandwidth for this call is %i",call->audio_bw);
}