static void stateful_analyzer_update(MSQosAnalyzer *objbase){
MSStatefulQosAnalyzer *obj=(MSStatefulQosAnalyzer*)objbase;
static time_t last_measure;
if (last_measure != ms_time(0)){
obj->upload_bandwidth_count++;
obj->upload_bandwidth_sum+=rtp_session_get_send_bandwidth(obj->session)/1000.0;
}
last_measure = ms_time(0);
if (obj->burst_duration_ms>0){
switch (obj->burst_state){
case MSStatefulQosAnalyzerBurstEnable:{
obj->burst_state=MSStatefulQosAnalyzerBurstInProgress;
ortp_gettimeofday(&obj->start_time, NULL);
rtp_session_set_duplication_ratio(obj->session, obj->burst_ratio);
obj->start_seq_number=obj->last_seq_number=obj->session->rtp.snd_seq;
} case MSStatefulQosAnalyzerBurstInProgress: {
struct timeval now;
double elapsed;
ortp_gettimeofday(&now,NULL);
elapsed=((now.tv_sec-obj->start_time.tv_sec)*1000.0) + ((now.tv_usec-obj->start_time.tv_usec)/1000.0);
obj->last_seq_number=obj->session->rtp.snd_seq;
if (elapsed > obj->burst_duration_ms){
obj->burst_state=MSStatefulQosAnalyzerBurstDisable;
rtp_session_set_duplication_ratio(obj->session, 0);
}
} case MSStatefulQosAnalyzerBurstDisable: {
}
}
}
}
static void loss_rate_estimation() {
bool_t supported = ms_filter_codec_supported("pcma");
if( supported ) {
LossRateEstimatorCtx ctx;
stream_manager_t * marielle, * margaux;
int loss_rate = 15;
start_adaptive_stream(MSAudio, &marielle, &margaux, PCMA8_PAYLOAD_TYPE, 8000, 0, loss_rate, 0, 0);
ctx.estimator=ortp_loss_rate_estimator_new(120, 2500, marielle->audio_stream->ms.sessions.rtp_session);
ctx.q = ortp_ev_queue_new();
rtp_session_register_event_queue(marielle->audio_stream->ms.sessions.rtp_session, ctx.q);
ctx.loss_rate = loss_rate;
/*loss rate should be the initial one*/
wait_for_until_with_parse_events(&marielle->audio_stream->ms, &margaux->audio_stream->ms, &loss_rate, 100, 10000, event_queue_cb,&ctx,NULL,NULL);
/*let's set some duplication. loss rate should NOT be changed */
rtp_session_set_duplication_ratio(marielle->audio_stream->ms.sessions.rtp_session, 10);
wait_for_until_with_parse_events(&marielle->audio_stream->ms, &margaux->audio_stream->ms, &loss_rate, 100, 10000, event_queue_cb,&ctx,NULL,NULL);
stop_adaptive_stream(marielle,margaux);
ortp_loss_rate_estimator_destroy(ctx.estimator);
ortp_ev_queue_destroy(ctx.q);
}
}
static void stateful_analyzer_update(MSQosAnalyzer *objbase){
MSStatefulQosAnalyzer *obj=(MSStatefulQosAnalyzer*)objbase;
static time_t last_measure;
/* Every seconds, save the bandwidth used. This is needed to know how much
bandwidth was used when receiving a receiver report. Since the report contains
the "last sequence number", it allows us to precisely know which interval to
consider */
if (last_measure != ms_time(0)){
obj->upload_bandwidth_count++;
obj->upload_bandwidth_sum+=rtp_session_get_send_bandwidth(obj->session)/1000.0;
/* Save bandwidth used at this time */
obj->upload_bandwidth[obj->upload_bandwidth_cur].seq_number = rtp_session_get_seq_number(obj->session);
obj->upload_bandwidth[obj->upload_bandwidth_cur].up_bandwidth = rtp_session_get_send_bandwidth(obj->session)/1000.0;
obj->upload_bandwidth_cur = (obj->upload_bandwidth_cur+1)%BW_HISTORY;
}
last_measure = ms_time(0);
if (obj->burst_duration_ms>0){
switch (obj->burst_state){
case MSStatefulQosAnalyzerBurstEnable:{
obj->burst_state=MSStatefulQosAnalyzerBurstInProgress;
ortp_gettimeofday(&obj->start_time, NULL);
rtp_session_set_duplication_ratio(obj->session, obj->burst_ratio);
} case MSStatefulQosAnalyzerBurstInProgress: {
struct timeval now;
float elapsed;
ortp_gettimeofday(&now,NULL);
elapsed=((now.tv_sec-obj->start_time.tv_sec)*1000.0) + ((now.tv_usec-obj->start_time.tv_usec)/1000.0);
if (elapsed > obj->burst_duration_ms){
obj->burst_state=MSStatefulQosAnalyzerBurstDisable;
rtp_session_set_duplication_ratio(obj->session, 0);
}
} case MSStatefulQosAnalyzerBurstDisable: {
}
}
}
}
static void start_adaptive_stream(StreamType type, stream_manager_t ** pmarielle, stream_manager_t ** pmargaux,
int payload, int initial_bitrate, int target_bw, float loss_rate, int latency, float dup_ratio) {
OrtpNetworkSimulatorParams params={0};
params.enabled=TRUE;
params.loss_rate=loss_rate;
params.max_bandwidth=target_bw;
params.latency=latency;
int pause_time=0;
MediaStream *marielle_ms,*margaux_ms;
#if VIDEO_ENABLED
MSWebCam * marielle_webcam=ms_web_cam_manager_get_default_cam (ms_web_cam_manager_get());
#endif
stream_manager_t *marielle=*pmarielle=stream_manager_new(type);
stream_manager_t *margaux=*pmargaux=stream_manager_new(type);
if (type == AudioStreamType){
marielle_ms=&marielle->audio_stream->ms;
margaux_ms=&margaux->audio_stream->ms;
}else{
marielle_ms=&marielle->video_stream->ms;
margaux_ms=&margaux->video_stream->ms;
}
/* Disable avpf. */
PayloadType* pt = rtp_profile_get_payload(&rtp_profile, VP8_PAYLOAD_TYPE);
CU_ASSERT_PTR_NOT_NULL_FATAL(pt);
payload_type_unset_flag(pt, PAYLOAD_TYPE_RTCP_FEEDBACK_ENABLED);
media_stream_enable_adaptive_bitrate_control(marielle_ms,TRUE);
rtp_session_set_duplication_ratio(marielle_ms->sessions.rtp_session, dup_ratio);
if (marielle->type == AudioStreamType){
audio_manager_start(marielle,payload,margaux->local_rtp,initial_bitrate,HELLO_16K_1S_FILE,NULL);
ms_filter_call_method(marielle->audio_stream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
audio_manager_start(margaux,payload,marielle->local_rtp,0,NULL,RECORDED_16K_1S_FILE);
}else{
#if VIDEO_ENABLED
video_manager_start(marielle,payload,margaux->local_rtp,0,marielle_webcam);
video_stream_set_direction(margaux->video_stream,VideoStreamRecvOnly);
video_manager_start(margaux,payload,marielle->local_rtp,0,NULL);
#else
ms_fatal("Unsupported stream type [%s]",ms_stream_type_to_string(marielle->type));
#endif
}
rtp_session_enable_network_simulation(margaux_ms->sessions.rtp_session,¶ms);
}
static void upload_bandwidth_computation() {
bool_t supported = ms_filter_codec_supported("pcma");
if( supported ) {
stream_manager_t * marielle, * margaux;
int i;
start_adaptive_stream(AudioStreamType, &marielle, &margaux, PCMA8_PAYLOAD_TYPE, 8000, 0, 0, 0, 0);
media_stream_enable_adaptive_bitrate_control(&marielle->audio_stream->ms,FALSE);
for (i = 0; i < 5; i++){
rtp_session_set_duplication_ratio(marielle->audio_stream->ms.sessions.rtp_session, i);
iterate_adaptive_stream(marielle, margaux, 100000, &marielle->rtcp_count, 2*(i+1));
/*since PCMA uses 80kbit/s, upload bandwidth should just be 80+80*duplication_ratio kbit/s */
CU_ASSERT_TRUE(fabs(rtp_session_get_send_bandwidth(marielle->audio_stream->ms.sessions.rtp_session)/1000. - 80.*(i+1)) < 1.f);
}
stop_adaptive_stream(marielle,margaux);
}
}
void start_adaptive_stream(MSFormatType type, stream_manager_t ** pmarielle, stream_manager_t ** pmargaux,
int payload, int initial_bitrate, int max_bw, float loss_rate, int latency, float dup_ratio) {
int pause_time=0;
PayloadType* pt;
MediaStream *marielle_ms,*margaux_ms;
OrtpNetworkSimulatorParams params={0};
#if VIDEO_ENABLED
MSWebCam * marielle_webcam=ms_web_cam_manager_get_default_cam (ms_web_cam_manager_get());
#endif
stream_manager_t *marielle=*pmarielle=stream_manager_new(type);
stream_manager_t *margaux=*pmargaux=stream_manager_new(type);
char* file = ms_strdup_printf("%s/%s", mediastreamer2_tester_get_file_root(), HELLO_16K_1S_FILE);
char* recorded_file = ms_strdup_printf("%s/%s", mediastreamer2_tester_get_writable_dir(), RECORDED_16K_1S_FILE);
marielle->user_data = recorded_file;
params.enabled=TRUE;
params.loss_rate=loss_rate;
params.max_bandwidth=max_bw;
params.latency=latency;
if (type == MSAudio){
marielle_ms=&marielle->audio_stream->ms;
margaux_ms=&margaux->audio_stream->ms;
}else{
marielle_ms=&marielle->video_stream->ms;
margaux_ms=&margaux->video_stream->ms;
}
/* Disable avpf. */
pt = rtp_profile_get_payload(&rtp_profile, VP8_PAYLOAD_TYPE);
CU_ASSERT_PTR_NOT_NULL_FATAL(pt);
payload_type_unset_flag(pt, PAYLOAD_TYPE_RTCP_FEEDBACK_ENABLED);
media_stream_enable_adaptive_bitrate_control(marielle_ms,TRUE);
media_stream_set_adaptive_bitrate_algorithm(marielle_ms, MSQosAnalyzerAlgorithmStateful);
rtp_session_set_duplication_ratio(marielle_ms->sessions.rtp_session, dup_ratio);
if (marielle->type == MSAudio){
audio_manager_start(marielle,payload,margaux->local_rtp,initial_bitrate,file,NULL);
ms_filter_call_method(marielle->audio_stream->soundread,MS_FILE_PLAYER_LOOP,&pause_time);
audio_manager_start(margaux,payload,marielle->local_rtp,0,NULL,recorded_file);
}else{
#if VIDEO_ENABLED
video_manager_start(marielle,payload,margaux->local_rtp,0,marielle_webcam);
video_stream_set_direction(margaux->video_stream,VideoStreamRecvOnly);
video_manager_start(margaux,payload,marielle->local_rtp,0,NULL);
#else
ms_fatal("Unsupported stream type [%s]",ms_format_type_to_string(marielle->type));
#endif
}
ms_qos_analyzer_set_on_action_suggested(ms_bitrate_controller_get_qos_analyzer(marielle_ms->rc),
qos_analyzer_on_action_suggested,
*pmarielle);
rtp_session_enable_network_simulation(margaux_ms->sessions.rtp_session,¶ms);
ms_free(recorded_file);
ms_free(file);
}
