audiostream.c 34 KB
Newer Older
aymeric's avatar
aymeric committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
/*
mediastreamer2 library - modular sound and video processing and streaming
Copyright (C) 2006  Simon MORLAT (simon.morlat@linphone.org)

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/


#ifdef HAVE_CONFIG_H
#include "mediastreamer-config.h"
#endif

#include "mediastreamer2/mediastream.h"

#include "mediastreamer2/dtmfgen.h"
#include "mediastreamer2/mssndcard.h"
#include "mediastreamer2/msrtp.h"
#include "mediastreamer2/msfileplayer.h"
#include "mediastreamer2/msfilerec.h"
32
#include "mediastreamer2/msvolume.h"
smorlat's avatar
smorlat committed
33
#include "mediastreamer2/msequalizer.h"
34
#include "mediastreamer2/mscodecutils.h"
aymeric's avatar
aymeric committed
35 36 37 38 39 40 41 42 43 44 45 46 47 48

#ifdef INET6
	#include <sys/types.h>
#ifndef WIN32
	#include <sys/socket.h>
	#include <netdb.h>
#endif
#endif

#define MAX_RTP_SIZE	1500

/* this code is not part of the library itself, it is part of the mediastream program */
void audio_stream_free(AudioStream *stream)
{
49
	if (stream->session!=NULL) {
Guillaume Beraudo's avatar
Guillaume Beraudo committed
50 51 52 53
		if (stream->ortpZrtpContext != NULL) {
			ortp_zrtp_context_destroy(stream->ortpZrtpContext);
			stream->ortpZrtpContext=NULL;
		}
54 55 56
		rtp_session_unregister_event_queue(stream->session,stream->evq);
		rtp_session_destroy(stream->session);
		
57
	}
58
	if (stream->ice_check_list!=NULL) ice_check_list_destroy(stream->ice_check_list);
59
	if (stream->evq) ortp_ev_queue_destroy(stream->evq);
aymeric's avatar
aymeric committed
60 61 62 63 64 65 66
	if (stream->rtpsend!=NULL) ms_filter_destroy(stream->rtpsend);
	if (stream->rtprecv!=NULL) ms_filter_destroy(stream->rtprecv);
	if (stream->soundread!=NULL) ms_filter_destroy(stream->soundread);
	if (stream->soundwrite!=NULL) ms_filter_destroy(stream->soundwrite);
	if (stream->encoder!=NULL) ms_filter_destroy(stream->encoder);
	if (stream->decoder!=NULL) ms_filter_destroy(stream->decoder);
	if (stream->dtmfgen!=NULL) ms_filter_destroy(stream->dtmfgen);
67
	if (stream->plc!=NULL)	ms_filter_destroy(stream->plc);
aymeric's avatar
aymeric committed
68
	if (stream->ec!=NULL)	ms_filter_destroy(stream->ec);
69 70
	if (stream->volrecv!=NULL) ms_filter_destroy(stream->volrecv);
	if (stream->volsend!=NULL) ms_filter_destroy(stream->volsend);
71
	if (stream->equalizer!=NULL) ms_filter_destroy(stream->equalizer);
aymeric's avatar
aymeric committed
72
	if (stream->ticker!=NULL) ms_ticker_destroy(stream->ticker);
jehan's avatar
jehan committed
73 74
	if (stream->read_resampler!=NULL) ms_filter_destroy(stream->read_resampler);
	if (stream->write_resampler!=NULL) ms_filter_destroy(stream->write_resampler);
75
	if (stream->dtmfgen_rtp!=NULL) ms_filter_destroy(stream->dtmfgen_rtp);
Simon Morlat's avatar
Simon Morlat committed
76
	if (stream->dummy) ms_filter_destroy(stream->dummy);
77
	if (stream->rc) ms_bitrate_controller_destroy(stream->rc);
78
	if (stream->qi) ms_quality_indicator_destroy(stream->qi);
aymeric's avatar
aymeric committed
79 80 81 82 83 84 85
	ms_free(stream);
}

static int dtmf_tab[16]={'0','1','2','3','4','5','6','7','8','9','*','#','A','B','C','D'};

static void on_dtmf_received(RtpSession *s, int dtmf, void * user_data)
{
smorlat's avatar
smorlat committed
86
	AudioStream *stream=(AudioStream*)user_data;
aymeric's avatar
aymeric committed
87 88 89 90 91
	if (dtmf>15){
		ms_warning("Unsupported telephone-event type.");
		return;
	}
	ms_message("Receiving dtmf %c.",dtmf_tab[dtmf]);
smorlat's avatar
smorlat committed
92 93
	if (stream->dtmfgen!=NULL && stream->play_dtmfs){
		ms_filter_call_method(stream->dtmfgen,MS_DTMF_GEN_PUT,&dtmf_tab[dtmf]);
aymeric's avatar
aymeric committed
94 95 96 97 98 99 100
	}
}

bool_t ms_is_ipv6(const char *remote){
	bool_t ret=FALSE;
#ifdef INET6
	struct addrinfo hints, *res0;
Jehan Monnier's avatar
Jehan Monnier committed
101

aymeric's avatar
aymeric committed
102 103 104 105 106 107 108 109 110
	int err;
	memset(&hints, 0, sizeof(hints));
	hints.ai_family = PF_UNSPEC;
	hints.ai_socktype = SOCK_DGRAM;
	err = getaddrinfo(remote,"8000", &hints, &res0);
	if (err!=0) {
		ms_warning ("get_local_addr_for: %s", gai_strerror(err));
		return FALSE;
	}
Jehan Monnier's avatar
Jehan Monnier committed
111
	ret=(res0->ai_addr->sa_family==AF_INET6);
aymeric's avatar
aymeric committed
112 113 114 115 116
	freeaddrinfo(res0);
#endif
	return ret;
}

jehan's avatar
jehan committed
117
static void audio_stream_configure_resampler(MSFilter *resampler,MSFilter *from,MSFilter *to) {
118 119 120
	int from_rate=0, to_rate=0;
	ms_filter_call_method(from,MS_FILTER_GET_SAMPLE_RATE,&from_rate);
	ms_filter_call_method(to,MS_FILTER_GET_SAMPLE_RATE,&to_rate);
jehan's avatar
jehan committed
121 122
	ms_filter_call_method(resampler,MS_FILTER_SET_SAMPLE_RATE,&from_rate);
	ms_filter_call_method(resampler,MS_FILTER_SET_OUTPUT_SAMPLE_RATE,&to_rate);
Simon Morlat's avatar
Simon Morlat committed
123 124
	ms_message("configuring %s-->%s from rate[%i] to rate [%i]",
	           from->desc->name, to->desc->name, from_rate,to_rate);
125 126
}

Simon Morlat's avatar
Simon Morlat committed
127 128 129 130 131 132 133 134 135
static void disable_checksums(ortp_socket_t sock){
#if defined(DISABLE_CHECKSUMS) && defined(SO_NO_CHECK)
	int option=1;
	if (setsockopt(sock,SOL_SOCKET,SO_NO_CHECK,&option,sizeof(option))==-1){
		ms_warning("Could not disable udp checksum: %s",strerror(errno));
	}
#endif
}

136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
MSTickerPrio __ms_get_default_prio(bool_t is_video){
	const char *penv;
	if (is_video){
		return MS_TICKER_PRIO_NORMAL;
	}
	penv=getenv("MS_AUDIO_PRIO");
	if (penv){
		if (strcasecmp(penv,"NORMAL")==0)
			return MS_TICKER_PRIO_NORMAL;
		if (strcasecmp(penv,"HIGH")==0)
			return MS_TICKER_PRIO_HIGH;
		if (strcasecmp(penv,"REALTIME")==0)
			return MS_TICKER_PRIO_REALTIME;
		ms_error("Undefined priority %s", penv);
	}
151
#ifdef __linux
152
	return MS_TICKER_PRIO_REALTIME;
153 154 155
#else
    return MS_TICKER_PRIO_HIGH;
#endif
156 157
}

aymeric's avatar
aymeric committed
158 159 160 161 162 163 164 165 166 167 168
RtpSession * create_duplex_rtpsession( int locport, bool_t ipv6){
	RtpSession *rtpr;
	rtpr=rtp_session_new(RTP_SESSION_SENDRECV);
	rtp_session_set_recv_buf_size(rtpr,MAX_RTP_SIZE);
	rtp_session_set_scheduling_mode(rtpr,0);
	rtp_session_set_blocking_mode(rtpr,0);
	rtp_session_enable_adaptive_jitter_compensation(rtpr,TRUE);
	rtp_session_set_symmetric_rtp(rtpr,TRUE);
	rtp_session_set_local_addr(rtpr,ipv6 ? "::" : "0.0.0.0",locport);
	rtp_session_signal_connect(rtpr,"timestamp_jump",(RtpCallback)rtp_session_resync,(long)NULL);
	rtp_session_signal_connect(rtpr,"ssrc_changed",(RtpCallback)rtp_session_resync,(long)NULL);
169
	rtp_session_set_ssrc_changed_threshold(rtpr,0);
170
	rtp_session_set_rtcp_report_interval(rtpr,2500); /*at the beginning of the session send more reports*/
Simon Morlat's avatar
Simon Morlat committed
171
	disable_checksums(rtp_session_get_rtp_socket(rtpr));
aymeric's avatar
aymeric committed
172 173 174
	return rtpr;
}

aymeric's avatar
aymeric committed
175 176
#if defined(_WIN32_WCE)
time_t
Jehan Monnier's avatar
Jehan Monnier committed
177
ms_time (time_t *t)
aymeric's avatar
aymeric committed
178 179 180 181 182 183 184 185 186 187 188
{
    DWORD timemillis = GetTickCount();
	if (timemillis>0)
	{
		if (t!=NULL)
			*t = timemillis/1000;
	}
	return timemillis/1000;
}
#endif

189 190
static void audio_stream_process_rtcp(AudioStream *stream, mblk_t *m){
	do{
191
		const report_block_t *rb=NULL;
192 193
		if (rtcp_is_SR(m)){
			rb=rtcp_SR_get_report_block(m,0);
194 195 196 197 198 199 200 201 202
		}else if (rtcp_is_RR(m)){
			rb=rtcp_RR_get_report_block(m,0);
		}
		if (rb){
			unsigned int ij;
			float rt=rtp_session_get_round_trip_propagation(stream->session);
			float flost;
			ij=report_block_get_interarrival_jitter(rb);
			flost=(float)(100.0*report_block_get_fraction_lost(rb)/256.0);
203 204
			ms_message("audio_stream_iterate(): remote statistics available\n\tremote's interarrival jitter=%u\n"
			           "\tremote's lost packets percentage since last report=%f\n\tround trip time=%f seconds",ij,flost,rt);
205
			if (stream->rc) ms_bitrate_controller_process_rtcp(stream->rc,m);
206
			if (stream->qi) ms_quality_indicator_update_from_feedback(stream->qi,m);
207 208 209 210
		}
	}while(rtcp_next_packet(m));
}

211
void audio_stream_iterate(AudioStream *stream){
212 213 214 215
	if (stream->is_beginning && ms_time(NULL)-stream->start_time>15){
		rtp_session_set_rtcp_report_interval(stream->session,5000);
		stream->is_beginning=FALSE;
	}
216 217 218
	if (stream->evq){
		OrtpEvent *ev=ortp_ev_queue_get(stream->evq);
		if (ev!=NULL){
219 220
			OrtpEventType evt=ortp_event_get_type(ev);
			if (evt==ORTP_EVENT_RTCP_PACKET_RECEIVED){
221 222
				audio_stream_process_rtcp(stream,ortp_event_get_data(ev)->packet);
				stream->last_packet_time=ms_time(NULL);
223 224 225
			}else if (evt==ORTP_EVENT_RTCP_PACKET_EMITTED){
				/*we choose to update the quality indicator when the oRTP stack decides to emit a RTCP report */
				ms_quality_indicator_update_local(stream->qi);
226
				ms_message("audio_stream_iterate(): local statistics available\n\tLocal's current jitter buffer size:%f ms",rtp_session_get_jitter_stats(stream->session)->jitter_buffer_size_ms);
227 228
			}else if (evt==ORTP_EVENT_STUN_PACKET_RECEIVED){
				ice_handle_stun_packet(stream->ice_check_list,stream->session,ortp_event_get_data(ev)->packet);
229
			}
230
			ortp_event_destroy(ev);
231
		}
232 233 234 235 236 237
	}
}

bool_t audio_stream_alive(AudioStream * stream, int timeout){
	const rtp_stats_t *stats=rtp_session_get_stats(stream->session);
	if (stats->recv!=0){
aymeric's avatar
aymeric committed
238 239
		if (stats->recv!=stream->last_packet_count){
			stream->last_packet_count=stats->recv;
Simon Morlat's avatar
Simon Morlat committed
240
			stream->last_packet_time=ms_time(NULL);
241 242 243 244 245 246
		}
	}
	if (stats->recv!=0){
		if (ms_time(NULL)-stream->last_packet_time>timeout){
			/* more than timeout seconds of inactivity*/
			return FALSE;
aymeric's avatar
aymeric committed
247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264
		}
	}
	return TRUE;
}

/*this function must be called from the MSTicker thread:
it replaces one filter by another one.
This is a dirty hack that works anyway.
It would be interesting to have something that does the job
simplier within the MSTicker api
*/
void audio_stream_change_decoder(AudioStream *stream, int payload){
	RtpSession *session=stream->session;
	RtpProfile *prof=rtp_session_get_profile(session);
	PayloadType *pt=rtp_profile_get_payload(prof,payload);
	if (pt!=NULL){
		MSFilter *dec=ms_filter_create_decoder(pt->mime_type);
		if (dec!=NULL){
Yann Diorcet's avatar
Yann Diorcet committed
265
			MSFilter *nextFilter = stream->decoder->outputs[0]->next.filter;
aymeric's avatar
aymeric committed
266
			ms_filter_unlink(stream->rtprecv, 0, stream->decoder, 0);
267
			ms_filter_unlink(stream->decoder, 0, nextFilter, 0);
aymeric's avatar
aymeric committed
268 269 270 271 272
			ms_filter_postprocess(stream->decoder);
			ms_filter_destroy(stream->decoder);
			stream->decoder=dec;
			if (pt->recv_fmtp!=NULL)
				ms_filter_call_method(stream->decoder,MS_FILTER_ADD_FMTP,(void*)pt->recv_fmtp);
Yann Diorcet's avatar
Yann Diorcet committed
273
			ms_filter_link(stream->rtprecv, 0, stream->decoder, 0);
274
			ms_filter_link(stream->decoder, 0, nextFilter, 0);
aymeric's avatar
aymeric committed
275
			ms_filter_preprocess(stream->decoder,stream->ticker);
Jehan Monnier's avatar
Jehan Monnier committed
276

aymeric's avatar
aymeric committed
277 278 279 280 281 282 283 284 285 286 287 288 289
		}else{
			ms_warning("No decoder found for %s",pt->mime_type);
		}
	}else{
		ms_warning("No payload defined with number %i",payload);
	}
}

static void payload_type_changed(RtpSession *session, unsigned long data){
	AudioStream *stream=(AudioStream*)data;
	int pt=rtp_session_get_recv_payload_type(stream->session);
	audio_stream_change_decoder(stream,pt);
}
jehan's avatar
jehan committed
290 291 292 293
/*invoked from FEC capable filters*/
static  mblk_t* audio_stream_payload_picker(MSRtpPayloadPickerContext* context,unsigned int sequence_number) {
	return rtp_session_pick_with_cseq(((AudioStream*)(context->filter_graph_manager))->session, sequence_number);
}
Simon Morlat's avatar
Simon Morlat committed
294 295

static void start_ticker(AudioStream *stream){
296 297 298 299
	MSTickerParams params={0};
	params.name="Audio MSTicker";
	params.prio=__ms_get_default_prio(FALSE);
	stream->ticker=ms_ticker_new_with_params(&params);
Simon Morlat's avatar
Simon Morlat committed
300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337
}

static void stop_preload_graph(AudioStream *stream){
	ms_ticker_detach(stream->ticker,stream->dummy);
	ms_filter_unlink(stream->dummy,0,stream->soundwrite,0);
	ms_filter_destroy(stream->dummy);
	stream->dummy=NULL;
}

bool_t audio_stream_started(AudioStream *stream){
	return stream->start_time!=0;
}

void audio_stream_prepare_sound(AudioStream *stream, MSSndCard *playcard, MSSndCard *captcard){
#ifdef __ios
	if (captcard && playcard){
		stream->soundread=ms_snd_card_create_reader(captcard);
		stream->soundwrite=ms_snd_card_create_writer(playcard);
		stream->dummy=ms_filter_new(MS_FILE_PLAYER_ID);
		ms_filter_link(stream->dummy,0,stream->soundwrite,0);
		start_ticker(stream);
		ms_ticker_attach(stream->ticker,stream->dummy);
	}
#endif
}

void audio_stream_unprepare_sound(AudioStream *stream){
#ifdef __ios
	if (stream->dummy){
		stop_preload_graph(stream);
		ms_filter_destroy(stream->soundread);
		stream->soundread=NULL;
		ms_filter_destroy(stream->soundwrite);
		stream->soundwrite=NULL;
	}
#endif
}

aymeric's avatar
aymeric committed
338 339 340 341 342
int audio_stream_start_full(AudioStream *stream, RtpProfile *profile, const char *remip,int remport,
	int rem_rtcp_port, int payload,int jitt_comp, const char *infile, const char *outfile,
	MSSndCard *playcard, MSSndCard *captcard, bool_t use_ec)
{
	RtpSession *rtps=stream->session;
Simon Morlat's avatar
Simon Morlat committed
343
	PayloadType *pt,*tel_ev;
344 345
	int tmp;
	MSConnectionHelper h;
346
	int sample_rate;
jehan's avatar
jehan committed
347
	MSRtpPayloadPickerContext picker_context;
aymeric's avatar
aymeric committed
348 349 350

	rtp_session_set_profile(rtps,profile);
	if (remport>0) rtp_session_set_remote_addr_full(rtps,remip,remport,rem_rtcp_port);
Simon Morlat's avatar
Simon Morlat committed
351 352 353
	if (rem_rtcp_port<=0){
		rtp_session_enable_rtcp(rtps,FALSE);
	}
aymeric's avatar
aymeric committed
354 355
	rtp_session_set_payload_type(rtps,payload);
	rtp_session_set_jitter_compensation(rtps,jitt_comp);
Jehan Monnier's avatar
Jehan Monnier committed
356

aymeric's avatar
aymeric committed
357 358 359 360 361
	if (remport>0)
		ms_filter_call_method(stream->rtpsend,MS_RTP_SEND_SET_SESSION,rtps);
	stream->rtprecv=ms_filter_new(MS_RTP_RECV_ID);
	ms_filter_call_method(stream->rtprecv,MS_RTP_RECV_SET_SESSION,rtps);
	stream->session=rtps;
Jehan Monnier's avatar
Jehan Monnier committed
362

Yann Diorcet's avatar
Yann Diorcet committed
363 364
	if((stream->features & AUDIO_STREAM_FEATURE_DTMF) != 0)
		stream->dtmfgen=ms_filter_new(MS_DTMF_GEN_ID);
Yann Diorcet's avatar
Yann Diorcet committed
365 366
	else
		stream->dtmfgen=NULL;
smorlat's avatar
smorlat committed
367
	rtp_session_signal_connect(rtps,"telephone-event",(RtpCallback)on_dtmf_received,(unsigned long)stream);
aymeric's avatar
aymeric committed
368 369
	rtp_session_signal_connect(rtps,"payload_type_changed",(RtpCallback)payload_type_changed,(unsigned long)stream);
	/* creates the local part */
Simon Morlat's avatar
Simon Morlat committed
370 371 372 373
	if (captcard!=NULL){
		if (stream->soundread==NULL)
			stream->soundread=ms_snd_card_create_reader(captcard);
	}else {
aymeric's avatar
aymeric committed
374
		stream->soundread=ms_filter_new(MS_FILE_PLAYER_ID);
375
		stream->read_resampler=ms_filter_new(MS_RESAMPLE_ID);
aymeric's avatar
aymeric committed
376 377
		if (infile!=NULL) audio_stream_play(stream,infile);
	}
Simon Morlat's avatar
Simon Morlat committed
378 379 380 381
	if (playcard!=NULL) {
		if (stream->soundwrite==NULL)
			stream->soundwrite=ms_snd_card_create_writer(playcard);
	}else {
aymeric's avatar
aymeric committed
382 383 384
		stream->soundwrite=ms_filter_new(MS_FILE_REC_ID);
		if (outfile!=NULL) audio_stream_record(stream,outfile);
	}
Jehan Monnier's avatar
Jehan Monnier committed
385

aymeric's avatar
aymeric committed
386 387 388 389 390 391
	/* creates the couple of encoder/decoder */
	pt=rtp_profile_get_payload(profile,payload);
	if (pt==NULL){
		ms_error("audiostream.c: undefined payload type.");
		return -1;
	}
Simon Morlat's avatar
Simon Morlat committed
392 393
	tel_ev=rtp_profile_get_payload_from_mime (profile,"telephone-event");

Yann Diorcet's avatar
Yann Diorcet committed
394
	if ((stream->features & AUDIO_STREAM_FEATURE_DTMF_ECHO) != 0 && (tel_ev==NULL || ( (tel_ev->flags & PAYLOAD_TYPE_FLAG_CAN_RECV) && !(tel_ev->flags & PAYLOAD_TYPE_FLAG_CAN_SEND)))
395 396 397 398
	    && ( strcasecmp(pt->mime_type,"pcmu")==0 || strcasecmp(pt->mime_type,"pcma")==0)){
		/*if no telephone-event payload is usable and pcma or pcmu is used, we will generate
		  inband dtmf*/
		stream->dtmfgen_rtp=ms_filter_new (MS_DTMF_GEN_ID);
Yann Diorcet's avatar
Yann Diorcet committed
399 400
	} else {
		stream->dtmfgen_rtp=NULL;
401 402
	}
	
403 404 405 406 407
	if (ms_filter_call_method(stream->rtpsend,MS_FILTER_GET_SAMPLE_RATE,&sample_rate)!=0){
		ms_error("Sample rate is unknown for RTP side !");
		return -1;
	}
	
aymeric's avatar
aymeric committed
408 409 410 411
	stream->encoder=ms_filter_create_encoder(pt->mime_type);
	stream->decoder=ms_filter_create_decoder(pt->mime_type);
	if ((stream->encoder==NULL) || (stream->decoder==NULL)){
		/* big problem: we have not a registered codec for this payload...*/
412
		ms_error("audio_stream_start_full: No decoder or encoder available for payload %s.",pt->mime_type);
aymeric's avatar
aymeric committed
413 414
		return -1;
	}
jehan's avatar
jehan committed
415 416 417 418 419 420
	if (ms_filter_has_method(stream->decoder, MS_FILTER_SET_RTP_PAYLOAD_PICKER)) {
		ms_message(" decoder has FEC capabilities");
		picker_context.filter_graph_manager=stream;
		picker_context.picker=&audio_stream_payload_picker;
		ms_filter_call_method(stream->decoder,MS_FILTER_SET_RTP_PAYLOAD_PICKER, &picker_context);
	}
Yann Diorcet's avatar
Yann Diorcet committed
421 422
	if((stream->features & AUDIO_STREAM_FEATURE_VOL_SND) != 0)
		stream->volsend=ms_filter_new(MS_VOLUME_ID);
Yann Diorcet's avatar
Yann Diorcet committed
423 424
	else
		stream->volsend=NULL;
Yann Diorcet's avatar
Yann Diorcet committed
425
	if((stream->features & AUDIO_STREAM_FEATURE_VOL_RCV) != 0)
Yann Diorcet's avatar
Yann Diorcet committed
426 427 428
		stream->volrecv=ms_filter_new(MS_VOLUME_ID);
	else
		stream->volrecv=NULL;
jehan's avatar
jehan committed
429 430
	audio_stream_enable_echo_limiter(stream,stream->el_type);
	audio_stream_enable_noise_gate(stream,stream->use_ng);
aymeric's avatar
aymeric committed
431

432 433 434 435 436 437 438
	if (stream->use_agc){
		int tmp=1;
		if (stream->volsend==NULL)
			stream->volsend=ms_filter_new(MS_VOLUME_ID);
		ms_filter_call_method(stream->volsend,MS_VOLUME_ENABLE_AGC,&tmp);
	}

439 440 441 442
	if (stream->dtmfgen)
		ms_filter_call_method(stream->dtmfgen,MS_FILTER_SET_SAMPLE_RATE,&sample_rate);
	if (stream->dtmfgen_rtp)
		ms_filter_call_method(stream->dtmfgen_rtp,MS_FILTER_SET_SAMPLE_RATE,&sample_rate);
aymeric's avatar
aymeric committed
443
	/* give the sound filters some properties */
444
	if (ms_filter_call_method(stream->soundread,MS_FILTER_SET_SAMPLE_RATE,&sample_rate) != 0) {
445 446 447 448
		/* need to add resampler*/
		if (stream->read_resampler == NULL) stream->read_resampler=ms_filter_new(MS_RESAMPLE_ID);
	}

449
	if (ms_filter_call_method(stream->soundwrite,MS_FILTER_SET_SAMPLE_RATE,&sample_rate) != 0) {
450 451 452 453
		/* need to add resampler*/
		if (stream->write_resampler == NULL) stream->write_resampler=ms_filter_new(MS_RESAMPLE_ID);
	}

aymeric's avatar
aymeric committed
454 455
	tmp=1;
	ms_filter_call_method(stream->soundwrite,MS_FILTER_SET_NCHANNELS, &tmp);
Jehan Monnier's avatar
Jehan Monnier committed
456

Yann Diorcet's avatar
Yann Diorcet committed
457 458 459 460 461 462
	// Override feature
	if(!use_ec)
		stream->features &=~AUDIO_STREAM_FEATURE_EC;
	else
		stream->features |=AUDIO_STREAM_FEATURE_EC;

463
	/*configure the echo canceller if required */
Yann Diorcet's avatar
Yann Diorcet committed
464
	if ((stream->features & AUDIO_STREAM_FEATURE_EC) == 0 && stream->ec != NULL) {
465 466 467 468
		ms_filter_destroy(stream->ec);
		stream->ec=NULL;
	}
	if (stream->ec){
469
		ms_filter_call_method(stream->ec,MS_FILTER_SET_SAMPLE_RATE,&sample_rate);
470 471
	}

aymeric's avatar
aymeric committed
472 473
	/* give the encoder/decoder some parameters*/
	ms_filter_call_method(stream->encoder,MS_FILTER_SET_SAMPLE_RATE,&pt->clock_rate);
474
	ms_message("Payload's bitrate is %i",pt->normal_bitrate);
aymeric's avatar
aymeric committed
475 476 477 478 479
	if (pt->normal_bitrate>0){
		ms_message("Setting audio encoder network bitrate to %i",pt->normal_bitrate);
		ms_filter_call_method(stream->encoder,MS_FILTER_SET_BITRATE,&pt->normal_bitrate);
	}
	ms_filter_call_method(stream->decoder,MS_FILTER_SET_SAMPLE_RATE,&pt->clock_rate);
Jehan Monnier's avatar
Jehan Monnier committed
480

aymeric's avatar
aymeric committed
481 482
	if (pt->send_fmtp!=NULL) ms_filter_call_method(stream->encoder,MS_FILTER_ADD_FMTP, (void*)pt->send_fmtp);
	if (pt->recv_fmtp!=NULL) ms_filter_call_method(stream->decoder,MS_FILTER_ADD_FMTP,(void*)pt->recv_fmtp);
Jehan Monnier's avatar
Jehan Monnier committed
483

smorlat's avatar
smorlat committed
484
	/*create the equalizer*/
Yann Diorcet's avatar
Yann Diorcet committed
485 486
	if ((stream->features & AUDIO_STREAM_FEATURE_EQUALIZER) != 0)
		stream->equalizer=ms_filter_new(MS_EQUALIZER_ID);
Yann Diorcet's avatar
Yann Diorcet committed
487 488
	else
		stream->equalizer=NULL;
Yann Diorcet's avatar
Yann Diorcet committed
489 490 491 492 493
	if(stream->equalizer) {
		tmp=stream->eq_active;
		ms_filter_call_method(stream->equalizer,MS_EQUALIZER_SET_ACTIVE,&tmp);
	}

494 495
	/*configure resampler if needed*/
	if (stream->read_resampler){
jehan's avatar
jehan committed
496
		audio_stream_configure_resampler(stream->read_resampler,stream->soundread,stream->rtpsend);
497
	}
smorlat's avatar
smorlat committed
498

499
	if (stream->write_resampler){
jehan's avatar
jehan committed
500
		audio_stream_configure_resampler(stream->write_resampler,stream->rtprecv,stream->soundwrite);
501
	}
502 503 504 505 506 507

	if (stream->use_rc){
		stream->rc=ms_audio_bitrate_controller_new(stream->session,stream->encoder,0);
	}
	stream->qi=ms_quality_indicator_new(stream->session);
	
Yann Diorcet's avatar
Yann Diorcet committed
508
	/* Create PLC */
Yann Diorcet's avatar
Yann Diorcet committed
509 510
	if ((stream->features & AUDIO_STREAM_FEATURE_PLC) != 0) {
		int decoder_have_plc = 0;
511 512 513 514 515
		if (ms_filter_has_method(stream->decoder, MS_DECODER_HAVE_PLC)) {
			if (ms_filter_call_method(stream->decoder, MS_DECODER_HAVE_PLC, &decoder_have_plc) != 0) {
				ms_warning("MS_DECODER_HAVE_PLC function error: enable default plc");
			}
		} else {
Yann Diorcet's avatar
Yann Diorcet committed
516 517 518 519
			ms_warning("MS_DECODER_HAVE_PLC function not implemented by the decoder: enable default plc");
		}
		if (decoder_have_plc == 0)
			stream->plc = ms_filter_new(MS_GENERIC_PLC_ID);
Yann Diorcet's avatar
Yann Diorcet committed
520

Yann Diorcet's avatar
Yann Diorcet committed
521 522
		if (stream->plc)
			ms_filter_call_method(stream->plc, MS_FILTER_SET_SAMPLE_RATE, &sample_rate);
Yann Diorcet's avatar
Yann Diorcet committed
523 524
	} else {
		stream->plc = NULL;
Yann Diorcet's avatar
Yann Diorcet committed
525
	}
Yann Diorcet's avatar
Yann Diorcet committed
526

Simon Morlat's avatar
Simon Morlat committed
527 528 529 530 531 532 533
	/* create ticker */
	if (stream->ticker==NULL) start_ticker(stream);
	else{
		/*we were using the dummy preload graph, destroy it*/
		stop_preload_graph(stream);
	}
	
aymeric's avatar
aymeric committed
534 535
	/* and then connect all */
	/* tip: draw yourself the picture if you don't understand */
Jehan Monnier's avatar
Jehan Monnier committed
536

537 538 539
	/*sending graph*/
	ms_connection_helper_start(&h);
	ms_connection_helper_link(&h,stream->soundread,-1,0);
540 541
	if (stream->read_resampler)
		ms_connection_helper_link(&h,stream->read_resampler,0,0);
542 543 544 545
	if (stream->ec)
		ms_connection_helper_link(&h,stream->ec,1,1);
	if (stream->volsend)
		ms_connection_helper_link(&h,stream->volsend,0,0);
546 547
	if (stream->dtmfgen_rtp)
		ms_connection_helper_link(&h,stream->dtmfgen_rtp,0,0);
548 549 550 551 552 553 554
	ms_connection_helper_link(&h,stream->encoder,0,0);
	ms_connection_helper_link(&h,stream->rtpsend,0,-1);

	/*receiving graph*/
	ms_connection_helper_start(&h);
	ms_connection_helper_link(&h,stream->rtprecv,-1,0);
	ms_connection_helper_link(&h,stream->decoder,0,0);
Yann Diorcet's avatar
Yann Diorcet committed
555
	if(stream->plc)
Yann Diorcet's avatar
Yann Diorcet committed
556 557 558
		ms_connection_helper_link(&h,stream->plc,0,0);
	if (stream->dtmfgen)
		ms_connection_helper_link(&h,stream->dtmfgen,0,0);
559 560
	if (stream->volrecv)
		ms_connection_helper_link(&h,stream->volrecv,0,0);
561 562
	if (stream->equalizer)
		ms_connection_helper_link(&h,stream->equalizer,0,0);
563 564
	if (stream->ec)
		ms_connection_helper_link(&h,stream->ec,0,0);
565 566
	if (stream->write_resampler)
		ms_connection_helper_link(&h,stream->write_resampler,0,0);
567
	ms_connection_helper_link(&h,stream->soundwrite,0,-1);
Jehan Monnier's avatar
Jehan Monnier committed
568

jehan's avatar
jehan committed
569 570 571 572 573
	/*to make sure all preprocess are done before befre processing audio*/
	ms_ticker_attach_multiple(	stream->ticker
								,stream->soundread
								,stream->rtprecv
								,NULL);
Jehan Monnier's avatar
Jehan Monnier committed
574

575 576 577
	stream->start_time=ms_time(NULL);
	stream->is_beginning=TRUE;

aymeric's avatar
aymeric committed
578 579 580
	return 0;
}

581
void audio_stream_enable_adaptive_bitrate_control(AudioStream *st, bool_t enabled){
582 583
	st->use_rc=enabled;
}
aymeric's avatar
aymeric committed
584 585 586 587 588 589 590 591 592

int audio_stream_start_with_files(AudioStream *stream, RtpProfile *prof,const char *remip, int remport,
	int rem_rtcp_port, int pt,int jitt_comp, const char *infile, const char * outfile)
{
	return audio_stream_start_full(stream,prof,remip,remport,rem_rtcp_port,pt,jitt_comp,infile,outfile,NULL,NULL,FALSE);
}

AudioStream * audio_stream_start(RtpProfile *prof,int locport,const char *remip,int remport,int profile,int jitt_comp,bool_t use_ec)
{
aymeric's avatar
aymeric committed
593 594
	MSSndCard *sndcard_playback;
	MSSndCard *sndcard_capture;
aymeric's avatar
aymeric committed
595
	AudioStream *stream;
aymeric's avatar
aymeric committed
596 597 598
	sndcard_capture=ms_snd_card_manager_get_default_capture_card(ms_snd_card_manager_get());
	sndcard_playback=ms_snd_card_manager_get_default_playback_card(ms_snd_card_manager_get());
	if (sndcard_capture==NULL || sndcard_playback==NULL)
aymeric's avatar
aymeric committed
599 600
		return NULL;
	stream=audio_stream_new(locport, ms_is_ipv6(remip));
aymeric's avatar
aymeric committed
601
	if (audio_stream_start_full(stream,prof,remip,remport,remport+1,profile,jitt_comp,NULL,NULL,sndcard_playback,sndcard_capture,use_ec)==0) return stream;
aymeric's avatar
aymeric committed
602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628
	audio_stream_free(stream);
	return NULL;
}

AudioStream *audio_stream_start_with_sndcards(RtpProfile *prof,int locport,const char *remip,int remport,int profile,int jitt_comp,MSSndCard *playcard, MSSndCard *captcard, bool_t use_ec)
{
	AudioStream *stream;
	if (playcard==NULL) {
		ms_error("No playback card.");
		return NULL;
	}
	if (captcard==NULL) {
		ms_error("No capture card.");
		return NULL;
	}
	stream=audio_stream_new(locport, ms_is_ipv6(remip));
	if (audio_stream_start_full(stream,prof,remip,remport,remport+1,profile,jitt_comp,NULL,NULL,playcard,captcard,use_ec)==0) return stream;
	audio_stream_free(stream);
	return NULL;
}

void audio_stream_set_rtcp_information(AudioStream *st, const char *cname, const char *tool){
	if (st->session!=NULL){
		rtp_session_set_source_description(st->session,cname,NULL,NULL,NULL,NULL,tool , "This is free software (GPL) !");
	}
}

629
// Pass NULL to stop playing
aymeric's avatar
aymeric committed
630
void audio_stream_play(AudioStream *st, const char *name){
631 632 633 634
	if (st->soundread == NULL) {
		ms_warning("Cannot play file: the stream hasn't been started");
		return;
	}
aymeric's avatar
aymeric committed
635 636
	if (ms_filter_get_id(st->soundread)==MS_FILE_PLAYER_ID){
		ms_filter_call_method_noarg(st->soundread,MS_FILE_PLAYER_CLOSE);
637 638 639 640 641 642
		if (name != NULL) {
			ms_filter_call_method(st->soundread,MS_FILE_PLAYER_OPEN,(void*)name);
			if (st->read_resampler){
				audio_stream_configure_resampler(st->read_resampler,st->soundread,st->rtpsend);
			}
			ms_filter_call_method_noarg(st->soundread,MS_FILE_PLAYER_START);
643
		}
aymeric's avatar
aymeric committed
644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660
	}else{
		ms_error("Cannot play file: the stream hasn't been started with"
		" audio_stream_start_with_files");
	}
}

void audio_stream_record(AudioStream *st, const char *name){
	if (ms_filter_get_id(st->soundwrite)==MS_FILE_REC_ID){
		ms_filter_call_method_noarg(st->soundwrite,MS_FILE_REC_CLOSE);
		ms_filter_call_method(st->soundwrite,MS_FILE_REC_OPEN,(void*)name);
		ms_filter_call_method_noarg(st->soundwrite,MS_FILE_REC_START);
	}else{
		ms_error("Cannot record file: the stream hasn't been started with"
		" audio_stream_start_with_files");
	}
}

Yann Diorcet's avatar
Yann Diorcet committed
661 662 663 664 665 666 667
uint32_t audio_stream_get_features(AudioStream *st){
	return st->features;
}

void audio_stream_set_features(AudioStream *st, uint32_t features){
	st->features = features;
}
aymeric's avatar
aymeric committed
668 669 670

AudioStream *audio_stream_new(int locport, bool_t ipv6){
	AudioStream *stream=(AudioStream *)ms_new0(AudioStream,1);
671
	MSFilterDesc *ec_desc=ms_filter_lookup_by_name("MSOslec");
Simon Morlat's avatar
Simon Morlat committed
672 673 674 675
	
	ms_filter_enable_statistics(TRUE);
	ms_filter_reset_statistics();
	
aymeric's avatar
aymeric committed
676
	stream->session=create_duplex_rtpsession(locport,ipv6);
677
	/*some filters are created right now to allow configuration by the application before start() */
aymeric's avatar
aymeric committed
678
	stream->rtpsend=ms_filter_new(MS_RTP_SEND_ID);
679
	
680 681
	stream->ice_check_list=ice_check_list_new();

682 683 684 685 686
	if (ec_desc!=NULL)
		stream->ec=ms_filter_new_from_desc(ec_desc);
	else
		stream->ec=ms_filter_new(MS_SPEEX_EC_ID);

687 688
	stream->evq=ortp_ev_queue_new();
	rtp_session_register_event_queue(stream->session,stream->evq);
smorlat's avatar
smorlat committed
689
	stream->play_dtmfs=TRUE;
smorlat's avatar
smorlat committed
690
	stream->use_gc=FALSE;
691
	stream->use_agc=FALSE;
692
	stream->use_ng=FALSE;
Yann Diorcet's avatar
Yann Diorcet committed
693
	stream->features=AUDIO_STREAM_FEATURE_ALL;
aymeric's avatar
aymeric committed
694 695 696
	return stream;
}

smorlat's avatar
smorlat committed
697 698 699 700
void audio_stream_play_received_dtmfs(AudioStream *st, bool_t yesno){
	st->play_dtmfs=yesno;
}

aymeric's avatar
aymeric committed
701 702 703 704 705 706 707 708 709
int audio_stream_start_now(AudioStream *stream, RtpProfile * prof,  const char *remip, int remport, int rem_rtcp_port, int payload_type, int jitt_comp, MSSndCard *playcard, MSSndCard *captcard, bool_t use_ec){
	return audio_stream_start_full(stream,prof,remip,remport,rem_rtcp_port,
		payload_type,jitt_comp,NULL,NULL,playcard,captcard,use_ec);
}

void audio_stream_set_relay_session_id(AudioStream *stream, const char *id){
	ms_filter_call_method(stream->rtpsend, MS_RTP_SEND_SET_RELAY_SESSION_ID,(void*)id);
}

710 711 712 713 714 715 716 717
void audio_stream_set_echo_canceller_params(AudioStream *stream, int tail_len_ms, int delay_ms, int framesize){
	if (tail_len_ms!=0)
		ms_filter_call_method(stream->ec,MS_ECHO_CANCELLER_SET_TAIL_LENGTH,&tail_len_ms);
	if (delay_ms!=0){
		ms_filter_call_method(stream->ec,MS_ECHO_CANCELLER_SET_DELAY,&delay_ms);
	}
	if (framesize!=0)
		ms_filter_call_method(stream->ec,MS_ECHO_CANCELLER_SET_FRAMESIZE,&framesize);
718 719
}

720 721
void audio_stream_enable_echo_limiter(AudioStream *stream, EchoLimiterType type){
	stream->el_type=type;
jehan's avatar
jehan committed
722 723 724 725 726 727 728
	if (stream->volsend){
		bool_t enable_noise_gate = stream->el_type==ELControlFull;
		ms_filter_call_method(stream->volrecv,MS_VOLUME_ENABLE_NOISE_GATE,&enable_noise_gate);
		ms_filter_call_method(stream->volsend,MS_VOLUME_SET_PEER,type!=ELInactive?stream->volrecv:NULL);
	} else {
		ms_warning("cannot set echo limiter to mode [%i] because no volume send",type);
	}
729 730
}

smorlat's avatar
smorlat committed
731 732 733 734
void audio_stream_enable_gain_control(AudioStream *stream, bool_t val){
	stream->use_gc=val;
}

735 736 737 738
void audio_stream_enable_automatic_gain_control(AudioStream *stream, bool_t val){
	stream->use_agc=val;
}

739 740
void audio_stream_enable_noise_gate(AudioStream *stream, bool_t val){
	stream->use_ng=val;
jehan's avatar
jehan committed
741 742 743 744 745 746 747
	if (stream->volsend){
		ms_filter_call_method(stream->volsend,MS_VOLUME_ENABLE_NOISE_GATE,&val);
	} else {
		ms_warning("cannot set noise gate mode to [%i] because no volume send",val);
	}


748 749
}

smorlat's avatar
smorlat committed
750 751 752 753 754 755 756
void audio_stream_set_mic_gain(AudioStream *stream, float gain){
	if (stream->volsend){
		ms_filter_call_method(stream->volsend,MS_VOLUME_SET_GAIN,&gain);
	}else ms_warning("Could not apply gain: gain control wasn't activated. "
			"Use audio_stream_enable_gain_control() before starting the stream.");
}

smorlat's avatar
smorlat committed
757 758 759 760 761 762 763 764
void audio_stream_enable_equalizer(AudioStream *stream, bool_t enabled){
	stream->eq_active=enabled;
	if (stream->equalizer){
		int tmp=enabled;
		ms_filter_call_method(stream->equalizer,MS_EQUALIZER_SET_ACTIVE,&tmp);
	}
}

smorlat's avatar
smorlat committed
765
void audio_stream_equalizer_set_gain(AudioStream *stream, int frequency, float gain, int freq_width){
smorlat's avatar
smorlat committed
766 767 768 769
	if (stream->equalizer){
		MSEqualizerGain d;
		d.frequency=frequency;
		d.gain=gain;
smorlat's avatar
smorlat committed
770
		d.width=freq_width;
smorlat's avatar
smorlat committed
771 772 773 774
		ms_filter_call_method(stream->equalizer,MS_EQUALIZER_SET_GAIN,&d);
	}
}

aymeric's avatar
aymeric committed
775 776 777
void audio_stream_stop(AudioStream * stream)
{
	if (stream->ticker){
778
		MSConnectionHelper h;
Simon Morlat's avatar
Simon Morlat committed
779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806
		
		if (stream->dummy){
			stop_preload_graph(stream);
		}else if (stream->start_time!=0){
		
			ms_ticker_detach(stream->ticker,stream->soundread);
			ms_ticker_detach(stream->ticker,stream->rtprecv);

			rtp_stats_display(rtp_session_get_stats(stream->session),"Audio session's RTP statistics");

			/*dismantle the outgoing graph*/
			ms_connection_helper_start(&h);
			ms_connection_helper_unlink(&h,stream->soundread,-1,0);
			if (stream->read_resampler!=NULL)
				ms_connection_helper_unlink(&h,stream->read_resampler,0,0);
			if (stream->ec!=NULL)
				ms_connection_helper_unlink(&h,stream->ec,1,1);
			if (stream->volsend!=NULL)
				ms_connection_helper_unlink(&h,stream->volsend,0,0);
			if (stream->dtmfgen_rtp)
				ms_connection_helper_unlink(&h,stream->dtmfgen_rtp,0,0);
			ms_connection_helper_unlink(&h,stream->encoder,0,0);
			ms_connection_helper_unlink(&h,stream->rtpsend,0,-1);

			/*dismantle the receiving graph*/
			ms_connection_helper_start(&h);
			ms_connection_helper_unlink(&h,stream->rtprecv,-1,0);
			ms_connection_helper_unlink(&h,stream->decoder,0,0);
Yann Diorcet's avatar
Yann Diorcet committed
807 808 809 810
			if (stream->plc!=NULL)
				ms_connection_helper_unlink(&h,stream->plc,0,0);
			if (stream->dtmfgen!=NULL)
				ms_connection_helper_unlink(&h,stream->dtmfgen,0,0);
Simon Morlat's avatar
Simon Morlat committed
811 812
			if (stream->volrecv!=NULL)
				ms_connection_helper_unlink(&h,stream->volrecv,0,0);
Yann Diorcet's avatar
Yann Diorcet committed
813
			if (stream->equalizer!=NULL)
Simon Morlat's avatar
Simon Morlat committed
814 815 816 817 818 819 820
				ms_connection_helper_unlink(&h,stream->equalizer,0,0);
			if (stream->ec!=NULL)
				ms_connection_helper_unlink(&h,stream->ec,0,0);
			if (stream->write_resampler!=NULL)
				ms_connection_helper_unlink(&h,stream->write_resampler,0,0);
			ms_connection_helper_unlink(&h,stream->soundwrite,0,-1);
		}
aymeric's avatar
aymeric committed
821 822
	}
	audio_stream_free(stream);
823
	ms_filter_log_statistics();
aymeric's avatar
aymeric committed
824 825 826 827 828 829 830 831 832 833
}

RingStream * ring_start(const char *file, int interval, MSSndCard *sndcard){
   return ring_start_with_cb(file,interval,sndcard,NULL,NULL);
}

RingStream * ring_start_with_cb(const char *file,int interval,MSSndCard *sndcard, MSFilterNotifyFunc func,void * user_data)
{
	RingStream *stream;
	int tmp;
Simon Morlat's avatar
Simon Morlat committed
834 835 836
	int srcrate,dstrate;
	MSConnectionHelper h;

aymeric's avatar
aymeric committed
837 838
	stream=(RingStream *)ms_new0(RingStream,1);
	stream->source=ms_filter_new(MS_FILE_PLAYER_ID);
839 840 841
	if (file)
		ms_filter_call_method(stream->source,MS_FILE_PLAYER_OPEN,(void*)file);
	
aymeric's avatar
aymeric committed
842 843 844 845
	ms_filter_call_method(stream->source,MS_FILE_PLAYER_LOOP,&interval);
	ms_filter_call_method_noarg(stream->source,MS_FILE_PLAYER_START);
	if (func!=NULL)
		ms_filter_set_notify_callback(stream->source,func,user_data);
846 847 848
	stream->gendtmf=ms_filter_new(MS_DTMF_GEN_ID);
	
	
aymeric's avatar
aymeric committed
849
	stream->sndwrite=ms_snd_card_create_writer(sndcard);
Simon Morlat's avatar
Simon Morlat committed
850 851 852 853 854 855 856 857 858 859
	ms_filter_call_method(stream->source,MS_FILTER_GET_SAMPLE_RATE,&srcrate);
	ms_filter_call_method(stream->gendtmf,MS_FILTER_SET_SAMPLE_RATE,&srcrate);
	ms_filter_call_method(stream->sndwrite,MS_FILTER_SET_SAMPLE_RATE,&srcrate);
	ms_filter_call_method(stream->sndwrite,MS_FILTER_GET_SAMPLE_RATE,&dstrate);
	if (srcrate!=dstrate){
		stream->write_resampler=ms_filter_new(MS_RESAMPLE_ID);
		ms_filter_call_method(stream->write_resampler,MS_FILTER_SET_SAMPLE_RATE,&srcrate);
		ms_filter_call_method(stream->write_resampler,MS_FILTER_SET_OUTPUT_SAMPLE_RATE,&dstrate);
		ms_message("configuring resampler from rate[%i] to rate [%i]", srcrate,dstrate);
	}
aymeric's avatar
aymeric committed
860
	ms_filter_call_method(stream->source,MS_FILTER_GET_NCHANNELS,&tmp);
861
	ms_filter_call_method(stream->gendtmf,MS_FILTER_SET_NCHANNELS,&tmp);
aymeric's avatar
aymeric committed
862
	ms_filter_call_method(stream->sndwrite,MS_FILTER_SET_NCHANNELS,&tmp);
863
	
aymeric's avatar
aymeric committed
864
	stream->ticker=ms_ticker_new();
865
	
smorlat's avatar
smorlat committed
866
	ms_ticker_set_name(stream->ticker,"Audio (ring) MSTicker");
Simon Morlat's avatar
Simon Morlat committed
867 868 869 870 871 872 873

	ms_connection_helper_start(&h);
	ms_connection_helper_link(&h,stream->source,-1,0);
	ms_connection_helper_link(&h,stream->gendtmf,0,0);
	if (stream->write_resampler)
		ms_connection_helper_link(&h,stream->write_resampler,0,0);
	ms_connection_helper_link(&h,stream->sndwrite,0,-1);
aymeric's avatar
aymeric committed
874
	ms_ticker_attach(stream->ticker,stream->source);
875
	
aymeric's avatar
aymeric committed
876 877 878
	return stream;
}

879 880 881 882 883 884 885 886 887 888
void ring_play_dtmf(RingStream *stream, char dtmf, int duration_ms){
	if (duration_ms>0)
		ms_filter_call_method(stream->gendtmf, MS_DTMF_GEN_PLAY, &dtmf);
	else ms_filter_call_method(stream->gendtmf, MS_DTMF_GEN_START, &dtmf);
}

void ring_stop_dtmf(RingStream *stream){
	ms_filter_call_method_noarg(stream->gendtmf, MS_DTMF_GEN_STOP);
}

aymeric's avatar
aymeric committed
889
void ring_stop(RingStream *stream){
Simon Morlat's avatar
Simon Morlat committed
890
	MSConnectionHelper h;
aymeric's avatar
aymeric committed
891
	ms_ticker_detach(stream->ticker,stream->source);
Simon Morlat's avatar
Simon Morlat committed
892 893 894 895 896 897 898 899

	ms_connection_helper_start(&h);
	ms_connection_helper_unlink(&h,stream->source,-1,0);
	ms_connection_helper_unlink(&h,stream->gendtmf,0,0);
	if (stream->write_resampler)
		ms_connection_helper_unlink(&h,stream->write_resampler,0,0);
	ms_connection_helper_unlink(&h,stream->sndwrite,0,-1);

aymeric's avatar
aymeric committed
900 901
	ms_ticker_destroy(stream->ticker);
	ms_filter_destroy(stream->source);
902
	ms_filter_destroy(stream->gendtmf);
aymeric's avatar
aymeric committed
903 904
	ms_filter_destroy(stream->sndwrite);
	ms_free(stream);
Simon Morlat's avatar
Simon Morlat committed
905 906 907 908
#ifdef _WIN32_WCE
	ms_warning("Sleeping a bit after closing the audio device...");
	ms_sleep(1);
#endif
aymeric's avatar
aymeric committed
909 910 911 912 913
}


int audio_stream_send_dtmf(AudioStream *stream, char dtmf)
{
914 915 916
	if (stream->dtmfgen_rtp)
		ms_filter_call_method(stream->dtmfgen_rtp,MS_DTMF_GEN_PLAY,&dtmf);
	else if (stream->rtpsend)
smorlat's avatar
smorlat committed
917
		ms_filter_call_method(stream->rtpsend,MS_RTP_SEND_SEND_DTMF,&dtmf);
aymeric's avatar
aymeric committed
918 919
	return 0;
}
Simon Morlat's avatar
Simon Morlat committed
920 921 922 923 924 925 926

void audio_stream_get_local_rtp_stats(AudioStream *stream, rtp_stats_t *lstats){
	if (stream->session){
		const rtp_stats_t *stats=rtp_session_get_stats(stream->session);
		memcpy(lstats,stats,sizeof(*stats));
	}else memset(lstats,0,sizeof(rtp_stats_t));
}
Simon Morlat's avatar
Simon Morlat committed
927 928 929 930


void audio_stream_mute_rtp(AudioStream *stream, bool_t val) 
{
931 932 933 934 935 936 937 938 939 940 941 942 943
	if (stream->rtpsend){
		if (val)
			ms_filter_call_method(stream->rtpsend,MS_RTP_SEND_MUTE_MIC,&val);
		else
			ms_filter_call_method(stream->rtpsend,MS_RTP_SEND_UNMUTE_MIC,&val);
	}
}

float audio_stream_get_quality_rating(AudioStream *stream){
	if (stream->qi){
		return ms_quality_indicator_get_rating(stream->qi);
	}
	return 0;
Simon Morlat's avatar
Simon Morlat committed
944
}
945 946 947 948 949 950 951

MS2_PUBLIC float audio_stream_get_average_quality_rating(AudioStream *stream){
	if (stream->qi){
		return ms_quality_indicator_get_average_rating(stream->qi);
	}
	return 0;
}
Guillaume Beraudo's avatar
Guillaume Beraudo committed
952 953 954 955

void audio_stream_enable_zrtp(AudioStream *stream, OrtpZrtpParams *params){
	stream->ortpZrtpContext=ortp_zrtp_context_new(stream->session, params);
}
956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985

bool_t audio_stream_enable_strp(AudioStream* stream, enum ortp_srtp_crypto_suite_t suite, const char* snd_key, const char* rcv_key) {
	// assign new srtp transport to stream->session
	// with 2 Master Keys
	RtpTransport *rtp_tpt, *rtcp_tpt;	
	
	if (!ortp_srtp_supported()) {
		ms_error("ortp srtp support not enabled");
		return FALSE;
	}
	
	ms_message("%s: stream=%p key='%s' key='%s'", __FUNCTION__,
		stream, snd_key, rcv_key);
	 
	stream->srtp_session = ortp_srtp_create_configure_session(suite, 
		rtp_session_get_send_ssrc(stream->session), 
		snd_key, 
		rcv_key); 
	
	if (!stream->srtp_session) {
		return FALSE;
	}
	
	// TODO: check who will free rtp_tpt ?
	srtp_transport_new(stream->srtp_session, &rtp_tpt, &rtcp_tpt);
	
	rtp_session_set_transports(stream->session, rtp_tpt, rtcp_tpt);
	
	return TRUE;
}