audiostream.c 27.2 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"
aymeric's avatar
aymeric committed
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

#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)
{
50 51 52 53 54
	if (stream->session!=NULL) {
		rtp_session_unregister_event_queue(stream->session,stream->evq);
		rtp_session_destroy(stream->session);
	}
	if (stream->evq) ortp_ev_queue_destroy(stream->evq);
aymeric's avatar
aymeric committed
55 56 57 58 59 60 61 62
	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);
	if (stream->ec!=NULL)	ms_filter_destroy(stream->ec);
63 64
	if (stream->volrecv!=NULL) ms_filter_destroy(stream->volrecv);
	if (stream->volsend!=NULL) ms_filter_destroy(stream->volsend);
65
	if (stream->equalizer!=NULL) ms_filter_destroy(stream->equalizer);
aymeric's avatar
aymeric committed
66
	if (stream->ticker!=NULL) ms_ticker_destroy(stream->ticker);
jehan's avatar
jehan committed
67 68
	if (stream->read_resampler!=NULL) ms_filter_destroy(stream->read_resampler);
	if (stream->write_resampler!=NULL) ms_filter_destroy(stream->write_resampler);
69
	if (stream->dtmfgen_rtp!=NULL) ms_filter_destroy(stream->dtmfgen_rtp);
70 71
	if (stream->rc) ms_audio_bitrate_controller_destroy(stream->rc);
	if (stream->qi) ms_quality_indicator_destroy(stream->qi);
aymeric's avatar
aymeric committed
72 73 74 75 76 77 78
	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
79
	AudioStream *stream=(AudioStream*)user_data;
aymeric's avatar
aymeric committed
80 81 82 83 84
	if (dtmf>15){
		ms_warning("Unsupported telephone-event type.");
		return;
	}
	ms_message("Receiving dtmf %c.",dtmf_tab[dtmf]);
smorlat's avatar
smorlat committed
85 86
	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
87 88 89 90 91 92 93
	}
}

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
94

aymeric's avatar
aymeric committed
95 96 97 98 99 100 101 102 103
	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
104
	ret=(res0->ai_addr->sa_family==AF_INET6);
aymeric's avatar
aymeric committed
105 106 107 108 109
	freeaddrinfo(res0);
#endif
	return ret;
}

jehan's avatar
jehan committed
110
static void audio_stream_configure_resampler(MSFilter *resampler,MSFilter *from,MSFilter *to) {
111 112 113
	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
114 115
	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
116 117
	ms_message("configuring %s-->%s from rate[%i] to rate [%i]",
	           from->desc->name, to->desc->name, from_rate,to_rate);
118 119
}

aymeric's avatar
aymeric committed
120 121 122 123 124 125 126 127 128 129 130
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);
131
	rtp_session_set_ssrc_changed_threshold(rtpr,0);
132
	rtp_session_set_rtcp_report_interval(rtpr,2500); /*at the beginning of the session send more reports*/
aymeric's avatar
aymeric committed
133 134 135
	return rtpr;
}

aymeric's avatar
aymeric committed
136 137
#if defined(_WIN32_WCE)
time_t
Jehan Monnier's avatar
Jehan Monnier committed
138
ms_time (time_t *t)
aymeric's avatar
aymeric committed
139 140 141 142 143 144 145 146 147 148 149
{
    DWORD timemillis = GetTickCount();
	if (timemillis>0)
	{
		if (t!=NULL)
			*t = timemillis/1000;
	}
	return timemillis/1000;
}
#endif

150 151
static void audio_stream_process_rtcp(AudioStream *stream, mblk_t *m){
	do{
152
		const report_block_t *rb=NULL;
153 154
		if (rtcp_is_SR(m)){
			rb=rtcp_SR_get_report_block(m,0);
155 156 157 158 159 160 161 162 163 164 165 166 167
		}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);
			ms_message("audio_stream_process_rtcp: interarrival jitter=%u , "
			           "lost packets percentage since last report=%f, round trip time=%f seconds",ij,flost,rt);
			if (stream->rc) ms_audio_bitrate_controller_process_rtcp(stream->rc,m);
			if (stream->qi) ms_quality_indicator_update_from_feedback(stream->qi,m);
168 169 170 171
		}
	}while(rtcp_next_packet(m));
}

172
void audio_stream_iterate(AudioStream *stream){
173 174 175 176
	if (stream->is_beginning && ms_time(NULL)-stream->start_time>15){
		rtp_session_set_rtcp_report_interval(stream->session,5000);
		stream->is_beginning=FALSE;
	}
177 178 179
	if (stream->evq){
		OrtpEvent *ev=ortp_ev_queue_get(stream->evq);
		if (ev!=NULL){
180 181
			OrtpEventType evt=ortp_event_get_type(ev);
			if (evt==ORTP_EVENT_RTCP_PACKET_RECEIVED){
182 183
				audio_stream_process_rtcp(stream,ortp_event_get_data(ev)->packet);
				stream->last_packet_time=ms_time(NULL);
184 185 186
			}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);
187
			}
188
			ortp_event_destroy(ev);
189
		}
190 191 192 193 194 195
	}
}

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
196 197
		if (stats->recv!=stream->last_packet_count){
			stream->last_packet_count=stats->recv;
Simon Morlat's avatar
Simon Morlat committed
198
			stream->last_packet_time=ms_time(NULL);
199 200 201 202 203 204
		}
	}
	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
205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
		}
	}
	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){
			ms_filter_unlink(stream->rtprecv, 0, stream->decoder, 0);
			ms_filter_unlink(stream->decoder,0,stream->dtmfgen,0);
			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);
			ms_filter_link (stream->rtprecv, 0, stream->decoder, 0);
			ms_filter_link (stream->decoder,0 , stream->dtmfgen, 0);
			ms_filter_preprocess(stream->decoder,stream->ticker);
Jehan Monnier's avatar
Jehan Monnier committed
233

aymeric's avatar
aymeric committed
234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253
		}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);
}

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;
	PayloadType *pt;
254 255
	int tmp;
	MSConnectionHelper h;
256
	int sample_rate;
aymeric's avatar
aymeric committed
257 258 259 260 261

	rtp_session_set_profile(rtps,profile);
	if (remport>0) rtp_session_set_remote_addr_full(rtps,remip,remport,rem_rtcp_port);
	rtp_session_set_payload_type(rtps,payload);
	rtp_session_set_jitter_compensation(rtps,jitt_comp);
Jehan Monnier's avatar
Jehan Monnier committed
262

aymeric's avatar
aymeric committed
263 264 265 266 267
	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
268

aymeric's avatar
aymeric committed
269
	stream->dtmfgen=ms_filter_new(MS_DTMF_GEN_ID);
smorlat's avatar
smorlat committed
270
	rtp_session_signal_connect(rtps,"telephone-event",(RtpCallback)on_dtmf_received,(unsigned long)stream);
aymeric's avatar
aymeric committed
271 272 273 274 275
	rtp_session_signal_connect(rtps,"payload_type_changed",(RtpCallback)payload_type_changed,(unsigned long)stream);
	/* creates the local part */
	if (captcard!=NULL) stream->soundread=ms_snd_card_create_reader(captcard);
	else {
		stream->soundread=ms_filter_new(MS_FILE_PLAYER_ID);
276
		stream->read_resampler=ms_filter_new(MS_RESAMPLE_ID);
aymeric's avatar
aymeric committed
277 278 279 280 281 282 283
		if (infile!=NULL) audio_stream_play(stream,infile);
	}
	if (playcard!=NULL) stream->soundwrite=ms_snd_card_create_writer(playcard);
	else {
		stream->soundwrite=ms_filter_new(MS_FILE_REC_ID);
		if (outfile!=NULL) audio_stream_record(stream,outfile);
	}
Jehan Monnier's avatar
Jehan Monnier committed
284

aymeric's avatar
aymeric committed
285 286 287 288 289 290
	/* 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;
	}
291 292 293 294 295 296 297
	if (rtp_profile_get_payload_from_mime (profile,"telephone-event")==NULL
	    && ( 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);
	}
	
298 299 300 301 302
	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
303 304 305 306 307 308 309
	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...*/
		ms_error("mediastream.c: No decoder available for payload %i.",payload);
		return -1;
	}
Jehan Monnier's avatar
Jehan Monnier committed
310

jehan's avatar
jehan committed
311 312 313 314
	stream->volsend=ms_filter_new(MS_VOLUME_ID);
	stream->volrecv=ms_filter_new(MS_VOLUME_ID);
	audio_stream_enable_echo_limiter(stream,stream->el_type);
	audio_stream_enable_noise_gate(stream,stream->use_ng);
aymeric's avatar
aymeric committed
315

316 317 318 319 320 321 322
	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);
	}

323 324 325 326
	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
327
	/* give the sound filters some properties */
328
	if (ms_filter_call_method(stream->soundread,MS_FILTER_SET_SAMPLE_RATE,&sample_rate) != 0) {
329 330 331 332
		/* need to add resampler*/
		if (stream->read_resampler == NULL) stream->read_resampler=ms_filter_new(MS_RESAMPLE_ID);
	}

333
	if (ms_filter_call_method(stream->soundwrite,MS_FILTER_SET_SAMPLE_RATE,&sample_rate) != 0) {
334 335 336 337
		/* need to add resampler*/
		if (stream->write_resampler == NULL) stream->write_resampler=ms_filter_new(MS_RESAMPLE_ID);
	}

aymeric's avatar
aymeric committed
338 339
	tmp=1;
	ms_filter_call_method(stream->soundwrite,MS_FILTER_SET_NCHANNELS, &tmp);
Jehan Monnier's avatar
Jehan Monnier committed
340

341
	/*configure the echo canceller if required */
342 343 344 345 346
	if (!use_ec) {
		ms_filter_destroy(stream->ec);
		stream->ec=NULL;
	}
	if (stream->ec){
347
		ms_filter_call_method(stream->ec,MS_FILTER_SET_SAMPLE_RATE,&sample_rate);
348 349
	}

aymeric's avatar
aymeric committed
350 351
	/* give the encoder/decoder some parameters*/
	ms_filter_call_method(stream->encoder,MS_FILTER_SET_SAMPLE_RATE,&pt->clock_rate);
352
	ms_message("Payload's bitrate is %i",pt->normal_bitrate);
aymeric's avatar
aymeric committed
353 354 355 356 357
	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
358

aymeric's avatar
aymeric committed
359 360
	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
361

smorlat's avatar
smorlat committed
362 363 364 365
	/*create the equalizer*/
	stream->equalizer=ms_filter_new(MS_EQUALIZER_ID);
	tmp=stream->eq_active;
	ms_filter_call_method(stream->equalizer,MS_EQUALIZER_SET_ACTIVE,&tmp);
366 367
	/*configure resampler if needed*/
	if (stream->read_resampler){
jehan's avatar
jehan committed
368
		audio_stream_configure_resampler(stream->read_resampler,stream->soundread,stream->rtpsend);
369
	}
smorlat's avatar
smorlat committed
370

371
	if (stream->write_resampler){
jehan's avatar
jehan committed
372
		audio_stream_configure_resampler(stream->write_resampler,stream->rtprecv,stream->soundwrite);
373
	}
374 375 376 377 378 379

	if (stream->use_rc){
		stream->rc=ms_audio_bitrate_controller_new(stream->session,stream->encoder,0);
	}
	stream->qi=ms_quality_indicator_new(stream->session);
	
aymeric's avatar
aymeric committed
380 381
	/* and then connect all */
	/* tip: draw yourself the picture if you don't understand */
Jehan Monnier's avatar
Jehan Monnier committed
382

383 384 385
	/*sending graph*/
	ms_connection_helper_start(&h);
	ms_connection_helper_link(&h,stream->soundread,-1,0);
386 387
	if (stream->read_resampler)
		ms_connection_helper_link(&h,stream->read_resampler,0,0);
388 389 390 391
	if (stream->ec)
		ms_connection_helper_link(&h,stream->ec,1,1);
	if (stream->volsend)
		ms_connection_helper_link(&h,stream->volsend,0,0);
392 393
	if (stream->dtmfgen_rtp)
		ms_connection_helper_link(&h,stream->dtmfgen_rtp,0,0);
394 395 396 397 398 399 400 401
	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);
	ms_connection_helper_link(&h,stream->dtmfgen,0,0);
smorlat's avatar
smorlat committed
402 403
	if (stream->equalizer)
		ms_connection_helper_link(&h,stream->equalizer,0,0);
404 405 406 407
	if (stream->volrecv)
		ms_connection_helper_link(&h,stream->volrecv,0,0);
	if (stream->ec)
		ms_connection_helper_link(&h,stream->ec,0,0);
408 409
	if (stream->write_resampler)
		ms_connection_helper_link(&h,stream->write_resampler,0,0);
410
	ms_connection_helper_link(&h,stream->soundwrite,0,-1);
Jehan Monnier's avatar
Jehan Monnier committed
411

aymeric's avatar
aymeric committed
412 413
	/* create ticker */
	stream->ticker=ms_ticker_new();
smorlat's avatar
smorlat committed
414
	ms_ticker_set_name(stream->ticker,"Audio MSTicker");
aymeric's avatar
aymeric committed
415 416
	ms_ticker_attach(stream->ticker,stream->soundread);
	ms_ticker_attach(stream->ticker,stream->rtprecv);
Jehan Monnier's avatar
Jehan Monnier committed
417

418 419 420
	stream->start_time=ms_time(NULL);
	stream->is_beginning=TRUE;

aymeric's avatar
aymeric committed
421 422 423
	return 0;
}

424
void audio_stream_enable_adaptive_bitrate_control(AudioStream *st, bool_t enabled){
425 426
	st->use_rc=enabled;
}
aymeric's avatar
aymeric committed
427 428 429 430 431 432 433 434 435

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
436 437
	MSSndCard *sndcard_playback;
	MSSndCard *sndcard_capture;
aymeric's avatar
aymeric committed
438
	AudioStream *stream;
aymeric's avatar
aymeric committed
439 440 441
	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
442 443
		return NULL;
	stream=audio_stream_new(locport, ms_is_ipv6(remip));
aymeric's avatar
aymeric committed
444
	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
445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475
	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) !");
	}
}

void audio_stream_play(AudioStream *st, const char *name){
	if (ms_filter_get_id(st->soundread)==MS_FILE_PLAYER_ID){
		ms_filter_call_method_noarg(st->soundread,MS_FILE_PLAYER_CLOSE);
		ms_filter_call_method(st->soundread,MS_FILE_PLAYER_OPEN,(void*)name);
476
		if (st->read_resampler){
Simon Morlat's avatar
Simon Morlat committed
477
			audio_stream_configure_resampler(st->read_resampler,st->soundread,st->rtpsend);
478
		}
479
		ms_filter_call_method_noarg(st->soundread,MS_FILE_PLAYER_START);
aymeric's avatar
aymeric committed
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499
	}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");
	}
}


AudioStream *audio_stream_new(int locport, bool_t ipv6){
	AudioStream *stream=(AudioStream *)ms_new0(AudioStream,1);
500
	MSFilterDesc *ec_desc=ms_filter_lookup_by_name("MSOslec");
Simon Morlat's avatar
Simon Morlat committed
501 502 503 504
	
	ms_filter_enable_statistics(TRUE);
	ms_filter_reset_statistics();
	
aymeric's avatar
aymeric committed
505
	stream->session=create_duplex_rtpsession(locport,ipv6);
506
	/*some filters are created right now to allow configuration by the application before start() */
aymeric's avatar
aymeric committed
507
	stream->rtpsend=ms_filter_new(MS_RTP_SEND_ID);
508 509 510 511 512 513
	
	if (ec_desc!=NULL)
		stream->ec=ms_filter_new_from_desc(ec_desc);
	else
		stream->ec=ms_filter_new(MS_SPEEX_EC_ID);

514 515
	stream->evq=ortp_ev_queue_new();
	rtp_session_register_event_queue(stream->session,stream->evq);
smorlat's avatar
smorlat committed
516
	stream->play_dtmfs=TRUE;
smorlat's avatar
smorlat committed
517
	stream->use_gc=FALSE;
518
	stream->use_agc=FALSE;
519
	stream->use_ng=FALSE;
aymeric's avatar
aymeric committed
520 521 522
	return stream;
}

smorlat's avatar
smorlat committed
523 524 525 526
void audio_stream_play_received_dtmfs(AudioStream *st, bool_t yesno){
	st->play_dtmfs=yesno;
}

aymeric's avatar
aymeric committed
527 528 529 530 531 532 533 534 535
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);
}

536 537 538 539 540 541 542 543
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);
544 545
}

546 547
void audio_stream_enable_echo_limiter(AudioStream *stream, EchoLimiterType type){
	stream->el_type=type;
jehan's avatar
jehan committed
548 549 550 551 552 553 554
	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);
	}
555 556
}

smorlat's avatar
smorlat committed
557 558 559 560
void audio_stream_enable_gain_control(AudioStream *stream, bool_t val){
	stream->use_gc=val;
}

561 562 563 564
void audio_stream_enable_automatic_gain_control(AudioStream *stream, bool_t val){
	stream->use_agc=val;
}

565 566
void audio_stream_enable_noise_gate(AudioStream *stream, bool_t val){
	stream->use_ng=val;
jehan's avatar
jehan committed
567 568 569 570 571 572 573
	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);
	}


574 575
}

smorlat's avatar
smorlat committed
576 577 578 579 580 581 582
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
583 584 585 586 587 588 589 590
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
591
void audio_stream_equalizer_set_gain(AudioStream *stream, int frequency, float gain, int freq_width){
smorlat's avatar
smorlat committed
592 593 594 595
	if (stream->equalizer){
		MSEqualizerGain d;
		d.frequency=frequency;
		d.gain=gain;
smorlat's avatar
smorlat committed
596
		d.width=freq_width;
smorlat's avatar
smorlat committed
597 598 599 600
		ms_filter_call_method(stream->equalizer,MS_EQUALIZER_SET_GAIN,&d);
	}
}

aymeric's avatar
aymeric committed
601 602 603
void audio_stream_stop(AudioStream * stream)
{
	if (stream->ticker){
604
		MSConnectionHelper h;
aymeric's avatar
aymeric committed
605 606
		ms_ticker_detach(stream->ticker,stream->soundread);
		ms_ticker_detach(stream->ticker,stream->rtprecv);
Jehan Monnier's avatar
Jehan Monnier committed
607

aymeric's avatar
aymeric committed
608
		rtp_stats_display(rtp_session_get_stats(stream->session),"Audio session's RTP statistics");
Jehan Monnier's avatar
Jehan Monnier committed
609

610 611 612
		/*dismantle the outgoing graph*/
		ms_connection_helper_start(&h);
		ms_connection_helper_unlink(&h,stream->soundread,-1,0);
613 614
		if (stream->read_resampler!=NULL)
			ms_connection_helper_unlink(&h,stream->read_resampler,0,0);
615 616 617 618
		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);
619 620
		if (stream->dtmfgen_rtp)
			ms_connection_helper_unlink(&h,stream->dtmfgen_rtp,0,0);
621 622 623 624 625 626 627 628
		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);
		ms_connection_helper_unlink(&h,stream->dtmfgen,0,0);
smorlat's avatar
smorlat committed
629 630
		if (stream->equalizer)
			ms_connection_helper_unlink(&h,stream->equalizer,0,0);
631 632 633 634
		if (stream->volrecv!=NULL)
			ms_connection_helper_unlink(&h,stream->volrecv,0,0);
		if (stream->ec!=NULL)
			ms_connection_helper_unlink(&h,stream->ec,0,0);
jehan's avatar
jehan committed
635 636
		if (stream->write_resampler!=NULL)
			ms_connection_helper_unlink(&h,stream->write_resampler,0,0);
637 638
		ms_connection_helper_unlink(&h,stream->soundwrite,0,-1);

aymeric's avatar
aymeric committed
639 640
	}
	audio_stream_free(stream);
641
	ms_filter_log_statistics();
aymeric's avatar
aymeric committed
642 643 644 645 646 647 648 649 650 651
}

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
652 653 654
	int srcrate,dstrate;
	MSConnectionHelper h;

aymeric's avatar
aymeric committed
655 656
	stream=(RingStream *)ms_new0(RingStream,1);
	stream->source=ms_filter_new(MS_FILE_PLAYER_ID);
657 658 659
	if (file)
		ms_filter_call_method(stream->source,MS_FILE_PLAYER_OPEN,(void*)file);
	
aymeric's avatar
aymeric committed
660 661 662 663
	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);
664 665 666
	stream->gendtmf=ms_filter_new(MS_DTMF_GEN_ID);
	
	
aymeric's avatar
aymeric committed
667
	stream->sndwrite=ms_snd_card_create_writer(sndcard);
Simon Morlat's avatar
Simon Morlat committed
668 669 670 671 672 673 674 675 676 677
	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
678
	ms_filter_call_method(stream->source,MS_FILTER_GET_NCHANNELS,&tmp);
679
	ms_filter_call_method(stream->gendtmf,MS_FILTER_SET_NCHANNELS,&tmp);
aymeric's avatar
aymeric committed
680
	ms_filter_call_method(stream->sndwrite,MS_FILTER_SET_NCHANNELS,&tmp);
681
	
aymeric's avatar
aymeric committed
682
	stream->ticker=ms_ticker_new();
683
	
smorlat's avatar
smorlat committed
684
	ms_ticker_set_name(stream->ticker,"Audio (ring) MSTicker");
Simon Morlat's avatar
Simon Morlat committed
685 686 687 688 689 690 691

	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
692
	ms_ticker_attach(stream->ticker,stream->source);
693
	
aymeric's avatar
aymeric committed
694 695 696
	return stream;
}

697 698 699 700 701 702 703 704 705 706
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
707
void ring_stop(RingStream *stream){
Simon Morlat's avatar
Simon Morlat committed
708
	MSConnectionHelper h;
aymeric's avatar
aymeric committed
709
	ms_ticker_detach(stream->ticker,stream->source);
Simon Morlat's avatar
Simon Morlat committed
710 711 712 713 714 715 716 717

	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
718 719
	ms_ticker_destroy(stream->ticker);
	ms_filter_destroy(stream->source);
720
	ms_filter_destroy(stream->gendtmf);
aymeric's avatar
aymeric committed
721 722
	ms_filter_destroy(stream->sndwrite);
	ms_free(stream);
Simon Morlat's avatar
Simon Morlat committed
723 724 725 726
#ifdef _WIN32_WCE
	ms_warning("Sleeping a bit after closing the audio device...");
	ms_sleep(1);
#endif
aymeric's avatar
aymeric committed
727 728 729 730 731
}


int audio_stream_send_dtmf(AudioStream *stream, char dtmf)
{
732 733 734
	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
735
		ms_filter_call_method(stream->rtpsend,MS_RTP_SEND_SEND_DTMF,&dtmf);
aymeric's avatar
aymeric committed
736 737
	return 0;
}
Simon Morlat's avatar
Simon Morlat committed
738 739 740 741 742 743 744

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
745 746 747 748


void audio_stream_mute_rtp(AudioStream *stream, bool_t val) 
{
749 750 751 752 753 754 755 756 757 758 759 760 761
	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
762
}
763 764 765 766 767 768 769

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;
}