// Wrap streams in Ruby objects
VALUE streams_to_ruby_array(VALUE self, AVFormatContext * format) {
VALUE streams = rb_ary_new();
unsigned i = 0;
for(; i < format->nb_streams; ++i) {
switch (format->streams[i]->codec->codec_type) {
case AVMEDIA_TYPE_VIDEO: {
// Video stream
rb_ary_push(streams, video_stream_new(self, format->streams[i]));
break;
}
case AVMEDIA_TYPE_AUDIO: {
// Audio stream
rb_ary_push(streams, audio_stream_new(self, format->streams[i]));
break;
}
default: {
// All other streams
rb_ary_push(streams, stream_new(self, format->streams[i]));
break;
}
}
}
return streams;
}
void linphone_call_init_media_streams(LinphoneCall *call){
LinphoneCore *lc=call->core;
SalMediaDescription *md=call->localdesc;
AudioStream *audiostream;
call->audiostream=audiostream=audio_stream_new(md->streams[0].port,linphone_core_ipv6_enabled(lc));
if (linphone_core_echo_limiter_enabled(lc)){
const char *type=lp_config_get_string(lc->config,"sound","el_type","mic");
if (strcasecmp(type,"mic")==0)
audio_stream_enable_echo_limiter(audiostream,ELControlMic);
else if (strcasecmp(type,"full")==0)
audio_stream_enable_echo_limiter(audiostream,ELControlFull);
}
audio_stream_enable_gain_control(audiostream,TRUE);
if (linphone_core_echo_cancellation_enabled(lc)){
int len,delay,framesize;
const char *statestr=lp_config_get_string(lc->config,"sound","ec_state",NULL);
len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
delay=lp_config_get_int(lc->config,"sound","ec_delay",0);
framesize=lp_config_get_int(lc->config,"sound","ec_framesize",0);
audio_stream_set_echo_canceller_params(audiostream,len,delay,framesize);
if (statestr && audiostream->ec){
ms_filter_call_method(audiostream->ec,MS_ECHO_CANCELLER_SET_STATE_STRING,(void*)statestr);
}
}
audio_stream_enable_automatic_gain_control(audiostream,linphone_core_agc_enabled(lc));
{
int enabled=lp_config_get_int(lc->config,"sound","noisegate",0);
audio_stream_enable_noise_gate(audiostream,enabled);
}
if (lc->a_rtp)
rtp_session_set_transports(audiostream->session,lc->a_rtp,lc->a_rtcp);
call->audiostream_app_evq = ortp_ev_queue_new();
rtp_session_register_event_queue(audiostream->session,call->audiostream_app_evq);
#ifdef VIDEO_ENABLED
if ((lc->video_conf.display || lc->video_conf.capture) && md->streams[1].port>0){
call->videostream=video_stream_new(md->streams[1].port,linphone_core_ipv6_enabled(lc));
if( lc->video_conf.displaytype != NULL)
video_stream_set_display_filter_name(call->videostream,lc->video_conf.displaytype);
video_stream_set_event_callback(call->videostream,video_stream_event_cb, call);
if (lc->v_rtp)
rtp_session_set_transports(call->videostream->session,lc->v_rtp,lc->v_rtcp);
call->videostream_app_evq = ortp_ev_queue_new();
rtp_session_register_event_queue(call->videostream->session,call->videostream_app_evq);
#ifdef TEST_EXT_RENDERER
video_stream_set_render_callback(call->videostream,rendercb,NULL);
#endif
}
#else
call->videostream=NULL;
#endif
}
stream_manager_t * stream_manager_new(MSFormatType type) {
stream_manager_t * mgr = ms_new0(stream_manager_t,1);
mgr->type=type;
mgr->local_rtp=(rand() % ((2^16)-1024) + 1024) & ~0x1;
mgr->local_rtcp=mgr->local_rtp+1;
mgr->user_data = 0;
if (mgr->type==MSAudio){
mgr->audio_stream=audio_stream_new (mgr->local_rtp, mgr->local_rtcp,FALSE);
}else{
#if VIDEO_ENABLED
mgr->video_stream=video_stream_new (mgr->local_rtp, mgr->local_rtcp,FALSE);
#else
ms_fatal("Unsupported stream type [%s]",ms_format_type_to_string(mgr->type));
#endif
}
return mgr;
}
static stream_manager_t * stream_manager_new(StreamType type) {
stream_manager_t * mgr = ms_new0(stream_manager_t,1);
mgr->type=type;
mgr->local_rtp=(rand() % ((2^16)-1024) + 1024) & ~0x1;
mgr->local_rtcp=mgr->local_rtp+1;
mgr->evq=ortp_ev_queue_new();
if (mgr->type==AudioStreamType){
mgr->audio_stream=audio_stream_new (mgr->local_rtp, mgr->local_rtcp,FALSE);
rtp_session_register_event_queue(mgr->audio_stream->ms.sessions.rtp_session,mgr->evq);
}else{
#if VIDEO_ENABLED
mgr->video_stream=video_stream_new (mgr->local_rtp, mgr->local_rtcp,FALSE);
rtp_session_register_event_queue(mgr->video_stream->ms.sessions.rtp_session,mgr->evq);
#else
ms_fatal("Unsupported stream type [%s]",ms_stream_type_to_string(mgr->type));
#endif
}
return mgr;
}
static void run_media_streams(int localport, const char *remote_ip, int remoteport, int payload, const char *fmtp,
int jitter, int bitrate, MSVideoSize vs, bool_t ec, bool_t agc, bool_t eq)
{
AudioStream *audio=NULL;
#ifdef VIDEO_ENABLED
VideoStream *video=NULL;
#endif
RtpSession *session=NULL;
PayloadType *pt;
RtpProfile *profile=rtp_profile_clone_full(&av_profile);
OrtpEvQueue *q=ortp_ev_queue_new();
ms_init();
signal(SIGINT,stop_handler);
pt=rtp_profile_get_payload(profile,payload);
if (pt==NULL){
printf("Error: no payload defined with number %i.",payload);
exit(-1);
}
if (fmtp!=NULL) payload_type_set_send_fmtp(pt,fmtp);
if (bitrate>0) pt->normal_bitrate=bitrate;
if (pt->type!=PAYLOAD_VIDEO){
MSSndCardManager *manager=ms_snd_card_manager_get();
MSSndCard *capt= capture_card==NULL ? ms_snd_card_manager_get_default_capture_card(manager) :
ms_snd_card_manager_get_card(manager,capture_card);
MSSndCard *play= playback_card==NULL ? ms_snd_card_manager_get_default_playback_card(manager) :
ms_snd_card_manager_get_card(manager,playback_card);
audio=audio_stream_new(localport,ms_is_ipv6(remote_ip));
audio_stream_enable_automatic_gain_control(audio,agc);
audio_stream_enable_noise_gate(audio,use_ng);
audio_stream_set_echo_canceller_params(audio,ec_len_ms,ec_delay_ms,ec_framesize);
printf("Starting audio stream.\n");
audio_stream_start_full(audio,profile,remote_ip,remoteport,remoteport+1, payload, jitter,infile,outfile,
outfile==NULL ? play : NULL ,infile==NULL ? capt : NULL,infile!=NULL ? FALSE: ec);
if (audio) {
if (use_ng && ng_threshold!=-1)
ms_filter_call_method(audio->volsend,MS_VOLUME_SET_NOISE_GATE_THRESHOLD,&ng_threshold);
session=audio->session;
}
}else{
#ifdef VIDEO_ENABLED
if (eq){
ms_fatal("Cannot put an audio equalizer in a video stream !");
exit(-1);
}
printf("Starting video stream.\n");
video=video_stream_new(localport, ms_is_ipv6(remote_ip));
video_stream_set_sent_video_size(video,vs);
video_stream_use_preview_video_window(video,two_windows);
video_stream_start(video,profile,
remote_ip,
remoteport,remoteport+1,
payload,
jitter,
ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get()));
session=video->session;
#else
printf("Error: video support not compiled.\n");
#endif
}
if (eq || ec){ /*read from stdin interactive commands */
char commands[128];
commands[127]='\0';
ms_sleep(1); /* ensure following text be printed after ortp messages */
if (eq)
printf("\nPlease enter equalizer requests, such as 'eq active 1', 'eq active 0', 'eq 1200 0.1 200'\n");
if (ec)
printf("\nPlease enter echo canceller requests: ec reset; ec <delay ms> <tail_length ms'\n");
while(fgets(commands,sizeof(commands)-1,stdin)!=NULL){
int active,freq,freq_width;
int delay_ms, tail_ms;
float gain;
if (sscanf(commands,"eq active %i",&active)==1){
audio_stream_enable_equalizer(audio,active);
printf("OK\n");
}else if (sscanf(commands,"eq %i %f %i",&freq,&gain,&freq_width)==3){
audio_stream_equalizer_set_gain(audio,freq,gain,freq_width);
printf("OK\n");
}else if (sscanf(commands,"eq %i %f",&freq,&gain)==2){
audio_stream_equalizer_set_gain(audio,freq,gain,0);
printf("OK\n");
}else if (strstr(commands,"dump")){
int n=0,i;
float *t;
ms_filter_call_method(audio->equalizer,MS_EQUALIZER_GET_NUM_FREQUENCIES,&n);
t=(float*)alloca(sizeof(float)*n);
ms_filter_call_method(audio->equalizer,MS_EQUALIZER_DUMP_STATE,t);
for(i=0;i<n;++i){
if (fabs(t[i]-1)>0.01){
printf("%i:%f:0 ",(i*pt->clock_rate)/(2*n),t[i]);
}
}
printf("\nOK\n");
}else if (sscanf(commands,"ec reset %i",&active)==1){
//audio_stream_enable_equalizer(audio,active);
//printf("OK\n");
}else if (sscanf(commands,"ec active %i",&active)==1){
//audio_stream_enable_equalizer(audio,active);
//printf("OK\n");
}else if (sscanf(commands,"ec %i %i",&delay_ms,&tail_ms)==2){
audio_stream_set_echo_canceller_params(audio,tail_ms,delay_ms,128);
// revisit: workaround with old method call to force echo reset
delay_ms*=8;
ms_filter_call_method(audio->ec,MS_FILTER_SET_PLAYBACKDELAY,&delay_ms);
printf("OK\n");
}else if (strstr(commands,"quit")){
break;
}else printf("Cannot understand this.\n");
}
}else{ /* no interactive stuff - continuous debug output */
rtp_session_register_event_queue(session,q);
while(cond)
{
int n;
for(n=0;n<100;++n){
#ifdef WIN32
MSG msg;
Sleep(10);
while (PeekMessage(&msg, NULL, 0, 0,1)){
TranslateMessage(&msg);
DispatchMessage(&msg);
}
#else
struct timespec ts;
ts.tv_sec=0;
ts.tv_nsec=10000000;
nanosleep(&ts,NULL);
#endif
#if defined(VIDEO_ENABLED)
if (video) video_stream_iterate(video);
#endif
}
ortp_global_stats_display();
if (session){
printf("Bandwidth usage: download=%f kbits/sec, upload=%f kbits/sec\n",
rtp_session_compute_recv_bandwidth(session)*1e-3,
rtp_session_compute_send_bandwidth(session)*1e-3);
parse_events(q);
}
}
}
printf("stopping all...\n");
if (audio) audio_stream_stop(audio);
#ifdef VIDEO_ENABLED
if (video) video_stream_stop(video);
#endif
ortp_ev_queue_destroy(q);
rtp_profile_destroy(profile);
}
void run_media_streams(int localport, const char *remote_ip, int remoteport, int payload, const char *fmtp, int jitter, bool_t ec, int bitrate)
{
AudioStream *audio=NULL;
#ifdef VIDEO_ENABLED
VideoStream *video=NULL;
#endif
RtpSession *session=NULL;
PayloadType *pt;
RtpProfile *profile=rtp_profile_clone_full(&av_profile);
OrtpEvQueue *q=ortp_ev_queue_new();
ms_init();
signal(SIGINT,stop_handler);
pt=rtp_profile_get_payload(profile,payload);
if (pt==NULL) {
printf("Error: no payload defined with number %i.",payload);
exit(-1);
}
if (fmtp!=NULL) payload_type_set_send_fmtp(pt,fmtp);
if (bitrate>0) pt->normal_bitrate=bitrate;
if (pt->type!=PAYLOAD_VIDEO) {
printf("Starting audio stream.\n");
audio=audio_stream_start(profile,localport,remote_ip,remoteport,payload,jitter, ec);
if (audio) session=audio->session;
} else {
#ifdef VIDEO_ENABLED
printf("Starting video stream.\n");
video=video_stream_new(localport, ms_is_ipv6(remote_ip));
video_stream_start(video,profile,
remote_ip,
remoteport,
payload,
jitter,
"/dev/video0");
session=video->session;
#else
printf("Error: video support not compiled.\n");
#endif
}
rtp_session_register_event_queue(session,q);
while(cond)
{
/* sleep until we receive SIGINT */
#ifdef WIN32
int n;
MSG msg;
for(n=0; n<100; ++n) {
Sleep(10);
while (PeekMessage(&msg, NULL, 0, 0,1)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
#else
sleep(1);
#endif
ortp_global_stats_display();
if (session) {
printf("Bandwidth usage: download=%f kbits/sec, upload=%f kbits/sec\n",
rtp_session_compute_recv_bandwidth(session)*1e-3,
rtp_session_compute_send_bandwidth(session)*1e-3);
parse_events(q);
}
}
printf("stoping all...\n");
if (audio) audio_stream_stop(audio);
#ifdef VIDEO_ENABLED
if (video) video_stream_stop(video);
#endif
ortp_ev_queue_destroy(q);
rtp_profile_destroy(profile);
}
/*
* This small program starts a video stream to either
* - read an H264 video track from mkv file and stream it out with RTP to specified destination
* - receive H264 RTP packets on a local port and record them into an mkv file
*/
int main(int argc, char *argv[]){
const char *command;
const char *file;
const char *ip;
int port;
VideoStream *stream;
RtpProfile *profile;
PayloadType *pt;
Mode mode = INVALID_MODE;
int local_port = 7778;
MSFactory *factory ;
MSMediaStreamIO io = MS_MEDIA_STREAM_IO_INITIALIZER;
int err;
/*parse command line arguments*/
if (argc<4) usage(argv[0]);
command = argv[1];
if (strcasecmp(command,"play")==0) mode = PLAY_MODE;
else if (strcasecmp(command, "record")==0) mode = RECORD_MODE;
else usage(argv[0]);
file = argv[2];
if (mode == PLAY_MODE){
ip = argv[3];
if (argc<5) usage(argv[0]);
port = atoi(argv[4]);
}else{
local_port = atoi(argv[3]);
ip = "127.0.0.1"; port = 9990; /*dummy destination address, we won't send anything here anyway*/
}
/*set a signal handler to interrupt the program cleanly*/
signal(SIGINT,stop_handler);
/*initialize mediastreamer2*/
factory = ms_factory_new_with_voip();
/*create the video stream */
stream = video_stream_new(factory, local_port, local_port+1, FALSE);
/*define its local input and outputs with the MSMediaStreamIO structure*/
if (mode == PLAY_MODE){
io.input.type = MSResourceFile;
io.input.file = file; /*the file we want to stream out via rtp*/
io.output.type = MSResourceFile;
io.output.file = NULL; /*we don't set a record file in PLAY_MODE, we just want the received video stream to be ignored, if something is received*/
}else{
io.input.type = MSResourceFile;
io.input.file = NULL; /*We don't want to send anything via RTP in RECORD_MODE*/
io.output.type = MSResourceFile;
io.output.file = file; /*The file to which we want to record the received video stream*/
}
/*define the RTP profile to use: in this case we just want to use H264 codec*/
profile = rtp_profile_new("My RTP profile");
pt = payload_type_clone(&payload_type_h264);
rtp_profile_set_payload(profile, payload_type_number, pt); /*we assign H264 to payload type number payload_type_number*/
media_stream_set_target_network_bitrate(&stream->ms, 500000); /*set a target IP bitrate in bits/second */
/*By default, the VideoStream will show up a display window where the received video is played, with a local preview as well.
* If you don't need this, assign (void*)-1 as window id, which explicitely disable the display feature.*/
/*video_stream_set_native_window_id(stream, (void*)-1);*/
/*start the video stream, given the RtpProfile and "io" definition */
err = video_stream_start_from_io(stream, profile, ip, port, ip, port+1, payload_type_number, &io);
if (err !=0 ){
fprintf(stderr,"Could not start video stream.");
goto end;
}
/*Register an event handler on the player to be notified of end of file*/
ms_filter_add_notify_callback(stream->source, on_end_of_play, NULL, FALSE);
/*program's main loop*/
while (active){
/*handle video stream background activity. This is non blocking*/
video_stream_iterate(stream);
/*process event callbacks*/
ms_event_queue_pump(ms_factory_get_event_queue(factory));
ms_usleep(50000); /*pause 50ms to avoid busy loop*/
}
end:
/*stop and destroy the video stream object*/
if (stream) video_stream_stop(stream);
/*free the RTP profile and payload type inside*/
if (profile) rtp_profile_destroy(profile);
ms_factory_destroy(factory);
return err;
}
