Re: [Linphone-developers] Need Help for streaming RTP - iOS

[武强]

hi,

    These code could be a demo to streaming video over rtp..

    V4L2---->H264---->RTP PACKET--->NET

    

    You can use ffplay or vlc to decode and dispaly the stream.

SDP:

m=video 6060 RTP/AVP 96

a=rtpmap:96 H264/90000

a=fmtp:96 packetization-mode=1; profile-level-id=64001E;

#include "mediastreamer2/mediastream.h"

#include "mediastreamer2/mseventqueue.h"

#include <signal.h>

static int active = 1;

/*handler called when pressing C-c*/

static void stop_handler(int signum){

    active--;

    if (active<0) {

        ms_error("Brutal exit (%d)\n", active);

        exit(-1);

    }

}

const int payload_type_number = 96;

int main(int argc, char *argv[]){

    const char *ip;

    int remote_port = 6060;

    int local_port = 6050;

    MSWebCam *mWebCam = NULL;

    VideoStream *stream;

    RtpProfile *profile;

    PayloadType *pt;

    OrtpEvQueue *q = NULL;

    RtpSession *session = NULL;

    int err;

    ortp_init();

    ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);

    ms_init();

    q = ortp_ev_queue_new();

    ip = "127.0.0.1";

    //ip = "172.16.14.129";

    if(argc > 1)

    {

        local_port = atoi(argv[1]);

    }

    /*set a signal handler to interrupt the program cleanly*/

    signal(SIGINT,stop_handler);

    /*create the video stream */

    stream = video_stream_new(local_port, local_port+1, FALSE);

    video_stream_set_fps(stream,25.0);

    video_stream_set_sent_video_size(stream, MS_VIDEO_SIZE_VGA);

    //stream->dir = MediaStreamRecvOnly;

    mWebCam = ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),"V4L2: /dev/video1");

    profile = "" RTP profile");

    pt = payload_type_clone(&payload_type_h264);

    rtp_profile_set_payload(profile, payload_type_number, pt);

    /*set a target IP bitrate in bits/second */

    media_stream_set_target_network_bitrate(&stream->ms, 8*1024*20);

    /*video_stream_set_native_window_id(stream, (void*)-1);*/

    err = video_stream_start(stream, profile, ip, remote_port, ip, remote_port+1, payload_type_number, 0, mWebCam);

    if (err !=0 ){

        fprintf(stderr,"Could not start video stream.");

        goto end;

    }

    session = video_stream_get_rtp_session(stream);

    rtp_session_register_event_queue(session, q);

    /*program's main loop*/

    while (active)

    {

        /*handle video stream background activity. This is non blocking*/

        video_stream_iterate(stream);

        /*pause 50ms to avoid busy loop*/

        ms_usleep(50000);

    }

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);

    return err;

}

From: "Sreejith N <address@hidden>"

To: "linphone-developers <address@hidden>"

CC:

Sent: 2016-11-29 14:50

Subject: [Linphone-developers] Need Help for streaming RTP - iOS

Hey,

Is there an example or tutorial that I can follow to do a RTP stream on iPhone? I could only find this API list https://fossies.org/dox/linphone-3.10.2/group__video__stream__api.html

Thanks in advance. 

--

Regards,

Sreejith

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