How to specify the local video port in rtp package

[jerry007]

Hi all,

I am using libvlc to capture video stream and send via rtp in my application. Through the following command:
sout=#duplicate{dst=display,dst={transcode{venc=x264,vcodec=h264,vb=120}:rtp{mux=ts,dst=192.168.0.3,port=1234}}}
I can set the remote IP and port as: 192.168.0.3:1234
And I want to set the special local rtp port for libvlc, the send port for video stream using by libvlc. I have try the following :
sout=#duplicate{dst=display,dst={transcode{venc=x264,vcodec=h264,vb=120}:rtp{mux=ts,dst=192.168.0.3,port=1234,portvideo=8888}}}
But it can not make sense. Can somebody tell me how to set ?
Thanks in advance!


xutm

[Jean-Baptiste Kempf]

port-audio and port-video, not portvideo and portaudio

[jerry007]

Hi j-b,

Thank you for your reply!
Exactly I also try the command:
:sout=#duplicate{dst=display,dst={transcode{venc=x264,vcodec=h264,vb=120}:rtp{mux=ts,dst=127.0.0.1,port=1235,port-video=8888}}}
the log is following:
main debug: set config option: sout-rtp-mux to ts
main debug: set config option: sout-rtp-dst to 127.0.0.1
main debug: set config option: sout-rtp-port to 1235
main debug: set config option: sout-rtp-port-video to 8888
...
main debug: net: connecting to [127.0.0.1]:1235
main debug: net: connecting to [127.0.0.1]:1236 from [127.0.0.1]:5759

So I dont think the local video port has been setted to 8888, instead it has been setted as 5759
Am i right? I am sorry if I am wrong.

xutm

[Rémi Denis-Courmont]

Selecting the source port is not implemented.

[jerry007]

Hi Rémi Denis-Courmont,

Thank you very much! So what isthe attribute "port-video" doing for ? And can you show me how to set the source video port?

xutm

[Rémi Denis-Courmont]

port-video sets the destination port of the (first) video elementary stream.

[jerry007]

Hi Rémi Denis-Courmont,

Now i modify the corresponding method __net_ConnectDgram:
Before connect to the des IP, I call bind to set the local video rtp port . And through the following:
#define MYPORT 9999
...
{
struct sockaddr_in addr;

memset (&addr, 0, sizeof (addr));

addr.sin_family = AF_INET;
addr.sin_port = htons(MYPORT);
addr.sin_addr.s_addr = INADDR_ANY;
//bzero(&(addr.sin_zero));

if (bind(fd, (struct sockaddr*)&addr, sizeof(struct sockaddr)) < 0)
msg_Dbg( p_this, "......... return no 0 ");
else
msg_Dbg( p_this, ".......... return 0 and bind success......");
}

if( connect( fd, ptr->ai_addr, ptr->ai_addrlen ) == 0 )
{
/* success */
i_handle = fd;

break;
}

I can set the local video rtp port to 9999

But now i found a strange problem. I modify the file modules/stream_out/rtp.c , I want to send attribute (from my command line in my application) to the method __net_ConnectDgram , and i execute "make" again, but i found there is no new libvlc.dll. Can you tell me why this happen?