RE: [Linphone-developers] oRTP MPEG4 video streaming

[Francesco Andrisani]

I see the warning for each packets.
With ethereal i see [Payload :Unknown (96)].
You suggest to recompile oRTP with another otions?

Regards



-----Original Message-----
From: Simon Morlat [mailto:address@hidden]
Sent: Wed 11/15/2006 11:42 AM
To: address@hidden
Cc: Francesco Andrisani; address@hidden
Subject: Re: [Linphone-developers] oRTP MPEG4 video streaming

Hello,

Your code seems correct. Can you modify the code in rtpsession.c so that we
can see what is the payload type of the incoming stream :
in rtp_session_recv_with_ts:

if (payload==NULL){
                ortp_warning("rtp_session_recv_with_ts: unable to recv an unsupported
payload (%i)",session->recv_pt);
                if (mp!=NULL) freemsg(mp);
                return -1;
        }

Does the warning happens only once, or for every packet ?
I see two problems:
- the camera actually sends a RTP packet with a payload type different from 96
- oRTP has been compiled with bad endianness option (it would be a bug), then
decoding of RTP header is wrong.

Simon

Le lundi 13 novembre 2006 17:37, Francesco Andrisani a écrit :
> I've added a new profile to my application, but i've only a warning now.
>
> RTP: Succesfully setup remote peer to 192.168.198.15 port 50208
> ortp-warning-rtp_session_recv_with_ts: unable to recv an unsupported
> payload.
>
> My code (a piece) is:
>
> ortp_init();
>    ortp_scheduler_init();
>
>    recvsession=rtp_session_new(RTP_SESSION_RECVONLY);
>
>    if (recvsession  == NULL)
>    {
>         printf("RTP FATAL: Unable to allocate new session.");
>         return -1;
>    }
>    rtp_session_set_scheduling_mode (recvsession, 1);
>
>    rtp_session_set_blocking_mode (recvsession, 0);
>
>
>     m_videoMpeg4 = rtp_profile_new("AV profile + MPEG4 Video");
>     rtp_profile_set_payload(m_videoMpeg4,0,&payload_type_pcmu8000);
>     rtp_profile_set_payload(m_videoMpeg4,1,&payload_type_lpc1016);
>     rtp_profile_set_payload(m_videoMpeg4,3,&payload_type_gsm);
>     rtp_profile_set_payload(m_videoMpeg4,4,&payload_type_g7231);
>     rtp_profile_set_payload(m_videoMpeg4,8,&payload_type_pcma8000);
>     rtp_profile_set_payload(m_videoMpeg4,18,&payload_type_g729);
>     rtp_profile_set_payload(m_videoMpeg4,31,&payload_type_h261);
>     rtp_profile_set_payload(m_videoMpeg4,32,&payload_type_mpv);
>     rtp_profile_set_payload(m_videoMpeg4,96,&payload_type_mp4v);
>
>     rtp_session_set_profile(recvsession, m_videoMpeg4);
>
>
>
>    rtp_session_set_jitter_compensation (recvsession, 60);
>
>    ret = rtp_session_set_local_addr (
>                         recvsession,
>                         "192.168.195.16",
>                         20000
>                         );
>    ret = rtp_session_set_remote_addr (
>                         recvsession,
>                         "192.168.198.13",
>                         atoi(serverPort1)
>                         );
>    if (ret != 0)
>    {
>         printf("\nRTP: ERROR: Unable to set peer to 192.168.198.15 port
> %d",atoi(serverPort1)); return -1;
>    }
>    else
>         printf("\nRTP: Succesfully setup remote peer to 192.168.198.15 port
> %d",atoi(serverPort1)); data_from_rtp = (char *) malloc (1500);
>    have_more = 1;
>
>    while (have_more)
>    {
>         printf("\nin while");
>         recvd_bytes = rtp_session_recv_with_ts (
>                                 recvsession,
>                                 data_from_rtp,
>                                 1500,
>                                 timestamp,
>                                 &have_more);
>         printf("\nBytes letti: %d",recvd_bytes);
>
>                 if (have_more != 0)
>                         printf("\nRTP Warning, have more !");
>                  else
>                         timestamp += recvd_bytes;
>
>                 if (recvd_bytes > 0)
>                 {
>                         printf("\nWriting to file!");
>                         n =
> fwrite(data_from_rtp,sizeof(data_from_rtp),n,outfile); printf("\nBytes
> scritti: %d",n);
>                 }
>    }
>
>   fclose(outfile);
>   free (data_from_rtp);
>
> Is my code wrong?
>
> Thanks
>
>
>
> -----Original Message-----
> From: Emmanuel Buu [mailto:address@hidden]
> Sent: Mon 11/13/2006 5:23 PM
> To: Francesco Andrisani; address@hidden
> Subject: Re: [Linphone-developers] oRTP MPEG4 video streaming
>
> Ah, I ran into the same issue with another Cam. You have to create a new
> profile:
>
>     m_videoMpeg4 = rtp_profile_new("AV profile + MPEG4 Video");
>     rtp_profile_set_payload(m_videoMpeg4,0,&payload_type_pcmu8000);
>     rtp_profile_set_payload(m_videoMpeg4,1,&payload_type_lpc1016);
>     rtp_profile_set_payload(m_videoMpeg4,3,&payload_type_gsm);
>     rtp_profile_set_payload(m_videoMpeg4,4,&payload_type_g7231);
>     rtp_profile_set_payload(m_videoMpeg4,8,&payload_type_pcma8000);
>     rtp_profile_set_payload(m_videoMpeg4,18,&payload_type_g729);
>     rtp_profile_set_payload(m_videoMpeg4,31,&payload_type_h261);
>     rtp_profile_set_payload(m_videoMpeg4,32,&payload_type_mpv);
>     rtp_profile_set_payload(m_videoMpeg4,96,&payload_type_mp4v);
>
> Beware, the payload type you specify in the last line should match the
> payload type actually sent by your cam (use a Etheral capture to check).
>
> Then assign this profile to your session :
>
>     rtp_session_set_profile(s, m_videoMpeg4);
>
>
> On Mon, 13 Nov 2006 17:07:13 +0100, Francesco Andrisani wrote
>
> > Hi all,
> >  i've a problem when i try to receive a rtp flow fron an AXIS camera.
> >  I use oRTP and in output of my code i have the follow error:
> >
> >  RTP: Succesfully setup remote peer to 192.168.198.15 port 50196
> >  RTP: Set payload type to 2
> >
> >  ortp-warning-rtp_session_ts_to_t: use of unsupported payload type .
> >  ortp-warning-rtp_session_recv_with_ts: unable to recv an
> > unsupported payload.
> >
> >  Read Bytes: -1
> >
> >  I don't know if i set wrong payload type.
> >
> >  Regards