[Live-devel] openRTSP complain about mpeg4-generic mode

Thu Oct 9 07:48:12 PDT 2014

            Hi Ross,

Trying to get an audio stream with openRTSP reports the error MPEG4GenericRTPSource Warning: Unknown or unsupported "mode": AAC-hbr.

I checked the code of MPEG4GenericRTPSource that check for "aac-hbr" :

     if (mode == NULL<http://www.grid.unina.it/%7Evollero/resources/doc_live/html/UsageEnvironment_8hh.html#a0> || strcmp(mode, "aac-hbr") != 0) {

       envir() << "MPEG4GenericRTPSource Warning: Unknown or unsupported \"mode\": "

     // Check for a "mode" that we don't yet support: //#####

               << mode << "\n";

     }
However in MPEG4GenericRTPSink, the mode is compared in lower case.
In the RFC (https://www.ietf.org/rfc/rfc3640.txt) it seems to be AAC-hbr, but I did not find if the mode is supposed to be case sensitive or not ?

This doesn't seems to have more impact that printing an error, but perhaps I miss something.

Thanks for your support.

Best Regards,

            Michel.

P.S here after the complete openRTSP output :

Opening connection to 186.20.60.243, port 554...
...remote connection opened
Sending request: OPTIONS rtsp://186.20.60.243:554/s1.sdp RTSP/1.0
CSeq: 2
User-Agent: openRTSP (LIVE555 Streaming Media v2014.02.19)

Received 106 new bytes of response data.
Received a complete OPTIONS response:
RTSP/1.0 200 OK
CSeq: 2
Public: DESCRIBE, SETUP, PLAY, PAUSE, TEARDOWN, SET_PARAMETER, GET_PARAMETER

Sending request: DESCRIBE rtsp://186.20.60.243:554/s1.sdp RTSP/1.0
CSeq: 3
User-Agent: openRTSP (LIVE555 Streaming Media v2014.02.19)
Accept: application/sdp

Received 798 new bytes of response data.
Received a complete DESCRIBE response:
RTSP/1.0 200 OK
CSeq: 3
Content-Base: rtsp://186.20.60.243:554/s1.sdp/
Content-Type: application/sdp
Content-Length: 670

v=0
o=RTSP 1412783906 133347 IN IP4 0.0.0.0
s=RTSP server
c=IN IP4 0.0.0.0
t=0 0
a=charset:Shift_JIS
a=range:npt=0-
a=control:*
a=etag:1234567890
m=video 0 RTP/AVP 96
b=AS:56
a=rtpmap:96 H264/90000
a=control:trackID=1
a=fmtp:96 packetization-mode=1;profile-level-id=64402a;sprop-parameter-sets=J2RAKqwsagHgCJ+WagoMCoAAAAMAgAAAHgI=,KO4G4sA=
m=audio 0 RTP/AVP 97
a=control:trackID=2
a=rtpmap:97 mpeg4-generic/8000/0
a=fmtp:97 streamtype=5;profile-level-id=15;mode=AAC-hbr;config=1588;SizeLength=13;IndexLength=3;IndexDeltaLength=3;CTSDeltaLength=0;DTSDeltaLength=0
m=application 0 RTP/AVP 107
a=rtpmap:107 vnd.onvif.metadata/90000
a=control:trackID=3

Opened URL "rtsp://186.20.60.243:554/s1.sdp", returning a SDP description:
v=0
o=RTSP 1412783906 133347 IN IP4 0.0.0.0
s=RTSP server
c=IN IP4 0.0.0.0
t=0 0
a=charset:Shift_JIS
a=range:npt=0-
a=control:*
a=etag:1234567890
m=video 0 RTP/AVP 96
b=AS:56
a=rtpmap:96 H264/90000
a=control:trackID=1
a=fmtp:96 packetization-mode=1;profile-level-id=64402a;sprop-parameter-sets=J2RAKqwsagHgCJ+WagoMCoAAAAMAgAAAHgI=,KO4G4sA=
m=audio 0 RTP/AVP 97
a=control:trackID=2
a=rtpmap:97 mpeg4-generic/8000/0
a=fmtp:97 streamtype=5;profile-level-id=15;mode=AAC-hbr;config=1588;SizeLength=13;IndexLength=3;IndexDeltaLength=3;CTSDeltaLength=0;DTSDeltaLength=0
m=application 0 RTP/AVP 107
a=rtpmap:107 vnd.onvif.metadata/90000
a=control:trackID=3

Created receiver for "video/H264" subsession (client ports 51432-51433)
MPEG4GenericRTPSource Warning: Unknown or unsupported "mode": AAC-hbr
Created receiver for "audio/MPEG4-GENERIC" subsession (client ports 49614-49615)
Created receiver for "application/VND.ONVIF.METADATA" subsession (client ports 58422-58423)
Sending request: SETUP rtsp://186.20.60.243:554/s1.sdp/trackID=1 RTSP/1.0
CSeq: 4
User-Agent: openRTSP (LIVE555 Streaming Media v2014.02.19)
Transport: RTP/AVP;unicast;client_port=51432-51433

Received 121 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 200 OK
CSeq: 4
Session: 12835717
Transport: RTP/AVP;unicast;client_port=51432-51433;server_port=8000-8001

Setup "video/H264" subsession (client ports 51432-51433)
Sending request: SETUP rtsp://186.20.60.243:554/s1.sdp/trackID=2 RTSP/1.0
CSeq: 5
User-Agent: openRTSP (LIVE555 Streaming Media v2014.02.19)
Transport: RTP/AVP;unicast;client_port=49614-49615
Session: 12835717

Received 121 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 200 OK
CSeq: 5
Session: 12835717
Transport: RTP/AVP;unicast;client_port=49614-49615;server_port=8002-8003

Setup "audio/MPEG4-GENERIC" subsession (client ports 49614-49615)
Sending request: SETUP rtsp://186.20.60.243:554/s1.sdp/trackID=3 RTSP/1.0
CSeq: 6
User-Agent: openRTSP (LIVE555 Streaming Media v2014.02.19)
Transport: RTP/AVP;unicast;client_port=58422-58423
Session: 12835717

Received 121 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 200 OK
CSeq: 6
Session: 12835717
Transport: RTP/AVP;unicast;client_port=58422-58423;server_port=8004-8005

Setup "application/VND.ONVIF.METADATA" subsession (client ports 58422-58423)
Created output file: "video-H264-1"
Created output file: "audio-MPEG4-GENERIC-2"
Created output file: "application-VND.ONVIF.METADATA-3"
Sending request: PLAY rtsp://186.20.60.243:554/s1.sdp/ RTSP/1.0
CSeq: 7
User-Agent: openRTSP (LIVE555 Streaming Media v2014.02.19)
Session: 12835717
Range: npt=0.000-

Received 324 new bytes of response data.
Received a complete PLAY response:
RTSP/1.0 200 OK
CSeq: 7
Session: 12835717
RTP-Info: url=rtsp://186.20.60.243:554/s1.sdp//trackID=1;seq=0;rtptime=0;ssrc=12835717,url=rtsp://186.20.60.243:554/s1.sdp//trackID=2;seq=0;rtptime=0;ssrc=12835717,url=rtsp://186.20.60.243:554/s1.sdp//trackID=3;seq=0;rtptime=0;ssrc=12835717
Range: npt=0-
RTCP-Interval: 250

Started playing session
Receiving streamed data (signal with "kill -HUP 18378" or "kill -USR1 18378" to terminate)...

[@@ THALES GROUP INTERNAL @@]

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.live555.com/pipermail/live-devel/attachments/20141009/bd19d828/attachment-0001.html>