[Live-devel] trying to capture an .mp4 with openRTSP

John Zorko jmzorko at mac.com
Wed Aug 20 18:24:56 PDT 2008


Hello, all ...

I'm trying to capture an MPEG4 RTP stream (sent by QTSS via QuickTime  
Broadcaster) to a file using openRTSP.  The problem i'm seeing is  
that, when I try to open this file, the system (Mac OSX 10.5.4) tells  
me that it's not a movie file.  My openRTSP command looks like this:

pugsleypoo:testProgs jmzorko$ ./openRTSP -4 -w 320 -h 240 -f 30 rtsp://10.0.1.199:554/pugscam.sdp 
  > pugscam.mp4

... and the QuickTime Broadcaster instance is indeed set to those  
parameters (width 320, height 240, 30 fps).  I've read the FAQ, but  
still can't get the generated file to open.  The SDP description  
returned by openRTSP follows:

Opened URL "rtsp://10.0.1.199:554/pugscam.sdp", returning a SDP  
description:
v=0
o=- 438 2625243995 IN IP4 127.0.0.0
s=QuickTime
c=IN IP4 0.0.0.0
t=0 0
a=range:npt=now-
a=control:*
m=audio 0 RTP/AVP 96
b=AS:16
a=3GPP-Adaptation-Support:1
a=rtpmap:96 mpeg4-generic/11025/1
a=fmtp:96 profile-level-id=15;mode=AAC- 
hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1508
a=mpeg4-esid:101
a=x-bufferdelay:5.000000
a=control:trackID=1
m=video 0 RTP/AVP 97
b=AS:220
a=3GPP-Adaptation-Support:1
a=rtpmap:97 MP4V-ES/90000
a=fmtp:97 profile-level- 
id 
= 
1 
;config=000001B0F3000001B50EE040C0CF0000010000000120008440FA285020F0A31F
a=mpeg4-esid:201
a=cliprect:0,0,240,320
a=framesize:97 320-240
a=x-bufferdelay:5.000000
a=control:trackID=2

... what am I doing wrong?

Regards,

John

Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com











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