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<DIV><SPAN class=220270108-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Sorry, it should be "it is not multicasting since it is not a multicast
address.</FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
live-devel-bounces@ns.live.com [mailto:live-devel-bounces@ns.live.com]<B>On
Behalf Of </B>Dixon Siu<BR><B>Sent:</B> Friday, May 07, 2004 4:42
PM<BR><B>To:</B> LIVE.COM Streaming Media - development &
use<BR><B>Subject:</B> RE: [Live-devel] Some stupid
questions<BR><BR></FONT></DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Hi,</FONT></SPAN></DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>When you use RTSP without specific indication, you are unicasting
through UDP. As you indicated from your email, the user types in the URL of
the machine. Therefore, it is multicasting since it is not a
multicast address. Maybe you want to check if any firewall (either
the server network or the LAN) is blocking UDP
access.</FONT></SPAN></DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Sorry that I can't give much info.</FONT></SPAN></DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=757253707-07052004><FONT face="ＭＳ Ｐゴシック" color=#0000ff
size=2>Dixon Siu</FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
live-devel-bounces@ns.live.com [mailto:live-devel-bounces@ns.live.com]<B>On
Behalf Of </B>Riccardo Rosapepe<BR><B>Sent:</B> Saturday, May 08, 2004 1:12
AM<BR><B>To:</B> live-devel@ns.live.com<BR><B>Subject:</B> [Live-devel] Some
stupid questions<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3>Dear Mr.
Finlayson,<BR><BR>Thank you for the excellent job that you did with live.com
streaming libraries.<BR><BR>I implemented a streaming application on the top
of testMPEG4VideoStreamer test program.<BR>My app grabs video from an usb
device then encodes the grabbed frame in mpeg4 format ( using ffmpeg 0.4.8
codec ) and streams it over the network.<BR>I wrote "VideoDeviceSource" a
"FramedSource" subclass that delivers video frames to the RTPSink, following
your suggestions in the faq and after a little debugging everything went
ok.<BR><BR>Now, there are 2 different scenarios:<BR><BR>1) When the
streaming server ( my application ) is on a LAN i can stream multicast and
play stream on a client machine on the same LAN using VLC or Quicktime and
the url in the format rtsp://url_of_the_machine:7070/testStream ...the
players can play the stream very well and everything is fine!<BR><BR>2) When
the streaming server ( my application ) is NOT a LAN but on a machine that
has a gprsmodem with a SIM card that, connecting via ppp bridge obtains an
url from an internet provider , VLC or Quicktime are not able to play the
url in the format rtsp://url_given_from_provider:7070/testStream
.<BR>Why?<BR><BR>Consider that the machine with gprs modem is a linux box
and, after obtained an url from a provider ( e.g.: 217.40.15.218) i can open
an ssh tunnel from a machine on the LAN ( 192.168.1.55 ) to this machine
just typing ssh root@url_given_from_provider and the command succeeds. Maybe
because ssh services uses simple tcp? <BR><BR>Should i stream using unicast?
<BR>If yes.. how? How can i quickly change my program? Your suggestions in
the faq <BR><BR>--------"In "test*Streamer.cpp", change
"destinationAddressStr" to the (unicast) IP address of the intended
destination. In the corresponding "test*Receiver.cpp", change
"sessionAddressStr" to "0.0.0.0". ------<BR><BR>don't seem to work. Should i
open url in vlc like rtsp://0.0.0.0 ?<BR><BR>Please help me, i'm stuck with
it and in my company we desperately need to stream using a wireless
box.<BR><BR>p.S.: When i'll find a solution there is another question. GPRS
bandwidth is very low ( 12 kbits/s )<BR>My actual settings are: size:
176x144, fps :5, qmin = 3; qmax = 31; bitrate = 4. Is there any other
improvement that i can apply to achieve better performance?<BR><BR>p.p.s:
Why realPlayer( version 10 ) doesn't read streams from
testMPEG1or2VideoStreamer ? <BR><BR>Thanks in advice for your
help.<BR><BR>Riccardo Rosapepe</FONT><BR><BR><BR><BR><BR>
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