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<P>Hello,</P>
<P> I have the same problem with the 0.8.6 version. But using the 0.8.5 and adding to the code the changeset 15736, I can stream h264. And using as client the 0.8.6 I get the message "waiting for SPS.</P>
<P>Please let me know if you find the way.</P>
<P>Good luck</P>
<P>Araceli<FONT color=#008000 size=2></P></FONT>
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<DIV></DIV>From: <I>"jogging song" <joggingsong@gmail.com></I><BR>Reply-To: <I>vlc@videolan.org</I><BR>To: <I>vlc@videolan.org</I><BR>Subject: <I>[vlc] Re: vlc stop when playing H.264 RTP stream</I><BR>Date: <I>Fri, 9 Mar 2007 21:24:27 +0800</I><BR>
<DIV></DIV><BR>I have saved the RTP payloads in file and vlc can play the file without problem. So the RTP payloads is ok.<BR>But when payloads are sent to vlc in RTP packets, vlc fails to play the stream.<BR>Now the stream consists of one I frame and 299 P frames. We find that if I frame is repeated in the stream, vlc encounters the second
<DIV></DIV><BR>I frame and will play normally.<BR><BR>First, i think the sps and pps in the sdp file is different from the sps and pps in rtp packet streams. vlc receives the sps and pps again and think the new ones are used to update the old ones. But I review the sps and pps in sdp file and am sure they are correct.
<DIV></DIV><BR><BR>And I have downloaded the vlc source code from the websites and find vlc is very complex to understand and it is difficult to find the process for RTP packet operations.<BR><BR>Thanks<BR>jogging<BR><BR>
<DIV><SPAN class=gmail_quote></DIV>On 3/9/07, <B class=gmail_sendername>Chris Dobbs</B> <<A href="mailto:chris_dobbs@dobbscr.karoo.co.uk">chris_dobbs@dobbscr.karoo.co.uk</A>> wrote:</SPAN>
<BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex">
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<DIV><FONT face=Arial size=2>Can u verify without using VLC that your H264 </DIV>frames are ok? i.e play it from file or something. VLC will play h264 from file
<DIV></DIV>so maby try that first.</FONT>
<DIV></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>Your SDP looks ok although I'm not familiar </DIV>with the specific h263 fmtp options, try just having</FONT>
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<DIV></DIV>
<DIV><FONT face=Arial size=2>fmtp:96</FONT></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>your SDP states you are streaming to port 1100 so </DIV>make sure your streamer is in fact doing this (obvious I know
<DIV></DIV>but...)</FONT>
<DIV></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>Run up ethereal and capture the first couple of </DIV>packet and see if they look ok. Check that your RTP header payload type is in
<DIV></DIV>fact 96 and not the non-dynamic one (forget which number this is for
<DIV></DIV>H264...35?)</FONT>
<DIV></DIV><SPAN class=sg>
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<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV><FONT face=Arial size=2>-Chris</FONT></DIV></SPAN>
<DIV><SPAN class=e id=q_1113691a4c4d2fc8_2></DIV>
<BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV></DIV>
<DIV style="BACKGROUND: rgb(228,228,228) 0% 50%; FONT: 10pt arial"></DIV><B>From:</B>
<DIV></DIV> <A title=joggingsong@gmail.com href="mailto:joggingsong@gmail.com">jogging
<DIV></DIV> song</A>
<DIV></DIV>
<DIV></DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=vlc@videolan.org href="mailto:vlc@videolan.org"></DIV>vlc@videolan.org</A>
<DIV></DIV>
<DIV></DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, March 09, 2007 2:54 </DIV>AM
<DIV></DIV>
<DIV></DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [vlc] Re: vlc stop when playing </DIV> H.264 RTP stream
<DIV></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2></FONT><FONT face=Arial size=2></FONT><BR></DIV>Thanks, Chris<BR>
<DIV></DIV> Payload type in RTP header is 96.<BR> Before it is about to receive RTP
<DIV></DIV> stream, vlc need a SDP. I'm not sure whether the sdp file is
<DIV></DIV> right.<BR>v=0<BR>m=video 1100 RTP/AVP 96<BR>b=AS:247<BR>a=rtpmap:96 H264/90000
<DIV></DIV> <BR>a=fmtp:96 packetization-mode=1;profile-level-id=42001E;<BR><BR>I read the
<DIV></DIV> RFC3984, and change it to the following.<BR><BR>v=0<BR>m=video 1100 RTP/AVP
<DIV></DIV> 96<BR>b=AS:247<BR>a=rtpmap:96 H264/90000<BR>a=fmtp:96
<DIV></DIV> packetization-mode=0;profile-level-id=42001E;sprop-parameteter-sets=Z0IAHpZ0Ficg,aM44gA==
<DIV></DIV> <BR><BR>It still doesn't work.<BR><BR>The RTP stream consists of RTP of 300
<DIV></DIV> frames. And only the first frame is an IDR frame(I frame), which has a sps and
<DIV></DIV> pps.<BR>All other frame is P frame.<BR><BR>But VLC stops after printing the
<DIV></DIV> following things: <BR>packetizer_h264 debug: found NAL_SPS<BR>packetizer_h264
<DIV></DIV> debug: found NAL_PPS <BR>I don't know why it stops after recognizing sps and
<DIV></DIV> pps.<BR><BR><BR>And i think sps and pps already are in sdp file, so I don't
<DIV></DIV> send sps and pps.<BR>Vlc will print "waiting for
<DIV></DIV> sps".<BR><BR>Thanks<BR>jogging<BR><BR><BR>
<DIV></DIV>
<DIV><SPAN class=gmail_quote>On 3/8/07, <B class=gmail_sendername><A href="mailto:chris.2.dobbs@bt.com">chris.2.dobbs@bt.com</A></B> <<A href="mailto:chris.2.dobbs@bt.com"> </DIV>chris.2.dobbs@bt.com</A> > wrote:</SPAN>
<DIV></DIV>
<BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex">
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<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>Not sure </DIV> what that erro msg means but here are a f</FONT></SPAN><SPAN><FONT face=Arial color=#0000ff size=2>ew quick things to
<DIV></DIV>check:</FONT></SPAN>
<DIV></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>1. Are </DIV> you setting the RTP payload to 96 in your stream?</FONT></SPAN>
<DIV></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>2. Are </DIV> you setting correct timestamp framing intervals in your stream , think u
<DIV></DIV> need to increment rtp timestamp by 30Ms every time u start sending a new
<DIV></DIV> frame. Keep this timestamp constant for frames spanning several
<DIV></DIV> packets.</FONT></SPAN>
<DIV></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>3. Are </DIV> you keeping the RTP SSRC at constant value all the way
<DIV></DIV> through?</FONT></SPAN>
<DIV></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>Can you </DIV> post the first few packets here?- use ethereal or something to capture
<DIV></DIV> and I'll take a look.</FONT></SPAN>
<DIV></DIV>
<DIV></DIV>
<DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>-Chris</FONT></SPAN></DIV><BR>
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<DIV lang=en-us dir=ltr align=left></DIV>
<HR>
<DIV></DIV> <FONT face=Tahoma size=2><B>From:</B> <A href="mailto:vlc-bounce@videolan.org">vlc-bounce@videolan.org</A> [mailto:<A href="mailto:vlc-bounce@videolan.org">
<DIV></DIV>vlc-bounce@videolan.org</A>] <B>On Behalf Of </B>jogging
<DIV></DIV> song<BR><B>Sent:</B> 08 March 2007 12:52<BR><B>To:</B> <A href="mailto:vlc@videolan.org">vlc@videolan.org</A><BR><B>Subject:</B> [vlc] vlc stop when
<DIV></DIV> playing H.264 RTP stream<BR></FONT><BR>
<DIV></DIV>
<DIV></DIV>
<DIV><SPAN></DIV>
<DIV></DIV>hi,<BR> Now I use VLC to play H.264 RTP
<DIV></DIV> stream.I encounter some problems. Before it is about to receive RTP
<DIV></DIV> streams, VLC read a SDP like this,<BR>v=0<BR>m=video 1100 RTP/AVP
<DIV></DIV> 96<BR>b=AS:247<BR>a=rtpmap:96 H264/90000<BR>a=fmtp:96
<DIV></DIV> packetization-mode=1;profile-level-id=42001E;<BR><BR>Then I send RTP
<DIV></DIV> packets, and VLC recieve them.But VLC stops after printing the following
<DIV></DIV> things:<BR>packetizer_h264 debug: found NAL_SPS<BR>packetizer_h264 debug:
<DIV></DIV> found NAL_PPS <BR><BR>Can anyone help me?Thanks<BR>Best
<DIV></DIV> Regards<BR>jogging<BR><BR><BR><BR></SPAN>
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<DIV></DIV><BR></FONT></BLOCKQUOTE></div><br clear=all><hr>Recibe ofertas de empleo adaptadas a tu perfil. <a href="http://g.msn.com/8HMBESES/2752??PS=47575" target="_top">Introduce tu CV en MSN Empleo.</a> </html>
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