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<title>Re: [Live-devel] NAL header bits</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Hello Ross,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Thanks for your below. I’m
trying to understand how the rtp + h264 works, but it’s kind of confusing
because im not good at C. I hope you don’t mind if I ask about the
de-packetized algorithm.<o:p></o:p></span></font></p>
<pre><font size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'><o:p> </o:p></span></font></pre><pre><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>Which function is the one that splits the RTP header? And which define the type of NAL Unit (NAL header)?<o:p></o:p></span></font></pre><pre><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'><o:p> </o:p></span></font></pre><pre><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>I also don’t understand when I have to use the sprop-parameter I get in th sdp message.<o:p></o:p></span></font></pre><pre><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'><o:p> </o:p></span></font></pre><pre><font
size=2 color=navy face=Arial><span lang=EN-GB style='font-size:10.0pt;
font-family:Arial;color:navy'>Again, thanks for your help!!!<o:p></o:p></span></font></pre>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>De:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
live-devel-bounces@ns.live555.com [mailto:live-devel-bounces@ns.live555.com] <b><span
style='font-weight:bold'>En nombre de </span></b>Ross Finlayson<br>
<b><span style='font-weight:bold'>Enviado el:</span></b> jueves, 28 de enero de
2010 16:23<br>
<b><span style='font-weight:bold'>Para:</span></b> LIVE555 Streaming Media -
development & use<br>
<b><span style='font-weight:bold'>Asunto:</span></b> Re: [Live-devel] NAL
header bits</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Im a newbie. Im trying to decode h264 NAL header, I skip
12bytes of the RTP header</span></font><o:p></o:p></p>
</blockquote>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>No, you should not be parsing RTP headers at all. Our class
"H264VideoRTPSource" already takes care of this - it extracts NAL
units from the incoming RTP stream, and delivers them (one at a time) to the
downstream object. Just use this.<o:p></o:p></span></font></p>
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<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'><x-sigsep>-- <o:p></o:p></span></font></pre>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
</x-sigsep>Ross Finlayson<br>
Live Networks, Inc.<br>
http://www.live555.com/<o:p></o:p></span></font></p>
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