<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.6000.16546" name=GENERATOR></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2>This question seems like mostly an MPEG-2 TS question
rather than an H.264/AVC question, and so it is likely to be outside of my
primary area of expertise.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2>It does seem possible that the 41 could be a NAL unit
header, containing a coded slice (nal_unit_type = 1) of a reference picture
(nal_ref_idc = 2). But that would not be what you would expect to find at
the start of a new bitstream, since it is not an IDR slice and it is not an SPS
or PPS or SEI or AUD or such thing that would be found at that
location.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2>Adding Sam for MPEG-2 TS expertise.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2>Best Regards,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=637315120-12122007><FONT face=Arial
color=#0000ff size=2>Gary</FONT></SPAN></DIV><BR>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Bruno Guedes [mailto:brguedes@gmail.com]
<BR><B>Sent:</B> Wednesday, December 12, 2007 7:00 AM<BR><B>To:</B>
ohm@ient.rwth-aachen.de; aluthra@motorola.com; Gary Sullivan;
x264-devel@videolan.org<BR><B>Subject:</B> Doubts about structure
H.264/AVC<BR></FONT><BR></DIV>
<DIV></DIV>Hi,<BR>I'm a IST-student and I'm starting to work in IPTV area. I
use the VLC streamer and I want to transmit H.264/AVC over RTP/UDP in TS
(transport stream) mode!<BR>I analyze the bytes in reception with wireshark,
but I got something like this: <BR>"00 00 01 e0 17 93 80 c0 0a 31 29 0d 9a 6b
11 29 0d 9a 6b 00 00 01 41 9a 5d 2e b2 08 7f fc db 08..."<BR>As I could
understand the first nineteen bytes are PES header. I think (but I don't have
sure) that the byte 41 (that is ahead of the start code (00 00 01)) is the NAL
header! But I don't know where is the elementary stream header! <BR>If someone
can explain me what's wrong with my thought or where's the elementary stream
header, I appreciate.<BR><BR>best regards<BR><BR>-- <BR>Bruno Guedes
</BLOCKQUOTE></BODY></HTML>