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<div class="moz-cite-prefix">Hi Ken, Ross,<br>
<br>
I just wanted to add there is one extra possibility here. We have
noticed some cameras, especially HD cameras, split images across
more than one slice. In a vast majority of cameras the sequence
is:<br>
<br>
SPS PPS IDR -> SLICE -> SLICE -> SLICE...<br>
<br>
Where -> indicates the image boundary. However in some HD
cameras we have seen:<br>
<br>
SPS PPS IDR IDR -> SLICE SLICE -> SLICE SLICE -> SLICE
SLICE.<br>
<br>
If you do not group all the correct parts of an image together
when you decode each *image* the you can see the green distorted
video.<br>
<br>
Just putting it out there as another possibility.<br>
<br>
Kind Regards,<br>
<br>
Ken Ferguson.<br>
<br>
On 26/09/2014 19:06, Kenneth Forsythe wrote:<br>
</div>
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<p class="MsoNormal"><a moz-do-not-send="true"
name="_MailEndCompose"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For
servers I have two commercial H264 cameras and one
instance of live555MediaServer.exe running stock. VLC can
connect fine to all three. No problems here (as far as I
can tell).<o:p></o:p></span></a></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">My
client, on the other hand only works for the
live555MediaServer and one of the cameras. The other camera,
after receiving the data and delivering to the
decoder/renderer and am seeing green distorted video,
complete gobbly-gook. There doesn’t appear to be any
connectivity problems nor buffer size error messages.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">So
I wanted to see if my rtsp code handling is correct or if I
need to do some extra work before the data is delivered to
the decoder (I am new to this and figuring it out as I go
along). As I mentioned before:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt">What I am
doing is quite similar to what I see in
H264or5VideoFileSink::afterGettingFrame. On first frame I
am prepending the data with [startcodes][sps] and
[startcodes] [pps], (sps,pps was captured earlier on when
setting up the subsession). After first frame the data is
only prepended with the start codes. Is there something
else I should be doing, ie analyzing the nal type and
modifying differently? Or do you think the problem could
be outside the stream and more in the area where I am
setting up the video information?<o:p></o:p></span></i></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ken<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
live-devel [<a class="moz-txt-link-freetext" href="mailto:live-devel-bounces@ns.live555.com">mailto:live-devel-bounces@ns.live555.com</a>] <b>On
Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> Friday, September 26, 2014 1:24 PM<br>
<b>To:</b> LIVE555 Streaming Media - development &
use<br>
<b>Subject:</b> Re: [Live-devel] rtsp client -> h264
decoder<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">OK, so perhaps
it would be best if you clarified what specific problem you
are seeing. Is it a problem at the server end, at the client
end, or both? And where specifically are you using the
"LIVE555 Streaming Media" code? In your server (i.e.,
camera), in your client (i.e., media player), or both?<o:p></o:p></p>
<div>
<p class="MsoNormal"><span class="apple-style-span"><span
style="font-family:"Helvetica","sans-serif";color:black">Ross
Finlayson</span></span><span
style="font-family:"Helvetica","sans-serif";color:black"><br>
<span class="apple-style-span">Live Networks, Inc.</span><br>
<span class="apple-style-span"><a moz-do-not-send="true"
href="http://www.live555.com/">http://www.live555.com/</a></span></span>
<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<br>
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<br>
<pre wrap="">_______________________________________________
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<br>
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<b><span
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Ken Ferguson<br>
Cubitech Ltd.<br>
</span></b>
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Discovery Court Business Centre<br>
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United Kingdom<br>
<br>
Tel. +44 (0)1202 853 237<br>
Email: <span
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<a href="mailto:ken.ferguson@cubitech.co.uk">ken.ferguson@cubitech.co.uk</a>
</span>
<br>
Web:
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<a href="http://www.cubitech.com">www.cubitech.co.uk</a>
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