Ok, thanks for the input.
Matt S.
On Wednesday, August 03, 2011 6:51:37 PM, Ross Finlayson wrote:
Yes. Now, the SPS and PPS NAL units are assumed to be in the input
NAL unit stream (and are extracted from there).
Is that a safe assumption, isn't optional to include the SPS and PPS
NAL units in the stream? or at the very least make the very infrequent?
Yes, it's uncommon for a supplier of a H.264 stream to know the SPS and
PPS NAL units, but for those NAL units not to appear in the stream. Most
commonly, these NAL units appear in the stream, but you don't know what
they are - and can find them out only by scanning the stream. We now do
that for you.
Hmm, I'll look into it, but my encoder gives me the sps and pps when I
initialize it, it seems like it would be easier to just hand the sps
and pps to the rtp sink and just re-implement auxSDPLine in my class,
pretty much like I used to do. Is there a reason your recomme
nding
this approach
Yes, the reason was that it would probably save you work. If the SPS and
PPS NAL units also appear in the stream (which, for most encoders, they
will), then you don't have to do any extra work (except perhaps
duplicate some code that we already have in
"H264VideoFileServerMediaSubsession").
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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