[Live-devel] Buffering an H264 Video Stream

[Mark Bondurant]

As you surly must know, I'm a noob thrust unwillingly by circumstances into this.

This is helpful. I don't need frames, just ten seconds of stream. But, doesn't H264 have a definite beginning with the following NAL packets updating the initial packet? That's what all that predictive slices and three dimensional compression and such does? I don't think I can just jump into the middle of the stream and start grabbing packets and still have a usable stream, which is why I was thinking about converting it to mpeg or something.


From: live-devel [mailto:live-devel-bounces at ns.live555.com] On Behalf Of Ross Finlayson
Sent: Monday, November 03, 2014 3:35 PM
To: LIVE555 Streaming Media - development & use
Subject: Re: [Live-devel] Buffering an H264 Video Stream

Also, part of the problem here, I think, is that you seem to be confused by what the class “H264VideoStreamFramer” does.  This class takes as input an unstructured H.264 byte stream, and parses it into discrete H.264 NAL units.  It *does not* combine multiple H.264 NAL units into a single ‘access unit’ (i.e., picture).  If you want to do this (or any other processing on the incoming H.264 NAL units), then you’ll need to do this yourself.  The LIVE555 libraries do not contain any video ‘codec’ (i.e., decoding or encoding) functionality.
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/

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