[Live-devel] Playback Speed

Mark Bondurant markb at virtualguard.com
Mon Dec 1 10:10:31 PST 2014


Oh. I didn't know that. I assumed it had to be part of the h264 headers (one or the other). Is there any way, that's comprehensible to my newb video skillset, to add that to my filesink, as in perhaps an example in one of the test programs?

From: live-devel [mailto:live-devel-bounces at ns.live555.com] On Behalf Of Deanna Earley
Sent: Thursday, November 27, 2014 1:07 AM
To: 'LIVE555 Streaming Media - development & use'
Subject: Re: [Live-devel] Playback Speed

Play in what?
Raw H.264 streams have no “speed” encoded with them, so you’d need to find a way to specify that in your player, or use a container (like AVI, mp4, etc) that stores the extra metadata.
The player is probably assuming a 25fps.

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From: live-devel [mailto:live-devel-bounces at ns.live555.com] On Behalf Of Mark Bondurant
Sent: 25 November 2014 17:23
To: 'LIVE555 Streaming Media - development & use'
Subject: [Live-devel] Playback Speed

I'm encountering a curious problem with payback speed. I'm pulling an RTSP play stream from my cameras, copying the NAL's, prepending them with the start code, as contiguous GOP units straight to disk, headers and all. And they play fine. Just at double speed. The camera is set to NTSC/H264/CIF/12 fps/Constant Bit Rate/0.125 Mbps. Any ideas what I'm doing wrong?


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