yes, we’re having the same issue now. but -benchmark also really degrades the stream. Is there any options possible for -benchmark (moderate, strict)?
Ken > mplayer -benchmark has been the only client I've found with reasonable > latency, though I'm sure there are others/more. > I've gotten pretty low latency before with ultrafast+zerolatency > > Basically my advice is "be wary of ffplay (and vlc)" I'm not sure if > its latency is low enough... > On Jan 13, 2016, at 2:30 AM, Roger Pack <[email protected]> wrote: > > On 1/12/16, Greger Burman <[email protected] <mailto:[email protected]>> wrote: >> I would like to hear from anyone who has experience with low latency video >> streaming and ffmpeg. >> >> In my application I take video from a PCIe capture device and stream live >> over network. The end to end latency must be below 200ms otherwise it is >> not usable. Let us assume that the network latency is near zero. This >> question is about encoder+decoder+buffering latency. >> >> Very low latency can be achieved when using the x264 encoder by using >> settings like tune zerolatency. From my own testing with x264 (without >> ffmpeg) I can confirm that this works. I have measured approx 90 ms (3 >> frames) of latency added by encoder+decoder combined. Awesome. >> >> Sadly I have been unable to get anywhere near those numbers when using >> ffmpeg and libx264. As player I use either ffplay or a dot-net player built >> on the ffmpeg libraries, with about equal results. The lowest end to end >> latency I have seen is 400-500ms. That includes capture latency also. > > > https://trac.ffmpeg.org/wiki/StreamingGuide > <https://trac.ffmpeg.org/wiki/StreamingGuide> > _______________________________________________ > ffmpeg-user mailing list > [email protected] <mailto:[email protected]> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > <http://ffmpeg.org/mailman/listinfo/ffmpeg-user> _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
