Major Manufacturers Dropping MJPEG
Author: Ethan Ace, Published on Nov 04, 2016
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Comments (15)
Matt Transue
I wonder if they are no longer supporting an MJPEG stream at all, or if they are just removing it from the web interface as a configuration option.
Maybe MJPEG is still available via. OID or API commands (i.e. for those specialized applications), but they simply don't' expose MJPEG to the user.
I see no real reason to not allow it at all, but I can understand now allowing a standard user to configure it. 'Save them from themselves' mentality?
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Brandon Frazier
Many VMS mobile or web clients can only use MJPEG streams. If an H.264 is the only available stream it needs to be transcoded using CPU resources. If you can send it MJPEG it passes right through. I say keep it!
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Undisclosed #1
I believe MJPEG streaming is required by ONVIF Profile S. So...
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Sean Nelson
i get tired of trying to jack with MJPEG to get it to work on home automation systems. I think HA systems should adopt h.264 decoding instead.
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Undisclosed Integrator #2
What's the benefit of dropping it? I can't think of a time I have had to set a camera to MJPEG other than when a sales person underspecified processors on a server. Does it save development time or related costs in any way? If it does I would not mind it disappearing.
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Ethan Ace
After 49 votes, opinions are fairly evenly split about drop vs. keep. 53% keep, 47% drop. I expected things to be more lopsided in one direction or the other.
Interestingly, integrators are more prone to drop; manufacturers are more prone to keep.
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Sergey Bystrov
This is likely a little push to use H.264. This is not MJPEG drop.
MJPEG encoder is so cheap at the moment that it does not make any impact on hardware price. MJPEG encoder is part of any chip. On another hand it's not about ONVIF, MJPEG is still standard for browsers. Camera/device manufacturer still need to make browser UI wich natively works everywhere. We still need still images. And we still need a way to get those from the camera.
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Undisclosed #1
Ethan, have you tried any of the old url's directly, like cgi-bin/video.jpg etc?
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Chris Newhouse
Unfortunately, all MPEG compression protocols are subject to aliasing and artifact. Much of my projects are in manufacturing for process control and machine monitoring. We must use MJPEG to monitor machines in motion or there is blur that defeats to purpose of the camera. We installed a number of cameras in a stamping press of a major auto manufacturing plant to catch defects being made and determine the cause using frame by frame analysis. This wouldn't work with any compression and we had to use MJPEG.
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Attila Szucs
My concern when testing. If I use MJPEG instead of the fancy , H264, H264+, H265, H'whatever coding I have less impact on the image quality. So first I always test MJPEG streams, then the H264, etc. With this I can see the real IQ, and the effect of compressions used. So different manufacturers can be compared better on videoIQ
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