On 4/3/2014 02:27, Ross Finlayson wrote:
JPEG video streaming is a bad idea (that nobody should really be doing in 2014)
Intra-frame compression is perfectly sensible for IP cameras on private LANs, especially when you're doing things like motion detection on the server side, rather than on-camera. You don't have to account for motion estimation error buildup, for one thing.
For another, the inexpensive high-efficiency codec ICs found in IP cameras typically crush a lot of detail out of the scene relative to JPEG. Even if you're going to use something like H.264 for video storage after motion estimation, a software encoder will typically give better results than compressing on-camera. (At the expense of more watts per megabit, of course.)
If intra-frame compression were perfect for everything, the industry wouldn't still be coming up with new I-only codecs like ProRes and CineForm.
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