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My Take – Using your mobile camera as a webcam

A couple of weeks back Chris Kranky offered a post where he explored this topic in some detail. It’s a good idea. Well worth exploring since common, and especially built-in webcams, are so bad. He tried a handful of iOS and Android apps on various handsets. It was a good experimental series.

I’d like to add a slightly different take, using a couple of additional apps that have crossed my path. In particular, I’d like to highlight NDI as a technology that’s very useful in this application.

What is NDI?

According to Newtek:

“NDI® (Network Device Interface) is a low latency IP video protocol developed especially for professional live video production, and is supported by an extensive list of broadcast systems from many manufacturers.”

NDI Camera

Newtek has offered two different NDI Camera apps. The original (no longer offered) which I bought for around $20, leverages full-bandwidth NDI. Full-bandwidth NDI offers the best image quality, and lowest latency, but requires massive bandwidth. It can work very well used when on a robust Wi-Fi network.

NDI Camera Julio

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A Challenge: WebRTC Screen Sharing v2

screenshare-composite-example2-300pxIt’s been a year or more that tools like Google’s Hangouts have supported the ability to share a host computer screen with the viewing audience. This was rightfully heralded as “a very good thing indeed.” However, it’s current incarnation is considerably less than ideal and seems to be stalled. I’d like to lay out a challenge to see if anyone is interested into taking this to the next level, which is something that we’ve tried to do with a few VUC calls earlier this year.

Here’s the fundamental problem; people use screen sharing to give demos of software and share documents, which includes giving presentations a la PowerPoint, Keynote, etc. Currently, Hangouts, Jitsi Video Bridge and the like show either the screen share or the camera. In the case of slide presentations there can be very little activity in view as the presenter speaks to the points shown on the current slide. This creates less than compelling visuals.

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