Challenge all Android video over usb experts! I spent weeks trying to figure out what I need to do to display and record the video stream from an external video camera connected to USB. It's simple enough using the device’s built-in camera, but doing it via USB seems to be a big problem.
I saw several YouTube videos for people who managed to connect a USB Video Class (UVC) camera to display the video stream, but as far as I can understand, this seems to require a root device and a custom ROM, which I want to avoid.
I read somewhere that there is a fundamental problem with USB to Android (something about transferring ISOChronous?), Which makes it very difficult (impossible?) To read and write video via USB. But I also read somewhere else that later versions of Android (4.1+) solved this problem, although I cannot confirm this.
Does anyone in the SO community know if I can do this without rooting or creating a custom ROM? Or am I asking for too much Android here?
If it is possible to do this without switching to the native (JNI / NDK), this will be ideal. If there is a forum or tutorial that covers this that someone knows about, that would be great, but any information would be greatly appreciated.
Thanks in advance for your help!
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