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Control video playback with usb rotary controller

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Doug
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Anyone had any luck using an external usb device to adjust forward/backward and speed of a video clip?

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    Ken Campbell

    I’ve done a proof-of-concept using a rotary encoder and microcontroller connected to the Brightsign, using a serial connection and some Brightscript. If you’re looking to make something for realtime “scratching”, the performance isn’t there even with real-time suitable video transcodes (ie.few to none B-frames or P-frames; roVideoPlayer’s Seek method will only let you land on the nearest I-frame). Audio drops out under 50% playback speed, and there’s no audio playing in reverse, if I remember correctly.

    If that’s your intended application, you’re better off using something more suited like Resolume Avenue, vvvv, Max/MSP/Jitter, Processing, etc. They’re all capable of doing what you want and a lot more (video and audio effects, generators, mixing clips, etc.)

    Ken

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