The --fps option for video-stream doesn't work.

[kyoung-mo-yang]

Description

If --fps option for video-stream is greater than 1, the option doesn't work.

Reproduction

The two scripts below have the same FPS applied.

idb video-stream --fps 30 --format mjpeg --compression-quality 1.0 --udid {UDID}
idb video-stream --fps 10 --format mjpeg --compression-quality 1.0 --udid {UDID}

Solution

idb/FBDeviceControl/Video/FBDeviceVideoStream.m

Line 102 in 262f5c6

Float64 frameTime = 1 / configuration.framesPerSecond.unsignedIntegerValue;

The above code should be modified as follows:

Float64 frameTime = 1.0 / configuration.framesPerSecond.unsignedIntegerValue;

Additional Information