Wang Yang

有一个ios11的demo， 带有人脸识别： https://github.com/wysaid/ios-gpuimage-plus/tree/master/demo_ios11

Can you produce your problem in the demo? Give me a fork and I can take a look for your problem

you may try : `@krblend mix date.png 120`

@AnitaVPN Please produce your problem in the demo, and give me the link. I can take a look for you.

>Please also mention the range i can input for three of them like what is start and end range for Brightness for Saturation for Contrast The range is in the...

I will add a new case for the feature as the Android one.

Please know that: the image loading part has nothing to do with the `main bundle`. It's done by the [callback](https://github.com/wysaid/ios-gpuimage-plus/blob/master/demo/cgeDemo/MainViewController.m#L41) here. Please check your code, and make sure you have...

Strange frames generates with device 2 as ``` butterflow -v -device 2 -r 2x test.mp4 -o test.60fps.mp4 ``` But if I choose ``` butterflow -v -device 1 -r 2x test.mp4...

Sure, but `hevc` is not free, you can try it with ffmpeg by yourself.

Did this happen with the repo builtin demo?