How do I use OffscreenVideo with two input videos?

[Mouadabdelghafouraitali]

Hi, thanks for the library! I've been using it since 2019 — it's very useful.
I'm currently trying to blend a mask and a video into a single output video. The GLSL code I’m using does the trick, but I need to pass two videos (original video and mask video) as inputs.

Right now, the library supports .setImages(), which only accepts a Bitmap as the second input, not a video.

How can I pass a video instead?

void mainImage( out vec4 fragColor, in vec2 fragCoord ){
    vec2 uv = fragCoord.xy/iResolution.xy;
    vec4 orig = texture(iChannel0, uv);
    vec4 mask = texture(iChannel1, uv);
    if (mask.r > 0.9 && mask.g > 0.9 && mask.b > 0.9) {
        fragColor = orig;
    } else {
        fragColor = vec4(0.004, 1.0, 0.004, 1.0);
    }
}