video texture issue in fragment shader

videotexture1.compute.wgsl

                struct Params {
                    utime:f32, 
					epoch:f32, 
					screenWidth:f32, 
					screenHeight:f32, 
					mouseX:f32, 
					mouseY:f32, 
					sliderA:f32, 
					sliderB:f32, 
					sliderC:f32, 
					
                }
            
@group(1) @binding(0) var <uniform> params: Params;




struct Fragment {
    @builtin(position) Position: vec4<f32>,
    @location(0) Color: vec4<f32>,
    @location(1) uv: vec2<f32>,
    @location(2) ratio: vec2<f32>,
    @location(3) mouse: vec2<f32>
}


const workgroupSize = 8;

@compute @workgroup_size(workgroupSize,workgroupSize,1)
fn main(
    @builtin(global_invocation_id) GlobalId: vec3<u32>,
    @builtin(workgroup_id) WorkGroupID: vec3<u32>,
    @builtin(local_invocation_id) LocalInvocationID: vec3<u32>
) {
    let utime = params.utime;
}

videotexture1.fragment.wgsl

                struct Params {
                    utime:f32, 
					epoch:f32, 
					screenWidth:f32, 
					screenHeight:f32, 
					mouseX:f32, 
					mouseY:f32, 
					sliderA:f32, 
					sliderB:f32, 
					sliderC:f32, 
					
                }
            
@group(1) @binding(0) var <uniform> params: Params;
@group(1) @binding(1) var feedbackSampler: sampler;
@group(1) @binding(2) var video: texture_external;




struct Fragment {
    @builtin(position) Position: vec4<f32>,
    @location(0) Color: vec4<f32>,
    @location(1) uv: vec2<f32>,
    @location(2) ratio: vec2<f32>,
    @location(3) mouse: vec2<f32>
}




@fragment
fn main(
        @location(0) Color: vec4<f32>,
        @location(1) uv: vec2<f32>,
        @location(2) ratio: vec2<f32>,
        @location(3) mouse: vec2<f32>,
        @builtin(position) position: vec4<f32>
    ) -> @location(0) vec4<f32> {


    let videoDims = textureDimensions(video);
    let videoDimsRatio = f32(videoDims.x) / f32(videoDims.y);
    let videoUV = uv * vec2(1,-1 * videoDimsRatio) * ratio.y / params.sliderA; // params.sliderA(B/C) is a value between 0 and 1

    let rgbaVideo = textureSampleBaseClampToEdge(video, feedbackSampler, uv /*videoUV*/ );

    return rgbaVideo;
}

videotexture1.vertex.wgsl

                struct Params {
                    utime:f32, 
					epoch:f32, 
					screenWidth:f32, 
					screenHeight:f32, 
					mouseX:f32, 
					mouseY:f32, 
					sliderA:f32, 
					sliderB:f32, 
					sliderC:f32, 
					
                }
            
@group(1) @binding(0) var <uniform> params: Params;




struct Fragment {
    @builtin(position) Position: vec4<f32>,
    @location(0) Color: vec4<f32>,
    @location(1) uv: vec2<f32>,
    @location(2) ratio: vec2<f32>,
    @location(3) mouse: vec2<f32>
}

;
fn defaultVertexBody(position: vec4<f32>, color: vec4<f32>, uv: vec2<f32>) -> Fragment{
    var result: Fragment;

    let ratioX = params.screenWidth / params.screenHeight;
    let ratioY = 1 / ratioX / (params.screenHeight / params.screenWidth);
    result.ratio = vec2(ratioX, ratioY);
    result.Position = vec4<f32>(position);
    result.Color = vec4<f32>(color);
    result.uv = vec2(uv.x * result.ratio.x, uv.y);
    result.mouse = vec2(params.mouseX / params.screenWidth, params.mouseY / params.screenHeight);

    return result;
}


@vertex
fn main(
    @location(0) position: vec4<f32>,
    @location(1) color: vec4<f32>,
    @location(2) uv: vec2<f32>,
    @builtin(vertex_index) VertexIndex: u32
) -> Fragment {

    return defaultVertexBody(position, color, uv);
}