diff --git a/ves.js b/ves.js
index cb46342..0005877 100644
--- a/ves.js
+++ b/ves.js
@@ -451,7 +451,10 @@ async function work(config, ff, videos, encoders) {
 
 						if (filter != "")
 							filter = `${filter};` // [temp:${idx}];[temp:${idx}]
-						filter = `${filter}[${idx}:v:0]scale=flags=bicubic+full_chroma_inp+full_chroma_int:w=${video.resolution.width.toFixed(0)}:h=${video.resolution.height.toFixed(0)},colorspace=ispace=${config.options.transcode.color.matrix}:itrc=${config.options.transcode.color.trc}:iprimaries=${config.options.transcode.color.primaries}:irange=${config.options.transcode.color.range}:space=${video.color.matrix}:trc=${video.color.trc}:primaries=${video.color.primaries}:range=${video.color.range},format=pix_fmts=yuv444p,fps=fps=${video.framerate.toFixed(2)},${references[idx]}libvmaf=model_path=${vmaf_model}:log_fmt=json:log_path=${ff.consolify(file[1])}:enable_conf_interval=1:psnr=1:ssim=1:n_threads=${config.options.vmaf.threads.toFixed(0)}[main:${idx}]`
+						filter += `[${idx+1}:v:0]scale=flags=bicubic+full_chroma_inp+full_chroma_int:w=${video.resolution.width.toFixed(0)}:h=${video.resolution.height.toFixed(0)}`
+							+ `,colorspace=ispace=${config.options.transcode.color.matrix}:itrc=${config.options.transcode.color.trc}:iprimaries=${config.options.transcode.color.primaries}:irange=${config.options.transcode.color.range}:space=${video.color.matrix}:trc=${video.color.trc}:primaries=${video.color.primaries}:range=${video.color.range}`
+							+ `,format=pix_fmts=yuv444p,fps=fps=${video.framerate.toFixed(2)}[scaled:${idx}]`
+							+ `;[scaled:${idx}][${references[idx]}libvmaf=model_path=${vmaf_model}:log_fmt=json:log_path=${ff.consolify(file[1])}:enable_conf_interval=1:psnr=1:ssim=1:n_threads=${(config.options.vmaf.threads / files.length).toFixed(0)}[main:${idx}]`
 					}
 
 					opts.push("-filter_complex", filter);