<p>Hello you beautiful people. I am currently figuring out how to use ffmpeg and asked myself a question. Usually, when using a vignette on a video, I would do the following:</p>

<pre><code>ffmpeg -i input.mp4 -vf vignette=PI/4 output.mp4
</code></pre>

<p>This will obviously re-encode the video and thus I will lose quality. I could try using a lossless codec (such as libx264 with -crf 0 and -preset veryslow) and did so, but here's what I'm curious about:</p>

<p>Is it possible to create a Pass that only contains the vignette, to then merge the vignette plate with the video?</p>

<p>I would suspect that such a thing would be much less tedious for lossless vignetting, no?</p>

CC BY-SA 4.0
2019-06-20T10:00:30.520Z
*then merge the vignette plate with the video* --> as in combine with original video within a new file? Not possible.
Gyan
CC BY-SA 4.0
2019-06-21T07:29:21.590Z
No? Aw man that's too bad :(
Florian Claaßen
<ffmpeg>
FFMPEG - Merging Video with Vignette-Only-Plate?
Florian Claaßen
# FFMPEG - Merging Video with Vignette-Only-Plate?

(Asked by: username_0 on 2019-06-20)

Hello you beautiful people. I am currently figuring out how to use ffmpeg and asked myself a question. Usually, when using a vignette on a video, I would do the following:
ffmpeg -i input.mp4 -vf vignette=PI/4 output.mp4

This will obviously re-encode the video and thus I will lose quality. I could try using a lossless codec (such as libx264 with -crf 0 and -preset veryslow) and did so, but here's what I'm curious about:
Is it possible to create a Pass that only contains the vignette, to then merge the vignette plate with the video?
I would suspect that such a thing would be much less tedious for lossless vignetting, no?

**Tags:** ffmpeg

> **Comments:**
> **username_1**: *then merge the vignette plate with the video* --> as in combine with original video within a new file? Not possible.  
> **username_0**: No? Aw man that's too bad :(  

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## 0 answers

