Questions tagged [scale]

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2answers
2k views

FFmpeg does not preserve colors after resizing

I would like to resize a 4K mkv video to 1920×1080 with ffmpeg version 3.4.6-0ubuntu0.18.04.1 on Ubuntu 18.04. The original file has the following features: Input #0, matroska,webm encoder : ...
10
votes
2answers
15k views

How to convert a 3D movie to 2D using ffmpeg

I am looking for a way to convert a 3d movie to a 2d movie. I found a reference on this forum. http://www.ffmpeg-archive.org/How-to-re-encode-3d-video-to-2d-video-td4676271.html
5
votes
1answer
3k views

ffmpeg - resize and crop

I want to know how to use the scale filter to take an image that is 2154x1136 and scale it down exactly 89.04% such that the image sits in a 1920x1080 frame, with full image left and right and black ...
2
votes
1answer
1k views

ffmpeg vf scale shifts colors to washed out

Im trying to scale video down. No matter what I do the colors are always washed up as a result. original: After scaling: Code I run for it ffmpeg -i input.mkv -vf scale=1028:-1 output.mkv log: log ...