after scaling down to 640x360 via terminal ffmpeg -i orgvideo1280x720.mp4 -strict -2 -vf 'scale640:360' newvideo640x360.mp4 Stream 0:0(und): Video: h264 (High. ffmpeg -i CONVERT.mp4 -vf scale3840:2160:flagsneighbor -c:v h264amf -profile high -preset slow -rc vbr2pass -qmin 17 -qmax 22 -2pass 1 -c:a:0 copy -b:a 384k VIDEO.mp4. As part of this process, while trying to alter the size found that it alters the timebase. There also many other command for convert LIKE : ffmpeg -i inputfile.avi -s 320x240 outputfile.avi. so i am using command: ffmpeg -i ttt.mp4 -vcodec copy -acodec copy test.mp4 this is working perftectly but now i also add scale in this -s 320:240. Some more details about source and resulting files dimensions and aspect is also here. I have been trying to write a script to merge multiple. i want convert video from any format to mp4. Use the command ffmpeg -i video1920.mp4 -vf scale640:360 video640.mp4 -hidebanner. To import your video, you need to open the command prompt or Powershell in the folder containing that video file. Resulting merged file (scaling on the left, no scaling on the right): First of all, download FFmpeg and launch it on your computer. Seems to be working to merge files (i am using LosslessCut/Tools/Merge menu item), aspect quite ok on merged files, but downscaled the first segment of the video file too much as you can see on the left side of the following image.įor i in 1 2 do ffmpeg -i $i.mp4 - vf "setdar=4:3,setsar=1" "$i"sdarsar1.mp4 done My result so far is to recode video files 1.mp4 and 2.mp4 like this:Ī) method where i scale both files in attempt to match the normalize dimensions of both segments:įor i in 1 2 do ffmpeg -i $i.mp4 -vf "scale=576:-2,setdar=4:3,setsar=1" "$i"sdarsar1.mp4 done I spent hours trying to figure out how to m€rg€ numerous files with different dimensions and asp€ct rati0s.
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