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FFMPEG Resize Video

April 13, 2023

Here’s how to reduce a MP4 video using H.265 format.

ffmpeg -i input.mp4 -vcodec libx265 -crf 28 output.mp4

ffmpeg -i input.mp4 -vcodec libx265 -crf 28 output.mp4

I was able to reduce a video file from 550MB to 26MB without much quality loss.

Filed Under: Linux Tagged With: h.265, mp4, resize

Bulk FFMPEG Resize

October 31, 2022

Here’s how to resize videos and pictures using FFMPEG.

Bulk Resize Pictures

for filename in *.JPG; do 
  ffmpeg -i "$filename" -vf scale=-1:720 final/"$filename";
done

for filename in *.JPG; do ffmpeg -i "$filename" -vf scale=-1:720 final/"$filename"; done

Bulk Resize Video and Create Thumbnail

for filename in *.MP4; do 
  ffmpeg -i "$filename" -s 1080x720 -pix_fmt yuv420p -crf 18 "$filename".mp4; 
  ffmpeg -ss 00:00:00 -i "$filename" -vframes 1 "$filename".jpg;
done

for filename in *.MP4; do ffmpeg -i "$filename" -s 1080x720 -pix_fmt yuv420p -crf 18 "$filename".mp4; ffmpeg -ss 00:00:00 -i "$filename" -vframes 1 "$filename".jpg; done

Filed Under: Linux Tagged With: bulk, ffmpeg, pictures, resize, videos

FFMPEG Resize

October 25, 2022

How to resize JPEG using FFMPEG.

ffmpeg -i TREE.JPG -y -vf scale=iw*.2:ih*.2 tree.jpg

ffmpeg -i TREE.JPG -y -vf scale=iw*.2:ih*.2 tree.jpg

Another option is to set resolution.

ffmpeg -i TREE.JPG -y -vf scale=-1:720 tree.jpg

ffmpeg -i TREE.JPG -y -vf scale=-1:720 tree.jpg

How to resize video using FFMPEG.

ffmpeg -i TREE.MP4 -s 640x360 -pix_fmt yuv420p -crf 18 tree.mp4

ffmpeg -i TREE.MP4 -s 640x360 -pix_fmt yuv420p -crf 18 tree.mp4

How to create a thumbnail from a video.

ffmpeg -ss 00:00:00 -i tree.mp4 -vframes 1 tree.jpg

ffmpeg -ss 00:00:00 -i tree.mp4 -vframes 1 tree.jpg

Filed Under: Linux Tagged With: create, ffmpeg, image, resize, thumbnail, video

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