We set the width of the output image to 250 pixels. When we scale an image without specifying the size, the input dimension is used as the default value.

The libswscale library contains video image scaling and colorspace/pixelformat conversion routines. In other words, a 480p video has a resolution of 852×480 pixels.2 What is the resolution of 720p?ġ280×720 pixels Can FFmpeg resize an image?įFMpeg is using the libswscale library to resize the input. So, a 480p video is made up of 480 lines stacked one on top of another, with each line being 852 pixels wide.

To set the bitrate target in FFmpeg, use the -b:v code (bitrate:video) below : ffmpeg -i Test_1080p. 265 (no change in resolution) ffmpeg -i input.mp4 -c:v libx265 -vtag hvc1 -c:a copy output.mp4. Convert 4k to 1080 (no change in codec) ffmpeg -i input4kvid.mp4 -vf scale=1920:1080 -c:a copy output1080vid.mp4.ffmpeg -i input.mp4 -vf scale=480:-1 output.mp4.Download and Install FFmpeg to Your Computer.ffmpeg -i input.mp4 -vf scale=-1:720 output.mp4. Specify the Height To Retain the Aspect Ratio.The resulting video will have a resolution of 320×180. ffmpeg -i input.mp4 -vf scale=320:-1 output.mp4. Specify the Width To Retain the Aspect Ratio.How to Change the Video's Resolution but Keep the Aspect Ratio? We have presented a wealth of illustrative examples to show how the Ffmpeg Resolution 720*480 problem can be solved, and we have also explained how to do so.

Ffmpeg -i input.avi -s 720x480 -c:a copy output.mkv

Ffmpeg scale 1080p