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Here we take some typical command-line examples to show you how to compress MP4/MOV/4K/MKV video size using FFmpeg.Ĭommand-line - Compress and Convert H.264 to H.265 for Higher Compressionįfmpeg -i input.mp4 -vcodec libx265 -crf 28 output.mp4Ĭommand-line - Compress and Convert MP4 to Webm for YouTube, Ins, Facebookįfmpeg -i source.mp4 -c:v libvpx-vp9 -b:v 0.33M -c:a libopus -b:a 96k \Ĭommand-line - Compress and Convert MP4 to WMVįfmpeg -i input.mp4 -b 1000k -vcodec wmv2 -acodec wmav2 -crf 19 -filter:v fps=fps=24 output.wmvĬommand-line -Set CRF in FFmpeg to Reduce Video File Sizeįfmpeg -i input.mp4 -vcodec libx264 -crf 24 output.mp4Ĭommand-line - Reduce video frame size to make 4K/1080P FHD video smallerįfmpeg -i input.avi -vf scale=1280:720 output.avi You can use a more efficient codec format (H.265 compresses data 30% smaller than H.264), lower bitrate or fps, shorter video length. There are a few ways to reduce video size using FFmpeg. For more detailed guide, check for this post " How to Install FFmpeg on Windows". Open Windows Powershell from the start menu, and start with the compression command-line in FFmpeg. For Windows users, Windows Powershell is recommended over Command-Line. Start with the command-line examples below using FFmpeg.ĭownload FFmpeg and finish the setup process on your computer. To compress videos in FFmpeg, you should make sure the command-line is right. Part 1: How to Compress Video Size with FFmpeg (Command-line) on Windows

Part 2: Best FFmpeg Alternative to Reduce Video Size without Losing Quality.Part 1: How to Compress Video Size with FFmpeg (Command-line).Strapped for time? Click one of the links below to jump straight to your most interested part.