ffmpeg video transcoder

This page is mainly about ffmpeg video transcoder

FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created.

Shortcuts

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7-Zip

www.7-zip.org

7-Zip is a file archiver with a high compression ratio.

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CODEX FFMPEG

www.gyan.dev

FFmpeg Windows Builds.

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FFmpeg

ffmpeg.org

A complete, cross-platform solution to record, convert and stream audio and video.

For Windows (which is what I've got)...

Download the FFmpeg binaries from CODEX FFMPEG, save the 7z file in a suitable place and extract the archive (using 7zip).

You will find three directories, a licence and a readme file. The FFmpeg binary is in the "bin" folder. Open up a command prompt from START > cmd + ENTER.

Copy the full path from the folder navigation bar.

At the command prompt, type cdSPACE and paste in the path. Press the ENTER key.

Recipes

General video size cropping

ffmpeg -i in.mp4 -filter:v "crop=ow:oh:x:y" out.mp4

where...

ow is the output window width

oh is the output window height

x,y are the top left coordinates of the output window

make a portrait video square and centered

ffmpeg -i in.mp4 -filter:v "crop=iw:iw:0:(ih-iw)/2" out.mp4

make a landscape video square and centered

ffmpeg -i in.mp4 -filter:v "crop=ih:ih:0:(iw-ih)/2" out.mp4

Overlay subtitle file (burn into video)

ffmpeg -i in.mp4 -filter:v subtitles=subtitles.srt out.mp4

Put a semi-transparent logo (85x85) in the folder with the video

ffmpeg -i in.mp4 -i logo.png -filter_complex "overlay=x=W-w-10:y=10" out.mp4

Remove the first part of a video

ffmpeg -i in.mp4 -ss hh:mm:ss -vcodec copy -acodec copy out.mp4

Remove last part of the video

ffmpeg -i in.mp4 -to hh:mm:ss -vcodec copy -acodec copy out.mp4

Remove beginning and end of video

ffmpeg -i in.mp4 -ss hh:mm:ss -to hh:mm:ss -vcodec copy -acodec copy out.mp4

Last modified: October 5th, 2021

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ffmpeg video transcoder

Recipes