/ffmpeg-usage-examples

ffmpeg usage exaples

ffmpeg-usage-examples

ffmpeg usage examples

Install

sudo apt install ffmpeg

Cut a piece from the video

ffmpeg -i input.mp4 -ss 00:00:50 -codec copy -t 50 output.mp4,

  • -ss 00:00:50 - start from 00:00:50
  • -t 50 - time 50 sec

Cut the video into two parts

ffmpeg -i input.mp4 -t 00:00:30 -c copy part1.mp4 -ss 00:00:30 -codec copy part2.mp4

  • part1.mp4 - from 00:00:00 to 00:00:30
  • part2.mp4 - from 00:00:30 to end of input.mp4

Remove audio from video

ffmpeg -i input.mp4 -vcodec copy -an output.mp4

Add audio to video

ffmpeg -i input.mp4 -i zvuk.mp3 -vcodec copy -acodec copy output.mp4

mov to mp4 with quality preservation

ffmpeg -i 'input.mov' -q:v 1 output.mp4

  • -q:v n, 1 < n < 31, 1 - the highest quality

Photo banner for audio

ffmpeg -loop 1 -i 001.jpg -i 001.mp3 -c:v libx264 -c:a copy -t 5 output.mp4

Stabilize the video

  1. ffmpeg -i input.mp4 -vf vidstabdetect=shakiness=5 stage1.mp4
  2. ffmpeg -i stage1.mp4 -vf vidstabtransform output.mp4

Two videos side by side

ffmpeg -i ' left.mp4' -i right.mp4 -filter_complex hstack -c:v libx264 output.mp4

Speed up the video

ffmpeg -i 'input.webm' -vf "setpts=0.25*PTS" output.webm

Split the video into equal parts

a bash example

#!/bin/bash
for i in {00..09}
do 
    sec=$[${i#0} * 30]
    echo "Секунды: $sec"
    ffmpeg -i input.mp4 -ss $sec -t 30 -codec copy output_$i.mp4
done

Make a smooth transition from one photo to another

ffmpeg -loop 1 -i input#2.png -loop 1 -i input#3.png -filter_complex "[1:v][0:v]blend=all_expr='A*(if(gte(T,3),1,T/3))+B*(1-(if(gte(T,3),1,T/3)))'" -t 4 output.mp4