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#command-line

List of Useful FFmpeg Commands

Generate gif from video

ffmpeg -i video.mp4 -vf "crop=in_w-200:in_h-200,fps=30,scale=640:-1:flags=lanczos" -c:v gif your_gif.gif -y

Generate gif with watermark from raw gif

ffmpeg -i your_gif.gif -vf "drawtext=text='©Tiago Aguiar':x=(w-text_w)/2:y=(h-text_h)/2:fontsize=24:fontcolor=white" -c:v gif gif_watermark.gif -y

Generate video from gif with subtitle

ffmpeg -i video.mp4 -vf "crop=in_w-200:in_h-200,drawtext=text='©Tiago Aguiar':x=(w-text_w)/2:y=(h-text_h)/2:fontsize=34:fontcolor=white,subtitles=subtitle.srt" -codec:a copy your_video_watermark.mp4

subtitle.srt example: 

1
00:00:00,000 --> 00:00:10,000
Leia a legenda

Compress Video

ffmpeg -i <input_file> -vcodec libx265 -crf 28 <dest_file>

Change Video Frame Rate

SOURCE=$1
DEST=$2
FRAME_RATE=`echo | awk "{print 1.0/$3}"`

echo $FRAME_RATE 

ffmpeg -i $SOURCE -filter_complex "[0:v]setpts=$FRAME_RATE*PTS[v];[0:a]atempo=$3[a]" -map "[v]" -map "[a]" $DEST

# example
# frame_rate tetris-shorts.mp4 tetris-shorts-render.mp4 1.1

video to gif

ffmpeg -i gen.mp4 -vf "fps=30,scale=1280:-1:flags=lanczos" -c:v gif seu_gif.gif

with crop

ffmpeg -i gen.mp4 -vf "crop=in_w-200:in_h-200,fps=30,scale=1280:-1:flags=lanczos" -c:v gif seu_gif.gif -y

gif watermark

ffmpeg -i seu_gif.gif -vf "drawtext=text='©Tiago Aguiar':x=(w-text_w)/2:y=(h-text_h)/2:fontsize=34:fontcolor=white" -c:v gif gif_com_marca_dagua.gif -y

subtitle

1
00:00:00,000 --> 00:00:10,000
Linha 1
Linha 2

video w/ watermark

ffmpeg -i gen.mp4 -vf "crop=in_w-200:in_h-200,drawtext=text='©Tiago Aguiar':x=(w-text_w)/2:y=(h-text_h)/2:fontsize=34:fontcolor=white,subtitles=legenda.srt" -codec:a copy seu_video_com_marca_dagua.mp4