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Use FFmpeg to convert, process, and manipulate video and audio files from the terminal. Transcode formats, extract audio, create thumbnails, trim clips, and more.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
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| name | ffmpeg-cli |
| description | Use FFmpeg to convert, process, and manipulate video and audio files from the terminal. Transcode formats, extract audio, create thumbnails, trim clips, and more. |
The universal multimedia framework. Convert, process, and stream video and audio.
ffmpeg -i input.mp4 output.webm # Convert MP4 to WebM
ffmpeg -i input.mov output.mp4 # Convert MOV to MP4
ffmpeg -i input.wav output.mp3 # Convert WAV to MP3
ffmpeg -i input.mp4 -c:v libx264 -crf 23 output.mp4 # Re-encode with H.264
ffmpeg -i video.mp4 -vn -acodec mp3 audio.mp3 # Extract audio as MP3
ffmpeg -i video.mp4 -vn -acodec pcm_s16le audio.wav # Extract as WAV
ffmpeg -i video.mp4 -vn -c:a copy audio.aac # Extract without re-encoding
ffmpeg -i input.mp4 -ss 00:01:00 -to 00:02:00 -c copy clip.mp4 # Cut 1:00-2:00
ffmpeg -i input.mp4 -ss 30 -t 10 -c copy clip.mp4 # 10 seconds starting at 30s
ffmpeg -i input.mp4 -ss 00:00:05 -frames:v 1 thumb.png # Screenshot at 5s
ffmpeg -i input.mp4 -vf "fps=1/10" thumb_%04d.png # One frame every 10s
ffmpeg -i input.mp4 -vf "thumbnail" -frames:v 1 best_thumb.png # Best thumbnail
ffmpeg -i input.mp4 -vf "scale=1280:720" output.mp4 # Resize to 720p
ffmpeg -i input.mp4 -vf "scale=-1:480" output.mp4 # Scale height, keep ratio
ffmpeg -i input.mp4 -ss 0 -t 5 -vf "fps=10,scale=320:-1" output.gif
# Create file list: file 'clip1.mp4'\nfile 'clip2.mp4'
ffmpeg -f concat -safe 0 -i filelist.txt -c copy output.mp4
ffmpeg -i input.mp3 -af "volume=1.5" louder.mp3 # Increase volume
ffmpeg -i input.mp3 -af "atempo=1.5" faster.mp3 # Speed up audio
ffmpeg -i input.mp4 -an output_silent.mp4 # Remove audio
ffprobe -v quiet -print_format json -show_format -show_streams input.mp4
-c copy when possible to avoid re-encoding (much faster)ffprobe to inspect files before processing-y flag to overwrite output without prompting-hide_banner to reduce noisy output-preset ultrafast for quick encodes, -preset slow for quality/dev/null and use -progress pipe:1 for parseable progressffmpeg -y -hide_banner -i input.mov -c:v libx264 -crf 23 -preset medium -c:a aac -b:a 128k output.mp4
ffprobe -v quiet -show_entries format=duration -of csv=p=0 input.mp4