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FFmpeg is a powerful command-line tool for working with multimedia files, including video editing and manipulation. It offers a wide range of commands and options for editing videos. Here are some useful FFmpeg commands for video editing:

1. Convert Video Formats:

   • Convert from one video format to another.

   bash
   ffmpeg -i input.mp4 output.avi
   

2. Change Video Resolution:

   • Change the resolution of a video.

   bash
   ffmpeg -i input.mp4 -vf scale=1280:720 output.mp4
   

3. Trim/Cut Video:

   • Cut a specific portion from a video.

   bash
   ffmpeg -i input.mp4 -ss 00:00:10 -t 00:00:30 -c copy output.mp4
   

4. Concatenate/Join Videos:

   • Join multiple videos into one.

   bash
   ffmpeg -f concat -i filelist.txt -c copy output.mp4
   

5. Add Watermark:

   • Add a watermark image or text to a video.

   bash
   ffmpeg -i input.mp4 -i watermark.png -filter_complex "overlay=10:10" output.mp4
   

6. Change Video Speed:

   • Change the playback speed of a video.

   bash
   ffmpeg -i input.mp4 -vf "setpts=0.5*PTS" output.mp4
   

7. Extract Audio:

   • Extract audio from a video.

   bash
   ffmpeg -i input.mp4 -vn -acodec copy output.mp3
   

8. Merge Video and Audio:

   • Combine a video and audio file.

   bash
   ffmpeg -i video.mp4 -i audio.mp3 -c:v copy -c:a aac -strict experimental output.mp4
   

9. Rotate Video:

   • Rotate a video by a specified angle (90, 180, or 270 degrees).

   bash
   ffmpeg -i input.mp4 -vf "transpose=1" output.mp4
   

10. Add Subtitles:

    • Add subtitles to a video.

    bash
    ffmpeg -i input.mp4 -vf "subtitles=sub.srt" output.mp4
    

11. Resize Video Aspect Ratio:

    • Resize a video while preserving the aspect ratio.

    bash
    ffmpeg -i input.mp4 -vf "scale=640:480:force_original_aspect_ratio=decrease" output.mp4
    

12. Change Video Bitrate:

    • Adjust the video bitrate to control file size and quality.

    bash
    ffmpeg -i input.mp4 -b:v 1000k output.mp4
    

These are just some of the many video editing tasks you can perform using FFmpeg. Make sure to replace input.mp4, output.mp4, and other parameters with your actual file names and settings. FFmpeg's flexibility allows for extensive video editing and manipulation, but the commands can be complex, so be sure to consult the FFmpeg documentation for more details and advanced options.

13. Extract Frames as Images:

    • Extract frames from a video as individual image files.

    bash
    ffmpeg -i input.mp4 -vf "select='gte(n\,10)',setpts=N/TB" frame%d.png
    

14. Create a Video Slideshow:

    • Create a video slideshow from a series of images.

    bash
    ffmpeg -framerate 24 -i image%d.jpg -c:v libx264 -r 30 output.mp4
    

15. Add Audio to a Video:

    • Combine a video with an audio track.

    bash
    ffmpeg -i video.mp4 -i audio.mp3 -map 0 -map 1 -c:v copy -c:a aac -strict experimental output.mp4
    

16. Remove Audio from a Video:

    • Strip audio from a video file.

    bash
    ffmpeg -i input.mp4 -an output.mp4
    

17. Change Video Codec:

    • Transcode a video to a different codec.

    bash
    ffmpeg -i input.mp4 -c:v h264 -c:a aac output.mp4
    

18. Extract a Portion of Video as GIF:

    • Create a GIF animation from a specific part of a video.

    bash
    ffmpeg -ss 00:00:10 -t 5 -i input.mp4 -vf "fps=10,scale=320:-1" output.gif
    

19. Adjust Video Brightness, Contrast, and Saturation:

    • Modify video visual properties.

    bash
    ffmpeg -i input.mp4 -vf "eq=brightness=1.2:contrast=1.5:saturation=1.2" output.mp4
    

20. Extract a Specific Audio Channel:

    • Extract a particular audio channel (e.g., stereo left).

    bash
    ffmpeg -i input.mp4 -map_channel 0.0.0 left.wav
    

21. Apply Video Filters:

    • Apply various video filters for effects like blurring, sharpening, and more.

    bash
    ffmpeg -i input.mp4 -vf "boxblur=5:1" output.mp4
    

22. Speed Up/Slow Down Video with Audio Pitch Preservation:

    • Alter video speed while preserving audio pitch.

    bash
    ffmpeg -i input.mp4 -vf "setpts=0.5*PTS" -filter:a "atempo=2.0" output.mp4
    

23. Split Video into Equal Parts:

    • Divide a video into smaller parts of equal duration.

    bash
    ffmpeg -i input.mp4 -c copy -map 0 -segment_time 00:05:00 -f segment output%d.mp4
    

Remember that FFmpeg offers an extensive set of commands and options for video editing and manipulation.

24. Overlay Multiple Videos:

    • Combine multiple videos with overlays.

    bash
    ffmpeg -i video1.mp4 -i video2.mp4 -filter_complex "[0:v][1:v]overlay=W-w-10:H-h-10[out]" -map "[out]" output.mp4
    

25. Change Video Playback Speed with Audio Pitch Correction:

    • Adjust video playback speed while correcting the audio pitch.

    bash
    ffmpeg -i input.mp4 -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" -map "[v]" -map "[a]" output.mp4
    

26. Remove a Specific Audio Stream:

    • Remove a specific audio stream from a video with multiple audio tracks.

    bash
    ffmpeg -i input.mp4 -map 0 -map -0:a:1 output.mp4
    Reverse a Video:
    Reverse the frames of a video to play it backward.
    bash
    ffmpeg -i input.mp4 -vf reverse output.mp4
    Add a Border or Padding:
    Add a border or padding to a video to change its aspect ratio or size.
    bash
    ffmpeg -i input.mp4 -vf "pad=width:height:x:y:color" output.mp4
    Change Video Aspect Ratio:
    Modify the aspect ratio of a video by cropping or padding.
    bash
    ffmpeg -i input.mp4 -vf "crop=640:480" output.mp4
    Extract Audio from a Video with Specific Codec:
    Extract audio from a video and specify the audio codec.
    bash
    ffmpeg -i input.mp4 -vn -acodec pcm_s16le output.wav
    Adjust Audio Volume:
    Change the volume of an audio stream in a video.
    bash
    ffmpeg -i input.mp4 -af "volume=1.5" -c:v copy output.mp4
    Remove Subtitles:
    Remove subtitles or captions from a video.
    bash
    ffmpeg -i input.mp4 -scodec mov_text -an output.mp4
    Extract Metadata:
    Extract and display metadata information from a video.
    bash
    ffmpeg -i input.mp4 -f ffmetadata metadata.txt
    Change Frame Rate:
    Modify the frame rate of a video.
    bash
    ffmpeg -i input.mp4 -r 30 output.mp4