ffmpeg command line quickies…..

Home / CLI / ffmpeg command line quickies…..

Here are a bunch of ffmpeg command lines that will do just about everything you need.

  1. Getting info from a video file
  2. ffmpeg -i video.avi

  3. Turn a sequence of images into video
  4. ffmpeg -f image2 -i image%d.jpg video.mpg

  5. Turn a video into a sequence of images
  6. ffmpeg -i video.mpg image%d.jpg

  7. Encode video for Ipod/IPhone
  8. ffmpeg -i source_video_file.avi -acodec aac -ab 128kb -vcodec mpeg4 -b 1200kb -mbd 2 -flags +4mv -trell 1 -aic 2 -cmp 2 -subcmp 2 -s 320x180 -title X output_file.mp4

  9. Encode video for PSP
  10. ffmpeg -i source_video_file.avi -b 300 -s 320x240 -vcodec xvid -ab 32 -ar 24000 -acodec aac output_file.mp4ORffmpeg -i "OriginalFile.avi" -f psp -r 29.97 -b 768k -ar 24000 -ab 64k -s 320x240 "OutputFile.mp4"

  11. Extract audio from a video file and save it as mp3 format
  12. ffmpeg -i source_video_file.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 output_file.mp3

  13. Convert a wave file to mp3
  14. ffmpeg -i original_audio_file.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 output_file.mp3

  15. Convert a avi video to mpeg
  16. ffmpeg -i original_movie.avi output_file.mpg

  17. Convert a mpeg video to avi
  18. ffmpeg -i original_movie.mpg output_file.avi

  19. Convert a avi video to uncompressed animated gif
  20. ffmpeg -i original_movie.avi output_file.gif

  21. Add audio to an existing video-only file (mix audio and video)
  22. ffmpeg -i son.wav -i original_movie.avi output_file.mpg

  23. Convert a avi video to flv (flash video)
  24. ffmpeg -i original_movie.avi -ab 56 -ar 44100 -b 200 -r 15 -s 320x240 -f flv output_file.flv

  25. Convert a flv video to mpeg
  26. ffmpeg -i myFile.flv -ab 56 -ar 22050 -b 500 -s 320x240 myFile.mpg

  27. Convert a avi video to dv
  28. ffmpeg -i original_movie.avi -s ntsc -r ntsc -aspect 4:3 -ar 48000 -ac 2 output_file.dvORffmpeg -i original_movie.avi -target ntsc-dv output_file.dv

  29. Convert a avi video to mpeg specifically for DVD creation
  30. ffmpeg -i source_video.avi -target ntsc-dvd -ps 2000000000 -aspect 16:9 finale_video.mpeg

  31. Compress a avi video to Divx
  32. ffmpeg -i original_movie.avi -s 320x240 -vcodec msmpeg4v2 output_file.avi

  33. Convert a Ogg Theora video to mpeg specifically for DVD creation
  34. ffmpeg -i original_movie.ogm -s 720x576 -vcodec mpeg2video -acodec mp3 output_file.mpg

  35. Convert a avi video to mpeg2 for SVCD creation
  36. ffmpeg -i original_movie.avi -target ntsc-svcd output_file.mpg

  37. Convert a avi video to mpeg2 for VCD creation
  38. ffmpeg -i original_movie.avi -target ntsc-vcd output_file.mpg

21 Comments

  • Anonymous

    One very important thing I just learned after two hours – I cannot write a .BAT file with “ffmpeg -i video.mpg image%d.jpg” and then run the batch file. If I do, I get the message “Unable to find a suitable output format for ‘imaged.jpg’. Instead, I must type that command on the actual command line prompt. At least, that’s how it works for me on Windows XP. Please let other people know about this potential pitfall.

  • daveh

    These are very helpful. I have a question. When creating a slideshow from jpg files, is it possible to specify the duration each image will remain displayed? What are the other options for this feature, ie. crossfading, etc.

    Thank you,
    David Hudach

  • Anonymous

    @ first “Anonymous”:

    I lost four hours!!!
    Thanks to you, now it working fine.

  • mbb

    Hi Many,

    I hope you can help me out. I use ffmpeg to convert .avi to .mpg. I have created a movie in matlab, used movie2avi command to put it into .avi format, and then use the basic ffmpeg -i input.avi output.mpg. The .mpg file plays in mplayer, yet it has no color, is slanted, and has the effect of playing next to a reflective mirror. Its really weird. Any help is much appreciated. Thanks.

    MB

  • Many

    Hi Mbb,

    I would first of all try using vlc (www.videolan.org) to play both the avi file and the mpg file and see if that works. It might be the avi file that's flawed. Is there an option to output individual frames out of matlab. Because then you can use ffmpeg to "stitch" the frames directly to a mpg file. Sounds like movie2avi is using a avi codec that ffmpeg has trouble decoding.

    TTYL
    Many

    Hope this helps….

    TTYL
    Many

  • mbb

    Many,
    Thanks, your idea worked out very well. I converted the frames to images, then to jpegs, then used ffmpeg to get the mpg file. ~mbb

  • mbb

    Hi Many,
    So, I have one more small (hopefully) issue. I need to lower the default fps (-r) from 25 to 4 fps. I know I have to also change the bit rate (-b), yet whatever I input, ffmpeg does not like the ratio. Shed some light? Thanks again.
    ~mbb

  • Many

    Mbb,

    Hmmm, gald you got the other part working. About framerates I think you want to go the otherway. You see, you really want to use -r on input and set it to 4 and use -r on output and set it to 15 or 30. That way the encoder will "hold" a single image for 0.25sec in the encoder buffer (rather than 1/30th of a sec), but still encode it for 30 frame playback. In essence you'll be repeating the same input file for 0.25sec rather than 1/30th of a sec. Don't know if this makes sense.

    I don't think you need to change the bitrate thisway.

    Hope this helps…..

    TTYL
    Many

  • gaamaa

    Can ffmpeg write a 32bit avi from png/tga image sequence ?
    ffmpeg -i Ball_%3d.tga -vcodec rawvideo -pix_fmt bgra ball.avi

    The above cmd fails, And I could write mpg file, but no Alpha in that.
    Can some one show me a successfull cmd line ?

    Thanks
    gaamaa

  • Many

    Sorry Gaamaa I have no idea……Maybe someone else can fill in the answer here…..

  • Michael

    What a great resource! I have very little experience with FFmpeg, but using your site I managed learn quite a bit. For some reason i had an .avi that would not convert to an .mpg, so I cut it up into a bunch of jpegs, then reassebled the jpegs into an .mpg – worked like a charm, but i lost the audio, so i extracted the audio from the original .avi and added it to the new .mpg and it worked excpet the video and audio do not match up… Thanks for the great resource here.

  • SkaRootz

    Thank you very much, I wasn't realizing that creating an animated gif was that easy ffmpeg -i input.swf -r 1 output.gif

  • Anonymous

    Thanks dude! your sequence of images example was exactly what I was looking for.

  • Anonymous

    I have a gif animation. Any idea how to convert it to flash video or swf?

  • Many

    Hi Anonymous,

    Making flash video out of a animated gif? Hmmm, not sure…..I will take a look around and see if I can figure it out…..check back in about a week or so to see if I've added something to this article.

    TTYL
    Many

  • rafhelp@yahoo.co.uk

    does the -r flag for setting frame rate have a minimum value need? i tried using 0.044 but it not work

  • Many

    rafhelp,

    Not sure what you mean. Minimum frame rate value would be 1, wouldn't it? what is 0.044 supposed to represent?

  • cangrejero

    First place where I've been where the info is not only useful, but presented in a visually pleasing manner. Congrats!

    I've tried to work with the ffmpeg command line ffmpeg -i filename.mpg filename.avi. Although it does the conversion, the ".avi" file video quality sucks. I've tried adding other parameters to no avail. I'm about to surrender.

    Could anyone tell me how to improve my video quality? Any guidance appreciated. Thanks!!!

Leave a Reply