ffmpeg can be used to easily convert audio or video files on any OS – Windows, Linux, or Mac.
Common ffmpeg Parameters
- -i <filename> – PathFilename of source file
- -y – Overwrite the existing output file without prompting
- -an – Disable audio
Video Related ffmpeg Parameters
- -aspect <aspect ratio> – Set Aspect Ratio for the video (4:3, 16:9 or 1.3333, 1.7777)
- -r <rate> – Set frame rate in Hz for the video
- -s <size> – Set video resolution size (Width x Height)
- -sameq – Use same video quality as source
Audio Related ffmpeg Parameters
- -ar <rate> – Set audio sampling rate (in Hz)
- -acodec <codec> – Force audio codec, example mp3
- -vol <volume> – Change audio volume (256=normal)
- -ab <rate> – Set audio bit rate (in bits/s)
Advanced ffmpeg Parameters
- -map_meta_data output file:<input file> – Copy the metadata from input file to converted output file
ffmpeg Command Line Syntax
ffmpeg –i <input filename> <output filename>
ffmpeg Video Examples:
- Converting MOV to FLV using FFMPEG:
ffmpeg -i movie.mov movie.flv
- Converting Mpeg to FLV using FFMPEG:
ffmpeg -i movie.mpeg movie.flv
- Converting AVI to FLV using FFMPEG – convert movie.avi to movie.flv and resize the video resolution to 500×500:
ffmpeg -i movie.avi -s 500×500 movie.flv
- Converting 3GP to FLV using FFMPEG – convert movie.3gp to movie.flv, keep the original file settings and disable the audio content:
ffmpeg -i movie.3gp -sameq -an movie.flv
- Converting MPEG to 3GP using FFMPEG:
ffmpeg -i movie.mpeg -ab 8.85k -acodec libamr_wb -ac 1 -ar 16000 -vcodec h263 -s qcif movie2.3gp
ffmpeg Audio Examples:
- Converting aac to mp3 using FFMPEG with MetaData – convert audio.aac to audio.mp3 with an audio rate of 22.05 Khz and audio BitRate of 32Khz, and will copy the metadata from .aac file to .mp3 file:
ffmpeg -i audio.aac -ar 22050 -ab 32 -map_meta_data audio.mp3:audio.aac audio.mp3
- Converting WMV to MP3 using FFMPEG
ffmpeg -i audio.wmv audio.mp3
- Converting WMV to FLV using FFMPEG – convert audio.wmv to audio.flv, generating only audio content:
ffmpeg -i audio.wmv audio.flv
- Converting AMR to MP3 using FFMPEG – convert audio.amr to audio.mp3, with an audio rate of 22.05 Khz:
ffmpeg -i audio.amr -ar 22050 audio.mp3
- Converting aac to mp3 using FFMPEG – convert audio.aac to audio.mp3, with an audio rate of 22.05 Khz and audio BitRate or 32Khz:
ffmpeg -i audio.aac -ar 22050 -ab 32 audio.mp3
Download ffmpeg.exe for Windows (direct link) (8.5MB)
More:
ffmpeg windows 7, vista, windows 2008