Here's a command line that will slice to 30 seconds without transcoding:įfmpeg -t 30 -i inputfile.mp3 -acodec copy outputfile.mp3ĭo you need to cut video with re-encoding or without re-encoding mode? You can try to following below command. If you want to use the right channel, write 0.1.1 instead of 0.1.0. However the audio stream will have to be re-encoded.įfmpeg -i video.mp4 -map_channel 0.1.0 -c:v copy mono.mp4įfmpeg -i video.mp4 -map_channel 0.1.0 -map_channel 0.1.0 -c:v copy stereo.mp4 You can modify a video file directly without having to re-encode the video stream. $ ffmpeg -i example.mp4 -f webm -c:v libvpx -b:v 1M -acodec libvorbis example.webm -hide_bannerįfmpeg -i audio.xxx -c:a flac audio.flac Mix Stereo to Mono $ ffmpeg -f image2 -i image%d.jpg imagestovideo.mpg Convert mp4 to webm $ ffmpeg -i video.flv image%d.jpg Convert Images into a Video Ls * | perl -ne 'print 'file $_'' | ffmpeg -f concat -i -c copy merged.mp4 Split a Video into Images 130.5įile names in folder, if they contain spaces, must be properly escaped

Ss offset = frame number divided by FPS of video = the decimal (in milliseconds) ffmpeg needs i.e. $ ffmpeg -ss $1 -i $2 -qmin 1 -q:v 1 -qscale:v 2 -frames:v 1 -huffman optimal $3.jpg Where vf is a custom bash script as follows: You can get the list of supported formats with:Ĭonvert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:įfmpeg -i input.wav -ac 1 -ab 64000 -ar 22050 output.mp3Ĭonvert any MP3 file to WAV 16khz mono 16bit:įfmpeg -i 111.mp3 -acodec pcm_s16le -ac 1 -ar 16000 out.wavĬonvert any MP3 file to WAV 20khz mono 16bit for ADDAC WAV Player:įfmpeg -i 111.mp3 -acodec pcm_s16le -ac 1 -ar 22050 out.wavįor i in *.mp3 do ffmpeg -i '$i' -acodec pcm_s16le -ac 1 -ar 22050 '$.mp3' doneĮxtract Single Image from a Video at Specified Frame Minimal example: transcode from MP3 to WMA: Ffmpeg Converting Audio into Different Formats / Sample Rates

Ffmpeg extract audio from mp4 to mp3