Did some googling and with the help of this Gist, I came up with a few solutions. I have a video with two audio streams that I wanted to extract the audio for however, because there were two audio streams, I had to merge them into one. be sure to convert/specify DTS 6 channel audio streamįfmpeg -i input.mkv -strict experimental -map 0:0 -map 0:1 -c:v copy -c:a:1 libmp3lame -b:a 192k -ac 6 output.mp4Īdd Watermark overlay (png) to the center of a videoįfmpeg -i source.mov -i watermark.png -filter_complex "overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2" output.mp4įfmpeg -i vid.mp4 -vf reverse reversed.mp4Ĭoncat a video with a reversed copy of itself for ping-pong looping effectįfmpeg -i input.mp4 -filter_complex "reverse,fifo concat=n=2:v=1 " -map "" output.mp4Ĭonvert to different frame rate while preserving audio syncįfmpeg -i input.mkv -map "0:m:language:eng" -map "-0:v" -map "-0:a" output.srt Make a grayscale version and scale to 640x480 Convert MP4 to WEBMįfmpeg -i input.mp4 -c:v libvpx-vp9 -crf 31 -b:v 1M output.webmĬheck for streams that you want (video/audio). Very little change in video quality.įfmpeg -i video.mov -vf eq=saturation=0 -s 640x480 -c:v libx264 -crf 24 output.mp4 If you want to cut off section from the beginning, simply drop -t 00:00:10 from the command reduce filesizeįfmpeg -i input.mov -vcodec libx264 -crf 24 output.mp4 Use ffmpeg cut mp4 video with re-encodingįfmpeg -i source.mp4 -ss 00:00:05 -t 00:00:10 -async 1 -strict -2 cut_video.mp4
Synopsis: ffmpeg -i -ss -t use ffmpeg cut mp4 video without re-encodingįfmpeg -i source.mp4 -ss 00:00:05 -t 00:00:10 -c copy cut_video.mp4 You can get the list of installed codecs 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 "$i" -acodec pcm_s16le -ac 1 -ar 22050 "$-fade.wav" doneĭo you need to cut video with re-encoding or without re-encoding mode? You can try to following below command. You can get the list of supported formats with: Minimal example: transcode from MP3 to WMA: Ffmpeg Converting Audio into Different Formats / Sample Rates
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