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How to Convert AVI to MP4 using FFmpeg? Lossy ... - OTTVerse
https://ottverse.com/ffmpeg-convert-avi-to-mp4-lossless/#:~:text=ffmpeg%20-i%20input_filename.avi%20-c%3Av%20copy%20-c%3Aa%20copy%20-y,AVI%20container%20format%20to%20the%20MP4%20container%20format.
Audio Transcoding using FFmpeg - Change Audio Codecs using ...
https://ottverse.com/transcode-audio-codec-ffmpeg-without-changing-video/
Transcoding Audio using FFmpeg (Change Audio Codecs Without Changing the Video) read the input file named input_filename.avi that is in an avi media container that holds both the audio and video. copy the video content as is using the -vcodec copy parameter (no video re-encoding), use mp3 audio ...
How to replace a video's audio with FFMPEG - Flying Sound
https://flyingsound.net/about/articles/replace-video-audio-ffmpeg/
The short answer is install FFMPEG and use this command: ffmpeg -i source_video.mp4 -i source_audio.wav -acodec copy -vcodec copy -map 0:v:0 -map 1:a:0 final_video.mov. Now lets break it down. MacOS. FFMPEG is a a terminal program, so you’ll need to go to the Utillities folder inside of the applications folder and install homebrew. Then:
Replacing video audio using ffmpeg | Ochre
https://ochremusic.com/2016/07/05/replacing-video-audio-using-ffmpeg/
Firstly, if you'd like to strip the audio from a video file, you can use this command: ffmpeg -i INPUT.mp4 -codec copy -an OUTPUT.mp4 Specifying the INPUT and OUTPUT files accordingly, with file extension (needless to say, it doesn't have to be .mp4). -i precedes the file you wish to strip the audio from.
How to add a new audio (not mixing) into a video using …
https://stackoverflow.com/questions/11779490/how-to-add-a-new-audio-not-mixing-into-a-video-using-ffmpeg
Replace audio. ffmpeg -i video.mp4 -i audio.wav -map 0:v -map 1:a -c:v copy -shortest output.mp4 The -map option allows you to manually select streams / tracks. See FFmpeg Wiki: Map for more info.; This example uses -c:v copy to stream copy (mux) …
replacing MP3 audio in AVI file : ffmpeg
https://www.reddit.com/r/ffmpeg/comments/q10voi/replacing_mp3_audio_in_avi_file/
replacing MP3 audio in AVI file. I have an AVI video file with an audio stream in MP3/128k format and I have a single MP3/128k file of the same duration I would like to put into this AVI instead of original one. Both MP3 streams have the same size so the size of AVI file should not change after this operation. I'm using this command: ffmpeg -i input.avi -i input.mp3 -map_metadata -1 -map …
Using ffmpeg to change framerate - Stack Overflow
https://stackoverflow.com/questions/45462731/using-ffmpeg-to-change-framerate
ffmpeg -itsscale 1.0416667 -i "input file" -filter:a atempo="24/25" -codec:a ac3 -b:a 640k -vcodec copy -codec:s copy "output file" where I used the ac3 audio codec at a bitrate of 640K and the expression "24/25" which is allowed here :NOTE: the 24/25 is the inverse of the itsscale value of 25/24(=1.0416667)
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