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FFmpeg recipe : combine separate audio and video - LinuxPip
https://linuxpip.org/ffmpeg-combine-audio-video/#:~:text=If%20your%20video%20file%20already%20contains%20one%20or,the%20input%2Finputs%20to%20be%20included%20in%20the%20output%2Foutputs.
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:
ffmpeg - replace audio in video - Super User
https://superuser.com/questions/1137612/ffmpeg-replace-audio-in-video
You will want to copy the video stream without re-encoding to save a lot of time but re-encoding the audio might help to prevent incompatibilities: ffmpeg -i v.mp4 -i a.wav -c:v copy -map 0:v:0 -map 1:a:0 new.mp4. -map 0:v:0 maps the first (index 0) video stream from the input to the first (index 0) video stream in the output. -map 1:a:0 maps the second (index 1) audio stream from …
FFmpeg: replacing audio in live video stream - Stack …
https://stackoverflow.com/questions/59767925/ffmpeg-replacing-audio-in-live-video-stream
I'm using FFmpeg to encode and live-stream video captured through a DeckLink capture card. The video from the card comes with an audio stream, but I want to replace the audio stream with another. This other audio stream originates from the same source but is ran through an audio processor that adds a fixed delay. The audio is fed back in the pc ...
Replacing video audio using ffmpeg | Ochre
https://ochremusic.com/2016/07/05/replacing-video-audio-using-ffmpeg/
Similarly, you could use -vn to remove a video stream instead. Then you can add your audio track by typing: ffmpeg -i INPUT.mp4 -i AUDIO.wav -shortest -c:v copy -c:a aac -b:a 256k OUTPUT.mp4. As you can see, I have two input streams to be muxed together, the silent video file and the audio wav, to the output file at the end of the command.
How to replace the audio in a video with the audio from ...
https://dev.to/dak425/how-to-replace-the-audio-in-a-video-with-the-audio-from-another-video-with-ffmpeg-2ob8
The -vn option before the input means ignore the video stream. This will give us only the audio stream for this file. It also speeds up the command by avoiding having to read the video stream.-map [0:v] -map [1:a] The -map options make it so that we explicitly tell ffmpeg what streams of data to write out to the output, instead of it just figuring it out. This may have not …
ffmpeg replace part of audio file with looped audio ...
https://stackoverflow.com/questions/34019410/ffmpeg-replace-part-of-audio-file-with-looped-audio
Works (One replacement): "ffmpeg.exe" -y -i "first.wav" -i "second.wav" -filter_complex "[1:a][1:a][1:a]concat=n=3:v=0:a=1,asetpts=PTS-STARTPTS[replaceBase];[0:a]atrim=0:3,asetpts=PTS-STARTPTS[partA];[replaceBase]atrim=0:2,asetpts=PTS …
ffmpeg to replace audio track? - VideoHelp Forum
https://forum.videohelp.com/threads/355650-ffmpeg-to-replace-audio-track
Hello Using ffmpeg.exe N-52045-g694fa00 "built on Apr 12 2013 16:54:51 with gcc 4.8.0 (GCC)", I followed tutorials (here and here) about how to use ffmpeg to replace the audio track in an FLV file, but I couldn't get this to work. Here's the original FLV...
How to Remove Audio from Video using FFmpeg. Bonus: …
https://ottverse.com/add-remove-extract-audio-from-video-using-ffmpeg/
How to Remove a Specific Audio Track using FFmpeg. For removing a specific audio track using FFmpeg, you can always use the map command. The general syntax of the map command is -map input_file_index:stream_type_specifier:stream_index. So, you could select the 2nd audio track of the video by saying -map 0:a:1 because the numbering starts at 0.
Ffmpeg – replace audio in video – iTecTec
https://itectec.com/superuser/ffmpeg-replace-audio-in-video/
Best Answer. You will want to copy the video stream without re-encoding to save a lot of time but re-encoding the audio might help to prevent incompatibilities: ffmpeg -i v.mp4 -i a.wav -c:v copy - map 0 :v: 0 - map 1 :a: 0 new .mp4. -map 0:v:0 maps the first (index 0) video stream from the input to the first (index 0) video stream in the output. -map 1:a:0 maps the second (index 1) audio …
Replacing an Audio Stream using FFMPEG | jmah.net
http://main.jmah.net/?p=785
This is another example of using FFMPEG to manipulate video and audio files. In this case, one would like to replace the second audio stream in a video file by another audio file. Here is the command you may want to try: ffmpeg -i video.mkv -i audio.mp3 -map 0:v -map 0:a:0 -map 1:a -codec copy output.mkv.
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