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ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html#:~:text=2%20Description%20ffmpeg%20is%20a%20very%20fast%20video,the%20fly%20with%20a%20high%20quality%20polyphase%20filter.
FFmpeg to the Rescue: Muxing Audio and Video Files ...
https://streaminglearningcenter.com/learning/ffmpeg-to-the-rescue-muxing-audio-and-video-files.html
Interestingly, FFmpeg converted the MP3 audio to AAC and muxed the file without so much as an informational message. Just for fun, I converted audio.mp3 into a wav file and tried this: ffmpeg -i video.mp4 -i audio.wav -c:v copy -c:a copy muxed.mp4. As before, FFmpeg converted the WAV file to AAC and produced the muxed file.
FFMPEG mux video and audio (from another video) - …
https://stackoverflow.com/questions/12938581/ffmpeg-mux-video-and-audio-from-another-video-mapping-issue
I have a new command for merging audio to video . ffmpeg -i video.mp4 -i audio.mp4 -map 0.0 -map 1.0 -acodec copy -qscale 4 -vcodec mpeg4 outvideo.mp4 -qscale is option set quality to video of ffmpeg-acodec copy is option copy default quality of audio to output video-vcodec mpeg4 is option copy default quality of video to output video
How to merge audio and video file in ffmpeg - Super User
https://superuser.com/questions/277642/how-to-merge-audio-and-video-file-in-ffmpeg
If your audio or video stream is longer, you can add the -shortest option so that ffmpeg will stop encoding once one file ends. Copying the audio without re-encoding If your output container can handle (almost) any codec – like MKV – then you can simply copy both audio and video streams: ffmpeg -i video.mp4 -i audio.wav -c copy output.mkv
FFmpeg Mux Video and Audio from Two Videos - 2020
https://www.bogotobogo.com/FFMpeg/ffmpeg_mux_video_audio_from_two_videos.php
Suppose we want to mux one video file which has video (valid) and audio (not needed) with another audio file which has desirable audio. We can just follow the logic of the previous section, and the command for concatenation looks like this: $ ffmpeg -i SF.mp4 -i Two_BeSureToWearFlowersInYourHair.mp3 -c copy -map 0:0 -map 1:0 -shortest ...
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