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A quick guide to using FFmpeg to convert media files ...
https://opensource.com/article/17/6/ffmpeg-convert-media-file-formats#:~:text=It%20can%20be%20very%20time%20consuming%20to%20re-encode,encodes%20the%20Vorbis%20audio%20stream%20into%20a%20FLAC.
Re-encode video stream only with ffmpeg (and with all ...
https://stackoverflow.com/questions/39685629/re-encode-video-stream-only-with-ffmpeg-and-with-all-audio-streams
ffmpeg -i in.mkv -vf scale=hd720 -map 0 -c copy -c:v libx265 out.mkv To encode audio as well, ffmpeg -i in.mkv -vf scale=hd720 -map 0 -c copy -c:v libx265 -c:a aac out.mkv (The order of the arguments above matter)
ffmpeg: re-encode a video, keeping settings similar ...
https://superuser.com/questions/1056599/ffmpeg-re-encode-a-video-keeping-settings-similar
ffmpeg -i input.mp4 -c:v libx264 -crf 18 -preset slow -c:a copy output.mp4 This example stream copies the audio instead of re-encoding it since the majority of the file size comes from video. Development is very active, so make sure to use a recent build of ffmpeg. See the FFmpeg Download page for links to binaries. Also see: FFmpeg Wiki: H.264 Video
Audio Transcoding using FFmpeg - Change Audio Codecs using ...
https://ottverse.com/transcode-audio-codec-ffmpeg-without-changing-video/
ffmpeg -i input_filename.avi -acodec mp3 -vcodec copy output_filename.avi Here, you are instructing FFmpeg to. 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 codec to re-encode the audio
How to use FFMpeg to do Simple Audio Conversion
https://www.howtoforge.com/tutorial/ffmpeg-audio-conversion/
ffmpeg -i filename.mp3 newfilename.wav newfilename.ogg newfilename.mp4. This will result in converting 3 output audio files (wav,ogg,mp4) from one mp3 file. Alternatively, you can set the desired codec using the -c command like this: ffmpeg -i filename.mp4 c:a libopus newfilename.ogg
Would like to change audio codec, but keep video settings ...
https://superuser.com/questions/215430/would-like-to-change-audio-codec-but-keep-video-settings-with-ffmpeg
If you just want to change the audio and/or video codec(s) you could just add them as parameters like so: Just change the audio codec to mp3 (what ever the original codec was) ffmpeg -i input.avi -vcodec copy -acodec mp3 out.avi Just change the video codec to h264. ffmpeg -i input.avi -vcodec h264 out.avi
How to Remove Audio from Video using FFmpeg. Bonus: Add ...
https://ottverse.com/add-remove-extract-audio-from-video-using-ffmpeg/
Now, let’s take a different use case where you might want to re-encode the audio after extracting it. Here’s how to extract the audio from the video using FFmpeg and then encoding it to a different quality level using libmp3lame and storing it as an mp3 file. ffmpeg.exe -i videoWithAudio.mp4 -vn -c:a libmp3lame -q:a 1 onlyAudio.mp3
FFmpeg - openSUSE Wiki
https://en.opensuse.org/FFmpeg
If you want to re-encode the audio: ffmpeg -i video.mp4 -i audio.mp3 -c:v copy -c:a aac output.mp4 If the video already has audio but you want to replace it: ffmpeg -i video.mp4 -i audio.mp3 -c:v copy -c:a aac -map 0:v:0 -map 1:a:0 output.mp4 -c copy: copy both audio and video, without re-encoding-c:v copy: copy video, without re-encoding
A quick guide to using FFmpeg to convert media files ...
https://opensource.com/article/17/6/ffmpeg-convert-media-file-formats
The same can be done to change the video as well as the audio stream: ffmpeg-i input.mp4 -c:v vp9 -c:a libvorbis output.mkv. This will make a Matroska container with a VP9 video stream and a Vorbis audio stream, essentially the same as the WebM we made earlier. The command ffmpeg -codecs will print every codec FFmpeg knows about. The output of this …
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