[mikepalmer]

aider https://aider.chat/ basically does this already.

% aider

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> do this on command line: ffmpeg cat\ meets\ skunk.mp4 normalize audio without reencoding video to video2.mp4

To normalize the audio without re-encoding the video, we'll use ffmpeg's loudnorm filter and stream copy for video. Here's the command:

ffmpeg -i "cat meets skunk.mp4" -c:v copy -af loudnorm -c:a aac video2.mp4

This command:

• Uses -c:v copy to stream copy the video (no re-encoding) • Applies loudnorm filter to normalize audio • Re-encodes only the audio using AAC codec • Outputs to video2.mp4

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Run shell command? (Y)es/(N)o/(D)on't ask again [Yes]: