问题
FFMPEG is really a great tool. I know it can edit ID3 tags and even remove all tags in a row :
ffmpeg -i tagged.mp3 -map_metadata -1 untagged.mp3
But even after that, there's still the cover image.
I don't know how to remove it using ffmpeg. I know there's other soft out there that can do the job - like eyed3 - but what's the point to install it if ffmpeg can do it too, in one line, while encoding the audio ?
回答1:
The cover image/album art is treated as a video stream by ffmpeg. To omit it you can use the -vn or -map options.
Strip metadata and remove album art (no re-encoding)
In this example the audio is being stream copied (re-muxed) instead of being re-encoded. This is faster and will not degrade the quality:
ffmpeg -i tagged.mp3 -vn -codec:a copy -map_metadata -1 out.mp3
Same as above but using -map instead of -vn
Or you could use the -map option to explicitly choose the streams. Using -map 0:a tells ffmpeg to only select the audio stream(s) from input 0 (the first input and the only input in your case):
ffmpeg -i tagged.mp3 -map 0:a -codec:a copy -map_metadata -1 out.mp3
I prefer -map because it is very flexible.
回答2:
I've tried to use codes provided by LordNeckbeard, none of them worked for my case. But this one worked:
ffmpeg -i tagged.mp3 -acodec copy -map 0 -map_metadata 0:s:0 notags.mp3
It shows now only one tag, 'TSSE' (means Encoder). Also, very recommend this article, if you want to manipulate ID3 tags using ffmpeg:
How To: Create/Write ID3 tags using ffmpeg
回答3:
I try something like :
ffmpeg -i file.mp3 -ab 128k -ac 2 -ar 44100 -map 0:a -map_metadata -1 -sn -vn -y output.mp3
and have always cover on output.
回答4:
I tried llogan's solution with a small castle.mp3 file and found out that its size increased from 4448 to 4797 bytes! Further inspection in Audacity revealed that the signal has been slightly "delayed" as well - however the length of the file [castle2.mp3] remained the same.
After that, I used id3v2 -D castle.mp3 to delete all mp3 tags from the file, and the filesize went down to 4320 bytes, with no other noticeable (undesired) changes.
来源：https://stackoverflow.com/questions/20193065/how-to-remove-id3-audio-tag-image-or-metadata-from-mp3-with-ffmpeg