[FFmpeg-user] Removing a metadata tag from a specfic stream

[Thibeau]

I did that command you gave with video and than audio in that order checked it three times.
The metadata went to the audio not the video.
Feel free to test it yourself with the provided file.
Please let me know if it was my mistake and the command is correct when you execute it.

> On 7 Feb 2021, at 11:19, Paul B Mahol <onemda at gmail.com> wrote:
> 
> On Sun, Feb 7, 2021 at 12:59 AM MediaMouth <communque at gmail.com> wrote:
> 
>>> On Feb 6, 2021, at 3:32 PM, Paul B Mahol <onemda at gmail.com> wrote:
>>> 
>>> Can you share file?
>> Yes.  The O.P. made it available here: https://ufile.io/bgunj34e <
>> https://ufile.io/bgunj34e>
>> 
>>> 
>>> ffmpeg -i INPUT.png -i AUDIO.flac -map:v 0 -metadata comment=Other
>>> -disposition:v:0 attached_pic -map:a 1 -metadata album=test FINAL.flac
>>> 
>>> Note that metadata order is important. The command above adds comment
>>> metadata to video stream.
>> 
>> Thanks for posting.  Clear and helpful.  Unfortunately, I got an error
>> Here are the steps I did...
>> 
> 
> Your steps are all invalid. Why you put first audio then video?
> My command only works with first video stream and after that audio stream.
> In ffmpeg every item position matters.
> 
> 
>> ffmpeg -i '29 My Girl.flac' -an -vcodec copy '29 My Girl.png'; #Extract
>> the album art to an external file.
>> ffmpeg -i '29 My Girl.flac' -map 0 -map -0:v:0 -c copy '29 My
>> Girl-NoArt.flac'; #Remove the album art, save results to a new .flac file.
>> ffmpeg -i '29 My Girl-NoArt.flac' -i '29 My Girl.png' -map:v 0 -metadata
>> comment=SomethingOtherThanOther -disposition:v:0 attached_pic -map:a 1
>> -metadata comment= '29 My Girl-ReArt.flac'; #Add the album art back using
>> the metadata commands as you suggest, and store to yet another .flac file.
>> Error received:  [swscaler @ 0x7f9648038000] deprecated pixel format used,
>> make sure you did set range correctly
>> 
>> 
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