ffmpeg overwrite output file if exists

Question

I ran:

ffmpeg -i input.flac output.mp3

This prompts:

File 'output.mp3' already exists. Overwrite? [y/N] y

How do I automatically say "yes"?

Solution 1

Use the -y option to automatically overwrite [docs]:

ffmpeg -y -i input.flac output.mp3

Solution 2

I need to add the -y global switch before specifying the output file to accomplish this

ffmpeg -i /audio/191079007530_1_01.flac -t 51 -ss 69 -y /clips/44z274v23303t264y2z2s2s2746454t234_clip.mp3 2>&1 >> /ffmpegLogs.log

Alternatively, you can use the -n option to deny overriding the file.

Solution 3

If there's someone using the ffmpeg-python wrapper, then you can use overwrite_output arg when running the stream.

stream = ffmpeg.input('dummy.mp4')
stream = ffmpeg.filter(stream, 'fps', fps=25, round='up')
stream = ffmpeg.output(stream, 'dummy2.mp4')
ffmpeg.run(stream, overwrite_output=True)

Comments

[llogan]

Alternatively there is also the -n option to automatically never overwrite files.

[Veer]

for YES -y and for NO -n.

[squarecandy]

It's perfectly fine to answer your own question, even right away. It helped me find the answer I was looking for - that's what SO is all about. meta.stackexchange.com/questions/17845/…

[TheKarateKid]

Link to relevant documentation for those interested: ffmpeg.org/ffmpeg.html#toc-Main-options

[cwongmath]

was looking for this exact thing, thanks!