Mp4decrypt error

[Av4K100]

Currently struggling with decrypting a download from itvx my commands are as follows:
mp4decrypt --key 2ab9cdcc7d8540a78a75f04c8816c702:702e61f28b4383edf 7aeed7364b74fd8 itvv.mp4 itvv_dec.mp4
mp4decrypt --key 2ab9cdcc7d8540a78a75f04c8816c702:702e61f28b4383edf 7aeed7364b74fd8 itvv.m4a itva_dec.mp4
ffmpeg -i itvv_dec.mp4 -i itva_dec.mp4 -c copy itv.mp4

Which returns:
ERROR: cannot open input file (itvv.mp4) -4

Any help would be greatly appreciated

[codehound]

Explorer > View > Tick 'File name extensions' box

Check your filenames again - show screenshot

And put your syntax within code tags to avoid gap showing in your key

[Sorenb]

Currently struggling with decrypting a download from itvx my commands are as follows:
mp4decrypt --key 2ab9cdcc7d8540a78a75f04c8816c702:702e61f28b4383edf 7aeed7364b74fd8 itvv.mp4 itvv_dec.mp4
mp4decrypt --key 2ab9cdcc7d8540a78a75f04c8816c702:702e61f28b4383edf 7aeed7364b74fd8 itvv.m4a itva_dec.mp4
ffmpeg -i itvv_dec.mp4 -i itva_dec.mp4 -c copy itv.mp4

Which returns:
ERROR: cannot open input file (itvv.mp4) -4

Any help would be greatly appreciated

What did you use to download the files?
in your above code, you've not paid attention to your input and output filenames
second line

 itvv.m4a itva_dec.mp4

should be

 itva.m4a itva_dec.m4a

and your ffmpeg should be

ffmpeg -i itvv_dec.mp4 -i itva_dec.m4a -c copy itv.mp4

Also, the error means it literally can not find a file named itvv.mp4
So again, and very importantly, what it the initial download method you used? (yt/yt-dlp/n-m3u8xxxxxx/magic!!)

[Av4K100]

Thank you both the file extension was incorrect (.mp4.mp4), after renaming correctly and retrying i've managed to decrypt the file

[codehound]

Am I in Groundhog Day ?

[Sorenb]

Am I in Groundhog Day ?

Learning to play the piano to impress Andie MacDowell? It's possible. Feb 2nd is Groundhog Day, soo.....

I'm wondering why there are now two threads with the exact same error appearing.