Can N_m3u8DL-RE be used just to decrypt an m3u8 list?

[Frankss]

Hi, I know N_m3u8DL-RE download and decrypt but I downloaded a live streaming without providing the --key option.
How can I decrypted it? I know the keyid/key.

The resulting files are:

[Attachment 77723 - Click to enlarge]
The first folder contains the video and the second the audio chunks:

[Attachment 77735 - Click to enlarge]

[Attachment 77737 - Click to enlarge]
I tried to decrypt one chunk/segment with mp4decrypt but didn't work, even tried with openssl.

[shellcmd]

first combine all m4s files, use command:

in video folder:

copy /b _init.mp4+*.m4s output.mp4

in audio folder:

copy /b _init.mp4+*.m4s output.m4a

then you can use shaka-packager or mp4decrypt to decrypt video and audio, and merge to a final.mp4 use ffmpeg or final.mkv use mkvmerge.

attention that your video folder, i dont know why the m4s file name with '_dec' when you not provided decryption key. so if not work, you can try

copy /b _init_dec.mp4+*.m4s output.mp4

[Frankss]

first combine all m4s files, use command:

in video folder:

copy /b _init.mp4+*.m4s output.mp4

in audio folder:

copy /b _init.mp4+*.m4s output.m4a

then you can use shaka-packager or mp4decrypt to decrypt video and audio, and merge to a final.mp4 use ffmpeg or final.mkv use mkvmerge.

attention that your video folder, i dont know why the m4s file name with '_dec' when you not provided decryption key. so if not work, you can try

copy /b _init_dec.mp4+*.m4s output.mp4

It worked!!, "i dont know why the m4s file name with '_dec' when you not provided decryption key." Sorry that wasn't the image, edited.

I was racking my brain trying to decrypt them individually. Just out of curiousity, this is the file corresponding to video:

#EXTM3U
#EXT-X-VERSION:6
#EXT-X-TARGETDURATION:6
#EXT-X-PLAYLIST-TYPE:EVENT
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-PROGRAM-DATE-TIME:2024-03-10T17:19:56.899Z
#EXT-X-KEY:METHOD=SAMPLE-AES-CTR,KEYFORMAT="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed",KEYFORMATVERSIONS="1",URI="data:text/plain;base64,AAAAMnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAABISEMLfwSCHWkius481X4OwC1g="
#EXT-X-KEY:METHOD=SAMPLE-AES-CTR,KEYFORMAT="com.microsoft.playready",KEYFORMATVERSIONS="1",URI="data:text/plain;charset=UTF-16;base64,xAEAAAEAAQC6ATwAVwBSAE0ASABFAEEARABFAFIAIAB4AG0AbABuAHMAPQAiAGgAdAB0AHAAOgAvAC8AcwBjAGgAZQBtAGEAcwAuAG0AaQBjAHIAbwBzAG8AZgB0AC4AYwBvAG0ALwBEAFIATQAvADIAMAAwADcALwAwADMALwBQAGwAYQB5AFIAZQBhAGQAeQBIAGUAYQBkAGUAcgAiACAAdgBlAHIAcwBpAG8AbgA9ACIANAAuADAALgAwAC4AMAAiAD4APABEAEEAVABBAD4APABQAFIATwBUAEUAQwBUAEkATgBGAE8APgA8AEsARQBZAEwARQBOAD4AMQA2ADwALwBLAEUAWQBMAEUATgA+ADwAQQBMAEcASQBEAD4AQQBFAFMAQwBUAFIAPAAvAEEATABHAEkARAA+ADwALwBQAFIATwBUAEUAQwBUAEkATgBGAE8APgA8AEsASQBEAD4ASQBNAEgAZgB3AGwAcQBIAHIAawBpAHoAagB6AFYAZgBnADcAQQBMAFcAQQA9AD0APAAvAEsASQBEAD4APAAvAEQAQQBUAEEAPgA8AC8AVwBSAE0ASABFAEEARABFAFIAPgA="
#EXT-X-KEY:METHOD=SAMPLE-AES-CTR,KEYFORMAT="PRMNAGRA",KEYFORMATVERSIONS="1",URI="data:text/plain;base64,eyJrZXktaWQiOiJjMmRmYzEyMC04NzVhLTQ4YWUtYjM4Zi0zNTVmODNiMDBiNTgiLCJlbWkiOiJjdHIiLCJwcm0iOiJleUpqYjI1MFpXNTBTV1FpT2lKamRISWlMQ0pyWlhsSlpDSTZJbU15Wkdaak1USXdMVGczTldFdE5EaGhaUzFpTXpobUxUTTFOV1k0TTJJd01HSTFPQ0o5In0="
#EXT-X-MAP:URI="map.mp4"
#EXTINF:5.005,
070/17/20/11_914.mp4
#EXTINF:5.005,
070/17/20/16_919.mp4
#EXTINF:5.005,
070/17/20/21_924.mp4
...

The files downloaded by N_m3u8DL-RE are _init.mp4 plus .m4s files, does N_m3u8DL-RE just change the format to them?

Thank's so much

[shellcmd]

I don't think N_m3u8DL-RE change file format, maybe only change file extension from .mp4 to .m4s , init.mp4 is the first segments, it will never change, always _init.mp4 comes from N_m3u8DL-RE