Files
cheatsheet-tldr/tldr/mp4decrypt
2026-02-22 00:27:38 +00:00

23 lines
819 B
Plaintext

---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# mp4decrypt
> Decrypt an MP4 file.
> Part of the Bento4 tools.
> More information: <https://www.bento4.com/documentation/mp4decrypt/>.
- Decrypt a file using a specific key (key ID in hex, key in hex):
`mp4decrypt --key {{key_id_hex}}:{{key_hex}} {{path/to/input_file.mp4}} {{path/to/output_file.mp4}}`
- Decrypt a file using a specific key for a track ID (track ID in decimal, key in hex):
`mp4decrypt --key {{track_id}}:{{key_hex}} {{path/to/input_file.mp4}} {{path/to/output_file.mp4}}`
- Decrypt a file using multiple keys while displaying the progress of the decryption:
`mp4decrypt --key {{key_id_1}}:{{key_1}} --key {{key_id_2}}:{{key_2}} --show-progress {{path/to/input_file.mp4}} {{path/to/output_file.mp4}}`