search

c2pa-org / specifications

The public specifications for the C2PA
Creative Commons Attribution 4.0 International
92 stars 8 forks source link

Are there any open-source reference implementations? #17

Open nealmcb opened 2 years ago

nealmcb commented 2 years ago

Multiple independent implementations are often required to promote interoperable standards. Thank you!

lrosenthol commented 2 years ago

Adobe and the Content Authenticity Initiative (CAI) recently released an open source implementation at https://opensource.contentauthenticity.org/

NOTE: this is NOT a reference implementation, but is certainly a valid implementation.

We look forward to other implementations - either full or partial - in the future.

gregorym commented 6 months ago

Now that we're in 2024, any other references we can look at?

lrosenthol commented 6 months ago

@gregorym For a read-only one, ExifTool (https://exiftool.org/) is an option. You can also use pretty much as ISOBMFF library - such as ones in Python, JavaScript, C++, etc.

However, AFAIK, the CAI library is the only writing one available as open source.