CR3.py

A CR3 file format parser written in Python

CR3 File Structure

FTYP - File Type Box.

Offset	Type	Size	Content
0	Int	4	ftyp length
4	Str	4	ftyp tag
8	Int	4	Major Brand
12	Int	4	Minor Version
16	Str	4	N/A
20	Str	4	N/A

moov - Container box whose sub-boxes define the metadata for a presentation.

Offset	Type	Size	Content
0	Int	4	moov length
4	str	4	moov tag
8	Int	4	uuid length
12	Int	4	uuid tag
16	Int	8:12	uuid data

uuid - XPacket data.

Offset	Type	Size	Content
0	Int	4	XPacket data length
4	Str	4	uuid tag
8	Int	0:4	uuid

uuid - Preview data.

Offset	Type	Size	Content
0	Int	4	Preview data length
4	Str	4	uuid tag
8	Int	0:4	uuid

mdat - Main data.

Credits

• lclevy -> canon_cr3