MJP2 (.mjp2)
.mjp2 file signature | video/mj2
Magic Bytes
Offset 0
00 00 00 0C 6A 50 20 20 0D 0A 87 0A
Sources: Apache Tika
Extension
.mjp2
MIME Type
video/mj2
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .mjp2 files in Python
def is_mjp2(file_path: str) -> bool:
"""Check if file is a valid MJP2 by magic bytes."""
signature = bytes([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .mjp2 files in Node.js
function isMJP2(buffer: Buffer): boolean {
const signature = Buffer.from([0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A]);
return buffer.subarray(0, 12).equals(signature);
}How to validate .mjp2 files in Go
func IsMJP2(data []byte) bool {
signature := []byte{0x00, 0x00, 0x00, 0x0C, 0x6A, 0x50, 0x20, 0x20, 0x0D, 0x0A, 0x87, 0x0A}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
/api/v1/mjp2
curl https://filesignature.org/api/v1/mjp2
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .mjp2 file?
A .mjp2 file is a MJP2 file.
What are the magic bytes for .mjp2 files?
The magic bytes for MJP2 files are 00 00 00 0C 6A 50 20 20 0D 0A 87 0A at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .mjp2 file?
To validate a .mjp2 file, read the first bytes of the file and compare them against the known magic bytes (00 00 00 0C 6A 50 20 20 0D 0A 87 0A) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .mjp2 files?
The primary MIME type for .mjp2 files is video/mj2.
Is it safe to open .mjp2 files?
MJP2 (.mjp2) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.