Society of Motion Picture and Television Engineers
image/x-dpx
Magic Bytes
Offset: 0
53 44 50 58
Digital Picture Exchange (DPX) is a raster image format standardized by the Society of Motion Picture and Television Engineers (SMPTE). It is primarily utilized in motion picture post-production, visual effects, and digital intermediate workflows to store uncompressed, frame-based image data. Derived from the legacy Kodak Cineon format, DPX files are generally considered safe because they consist of static pixel information and metadata without support for executable code or embedded scripts.
Validation Code
How to validate .dpx files in Python
Python
def is_dpx(file_path: str) -> bool:
"""Check if file is a valid DPX by magic bytes."""
signature = bytes([0x53, 0x44, 0x50, 0x58])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .dpx files in Node.js
Node.js
function isDPX(buffer: Buffer): boolean {
const signature = Buffer.from([0x53, 0x44, 0x50, 0x58]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsDPX(data []byte) bool {
signature := []byte{0x53, 0x44, 0x50, 0x58}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/dpx
curl https://filesignature.org/api/v1/dpx