Digital Picture Exchange

import magic
print(magic.from_file('frame.dpx', mime=True)) # May output 'image/x-dpx'

const FileType = require('file-type');
const type = await FileType.fromFile('frame.dpx');
console.log(type.mime); // Typically requires custom parsing for 'SDPX' / 'XPDS'

import "net/http"

// net/http lacks DPX support. Check for magic bytes:
if bytes.HasPrefix(buf, []byte("SDPX")) || bytes.HasPrefix(buf, []byte("XPDS")) {
    fmt.Println("image/dpx")
}

$mime = mime_content_type('frame.dpx');
echo $mime; // Standard server configurations often fall back to 'application/octet-stream'