MPEG transport streamfile
application/octet-stream
Magic Bytes
Offset: 0
47 46 31 50 41 54 43 48
MPEG transport stream file is a specialized data container format derived from standards established by the Moving Picture Experts Group for managing system updates and patches. This format is primarily utilized in embedded systems and automotive multimedia units to distribute firmware corrections and software enhancements to integrated hardware. Although the format is considered safe for general storage, it is frequently used in critical system maintenance, necessitating verification of file source authenticity to avoid potential device instability.
Validation Code
How to validate .tsa files in Python
Python
def is_tsa(file_path: str) -> bool:
"""Check if file is a valid TSA by magic bytes."""
signature = bytes([0x47, 0x46, 0x31, 0x50, 0x41, 0x54, 0x43, 0x48])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .tsa files in Node.js
Node.js
function isTSA(buffer: Buffer): boolean {
const signature = Buffer.from([0x47, 0x46, 0x31, 0x50, 0x41, 0x54, 0x43, 0x48]);
return buffer.subarray(0, 8).equals(signature);
}
Go
func IsTSA(data []byte) bool {
signature := []byte{0x47, 0x46, 0x31, 0x50, 0x41, 0x54, 0x43, 0x48}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
GET
/api/v1/tsa
curl https://filesignature.org/api/v1/tsa