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Resource Interchange File Format -- QualcommPureVoice (.qcp)

.qcp file signature | application/octet-stream

Resource Interchange File Format -- QualcommPureVoice, wherexx xx xx xxis the file size (little endian)

Safe

Magic Bytes

Offset 0
52 49 46 46 51 4C 43 4D

Sources: Wikipedia

All Known Signatures

2 signature variants are documented for .qcp files across multiple sources.

Hex Signature Offset Sources
52 49 46 46 51 4C 43 4D 0 Wikipedia
52 49 46 46 51 4C 43 4D 66 6D 74 20 0 Gary Kessler

Extension

.qcp

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .qcp files in Python

Python
def is_qcp(file_path: str) -> bool:
    """Check if file is a valid QCP by magic bytes."""
    signature = bytes([0x52, 0x49, 0x46, 0x46, 0x51, 0x4C, 0x43, 0x4D])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .qcp files in Node.js

Node.js
function isQCP(buffer: Buffer): boolean {
  const signature = Buffer.from([0x52, 0x49, 0x46, 0x46, 0x51, 0x4C, 0x43, 0x4D]);
  return buffer.subarray(0, 8).equals(signature);
}

How to validate .qcp files in Go

Go
func IsQCP(data []byte) bool {
    signature := []byte{0x52, 0x49, 0x46, 0x46, 0x51, 0x4C, 0x43, 0x4D}
    if len(data) < 8 {
        return false
    }
    return bytes.Equal(data[:8], signature)
}

API Endpoint

GET /api/v1/qcp
curl https://filesignature.org/api/v1/qcp

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .qcp file?

A .qcp file is a Resource Interchange File Format -- QualcommPureVoice file. Resource Interchange File Format -- QualcommPureVoice, wherexx xx xx xxis the file size (little endian)

What are the magic bytes for .qcp files?

The magic bytes for Resource Interchange File Format -- QualcommPureVoice files are 52 49 46 46 51 4C 43 4D at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .qcp file?

To validate a .qcp file, read the first bytes of the file and compare them against the known magic bytes (52 49 46 46 51 4C 43 4D) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .qcp files?

There is no officially registered MIME type for .qcp files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .qcp files?

Resource Interchange File Format -- QualcommPureVoice (.qcp) 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.