Protocol scope and method
The parser reads the standard 12-byte RTP base header and reports CSRC count, extension and padding flags without decoding extensions.
RTP base header = 12 bytes + 4 bytes per CSRC.
Diagnostic scenario
Paste the first bytes of a redacted RTP packet from a known UDP flow. Decode version, extension, CSRC count, marker, payload type, sequence, timestamp and SSRC, then use CSRC and extension flags to calculate the actual payload offset.
How to interpret the result
Twelve bytes is only the base header. CSRC entries, header extensions and padding change the packet layout. Payload type is profile-specific and does not by itself identify a codec without the negotiated SDP or transport profile.
Input reference
- RTP packet hex
- Example default: Sample input included
Common mistakes
- Using an unredacted production capture with vehicle, credential or network identifiers.
- Assuming every RTP payload begins at byte 12.
- Treating a successfully parsed sample as standards compliance or interoperability proof.
Before using the result
- Confirm the protocol edition, transport framing and vendor profile before interpreting fields.
- Use SDP or profile configuration to interpret payload type and clock.
- Keep a redacted known-good and known-bad sample as a regression pair.
Questions to check during diagnosis
Does the RTP Header Decoder leave my browser?
No application upload is used. Avoid putting sensitive production data in shareable URLs.
Is this a standards compliance test?
No. Confirm the edition and vendor profile with licensed documents and your target platform.
Offline diagnostic aid. Verify fields, version and vendor extensions before production use.