rtp

from rtp import RTP, Extension, PayloadType from copy import deepcopy # Placeholder functions for demonstration, as 'rtp' is payload-agnostic def getExtStartBits(): return b'\x10\x00' def getExtBody(): return b'\x01\x02\x03\x04' def getCSRCList(): return [12345] def getNextPayload(): return b'\xDE\xAD\xBE\xEF' def transmit(rtp_packet): print(f"Transmitting: {rtp_packet.toBytearray().hex()}") def getNextPacket(): return bytes.fromhex('80e000000000000000000000100001020304deadbeef') def MyPayloadDecoder(payload_bytes): return f"Decoded payload: {payload_bytes.hex()}" def render(decoded_data): print(f"Rendering: {decoded_data}") # Encoding example baseRTP = RTP( marker=True, payloadType=PayloadType.DYNAMIC_96, # Using a common dynamic payload type for example extension=Extension( startBits=getExtStartBits(), headerExtension=getExtBody() ), csrcList=getCSRCList() ) # Initial packet thisRTPBitstream = baseRTP.toBytearray() print(f"Initial RTP Packet (hex): {thisRTPBitstream.hex()}") # Example of sending subsequent packets (simplified loop) nextRTP = deepcopy(baseRTP) nextRTP.sequenceNumber += 1 nextRTP.timestamp += 160 # Example increment for timestamp nextRTP.payload = getNextPayload() transmit(nextRTP) # Decoding example decoded_rtp_packet = RTP().fromBytearray(getNextPacket()) decodedPayload = MyPayloadDecoder(decoded_rtp_packet.payload) render(decodedPayload) print(f"Decoded Sequence Number: {decoded_rtp_packet.sequenceNumber}") print(f"Decoded Timestamp: {decoded_rtp_packet.timestamp}")