Decode UDP streaming data from panda

decode.py

import struct
import binascii
import csv

with open('output.bin', mode='rb') as file: # b is important -> binary
  dat = file.read()

  ret = []
  for j in range(0, len(dat), 0x10):
    ddat = dat[j:j+0x10]
    f1, f2 = struct.unpack("II", ddat[0:8])
    extended = 4
    if f1 & extended:
      address = f1 >> 3
    else:
      address = f1 >> 21
      
    frame = f2>>16
    data = ddat[8:8+(f2&0xF)]
    data_text = binascii.hexlify(data)
    bus = (f2>>4)&0xFF
    ret.append((address, frame, data_text, bus))    

with open("output.csv", "wb") as f:
    writer = csv.writer(f)
    writer.writerows(ret)