Quick code to locate discontinuities in a test capture file.

gistfile1.py

#!/usr/bin/env python

import sys
import numpy

f = open(sys.argv[1], 'rb')

d = f.read(2)
test_data = numpy.arange(-128, 126, dtype=numpy.int8)

n = 2
last_n = 2
while True:
	d = numpy.fromfile(f, dtype=numpy.int8, count=254)
	if len(d) != 254:
		break
	if numpy.array_equal(d, test_data) != True:
		print('%d: %d' % (n, n - last_n))
		last_n = n
		while f.read(1) != '\x7d':
			n += 1
		n += 1
	n += len(d)