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support/pid-count.py: add code for cc errors

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This commit is contained in:
Jaroslav Kysela 2014-06-17 13:24:49 +02:00
parent c8543600ef
commit 627473b8f9
1 changed files with 18 additions and 4 deletions
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22
support/pid-count.py
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@ -7,6 +7,8 @@ import os, sys, time
# Stats
pids = {}
pids_cc = {}
pids_cc_err = {}
# Open file
fp = open(sys.argv[1])
@ -15,17 +17,29 @@ while True:
if len(tsb) < 16:
break
tsb = map(ord, tsb[:16])
if tsb[0] != 0x47: continue
if tsb[0] != 0x47:
print 'sync err'
continue
# TODO: should re-sync
pid = ((tsb[1] & 0x1f) << 8) | tsb[2]
if pid not in pids:
pids[pid] = 1
else:
pids[pid] = pids[pid] + 1
pids[pid] += 1
cc = tsb[3]
if cc & 0x10:
cc &= 0x0f
if pid in pids_cc and pids_cc[pid] != cc:
print 'cc err 0x%x != 0x%x for pid %04X (%4d) %d' % (cc, pids_cc[pid], pid, pid, fp.tell())
if pid not in pids_cc_err:
pids_cc_err[pid] = 1
else:
pids_cc_err[pid] += 1
pids_cc[pid] = (cc + 1) & 0x0f
# Output
ks = pids.keys()
ks.sort()
for k in ks:
if pids[k] <= int(sys.argv[2]): continue
print '%04X (%4d) - %d' % (k, k, pids[k])
# if pids[k] <= int(sys.argv[2]): continue
print '%04X (%4d) - %d (err %d)' % (k, k, pids[k], k in pids_cc_err and pids_cc_err[k] or 0)