50 lines
1.1 KiB
Python
Executable file
50 lines
1.1 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Very noddy script to count PIDs
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#
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import os, sys, time
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# Stats
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pids = {}
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pids_cc = {}
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pids_cc_err = {}
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# Open file
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fp = open(sys.argv[1])
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while True:
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tsb = fp.read(188)
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while tsb and tsb[0] != '\x47':
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tsb = tsb[1:] + fp.read(1)
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print 'skip1'
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if len(tsb) < 16:
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break
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tsb = map(ord, tsb[:16])
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if tsb[0] != 0x47:
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print 'sync err'
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continue
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# TODO: should re-sync
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pid = ((tsb[1] & 0x1f) << 8) | tsb[2]
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if pid not in pids:
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pids[pid] = 1
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else:
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pids[pid] += 1
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if pid == 0x1fff:
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continue
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cc = tsb[3]
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if cc & 0x10:
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cc &= 0x0f
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if pid in pids_cc and pids_cc[pid] != cc:
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print 'cc err 0x%x != 0x%x for pid %04X (%4d) %d' % (cc, pids_cc[pid], pid, pid, fp.tell())
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if pid not in pids_cc_err:
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pids_cc_err[pid] = 1
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else:
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pids_cc_err[pid] += 1
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pids_cc[pid] = (cc + 1) & 0x0f
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# Output
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ks = pids.keys()
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ks.sort()
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for k in ks:
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# if pids[k] <= int(sys.argv[2]): continue
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print '%04X (%4d) - %d (err %d)' % (k, k, pids[k], k in pids_cc_err and pids_cc_err[k] or 0)
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