decoding ais msg 5

example decode of message5

cat > foo.ais << EOF
!BSVDM,2,1,9,A,55QI<002A9>7<Hm3F20Lht84j085V2222222221?BpDA:7<h,0*03
!BSVDM,2,2,9,A,0GPQC30PFH8888888888880,2*5C
EOF

ais_normalize.py -a -T foo.ais > foo.ais.norm
cat foo.ais.norm

!BSVDM,1,1,9,A,55QI<002A9>7<Hm3F20Lht84j085V2222222221?BpDA:7<h0GPQC30PFH8888888888880,2*5A
./noaadata/ais/ais_msg_5.py -d '!BSVDM,1,1,9,A,55QI<002A9>7<Hm3F20Lht84j085V2222222221?BpDA:7<h0GPQC30PFH8888888888880,2*5A'
shipdata:
	MessageID:        5
	RepeatIndicator:  0
	UserID:           370560000
	AISversion:       0
	IMOnumber:        9512161
	callsign:         3FMP5
	name:             GLOBAL BAY
	shipandcargo:     79
	dimA:             151
	dimB:             20
	dimC:             17
	dimD:             10
	fixtype:          1
	ETAmonth:         12
	ETAday:           25
	ETAhour:          16
	ETAminute:        0
	draught:          9.4
	destination:      BELLBAY
	dte:              0
	Spare:            0

cd libais
make -f Makefile-custom python2
find . -name \*.so
./build/lib.macosx-10.8-x86_64-2.7/ais.so

export PYTHONPATH=./build/lib.macosx-10.8-x86_64-2.7

ipython
Python 2.7.6 (default, Nov 17 2013, 16:05:36)

In [1]: import ais

In [2]: ais.decode('55QI<002A9>7<Hm3F20Lht84j085V2222222221?BpDA:7<h0GPQC30PFH8888888888880')
---------------------------------------------------------------------------
error                                     Traceback (most recent call last)
<ipython-input-2-96fc8c8f20e2> in <module>()
----> 1 ais.decode('55QI<002A9>7<Hm3F20Lht84j085V2222222221?BpDA:7<h0GPQC30PFH8888888888880')

error: Ais5: AIS_ERR_BAD_BIT_COUNT

In [3]: ais.decode('55QI<002A9>7<Hm3F20Lht84j085V2222222221?BpDA:7<h0GPQC30PFH8888888888880', 2)
Out[3]:
{u'ais_version': 0L,
 u'callsign': u'3FMP5  ',
 u'destination': u'BELLBAY             ',
 u'dim_a': 151L,
 u'dim_b': 20L,
 u'dim_c': 17L,
 u'dim_d': 10L,
 u'draught': 9.399999618530273,
 u'dte': 0L,
 u'eta_day': 25L,
 u'eta_hour': 16L,
 u'eta_minute': 0L,
 u'eta_month': 12L,
 u'fix_type': 1L,
 u'id': 5L,
 u'imo_num': 9512161L,
 u'mmsi': 370560000L,
 u'name': u'GLOBAL BAY          ',
 u'repeat_indicator': 0L,
 u'spare': 0L,
 u'type_and_cargo': 79L}