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schwehr / generic-sensor-format

Sonar Generic Sensor Format (gsf) codec
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history-empty.gsf crashes python gsf-dump-hex #74

Open schwehr opened 8 years ago

schwehr commented 8 years ago 
gsf-dump-hex history-empty.gsf 
c++ setup:

  #include <array>
  using std::array;

record:   0 HEADER
header:   0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x01
data:     0x47, 0x53, 0x46, 0x2D, 0x76, 0x30, 0x33, 0x2E, 0x30, 0x36, 0x00, 0x00
c++ data:

  // Record type: HEADER
  const uint32_t size_0 = 12;
  array<uint8_t, size_0> data_0 = {{
    0x47, 0x53, 0x46, 0x2D, 0x76, 0x30, 0x33, 0x2E, 0x30, 0x36, 0x00,
    0x00,
  }};
Traceback (most recent call last):
  File "/Users/schwehr/src/generic-sensor-format/ve/bin/gsf-dump-hex", line 9, in <module>
    load_entry_point('gsf==0.1', 'console_scripts', 'gsf-dump-hex')()
  File "/Users/schwehr/src/generic-sensor-format/gsf/dump_hex.py", line 73, in main
    DumpHex(filename)
  File "/Users/schwehr/src/generic-sensor-format/gsf/dump_hex.py", line 40, in DumpHex
    for record_num, record in enumerate(gsf_file):
  File "/Users/schwehr/src/generic-sensor-format/gsf/__init__.py", line 184, in __next__
    record.update(GsfHistory(data))
  File "/Users/schwehr/src/generic-sensor-format/gsf/__init__.py", line 102, in GsfHistory
    operator_size = struct.unpack('>I', data[base:base+4])[0]
struct.error: unpack requires a string argument of length 4