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Use only 12 bits for the temperature.

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When using all 16 bits for the temperature, the resulting values are
clearly wrong in some cases. Most likely the upper 4 bits are used to
store something else. Even with only 12 bits, the resulting temperature
range (0-409.5°C) should still be more than sufficient.
This commit is contained in:
Jef Driesen 2013-07-16 08:46:49 +02:00
parent b4250ef74d
commit 5c16b28fb9
1 changed files with 1 additions and 1 deletions
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src/mares_iconhd_parser.c
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@ -237,7 +237,7 @@ mares_iconhd_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callback_t
if (callback) callback (DC_SAMPLE_DEPTH, sample, userdata);
// Temperature (1/10 °C).
unsigned int temperature = array_uint16_le (data + offset + 2);
unsigned int temperature = array_uint16_le (data + offset + 2) & 0x0FFF;
sample.temperature = temperature / 10.0;
if (callback) callback (DC_SAMPLE_TEMPERATURE, sample, userdata);