Erroneous speed on BD-R scan #1
Description
$ ./qscan -d F: -t errc
qScan 0.8.0 (C) 2007-2009 Gennady "ShultZ" Kozlov
qscan: using device 'F:': 'HL-DT-ST' 'BD-RE WH16NS58 ' '1.V5'
ID: Supported write modes: Packet TAO SAO SAO/RAW SAO/16 SAO/96R SAO/96P RAW/16 RAW/96R RAW/96P LayerJump
qscan: Device not found in any plugin support list, trying to probe...
qscan: using plugin: LITEON
IM: ERRC data : LDC BIS UNCR
Running BD Error Correction test at speed 12...
Testing 12219345 sectors: 0 - 12219344
lba | speed | LDC BIS | UNCR
cur : 12288 | -477218.59 X -2147483648 kB/s | 0 0 | 0
This is the case because scan is done so fast than gettimeofday doesn't have an high-enough resolution to properly compute speed.
We should use clock_gettime instead.