Olivier Langlois e205429fcf tools: Use av_gettime_relative
Whenever av_gettime() is used to measure relative period of time,
av_gettime_relative() is prefered as it guarantee monotonic time
on supported platforms.

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-10-24 09:53:43 +03:00
..
2014-10-24 09:53:43 +03:00