Clément Bœsch f61379cbd4 lavu/timer.h: add Linux Perf API support ...

Refer to "checkasm: use perf API on Linux ARM*" commit for the
rationale.

The implementation is somehow duplicated with checkasm, but so is the
current usage of AV_READ_TIME(). Until these implementations and
heuristics are made consistent, I don't see a way of sharing that code.

Note: when using libavutil/timer.h, it is now important to include
before any other include due to the _GNU_SOURCE requirement.

2017-09-08 18:51:05 +02:00

5.7 KiB

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