[FFmpeg-devel] [PATCH] lavu/riscv: Revert d808070, removing AV_READ_TIME

[Rémi Denis-Courmont]

Le sunnuntaina 28. heinäkuuta 2024, 20.10.51 EEST Nathan E. Egge a écrit :
> The implementation of ff_read_time() for RISC-V uses rdtime which has
>  precision on existing hardware too low (!) for benchmarking purposes.
> Deleting this implementation falls back on clock_gettime() which was
>  added as the default ff_read_time() implementation in 33e4cc9.

So the results seem fairly stable, unlike the Linux kperf cycle count, so I am 
fine with this.

Except that if we are switching to nanoseconds, the new FF_TIMER_UNITS value 
should be "ns", not "UNITS".

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