Janne Grunau <[email protected]> writes: > On 2011-12-20 17:25:42 -0800, Ronald S. Bultje wrote: >> >> Missing #else fallback? (Can simply default to 1.) > > I had that first but it will break passing 0 to x264, although it may > be a safe assumption that if our autodetection fails, x264 will also > default to 1 thread.
The best value for x264 is not the number of CPUs, and it knows better what works best for the settings in use. The number CPUs is also not always the best number of threads for us. Especially frame-based threading benefits from having a few more threads than CPUs. On 2 CPUs, 4 threads are often needed to fully saturate the system. -- Måns Rullgård [email protected] _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
