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+--- Thread: Dolphin uses ffmpeg to play / show the videos of the games? (/Thread-dolphin-uses-ffmpeg-to-play-show-the-videos-of-the-games)
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RE: Dolphin uses ffmpeg to play / show the videos of the games? - JMC47 - 12-06-2016
It's pretty crazy, I thought my laptop was just too old to play Dolphin.
RE: Dolphin uses ffmpeg to play / show the videos of the games? - degasus - 12-06-2016
(12-06-2016, 05:01 AM)nano351 Wrote: For anyone who stumbles upon this thread later, the source of the issue was mentioned in a recent blog post. The problem is from a bug in glibc: https://dolphin-emu.org/blog/2016/12/01/dolphin-progress-report-november-2016/
I had updated from ubuntu 14.04 -> 16.04 and compiled the latest dolphin source, and hadn't realized it could have been from a system library.
This issue was a not so funny week to debug :/
Fun fact: "-O3 -march=native" is fast, "-O2 -march=native" is slow. The difference is an unrolled but still unoptimized loop within VideoCommon which uses AVX256, and so resets the upper bits.