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HEVC performance

Discussions about problems encountered using ffplay.
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HEVC performance

Postby csdesigns » Thu Sep 29, 2016 9:27 pm

I am curious if there is any way to improve decode performance of HEVC/H.265 in ffplay on mac?

I am running ffplay version 3.1.3 but all of my HEVC/H.265 media plays back at below 100% speed. In general, I see dropped frames and stuttered performance for all videos of at least 1080p60 and higher. I have tried compiling ffplay using brew and yasm, but have also experienced the same issues with other publicly available binaries I have downloaded. So far, I have found mpv to offer the best decode performance (the only player that can decode UHDp60 smoothly) for HEVC Main10 content. But I have also just discovered that ffplay is the only player that can display true 10bit video on my displays. All other 'players' I have tested (including mpv, and not referring to editors such as FCPX) display 10bit source material as 8bit.

It is crucial for my testing to have a high-performance HEVC decoder that can display 10bit source videos accurately. If there are any mods or switches that I should be aware of, I'd very much appreciate that insight! I am running Mac OS X 10.11.6 on a 4GHz iMac 5K Late 2015 with 32GB RAM and AMD M395X connected to the internal display and a LG 27MU67-B. Thanks in advance for any assistance that can be provided.
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