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How is Opus decoding performance coming along compared to Vorbis? I'd love to use Opus in my mobile games (which need more simultaneous channels than the phone
by corysama 10y ago
How is Opus decoding performance coming along compared to Vorbis? I'd love to use Opus in my mobile games (which need more simultaneous channels than the phone's one hardware decoder). But, decode perf is a serious concern. Even decoding once on load is serious business because it affects start-up time and/or frame rate hitching.
- mastax 10y agoThis mailing list post has some old numbers: http://lists.xiph.org/pipermail/opus/2014-September/002706.html http://lists.xiph.org/pipermail/opus/2014-September/002706.h... The "tremolo decoder" is an ARM optimized Ogg Vorbis decoder. Note this is from before 1.1.1 and 1.1.3 (above) which each contained ARM optimizations so perhaps quite a bit better?
- TD-Linux 10y agoIt is slower than Vorbis, but faster than AAC. On my 900MHz rpi2, decoding at 48khz uses about 10% of one core, so you should be alright.