Hi, 2016-01-06 18:32 GMT+01:00 foo86 <fooba...@gmail.com>: > dca dca2 libdcadec > System 1: 0:11.90 0:11.16 0:19.73 > System 2: 0:57.00 0:55.23 1:21.33 > System 3: 7:41.31 7:00.84 13:16.70
Just to be sure, because I won't check myself: is this an apple-to-apple comparison for dca vs dca2? I mean, things like favorable/native output format, eg without conversion, etc ? > The new decoder appears slightly faster than dca even though it doesn't > use any assembly optimized code for dcadsp (besides synth_filter). synth_filter was in my benchmarks (2? years ago, on a non-avx2 system with 5.1 core dts) around 50% of the execution time. It's good that it can be reused, but people have "suffered" using dca without it for near a decade, so they'll probably handle waiting another decade for it to be rewritten if it needs to be. But the other parts of dcadsp are probably contributing less than 10%, so dca2 looks good. And anyhow, seeing the enthusiastic support for your version, performance is probably secondary to a lot of people. -- Christophe _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel