Quote:
Originally Posted by Selur
Main show stoppers for me with xvc are atm.
a. no decoding through libav/ffmpeg
b. terribly slow encoding
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I do agree regarding the lack of ffmepg integration. But, for speed, with lower resolutions at leaast (haven't tested higher yet), it isn't so bad for the quality it produces.
Here is a quick test on my i7-3770k, Win 7 x64 PC of a 10 second, 428x240 clip using Timer 3.01 from Igor Pavlov (author of 7-Zip) for accurate timings:
Code:
PSNR SSIM TIME CODEC / OPTIONS
================================================================
44.845179 0.983561 252.955s libaom-av1 -b:v 100K -cpu-used 4
46.537460 0.988025 334.294s xvcenc -qp 25 -speed-mode 2
45.024133 0.983995 444.758s libaom-av1 -b:v 100K -cpu-used 3
And here is the same clip at 480p (854x480):
Code:
PSNR SSIM TIME CODEC / OPTIONS
================================================================
47.507486 0.990071 1179.726 libaom-av1 -b:v 300K -cpu-used 4
47.905909 0.991473 1237.431 xvcenc -qp 25 -speed-mode 2
47.662076 0.990272 1939.154 libaom-av1 -b:v 300K -cpu-used 3
Obviously this is just one 10s clip at a very low resolution. But for my me, these results are pretty good.