On Mon, Feb 09, 2015 at 06:35:08PM +0100, Clément Bœsch wrote: [...] > • I added many debug utils (understand: dead code) in palettegen which is > very useful for debugging and error checking. I'd like to keep them if no > one mind. For example, it allows generating pictures such as > https://lut.im/uqeEiTF3/zscEoFRw to debug the lookup color 3d tree.
I transformed most of them into options. I'll send a new patch when this is completely done. And for the record, here are the benchmark of the different search algorithms: [~/src/ffmpeg]☭ for i in 1 2 3; do time ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi paletteuse=dither=sierra2_4a:color_search=nns_iterative -y out-dither-sierra2_4a.gif; done ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 8.29s user 0.04s system 102% cpu 8.110 total ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 8.23s user 0.05s system 101% cpu 8.185 total ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 8.29s user 0.04s system 99% cpu 8.345 total [~/src/ffmpeg]☭ for i in 1 2 3; do time ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi paletteuse=dither=sierra2_4a:color_search=nns_recursive -y out-dither-sierra2_4a.gif; done ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 8.63s user 0.03s system 102% cpu 8.443 total ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 8.70s user 0.01s system 100% cpu 8.704 total ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 8.62s user 0.04s system 99% cpu 8.691 total [~/src/ffmpeg]☭ for i in 1 2 3; do time ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi paletteuse=dither=sierra2_4a:color_search=bruteforce -y out-dither-sierra2_4a.gif; done ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 29.45s user 0.04s system 100% cpu 29.301 total ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 29.35s user 0.04s system 99% cpu 29.430 total ./ffmpeg -v error -i legend.m4v -i palette.png -lavfi - 29.59s user 0.05s system 100% cpu 29.424 total (i7-3520M, 6 seconds video in 512x512; and yes, this is slower than real time.) -- Clément B.
pgpGvS8E5GH90.pgp
Description: PGP signature
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
