21 Jan 2022, 09:51 by d...@lynne.ee: > 21 Jan 2022, 09:33 by d...@lynne.ee: > >> This commit rewrites the internal transform code into a constructor >> that stitches transforms (codelets). >> This allows for transforms to reuse arbitrary parts of other >> transforms, and allows transforms to be stacked onto one >> another (such as a full iMDCT using a half-iMDCT which in turn >> uses an FFT). It also permits for each step to be individually >> replaced by assembly or a custom implementation (such as an ASIC). >> >> Patch attached. >> > > Forgot that I disabled double and int32 transforms to speed up > testing, reenabled locally and on my github tx_tree branch. > Also removed some inactive debug code. > https://github.com/cyanreg/FFmpeg/tree/tx_tree >
I fixed bugs and improved to code more, and I think it's ready for merging now. The rdft is no longer bound by any convention, and its scale may be changed by the user, eliminating after-transform multiplies that are used pretty much everywhere in our code. If someone (looks at Paul) gives it a test or converts a filter, would be nice. I've only tested it on my synthetic benchmarks: https://github.com/cyanreg/lavu_fft_test I plan to push the patchset tomorrow unless there are comments. Mostly done with the aarch64's SIMD, patch coming soon, hopefully. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
