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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-01-19 05:49:09 +02:00
FFmpeg/libavutil
Lynne 98b32ef462
x86/tx_float: save a branch during coefficient deinterleaving
Directly branch into the special 64-point deinterleave
subroutine rather than going through the general deinterleave.

64-point transform timings on Zen 3:
Before:
   1974 decicycles in           av_tx (fft),16776864 runs,    352 skips
After:
   1956 decicycles in           av_tx (fft),16775378 runs,   1838 skips
2022-08-09 03:35:12 +02:00
..
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