4 Commits

Author	SHA1	Message	Date
James Almer	a1c6f4b653	tests/checkasm/lpc: randomize buffer length ... Simplifies the test, while trying more values and preventing pointlessly running benchmarks in a loop. Signed-off-by: James Almer <jamrial@gmail.com>	2022-09-22 18:17:26 -03:00
James Almer	c8c4a162fc	avcodec/lpc: use ptrdiff_t for length parameters ... Signed-off-by: James Almer <jamrial@gmail.com>	2022-09-22 18:17:26 -03:00
Lynne	b67776e12f	x86/lpc: fix even scalar loop overreads/writes ... Passes checkasm with valgrind, tested to sizes of more than 4000 samples.	2022-09-22 04:27:19 +02:00
Lynne	3ade6a8644	x86/lpc: implement a new Welch windowing function ... Old one was written with the assumption only even inputs would be given. This very messy replacement supports even and odd inputs, and supports AVX2 for extra speed. The buffers given are usually quite big (4k samples), so the speedup is worth it. The new SSE version is still faster than the old inline asm version by 33%. Also checkasm is provided to make sure this monstrosity works. This fixes some FATE tests.	2022-09-21 07:12:39 +02:00