ffmpeg

121013 commits 38 branches 415 tags 263 MiB

Author	SHA1	Message	Date
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	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

Author

SHA1

Message

Date

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

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

Renamed from libavcodec/x86/lpc.c (Browse further)

2 commits