libwebp

mirror of https://github.com/webmproject/libwebp.git synced 2025-01-30 08:32:55 +01:00

History

Vincent Rabaud 828b4ce062 Switch ExtraCost to ints and implement it in SSE.

The histograms count the occurrences of len/dist in entropy images.
Those (at most (1<<14) by (1<<14)) are sub-sampled by at least
MIN_HUFFMAN_BITS == 2, hence at most 24 bits in a histogram value.
At most, we multiply by 19 (because the longest histogram is of
size 40 and we do 40>>1, cf code) for the bit cost. So it all fits
in 32 bits.

Change-Id: Ife24b035f54794851ff31f2fac07901f724c6d7f

2023-06-01 10:17:13 +02:00

dec

cpu.h: add WEBP_AARCH64

2023-05-02 12:28:50 -07:00

demux

libwebp{,demux,mux}.pc.in: Requires -> Requires.private

2023-01-17 18:32:44 -08:00

dsp

Switch ExtraCost to ints and implement it in SSE.

2023-06-01 10:17:13 +02:00

enc

Switch ExtraCost to ints and implement it in SSE.