From 5f0067652be8773ddcc7142831c63f4484873df2 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 16 Oct 2024 14:39:20 +0200 Subject: [PATCH] avcodec/rangecoder: only perform renorm check/loop for callers that need it Signed-off-by: Michael Niedermayer (cherry picked from commit d147b3d7ecba2bd40cb45284f920238da97a95ee) Signed-off-by: Michael Niedermayer --- libavcodec/rangecoder.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/libavcodec/rangecoder.h b/libavcodec/rangecoder.h index 44af88b8f5..3e1b14b5cb 100644 --- a/libavcodec/rangecoder.h +++ b/libavcodec/rangecoder.h @@ -54,7 +54,6 @@ void ff_build_rac_states(RangeCoder *c, int factor, int max_p); static inline void renorm_encoder(RangeCoder *c) { // FIXME: optimize - while (c->range < 0x100) { if (c->outstanding_byte < 0) { c->outstanding_byte = c->low >> 8; } else if (c->low <= 0xFF00) { @@ -73,7 +72,6 @@ static inline void renorm_encoder(RangeCoder *c) c->low = (c->low & 0xFF) << 8; c->range <<= 8; - } } static inline int get_rac_count(RangeCoder *c) @@ -100,7 +98,8 @@ static inline void put_rac(RangeCoder *c, uint8_t *const state, int bit) *state = c->one_state[*state]; } - renorm_encoder(c); + while (c->range < 0x100) + renorm_encoder(c); } static inline void refill(RangeCoder *c)