wuggy/Dactyloidae
wuggy/Dactyloidae
1
0
Fork 0
mirror of https://repo.dactyloidae.xyz/Dactyloidae/UXP.git synced 2026-10-09 08:47:31 +09:00
Code Issues Projects Releases Packages Wiki Activity

Import aom library

Browse source 
This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
This commit is contained in:
trav90 2018-10-15 21:45:30 -05:00 • committed by Roy Tam
commit edc8d83307
989 changed files with 470949 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

63
third_party/aom/av1/encoder/cost.h vendored Normal file
View file

@ -0,0 +1,63 @@
/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AV1_ENCODER_COST_H_
#define AV1_ENCODER_COST_H_
#include "aom_dsp/prob.h"
#include "aom/aom_integer.h"
#ifdef __cplusplus
extern "C" {
#endif
extern const uint16_t av1_prob_cost[256];
// The factor to scale from cost in bits to cost in av1_prob_cost units.
#define AV1_PROB_COST_SHIFT 9
#define av1_cost_zero(prob) (av1_prob_cost[prob])
#define av1_cost_one(prob) av1_cost_zero(256 - (prob))
#define av1_cost_bit(prob, bit) av1_cost_zero((bit) ? 256 - (prob) : (prob))
// Cost of coding an n bit literal, using 128 (i.e. 50%) probability
// for each bit.
#define av1_cost_literal(n) ((n) * (1 << AV1_PROB_COST_SHIFT))
static INLINE unsigned int cost_branch256(const unsigned int ct[2],
aom_prob p) {
return ct[0] * av1_cost_zero(p) + ct[1] * av1_cost_one(p);
}
static INLINE int treed_cost(aom_tree tree, const aom_prob *probs, int bits,
int len) {
int cost = 0;
aom_tree_index i = 0;
do {
const int bit = (bits >> --len) & 1;
cost += av1_cost_bit(probs[i >> 1], bit);
i = tree[i + bit];
} while (len);
return cost;
}
void av1_cost_tokens(int *costs, const aom_prob *probs, aom_tree tree);
void av1_cost_tokens_skip(int *costs, const aom_prob *probs, aom_tree tree);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AV1_ENCODER_COST_H_