/* * Copyright (c) 2001-2016, 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 AOM_DSP_ENTCODE_H_ #define AOM_DSP_ENTCODE_H_ #include <limits.h> #include <stddef.h> #include "av1/common/odintrin.h" #include "aom_dsp/prob.h" #define EC_PROB_SHIFT 6 #define EC_MIN_PROB 4 // must be <= (1<<EC_PROB_SHIFT)/16 /*OPT: od_ec_window must be at least 32 bits, but if you have fast arithmetic on a larger type, you can speed up the decoder by using it here.*/ typedef uint32_t od_ec_window; #define OD_EC_WINDOW_SIZE ((int)sizeof(od_ec_window) * CHAR_BIT) /*The resolution of fractional-precision bit usage measurements, i.e., 3 => 1/8th bits.*/ #define OD_BITRES (3) #define OD_ICDF AOM_ICDF /*See entcode.c for further documentation.*/ OD_WARN_UNUSED_RESULT uint32_t od_ec_tell_frac(uint32_t nbits_total, uint32_t rng); #endif // AOM_DSP_ENTCODE_H_