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Diffstat (limited to 'third_party/aom/aom_dsp/prob.h')
| -rw-r--r-- | third_party/aom/aom_dsp/prob.h | 671 |
1 files changed, 671 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/prob.h b/third_party/aom/aom_dsp/prob.h new file mode 100644 index 000000000..d003a986e --- /dev/null +++ b/third_party/aom/aom_dsp/prob.h @@ -0,0 +1,671 @@ +/* + * 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 AOM_AOM_DSP_PROB_H_ +#define AOM_AOM_DSP_PROB_H_ + +#include <assert.h> +#include <stdio.h> + +#include "config/aom_config.h" + +#include "aom_dsp/aom_dsp_common.h" +#include "aom_dsp/entcode.h" +#include "aom_ports/bitops.h" +#include "aom_ports/mem.h" + +#ifdef __cplusplus +extern "C" { +#endif + +// TODO(negge): Rename this aom_prob once we remove vpxbool. +typedef uint16_t aom_cdf_prob; + +#define CDF_SIZE(x) ((x) + 1) +#define CDF_PROB_BITS 15 +#define CDF_PROB_TOP (1 << CDF_PROB_BITS) +#define CDF_INIT_TOP 32768 +#define CDF_SHIFT (15 - CDF_PROB_BITS) +/*The value stored in an iCDF is CDF_PROB_TOP minus the actual cumulative + probability (an "inverse" CDF). + This function converts from one representation to the other (and is its own + inverse).*/ +#define AOM_ICDF(x) (CDF_PROB_TOP - (x)) + +#if CDF_SHIFT == 0 + +#define AOM_CDF2(a0) AOM_ICDF(a0), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF3(a0, a1) AOM_ICDF(a0), AOM_ICDF(a1), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF4(a0, a1, a2) \ + AOM_ICDF(a0), AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF5(a0, a1, a2, a3) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF6(a0, a1, a2, a3, a4) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF7(a0, a1, a2, a3, a4, a5) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF8(a0, a1, a2, a3, a4, a5, a6) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF9(a0, a1, a2, a3, a4, a5, a6, a7) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF10(a0, a1, a2, a3, a4, a5, a6, a7, a8) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF11(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(a9), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF12(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(a9), AOM_ICDF(a10), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF13(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(a9), AOM_ICDF(a10), \ + AOM_ICDF(a11), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF14(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(a9), AOM_ICDF(a10), \ + AOM_ICDF(a11), AOM_ICDF(a12), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF15(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(a9), AOM_ICDF(a10), \ + AOM_ICDF(a11), AOM_ICDF(a12), AOM_ICDF(a13), AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF16(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, \ + a14) \ + AOM_ICDF(a0) \ + , AOM_ICDF(a1), AOM_ICDF(a2), AOM_ICDF(a3), AOM_ICDF(a4), AOM_ICDF(a5), \ + AOM_ICDF(a6), AOM_ICDF(a7), AOM_ICDF(a8), AOM_ICDF(a9), AOM_ICDF(a10), \ + AOM_ICDF(a11), AOM_ICDF(a12), AOM_ICDF(a13), AOM_ICDF(a14), \ + AOM_ICDF(CDF_PROB_TOP), 0 + +#else +#define AOM_CDF2(a0) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 2) + \ + ((CDF_INIT_TOP - 2) >> 1)) / \ + ((CDF_INIT_TOP - 2)) + \ + 1) \ + , AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF3(a0, a1) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 3) + \ + ((CDF_INIT_TOP - 3) >> 1)) / \ + ((CDF_INIT_TOP - 3)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 3) + \ + ((CDF_INIT_TOP - 3) >> 1)) / \ + ((CDF_INIT_TOP - 3)) + \ + 2), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF4(a0, a1, a2) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 4) + \ + ((CDF_INIT_TOP - 4) >> 1)) / \ + ((CDF_INIT_TOP - 4)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 4) + \ + ((CDF_INIT_TOP - 4) >> 1)) / \ + ((CDF_INIT_TOP - 4)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 4) + \ + ((CDF_INIT_TOP - 4) >> 1)) / \ + ((CDF_INIT_TOP - 4)) + \ + 3), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF5(a0, a1, a2, a3) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 5) + \ + ((CDF_INIT_TOP - 5) >> 1)) / \ + ((CDF_INIT_TOP - 5)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 5) + \ + ((CDF_INIT_TOP - 5) >> 1)) / \ + ((CDF_INIT_TOP - 5)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 5) + \ + ((CDF_INIT_TOP - 5) >> 1)) / \ + ((CDF_INIT_TOP - 5)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 5) + \ + ((CDF_INIT_TOP - 5) >> 1)) / \ + ((CDF_INIT_TOP - 5)) + \ + 4), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF6(a0, a1, a2, a3, a4) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 6) + \ + ((CDF_INIT_TOP - 6) >> 1)) / \ + ((CDF_INIT_TOP - 6)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 6) + \ + ((CDF_INIT_TOP - 6) >> 1)) / \ + ((CDF_INIT_TOP - 6)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 6) + \ + ((CDF_INIT_TOP - 6) >> 1)) / \ + ((CDF_INIT_TOP - 6)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 6) + \ + ((CDF_INIT_TOP - 6) >> 1)) / \ + ((CDF_INIT_TOP - 6)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 6) + \ + ((CDF_INIT_TOP - 6) >> 1)) / \ + ((CDF_INIT_TOP - 6)) + \ + 5), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF7(a0, a1, a2, a3, a4, a5) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 7) + \ + ((CDF_INIT_TOP - 7) >> 1)) / \ + ((CDF_INIT_TOP - 7)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 7) + \ + ((CDF_INIT_TOP - 7) >> 1)) / \ + ((CDF_INIT_TOP - 7)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 7) + \ + ((CDF_INIT_TOP - 7) >> 1)) / \ + ((CDF_INIT_TOP - 7)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 7) + \ + ((CDF_INIT_TOP - 7) >> 1)) / \ + ((CDF_INIT_TOP - 7)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 7) + \ + ((CDF_INIT_TOP - 7) >> 1)) / \ + ((CDF_INIT_TOP - 7)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 7) + \ + ((CDF_INIT_TOP - 7) >> 1)) / \ + ((CDF_INIT_TOP - 7)) + \ + 6), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF8(a0, a1, a2, a3, a4, a5, a6) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 8) + \ + ((CDF_INIT_TOP - 8) >> 1)) / \ + ((CDF_INIT_TOP - 8)) + \ + 7), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF9(a0, a1, a2, a3, a4, a5, a6, a7) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 9) + \ + ((CDF_INIT_TOP - 9) >> 1)) / \ + ((CDF_INIT_TOP - 9)) + \ + 8), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF10(a0, a1, a2, a3, a4, a5, a6, a7, a8) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 10) + \ + ((CDF_INIT_TOP - 10) >> 1)) / \ + ((CDF_INIT_TOP - 10)) + \ + 9), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF11(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 9), \ + AOM_ICDF((((a9)-10) * ((CDF_INIT_TOP >> CDF_SHIFT) - 11) + \ + ((CDF_INIT_TOP - 11) >> 1)) / \ + ((CDF_INIT_TOP - 11)) + \ + 10), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF12(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 9), \ + AOM_ICDF((((a9)-10) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 10), \ + AOM_ICDF((((a10)-11) * ((CDF_INIT_TOP >> CDF_SHIFT) - 12) + \ + ((CDF_INIT_TOP - 12) >> 1)) / \ + ((CDF_INIT_TOP - 12)) + \ + 11), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF13(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 9), \ + AOM_ICDF((((a9)-10) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 10), \ + AOM_ICDF((((a10)-11) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 11), \ + AOM_ICDF((((a11)-12) * ((CDF_INIT_TOP >> CDF_SHIFT) - 13) + \ + ((CDF_INIT_TOP - 13) >> 1)) / \ + ((CDF_INIT_TOP - 13)) + \ + 12), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF14(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 9), \ + AOM_ICDF((((a9)-10) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 10), \ + AOM_ICDF((((a10)-11) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 11), \ + AOM_ICDF((((a11)-12) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 12), \ + AOM_ICDF((((a12)-13) * ((CDF_INIT_TOP >> CDF_SHIFT) - 14) + \ + ((CDF_INIT_TOP - 14) >> 1)) / \ + ((CDF_INIT_TOP - 14)) + \ + 13), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF15(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 9), \ + AOM_ICDF((((a9)-10) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 10), \ + AOM_ICDF((((a10)-11) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 11), \ + AOM_ICDF((((a11)-12) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 12), \ + AOM_ICDF((((a12)-13) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 13), \ + AOM_ICDF((((a13)-14) * ((CDF_INIT_TOP >> CDF_SHIFT) - 15) + \ + ((CDF_INIT_TOP - 15) >> 1)) / \ + ((CDF_INIT_TOP - 15)) + \ + 14), \ + AOM_ICDF(CDF_PROB_TOP), 0 +#define AOM_CDF16(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, \ + a14) \ + AOM_ICDF((((a0)-1) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 1) \ + , \ + AOM_ICDF((((a1)-2) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 2), \ + AOM_ICDF((((a2)-3) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 3), \ + AOM_ICDF((((a3)-4) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 4), \ + AOM_ICDF((((a4)-5) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 5), \ + AOM_ICDF((((a5)-6) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 6), \ + AOM_ICDF((((a6)-7) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 7), \ + AOM_ICDF((((a7)-8) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 8), \ + AOM_ICDF((((a8)-9) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 9), \ + AOM_ICDF((((a9)-10) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 10), \ + AOM_ICDF((((a10)-11) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 11), \ + AOM_ICDF((((a11)-12) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 12), \ + AOM_ICDF((((a12)-13) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 13), \ + AOM_ICDF((((a13)-14) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 14), \ + AOM_ICDF((((a14)-15) * ((CDF_INIT_TOP >> CDF_SHIFT) - 16) + \ + ((CDF_INIT_TOP - 16) >> 1)) / \ + ((CDF_INIT_TOP - 16)) + \ + 15), \ + AOM_ICDF(CDF_PROB_TOP), 0 + +#endif + +static INLINE uint8_t get_prob(unsigned int num, unsigned int den) { + assert(den != 0); + { + const int p = (int)(((uint64_t)num * 256 + (den >> 1)) / den); + // (p > 255) ? 255 : (p < 1) ? 1 : p; + const int clipped_prob = p | ((255 - p) >> 23) | (p == 0); + return (uint8_t)clipped_prob; + } +} + +static INLINE void update_cdf(aom_cdf_prob *cdf, int val, int nsymbs) { + int rate; + int i, tmp; + + static const int nsymbs2speed[17] = { 0, 0, 1, 1, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2 }; + assert(nsymbs < 17); + rate = 3 + (cdf[nsymbs] > 15) + (cdf[nsymbs] > 31) + + nsymbs2speed[nsymbs]; // + get_msb(nsymbs); + tmp = AOM_ICDF(0); + + // Single loop (faster) + for (i = 0; i < nsymbs - 1; ++i) { + tmp = (i == val) ? 0 : tmp; + if (tmp < cdf[i]) { + cdf[i] -= ((cdf[i] - tmp) >> rate); + } else { + cdf[i] += ((tmp - cdf[i]) >> rate); + } + } + cdf[nsymbs] += (cdf[nsymbs] < 32); +} + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AOM_AOM_DSP_PROB_H_ |