| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. 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 |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #ifndef AOM_AV1_ENCODER_RANDOM_H_ |
| #define AOM_AV1_ENCODER_RANDOM_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // Generate a random number in the range [0, 32768). |
| static INLINE unsigned int lcg_rand16(unsigned int *state) { |
| *state = (unsigned int)(*state * 1103515245ULL + 12345); |
| return *state / 65536 % 32768; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_ENCODER_RANDOM_H_ |
