av1_inv_txfm1d.h (2625B)
1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_AV1_COMMON_AV1_INV_TXFM1D_H_ 13 #define AOM_AV1_COMMON_AV1_INV_TXFM1D_H_ 14 15 #include "av1/common/av1_txfm.h" 16 17 #ifdef __cplusplus 18 extern "C" { 19 #endif 20 21 static inline int32_t clamp_value(int32_t value, int8_t bit) { 22 if (bit <= 0) return value; // Do nothing for invalid clamp bit. 23 const int64_t max_value = (1LL << (bit - 1)) - 1; 24 const int64_t min_value = -(1LL << (bit - 1)); 25 return (int32_t)clamp64(value, min_value, max_value); 26 } 27 28 static inline void clamp_buf(int32_t *buf, int32_t size, int8_t bit) { 29 for (int i = 0; i < size; ++i) buf[i] = clamp_value(buf[i], bit); 30 } 31 32 void av1_idct4(const int32_t *input, int32_t *output, int8_t cos_bit, 33 const int8_t *stage_range); 34 void av1_idct8(const int32_t *input, int32_t *output, int8_t cos_bit, 35 const int8_t *stage_range); 36 void av1_idct16(const int32_t *input, int32_t *output, int8_t cos_bit, 37 const int8_t *stage_range); 38 void av1_idct32(const int32_t *input, int32_t *output, int8_t cos_bit, 39 const int8_t *stage_range); 40 void av1_idct64(const int32_t *input, int32_t *output, int8_t cos_bit, 41 const int8_t *stage_range); 42 void av1_iadst4(const int32_t *input, int32_t *output, int8_t cos_bit, 43 const int8_t *stage_range); 44 void av1_iadst8(const int32_t *input, int32_t *output, int8_t cos_bit, 45 const int8_t *stage_range); 46 void av1_iadst16(const int32_t *input, int32_t *output, int8_t cos_bit, 47 const int8_t *stage_range); 48 void av1_iidentity4_c(const int32_t *input, int32_t *output, int8_t cos_bit, 49 const int8_t *stage_range); 50 void av1_iidentity8_c(const int32_t *input, int32_t *output, int8_t cos_bit, 51 const int8_t *stage_range); 52 void av1_iidentity16_c(const int32_t *input, int32_t *output, int8_t cos_bit, 53 const int8_t *stage_range); 54 void av1_iidentity32_c(const int32_t *input, int32_t *output, int8_t cos_bit, 55 const int8_t *stage_range); 56 57 #ifdef __cplusplus 58 } 59 #endif 60 61 #endif // AOM_AV1_COMMON_AV1_INV_TXFM1D_H_