62 lines
2.6 KiB
C
62 lines
2.6 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
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#define AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
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#include "av1/common/av1_txfm.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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static INLINE int32_t clamp_value(int32_t value, int8_t bit) {
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if (bit <= 0) return value; // Do nothing for invalid clamp bit.
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const int64_t max_value = (1LL << (bit - 1)) - 1;
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const int64_t min_value = -(1LL << (bit - 1));
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return (int32_t)clamp64(value, min_value, max_value);
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}
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static INLINE void clamp_buf(int32_t *buf, int32_t size, int8_t bit) {
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for (int i = 0; i < size; ++i) buf[i] = clamp_value(buf[i], bit);
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}
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void av1_idct4(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_idct8(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_idct16(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_idct32(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_idct64(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iadst4(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iadst8(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iadst16(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iidentity4_c(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iidentity8_c(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iidentity16_c(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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void av1_iidentity32_c(const int32_t *input, int32_t *output, int8_t cos_bit,
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const int8_t *stage_range);
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#ifdef __cplusplus
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}
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#endif
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#endif // AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
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