| /* |
| * 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_COMMON_CDEF_H_ |
| #define AOM_AV1_COMMON_CDEF_H_ |
| |
| #define CDEF_STRENGTH_BITS 6 |
| |
| #define CDEF_PRI_STRENGTHS 16 |
| #define CDEF_SEC_STRENGTHS 4 |
| |
| #include "config/aom_config.h" |
| |
| #include "aom/aom_integer.h" |
| #include "aom_ports/mem.h" |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/cdef_block.h" |
| |
| static INLINE int sign(int i) { return i < 0 ? -1 : 1; } |
| |
| static INLINE int constrain(int diff, int threshold, int damping) { |
| if (!threshold) return 0; |
| |
| const int shift = AOMMAX(0, damping - get_msb(threshold)); |
| return sign(diff) * |
| AOMMIN(abs(diff), AOMMAX(0, threshold - (abs(diff) >> shift))); |
| } |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| int av1_cdef_compute_sb_list(const CommonModeInfoParams *const mi_params, |
| int mi_row, int mi_col, cdef_list *dlist, |
| BLOCK_SIZE bsize); |
| |
| /*!\brief Function for applying CDEF to a frame |
| * |
| * \ingroup in_loop_cdef |
| * This function applies CDEF to a frame. |
| * |
| * \param[in, out] frame Compressed frame buffer |
| * \param[in, out] cm Pointer to top level common structure |
| * \param[in] xd Pointer to common current coding block structure |
| * |
| * \return Nothing is returned. Instead, the filtered frame is output in |
| * \c frame. |
| */ |
| void av1_cdef_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, MACROBLOCKD *xd); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| #endif // AOM_AV1_COMMON_CDEF_H_ |