| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef VP9_COMMON_VP9_LOOPFILTER_H_ |
| #define VP9_COMMON_VP9_LOOPFILTER_H_ |
| |
| #include "vpx_ports/mem.h" |
| #include "./vpx_config.h" |
| |
| #include "vp9/common/vp9_seg_common.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define MAX_LOOP_FILTER 63 |
| #define MAX_SHARPNESS 7 |
| |
| #define SIMD_WIDTH 1 |
| |
| #define MAX_REF_LF_DELTAS 4 |
| #define MAX_MODE_LF_DELTAS 2 |
| |
| #define NONE -1 |
| #define INTRA_FRAME 0 |
| #define LAST_FRAME 1 |
| #define GOLDEN_FRAME 2 |
| #define ALTREF_FRAME 3 |
| #define MAX_REF_FRAMES 4 |
| |
| enum lf_path { |
| LF_PATH_420, |
| LF_PATH_444, |
| LF_PATH_SLOW, |
| }; |
| |
| // Need to align this structure so when it is declared and |
| // passed it can be loaded into vector registers. |
| typedef struct { |
| DECLARE_ALIGNED(SIMD_WIDTH, uint8_t, mblim[SIMD_WIDTH]); |
| DECLARE_ALIGNED(SIMD_WIDTH, uint8_t, lim[SIMD_WIDTH]); |
| DECLARE_ALIGNED(SIMD_WIDTH, uint8_t, hev_thr[SIMD_WIDTH]); |
| } loop_filter_thresh; |
| |
| typedef struct loop_filter_info_n { |
| loop_filter_thresh lfthr[MAX_LOOP_FILTER + 1]; |
| uint8_t lvl[MAX_SEGMENTS][MAX_REF_FRAMES][MAX_MODE_LF_DELTAS]; |
| } loop_filter_info_n; |
| |
| // This structure holds bit masks for all 8x8 blocks in a 64x64 region. |
| // Each 1 bit represents a position in which we want to apply the loop filter. |
| // Left_ entries refer to whether we apply a filter on the border to the |
| // left of the block. Above_ entries refer to whether or not to apply a |
| // filter on the above border. Int_ entries refer to whether or not to |
| // apply borders on the 4x4 edges within the 8x8 block that each bit |
| // represents. |
| // Since each transform is accompanied by a potentially different type of |
| // loop filter there is a different entry in the array for each transform size. |
| typedef struct { |
| uint64_t left_y[TX_SIZES]; |
| uint64_t above_y[TX_SIZES]; |
| uint64_t int_4x4_y; |
| uint16_t left_uv[TX_SIZES]; |
| uint16_t above_uv[TX_SIZES]; |
| uint16_t int_4x4_uv; |
| uint8_t lfl_y[64]; |
| } LOOP_FILTER_MASK; |
| |
| struct loopfilter { |
| int filter_level; |
| int last_filt_level; |
| |
| int sharpness_level; |
| int last_sharpness_level; |
| |
| uint8_t mode_ref_delta_enabled; |
| uint8_t mode_ref_delta_update; |
| |
| // 0 = Intra, Last, GF, ARF |
| signed char ref_deltas[MAX_REF_LF_DELTAS]; |
| signed char last_ref_deltas[MAX_REF_LF_DELTAS]; |
| |
| // 0 = ZERO_MV, MV |
| signed char mode_deltas[MAX_MODE_LF_DELTAS]; |
| signed char last_mode_deltas[MAX_MODE_LF_DELTAS]; |
| |
| LOOP_FILTER_MASK *lfm; |
| int lfm_stride; |
| }; |
| |
| void vp9_loop_filter_init(loop_filter_info_n *lfi, struct loopfilter *lf); |
| void vp9_loop_filter_frame_init(struct loopfilter *lf, loop_filter_info_n *lfi, |
| struct segmentation *seg, int default_filt_lvl, |
| bool *sharpness_updated_out); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // VP9_COMMON_VP9_LOOPFILTER_H_ |