1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 #ifndef loopfilter_h 13 #define loopfilter_h 14 15 #include "vpx_ports/mem.h" 16 #include "vpx_config.h" 17 #include "vpx_rtcd.h" 18 19 #define MAX_LOOP_FILTER 63 20 /* fraction of total macroblock rows to be used in fast filter level picking */ 21 /* has to be > 2 */ 22 #define PARTIAL_FRAME_FRACTION 8 23 24 typedef enum 25 { 26 NORMAL_LOOPFILTER = 0, 27 SIMPLE_LOOPFILTER = 1 28 } LOOPFILTERTYPE; 29 30 #if ARCH_ARM 31 #define SIMD_WIDTH 1 32 #else 33 #define SIMD_WIDTH 16 34 #endif 35 36 /* Need to align this structure so when it is declared and 37 * passed it can be loaded into vector registers. 38 */ 39 typedef struct 40 { 41 DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, mblim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]); 42 DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, blim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]); 43 DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, lim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]); 44 DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, hev_thr[4][SIMD_WIDTH]); 45 unsigned char lvl[4][4][4]; 46 unsigned char hev_thr_lut[2][MAX_LOOP_FILTER + 1]; 47 unsigned char mode_lf_lut[10]; 48 } loop_filter_info_n; 49 50 typedef struct loop_filter_info 51 { 52 const unsigned char * mblim; 53 const unsigned char * blim; 54 const unsigned char * lim; 55 const unsigned char * hev_thr; 56 } loop_filter_info; 57 58 59 typedef void loop_filter_uvfunction 60 ( 61 unsigned char *u, /* source pointer */ 62 int p, /* pitch */ 63 const unsigned char *blimit, 64 const unsigned char *limit, 65 const unsigned char *thresh, 66 unsigned char *v 67 ); 68 69 /* assorted loopfilter functions which get used elsewhere */ 70 struct VP8Common; 71 struct macroblockd; 72 struct modeinfo; 73 74 void vp8_loop_filter_init(struct VP8Common *cm); 75 76 void vp8_loop_filter_frame_init(struct VP8Common *cm, 77 struct macroblockd *mbd, 78 int default_filt_lvl); 79 80 void vp8_loop_filter_frame(struct VP8Common *cm, struct macroblockd *mbd, 81 int frame_type); 82 83 void vp8_loop_filter_partial_frame(struct VP8Common *cm, 84 struct macroblockd *mbd, 85 int default_filt_lvl); 86 87 void vp8_loop_filter_frame_yonly(struct VP8Common *cm, 88 struct macroblockd *mbd, 89 int default_filt_lvl); 90 91 void vp8_loop_filter_update_sharpness(loop_filter_info_n *lfi, 92 int sharpness_lvl); 93 94 void vp8_loop_filter_row_normal(struct VP8Common *cm, 95 struct modeinfo *mode_info_context, 96 int mb_row, int post_ystride, int post_uvstride, 97 unsigned char *y_ptr, unsigned char *u_ptr, 98 unsigned char *v_ptr); 99 100 void vp8_loop_filter_row_simple(struct VP8Common *cm, 101 struct modeinfo *mode_info_context, 102 int mb_row, int post_ystride, int post_uvstride, 103 unsigned char *y_ptr, unsigned char *u_ptr, 104 unsigned char *v_ptr); 105 #endif 106
