106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef loopfilter_h
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#define loopfilter_h
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#include "vpx_ports/mem.h"
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#include "vpx_config.h"
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#include "vp8_rtcd.h"
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#define MAX_LOOP_FILTER 63
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/* fraction of total macroblock rows to be used in fast filter level picking */
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/* has to be > 2 */
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#define PARTIAL_FRAME_FRACTION 8
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typedef enum
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{
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NORMAL_LOOPFILTER = 0,
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SIMPLE_LOOPFILTER = 1
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} LOOPFILTERTYPE;
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#if ARCH_ARM
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#define SIMD_WIDTH 1
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#else
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#define SIMD_WIDTH 16
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#endif
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/* Need to align this structure so when it is declared and
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* passed it can be loaded into vector registers.
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*/
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typedef struct
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{
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DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, mblim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
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DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, blim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
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DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, lim[MAX_LOOP_FILTER + 1][SIMD_WIDTH]);
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DECLARE_ALIGNED(SIMD_WIDTH, unsigned char, hev_thr[4][SIMD_WIDTH]);
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unsigned char lvl[4][4][4];
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unsigned char hev_thr_lut[2][MAX_LOOP_FILTER + 1];
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unsigned char mode_lf_lut[10];
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} loop_filter_info_n;
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typedef struct loop_filter_info
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{
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const unsigned char * mblim;
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const unsigned char * blim;
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const unsigned char * lim;
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const unsigned char * hev_thr;
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} loop_filter_info;
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typedef void loop_filter_uvfunction
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(
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unsigned char *u, /* source pointer */
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int p, /* pitch */
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const unsigned char *blimit,
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const unsigned char *limit,
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const unsigned char *thresh,
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unsigned char *v
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);
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/* assorted loopfilter functions which get used elsewhere */
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struct VP8Common;
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struct macroblockd;
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struct modeinfo;
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void vp8_loop_filter_init(struct VP8Common *cm);
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void vp8_loop_filter_frame_init(struct VP8Common *cm,
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struct macroblockd *mbd,
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int default_filt_lvl);
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void vp8_loop_filter_frame(struct VP8Common *cm, struct macroblockd *mbd,
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int frame_type);
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void vp8_loop_filter_partial_frame(struct VP8Common *cm,
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struct macroblockd *mbd,
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int default_filt_lvl);
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void vp8_loop_filter_frame_yonly(struct VP8Common *cm,
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struct macroblockd *mbd,
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int default_filt_lvl);
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void vp8_loop_filter_update_sharpness(loop_filter_info_n *lfi,
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int sharpness_lvl);
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void vp8_loop_filter_row_normal(struct VP8Common *cm,
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struct modeinfo *mode_info_context,
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int mb_row, int post_ystride, int post_uvstride,
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unsigned char *y_ptr, unsigned char *u_ptr,
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unsigned char *v_ptr);
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void vp8_loop_filter_row_simple(struct VP8Common *cm,
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struct modeinfo *mode_info_context,
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int mb_row, int post_ystride, int post_uvstride,
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unsigned char *y_ptr, unsigned char *u_ptr,
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unsigned char *v_ptr);
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#endif
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