GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/vp56dsp.c Lines: 23 23 100.0 %
Date: 2020-09-25 23:16:12 Branches: 4 4 100.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2006 Aurelien Jacobs <aurel@gnuage.org>
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 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include <stdint.h>
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#include "libavutil/attributes.h"
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#include "avcodec.h"
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#include "vp56dsp.h"
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#include "libavutil/common.h"
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#define VP56_EDGE_FILTER(pfx, suf, pix_inc, line_inc)                   \
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static void pfx ## _edge_filter_ ## suf(uint8_t *yuv, ptrdiff_t stride, \
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                                        int t)                          \
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{                                                                       \
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    int pix2_inc = 2 * pix_inc;                                         \
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    int i, v;                                                           \
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                                                                        \
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    for (i=0; i<12; i++) {                                              \
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        v = (yuv[-pix2_inc] + 3*(yuv[0]-yuv[-pix_inc]) - yuv[pix_inc] + 4)>>3;\
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        v = pfx##_adjust(v, t);                                         \
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        yuv[-pix_inc] = av_clip_uint8(yuv[-pix_inc] + v);               \
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        yuv[0] = av_clip_uint8(yuv[0] - v);                             \
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        yuv += line_inc;                                                \
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    }                                                                   \
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}
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#if CONFIG_VP5_DECODER
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/* Gives very similar result than the vp6 version except in a few cases */
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1318356
static int vp5_adjust(int v, int t)
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{
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    int s2, s1 = v >> 31;
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    v ^= s1;
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    v -= s1;
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    v *= v < 2*t;
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    v -= t;
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    s2 = v >> 31;
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    v ^= s2;
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    v -= s2;
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    v = t - v;
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    v += s1;
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    v ^= s1;
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    return v;
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}
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1093807
VP56_EDGE_FILTER(vp5, hor, 1, stride)
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VP56_EDGE_FILTER(vp5, ver, stride, 1)
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av_cold void ff_vp5dsp_init(VP56DSPContext *s)
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{
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    s->edge_filter_hor = vp5_edge_filter_hor;
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    s->edge_filter_ver = vp5_edge_filter_ver;
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}
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#endif /* CONFIG_VP5_DECODER */
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#if CONFIG_VP6_DECODER
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av_cold void ff_vp6dsp_init(VP56DSPContext *s)
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{
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    s->vp6_filter_diag4 = ff_vp6_filter_diag4_c;
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    if (ARCH_ARM)
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        ff_vp6dsp_init_arm(s);
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    if (ARCH_X86)
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        ff_vp6dsp_init_x86(s);
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}
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#endif /* CONFIG_VP6_DECODER */