GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavfilter/colorspacedsp_yuv2yuv_template.c Lines: 38 38 100.0 %
Date: 2020-09-25 14:59:26 Branches: 4 4 100.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.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 "libavutil/avassert.h"
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#undef opixel
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#define opixel pixel
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#undef ipixel
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#if IN_BIT_DEPTH == 8
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#define ipixel uint8_t
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#else
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#define ipixel uint16_t
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#endif
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#undef fn
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#undef fn2
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#undef fn3
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#define fn3(a,b,c,d) a##_##d##p##b##to##c##_c
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#define fn2(a,b,c,d) fn3(a,b,c,d)
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#define fn(a) fn2(a, IN_BIT_DEPTH, OUT_BIT_DEPTH, ss)
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static void fn(yuv2yuv)(uint8_t *_dst[3], const ptrdiff_t dst_stride[3],
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                        uint8_t *_src[3], const ptrdiff_t src_stride[3],
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                        int w, int h, const int16_t c[3][3][8],
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                        const int16_t yuv_offset[2][8])
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{
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    opixel **dst = (opixel **) _dst;
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    ipixel **src = (ipixel **) _src;
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    const ipixel *src0 = src[0], *src1 = src[1], *src2 = src[2];
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    opixel *dst0 = dst[0], *dst1 = dst[1], *dst2 = dst[2];
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    int y, x;
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    const int sh = 14 + IN_BIT_DEPTH - OUT_BIT_DEPTH;
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    const int rnd = 1 << (sh - 1);
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    int y_off_in = yuv_offset[0][0];
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    int y_off_out = yuv_offset[1][0] << sh;
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    const int uv_off_in = 128 << (IN_BIT_DEPTH - 8);
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    const int uv_off_out = rnd + (128 << (OUT_BIT_DEPTH - 8 + sh));
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    int cyy = c[0][0][0], cyu = c[0][1][0], cyv = c[0][2][0];
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    int cuu = c[1][1][0], cuv = c[1][2][0], cvu = c[2][1][0], cvv = c[2][2][0];
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    av_assert2(c[1][0][0] == 0);
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    av_assert2(c[2][0][0] == 0);
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    w = AV_CEIL_RSHIFT(w, SS_W);
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    h = AV_CEIL_RSHIFT(h, SS_H);
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8802
    for (y = 0; y < h; y++) {
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        for (x = 0; x < w; x++) {
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387072
            int y00 = src0[x << SS_W] - y_off_in;
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#if SS_W == 1
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165888
            int y01 = src0[2 * x + 1] - y_off_in;
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#if SS_H == 1
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            int y10 = src0[src_stride[0] / sizeof(ipixel) + 2 * x] - y_off_in;
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            int y11 = src0[src_stride[0] / sizeof(ipixel) + 2 * x + 1] - y_off_in;
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#endif
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#endif
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            int u = src1[x] - uv_off_in, v = src2[x] - uv_off_in;
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            int uv_val = cyu * u + cyv * v + rnd + y_off_out;
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            dst0[x << SS_W] = av_clip_pixel((cyy * y00 + uv_val) >> sh);
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#if SS_W == 1
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            dst0[x * 2 + 1] = av_clip_pixel((cyy * y01 + uv_val) >> sh);
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#if SS_H == 1
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            dst0[x * 2 + 0 + dst_stride[0] / sizeof(opixel)] =
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                              av_clip_pixel((cyy * y10 + uv_val) >> sh);
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            dst0[x * 2 + 1 + dst_stride[0] / sizeof(opixel)] =
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                              av_clip_pixel((cyy * y11 + uv_val) >> sh);
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#endif
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#endif
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            dst1[x] = av_clip_pixel((u * cuu + v * cuv + uv_off_out) >> sh);
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            dst2[x] = av_clip_pixel((u * cvu + v * cvv + uv_off_out) >> sh);
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        }
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        dst0 += (dst_stride[0] * (1 << SS_H)) / sizeof(opixel);
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        dst1 += dst_stride[1] / sizeof(opixel);
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        dst2 += dst_stride[2] / sizeof(opixel);
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        src0 += (src_stride[0] * (1 << SS_H)) / sizeof(ipixel);
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        src1 += src_stride[1] / sizeof(ipixel);
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        src2 += src_stride[2] / sizeof(ipixel);
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    }
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}