GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/cfhdencdsp.c Lines: 0 27 0.0 %
Date: 2021-04-20 04:37:23 Branches: 0 6 0.0 %

Line Branch Exec Source
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/*
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 * Copyright (c) 2015-2016 Kieran Kunhya <kieran@kunhya.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/attributes.h"
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#include "libavutil/common.h"
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#include "libavutil/avassert.h"
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#include "cfhdencdsp.h"
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static av_always_inline void filter(int16_t *input, ptrdiff_t in_stride,
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                          int16_t *low, ptrdiff_t low_stride,
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                          int16_t *high, ptrdiff_t high_stride,
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                          int len)
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{
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    low[(0>>1) * low_stride]   = av_clip_int16(input[0*in_stride] + input[1*in_stride]);
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    high[(0>>1) * high_stride] = av_clip_int16((5 * input[0*in_stride] - 11 * input[1*in_stride] +
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                                                4 * input[2*in_stride] +  4 * input[3*in_stride] -
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                                                1 * input[4*in_stride] -  1 * input[5*in_stride] + 4) >> 3);
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    for (int i = 2; i < len - 2; i += 2) {
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        low[(i>>1) * low_stride]   = av_clip_int16(input[i*in_stride] + input[(i+1)*in_stride]);
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        high[(i>>1) * high_stride] = av_clip_int16(((-input[(i-2)*in_stride] - input[(i-1)*in_stride] +
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                                                      input[(i+2)*in_stride] + input[(i+3)*in_stride] + 4) >> 3) +
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                                                      input[(i+0)*in_stride] - input[(i+1)*in_stride]);
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    }
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    low[((len-2)>>1) * low_stride]   = av_clip_int16(input[((len-2)+0)*in_stride] + input[((len-2)+1)*in_stride]);
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    high[((len-2)>>1) * high_stride] = av_clip_int16((11* input[((len-2)+0)*in_stride] - 5 * input[((len-2)+1)*in_stride] -
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                                                      4 * input[((len-2)-1)*in_stride] - 4 * input[((len-2)-2)*in_stride] +
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                                                      1 * input[((len-2)-3)*in_stride] + 1 * input[((len-2)-4)*in_stride] + 4) >> 3);
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}
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static void horiz_filter(int16_t *input, int16_t *low, int16_t *high,
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                         ptrdiff_t in_stride, ptrdiff_t low_stride,
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                         ptrdiff_t high_stride,
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                         int width, int height)
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{
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    for (int i = 0; i < height; i++) {
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        filter(input, 1, low, 1, high, 1, width);
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        input += in_stride;
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        low += low_stride;
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        high += high_stride;
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    }
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}
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static void vert_filter(int16_t *input, int16_t *low, int16_t *high,
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                        ptrdiff_t in_stride, ptrdiff_t low_stride,
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                        ptrdiff_t high_stride,
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                        int width, int height)
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{
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    for (int i = 0; i < width; i++)
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        filter(&input[i], in_stride, &low[i], low_stride, &high[i], high_stride, height);
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}
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av_cold void ff_cfhdencdsp_init(CFHDEncDSPContext *c)
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{
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    c->horiz_filter = horiz_filter;
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    c->vert_filter = vert_filter;
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    if (ARCH_X86)
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        ff_cfhdencdsp_init_x86(c);
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}