GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/diracdsp.c Lines: 51 73 69.9 %
Date: 2019-11-20 04:07:19 Branches: 38 86 44.2 %

Line Branch Exec Source
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/*
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 * Copyright (C) 2009 David Conrad
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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 "avcodec.h"
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#include "diracdsp.h"
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#define FILTER(src, stride)                                     \
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    ((21*((src)[ 0*stride] + (src)[1*stride])                   \
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      -7*((src)[-1*stride] + (src)[2*stride])                   \
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      +3*((src)[-2*stride] + (src)[3*stride])                   \
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      -1*((src)[-3*stride] + (src)[4*stride]) + 16) >> 5)
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static void dirac_hpel_filter(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src,
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                              int stride, int width, int height)
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{
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    int x, y;
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    for (y = 0; y < height; y++) {
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        for (x = -3; x < width+5; x++)
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            dstv[x] = av_clip_uint8(FILTER(src+x, stride));
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        for (x = 0; x < width; x++)
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            dstc[x] = av_clip_uint8(FILTER(dstv+x, 1));
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        for (x = 0; x < width; x++)
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            dsth[x] = av_clip_uint8(FILTER(src+x, 1));
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        src  += stride;
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        dsth += stride;
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        dstv += stride;
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        dstc += stride;
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    }
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}
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#define PIXOP_BILINEAR(PFX, OP, WIDTH)                                  \
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    static void ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c(uint8_t *dst, const uint8_t *src[5], int stride, int h) \
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    {                                                                   \
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        int x;                                                          \
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        const uint8_t *s0 = src[0];                                     \
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        const uint8_t *s1 = src[1];                                     \
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        const uint8_t *s2 = src[2];                                     \
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        const uint8_t *s3 = src[3];                                     \
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        const uint8_t *w  = src[4];                                     \
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                                                                        \
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        while (h--) {                                                   \
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            for (x = 0; x < WIDTH; x++) {                               \
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                OP(dst[x], (s0[x]*w[0] + s1[x]*w[1] + s2[x]*w[2] + s3[x]*w[3] + 8) >> 4); \
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            }                                                           \
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                                                                        \
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            dst += stride;                                              \
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            s0 += stride;                                               \
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            s1 += stride;                                               \
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            s2 += stride;                                               \
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            s3 += stride;                                               \
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        }                                                               \
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    }
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#define OP_PUT(dst, val) (dst) = (val)
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#define OP_AVG(dst, val) (dst) = (((dst) + (val) + 1)>>1)
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PIXOP_BILINEAR(put, OP_PUT, 8)
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PIXOP_BILINEAR(put, OP_PUT, 16)
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PIXOP_BILINEAR(put, OP_PUT, 32)
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PIXOP_BILINEAR(avg, OP_AVG, 8)
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PIXOP_BILINEAR(avg, OP_AVG, 16)
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PIXOP_BILINEAR(avg, OP_AVG, 32)
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#define op_scale1(x)  block[x] = av_clip_uint8( (block[x]*weight + (1<<(log2_denom-1))) >> log2_denom)
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#define op_scale2(x)  dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + (1<<(log2_denom-1))) >> log2_denom)
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#define DIRAC_WEIGHT(W)                                                 \
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    static void weight_dirac_pixels ## W ## _c(uint8_t *block, int stride, int log2_denom, \
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                                               int weight, int h) {     \
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        int x;                                                          \
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        while (h--) {                                                   \
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            for (x = 0; x < W; x++) {                                   \
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                op_scale1(x);                                           \
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                op_scale1(x+1);                                         \
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            }                                                           \
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            block += stride;                                            \
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        }                                                               \
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    }                                                                   \
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    static void biweight_dirac_pixels ## W ## _c(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, \
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                                                 int weightd, int weights, int h) { \
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        int x;                                                          \
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        while (h--) {                                                   \
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            for (x = 0; x < W; x++) {                                   \
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                op_scale2(x);                                           \
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                op_scale2(x+1);                                         \
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            }                                                           \
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            dst += stride;                                              \
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            src += stride;                                              \
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        }                                                               \
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    }
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DIRAC_WEIGHT(8)
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DIRAC_WEIGHT(16)
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DIRAC_WEIGHT(32)
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#define ADD_OBMC(xblen)                                                 \
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    static void add_obmc ## xblen ## _c(uint16_t *dst, const uint8_t *src, int stride, \
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                                        const uint8_t *obmc_weight, int yblen) \
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    {                                                                   \
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        int x;                                                          \
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        while (yblen--) {                                               \
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            for (x = 0; x < xblen; x += 2) {                            \
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                dst[x  ] += src[x  ] * obmc_weight[x  ];                \
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                dst[x+1] += src[x+1] * obmc_weight[x+1];                \
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            }                                                           \
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            dst += stride;                                              \
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            src += stride;                                              \
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            obmc_weight += 32;                                          \
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        }                                                               \
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    }
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2886892
ADD_OBMC(8)
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5104870
ADD_OBMC(16)
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ADD_OBMC(32)
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static void put_signed_rect_clamped_8bit_c(uint8_t *dst, int dst_stride, const uint8_t *_src, int src_stride, int width, int height)
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{
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    int x, y;
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3615
    int16_t *src = (int16_t *)_src;
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61455
    for (y = 0; y < height; y++) {
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3994608
        for (x = 0; x < width; x+=4) {
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3936768
            dst[x  ] = av_clip_uint8(src[x  ] + 128);
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3936768
            dst[x+1] = av_clip_uint8(src[x+1] + 128);
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3936768
            dst[x+2] = av_clip_uint8(src[x+2] + 128);
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3936768
            dst[x+3] = av_clip_uint8(src[x+3] + 128);
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        }
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57840
        dst += dst_stride;
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57840
        src += src_stride >> 1;
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    }
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3615
}
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#define PUT_SIGNED_RECT_CLAMPED(PX)                                                                     \
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static void put_signed_rect_clamped_ ## PX ## bit_c(uint8_t *_dst, int dst_stride, const uint8_t *_src, \
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                                                  int src_stride, int width, int height)                \
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{                                                                                                       \
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    int x, y;                                                                                           \
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    uint16_t *dst = (uint16_t *)_dst;                                                                   \
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    int32_t *src = (int32_t *)_src;                                                                     \
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    for (y = 0; y < height; y++) {                                                                      \
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        for (x = 0; x < width; x+=4) {                                                                  \
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            dst[x  ] = av_clip_uintp2(src[x  ] + (1U << (PX - 1)), PX);                                  \
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            dst[x+1] = av_clip_uintp2(src[x+1] + (1U << (PX - 1)), PX);                                  \
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            dst[x+2] = av_clip_uintp2(src[x+2] + (1U << (PX - 1)), PX);                                  \
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            dst[x+3] = av_clip_uintp2(src[x+3] + (1U << (PX - 1)), PX);                                  \
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        }                                                                                               \
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        dst += dst_stride >> 1;                                                                         \
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        src += src_stride >> 2;                                                                         \
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    }                                                                                                   \
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}
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4867128
PUT_SIGNED_RECT_CLAMPED(10)
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3009312
PUT_SIGNED_RECT_CLAMPED(12)
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static void add_rect_clamped_c(uint8_t *dst, const uint16_t *src, int stride,
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                               const int16_t *idwt, int idwt_stride,
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                               int width, int height)
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{
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    int x, y;
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    for (y = 0; y < height; y++) {
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1684320
        for (x = 0; x < width; x+=2) {
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1670400
            dst[x  ] = av_clip_uint8(((src[x  ]+32)>>6) + idwt[x  ]);
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1670400
            dst[x+1] = av_clip_uint8(((src[x+1]+32)>>6) + idwt[x+1]);
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        }
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13920
        dst += stride;
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        src += stride;
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13920
        idwt += idwt_stride;
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    }
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2697
}
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#define DEQUANT_SUBBAND(PX)                                                                \
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static void dequant_subband_ ## PX ## _c(uint8_t *src, uint8_t *dst, ptrdiff_t stride,     \
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                                         const int qf, const int qs, int tot_v, int tot_h) \
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{                                                                                          \
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    int i, y;                                                                              \
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    for (y = 0; y < tot_v; y++) {                                                          \
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        PX c, sign, *src_r = (PX *)src, *dst_r = (PX *)dst;                                \
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        for (i = 0; i < tot_h; i++) {                                                      \
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            c = *src_r++;                                                                  \
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            sign = FFSIGN(c)*(!!c);                                                        \
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            c = (FFABS(c)*(unsigned)qf + qs) >> 2;                                                   \
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            *dst_r++ = c*sign;                                                             \
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        }                                                                                  \
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        src += tot_h << (sizeof(PX) >> 1);                                                 \
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        dst += stride;                                                                     \
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    }                                                                                      \
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}
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13589532
DEQUANT_SUBBAND(int16_t)
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35739792
DEQUANT_SUBBAND(int32_t)
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#define PIXFUNC(PFX, WIDTH)                                             \
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    c->PFX ## _dirac_pixels_tab[WIDTH>>4][0] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _c; \
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    c->PFX ## _dirac_pixels_tab[WIDTH>>4][1] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l2_c; \
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    c->PFX ## _dirac_pixels_tab[WIDTH>>4][2] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l4_c; \
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    c->PFX ## _dirac_pixels_tab[WIDTH>>4][3] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c
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av_cold void ff_diracdsp_init(DiracDSPContext *c)
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{
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    c->dirac_hpel_filter = dirac_hpel_filter;
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    c->add_rect_clamped = add_rect_clamped_c;
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    c->put_signed_rect_clamped[0] = put_signed_rect_clamped_8bit_c;
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    c->put_signed_rect_clamped[1] = put_signed_rect_clamped_10bit_c;
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    c->put_signed_rect_clamped[2] = put_signed_rect_clamped_12bit_c;
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    c->add_dirac_obmc[0] = add_obmc8_c;
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    c->add_dirac_obmc[1] = add_obmc16_c;
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    c->add_dirac_obmc[2] = add_obmc32_c;
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    c->weight_dirac_pixels_tab[0] = weight_dirac_pixels8_c;
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    c->weight_dirac_pixels_tab[1] = weight_dirac_pixels16_c;
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    c->weight_dirac_pixels_tab[2] = weight_dirac_pixels32_c;
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    c->biweight_dirac_pixels_tab[0] = biweight_dirac_pixels8_c;
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    c->biweight_dirac_pixels_tab[1] = biweight_dirac_pixels16_c;
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    c->biweight_dirac_pixels_tab[2] = biweight_dirac_pixels32_c;
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    c->dequant_subband[0] = c->dequant_subband[2] = dequant_subband_int16_t_c;
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    c->dequant_subband[1] = c->dequant_subband[3] = dequant_subband_int32_t_c;
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    PIXFUNC(put, 8);
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    PIXFUNC(put, 16);
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    PIXFUNC(put, 32);
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    PIXFUNC(avg, 8);
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    PIXFUNC(avg, 16);
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    PIXFUNC(avg, 32);
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    if (ARCH_X86)
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70
        ff_diracdsp_init_x86(c);
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}