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https://git.ffmpeg.org/ffmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
/*
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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/mem.h"
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#include "libavfilter/vf_nlmeans.c"
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static void display_integral(const uint32_t *ii, int w, int h, int lz_32)
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{
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int x, y;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++)
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printf(" %7x", ii[y*lz_32 + x]);
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printf("\n");
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}
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printf("---------------\n");
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}
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int main(void)
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{
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int ret = 0, xoff, yoff;
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uint32_t *ii_start;
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uint32_t *ii_start2;
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NLMeansDSPContext dsp = {0};
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// arbitrary test source of size 6x5 and linesize=8
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const int w = 6, h = 5, lz = 8;
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static const uint8_t src[] = {
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0xb0, 0x71, 0xfb, 0xd8, 0x01, 0xd9, /***/ 0x01, 0x02,
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0x51, 0x8e, 0x41, 0x0f, 0x84, 0x58, /***/ 0x03, 0x04,
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0xc7, 0x8d, 0x07, 0x70, 0x5c, 0x47, /***/ 0x05, 0x06,
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0x09, 0x4e, 0xfc, 0x74, 0x8f, 0x9a, /***/ 0x07, 0x08,
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0x60, 0x8e, 0x20, 0xaa, 0x95, 0x7d, /***/ 0x09, 0x0a,
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};
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const int e = 3;
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const int ii_w = w+e*2, ii_h = h+e*2;
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// align to 4 the linesize, "+1" is for the space of the left 0-column
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const int ii_lz_32 = ((ii_w + 1) + 3) & ~3;
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// "+1" is for the space of the top 0-line
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uint32_t *ii = av_calloc(ii_h + 1, ii_lz_32 * sizeof(*ii));
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uint32_t *ii2 = av_calloc(ii_h + 1, ii_lz_32 * sizeof(*ii2));
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if (!ii || !ii2)
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return -1;
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ii_start = ii + ii_lz_32 + 1; // skip top 0-line and left 0-column
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ii_start2 = ii2 + ii_lz_32 + 1; // skip top 0-line and left 0-column
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ff_nlmeans_init(&dsp);
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for (yoff = -e; yoff <= e; yoff++) {
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for (xoff = -e; xoff <= e; xoff++) {
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printf("xoff=%d yoff=%d\n", xoff, yoff);
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compute_ssd_integral_image(&dsp, ii_start, ii_lz_32,
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src, lz, xoff, yoff, e, w, h);
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display_integral(ii_start, ii_w, ii_h, ii_lz_32);
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compute_unsafe_ssd_integral_image(ii_start2, ii_lz_32,
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0, 0,
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src, lz,
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xoff, yoff, e, w, h,
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ii_w, ii_h);
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display_integral(ii_start2, ii_w, ii_h, ii_lz_32);
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if (memcmp(ii, ii2, (ii_h+1) * ii_lz_32 * sizeof(*ii))) {
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printf("Integral mismatch\n");
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ret = 1;
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goto end;
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}
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}
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}
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end:
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av_freep(&ii);
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av_freep(&ii2);
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return ret;
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}
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