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Side by Side Diff: source/patched-ffmpeg-mt/libavcodec/fft-test.c

Issue 3384002: ffmpeg source update for sep 09 (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/ffmpeg/
Patch Set: Created 10 years, 3 months ago
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1 /* 1 /*
2 * (c) 2002 Fabrice Bellard 2 * (c) 2002 Fabrice Bellard
3 * 3 *
4 * This file is part of FFmpeg. 4 * This file is part of FFmpeg.
5 * 5 *
6 * FFmpeg is free software; you can redistribute it and/or 6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public 7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either 8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version. 9 * version 2.1 of the License, or (at your option) any later version.
10 * 10 *
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179 static int check_diff(float *tab1, float *tab2, int n, double scale) 179 static int check_diff(float *tab1, float *tab2, int n, double scale)
180 { 180 {
181 int i; 181 int i;
182 double max= 0; 182 double max= 0;
183 double error= 0; 183 double error= 0;
184 int err = 0; 184 int err = 0;
185 185
186 for (i = 0; i < n; i++) { 186 for (i = 0; i < n; i++) {
187 double e= fabsf(tab1[i] - (tab2[i] / scale)); 187 double e= fabsf(tab1[i] - (tab2[i] / scale));
188 if (e >= 1e-3) { 188 if (e >= 1e-3) {
189 av_log(NULL, AV_LOG_ERROR, "ERROR %d: %f %f\n", 189 av_log(NULL, AV_LOG_ERROR, "ERROR %5d: %10.6f %10.6f\n",
190 i, tab1[i], tab2[i]); 190 i, tab1[i], tab2[i]);
191 err = 1; 191 err = 1;
192 } 192 }
193 error+= e*e; 193 error+= e*e;
194 if(e>max) max= e; 194 if(e>max) max= e;
195 } 195 }
196 av_log(NULL, AV_LOG_INFO, "max:%f e:%g\n", max, sqrt(error)/n); 196 av_log(NULL, AV_LOG_INFO, "max:%f e:%g\n", max, sqrt(error)/n);
197 return err; 197 return err;
198 } 198 }
199 199
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448 } 448 }
449 449
450 av_free(tab); 450 av_free(tab);
451 av_free(tab1); 451 av_free(tab1);
452 av_free(tab2); 452 av_free(tab2);
453 av_free(tab_ref); 453 av_free(tab_ref);
454 av_free(exptab); 454 av_free(exptab);
455 455
456 return err; 456 return err;
457 } 457 }
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