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  /external/webp/src/enc/
webpenc.c 279 stats->PSNR[0] = (float)GetPSNR(sse[0], size);
280 stats->PSNR[1] = (float)GetPSNR(sse[1], size / 4);
281 stats->PSNR[2] = (float)GetPSNR(sse[2], size / 4);
282 stats->PSNR[3] = (float)GetPSNR(sse[0] + sse[1] + sse[2], size * 3 / 2);
frame.c 628 float* const PSNR) {
663 if (PSNR) {
664 *PSNR = (float)(10.* log10(255. * 255. * pixel_count / distortion));
696 float PSNR;
698 const int size = OneStatPass(enc, q, rd_opt, nb_mbs, &PSNR);
700 printf("#%d size=%d PSNR=%.2f q=%.2f\n", pass, size, PSNR, q);
704 criterion = (PSNR < enc->config_->target_PSNR);
  /external/webp/include/webp/
encode.h 118 float PSNR[4]; // peak-signal-to-noise ratio for Y/U/V/All

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