shithub: libvpx

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vp9: Adjustment to noise estimation.

When the noise estimate is forced off due to large motion,
reset the counter and set smaller window for next estimate.

Change-Id: Ifa4ec95396134173a00d48353ad52f1b6a40c217

--- a/vp9/encoder/vp9_noise_estimate.c

+++ b/vp9/encoder/vp9_noise_estimate.c

@@ -141,6 +141,8 @@

              cpi->rc.avg_frame_low_motion < (low_res ? 70 : 50)) {

     // Force noise estimation to 0 and denoiser off if content has high motion.

     ne->level = kLowLow;

+    ne->count = 0;

+    ne->num_frames_estimate = 10;

 #if CONFIG_VP9_TEMPORAL_DENOISING

     if (cpi->oxcf.noise_sensitivity > 0 && denoise_svc(cpi) &&

         cpi->svc.current_superframe > 1) {