shithub: libvpx

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vp9: With denoising on, only estimate noise level for higher resolns.

Allow it for resolns above 640x360 for now.

Change-Id: I087d0d8173f96b316164fdd4a499110ce2e7a233

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

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

@@ -38,9 +38,11 @@

 }

 static int enable_noise_estimation(VP9_COMP *const cpi) {

-// Enable noise estimation if denoising is on.

+// Enable noise estimation if denoising is on, but not for low resolutions.

 #if CONFIG_VP9_TEMPORAL_DENOISING

-  if (cpi->oxcf.noise_sensitivity > 0) return 1;

+  if (cpi->oxcf.noise_sensitivity > 0 && cpi->common.width >= 640 &&

+      cpi->common.height >= 360)

+    return 1;

 #endif

   // Only allow noise estimate under certain encoding mode.

   // Enabled for 1 pass CBR, speed >=5, and if resolution is same as original.