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Fixes to adaptive denoiser mode.

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Scale min_consec_zero_last wrt to #temporal layers,
and use full framerate as factor in noise metric.

Change-Id: Id0842b90164ce468d1236173c51965e7620c0e12
This commit is contained in:
Marco 2014-08-19 15:31:39 -07:00
parent f617889be7
commit aa88e32017
1 changed files with 5 additions and 3 deletions
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8
vp8/encoder/onyx_if.c
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@ -3303,15 +3303,17 @@ static void process_denoiser_mode_change(VP8_COMP *cpi) {
int skip = 2;
// Only select blocks for computing nmse that have been encoded
// as ZERO LAST min_consec_zero_last frames in a row.
int min_consec_zero_last = 10;
// Scale with number of temporal layers.
int min_consec_zero_last = 8 / cpi->oxcf.number_of_layers;
// Decision is tested for changing the denoising mode every
// num_mode_change times this function is called. Note that this
// function called every 8 frames, so (8 * num_mode_change) is number
// of frames where denoising mode change is tested for switch.
int num_mode_change = 15;
// Framerate factor, to compensate for larger mse at lower framerates.
// TODO(marpan): Adjust this factor,
int fac_framerate = cpi->output_framerate < 25.0f ? 80 : 100;
// Use ref_framerate, which is full source framerate for temporal layers.
// TODO(marpan): Adjust this factor.
int fac_framerate = cpi->ref_framerate < 25.0f ? 80 : 100;
int tot_num_blocks = cm->mb_rows * cm->mb_cols;
int ystride = cpi->Source->y_stride;
unsigned char *src = cpi->Source->y_buffer;