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vp9-denoiser: Avoid copy-block when denoising is at LowLow level.

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Avoid copy-block when denoising is at LowLow level (i.e., no denoising is done).
Instead, don't enter denoiser at all, and when level goes back up over kLowLow
do a reset in denoiser.

Change-Id: I0544adf58f4dd51ecc4a4607fcb0353bfbbb7a59
This commit is contained in:
Marco
2016-04-04 11:05:21 -07:00
parent 5572ab1d02
commit ac86dde3af
4 changed files with 23 additions and 5 deletions
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11
vp9/encoder/vp9_denoiser.c
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@@ -450,11 +450,12 @@ void vp9_denoiser_update_frame_info(VP9_DENOISER *denoiser,
int resized) {
// Copy source into denoised reference buffers on KEY_FRAME or
// if the just encoded frame was resized.
if (frame_type == KEY_FRAME || resized != 0) {
if (frame_type == KEY_FRAME || resized != 0 || denoiser->reset) {
int i;
// Start at 1 so as not to overwrite the INTRA_FRAME
for (i = 1; i < MAX_REF_FRAMES; ++i)
copy_frame(&denoiser->running_avg_y[i], &src);
denoiser->reset = 0;
return;
}
@@ -567,6 +568,8 @@ int vp9_denoiser_alloc(VP9_DENOISER *denoiser, int width, int height,
denoiser->increase_denoising = 0;
denoiser->frame_buffer_initialized = 1;
denoiser->denoising_level = kDenLow;
denoiser->prev_denoising_level = kDenLow;
denoiser->reset = 0;
return 0;
}
@@ -586,6 +589,12 @@ void vp9_denoiser_free(VP9_DENOISER *denoiser) {
void vp9_denoiser_set_noise_level(VP9_DENOISER *denoiser,
int noise_level) {
denoiser->denoising_level = noise_level;
if (denoiser->denoising_level > kDenLowLow &&
denoiser->prev_denoising_level == kDenLowLow)
denoiser->reset = 1;
else
denoiser->reset = 0;
denoiser->prev_denoising_level = denoiser->denoising_level;
}
#ifdef OUTPUT_YUV_DENOISED