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Use lookup table to find pixel numbers in block

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This could save one multiplication in each threshold funtion
called by the denoiser per block.

Change-Id: I35f437e09999f0a087180878ef7805f0d86e5819
This commit is contained in:
Jingning Han
2015-01-07 18:36:47 -08:00
parent e535ad5067
commit e3f0b19f3f
1 changed files with 4 additions and 9 deletions
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13
vp9/encoder/vp9_denoiser.c
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@@ -49,9 +49,7 @@ static int noise_motion_thresh(BLOCK_SIZE bs, int increase_denoising) {
}
static unsigned int sse_thresh(BLOCK_SIZE bs, int increase_denoising) {
return (4 << b_width_log2_lookup[bs]) *
(4 << b_height_log2_lookup[bs]) *
(increase_denoising ? 60 : 40);
return (1 << num_pels_log2_lookup[bs]) * (increase_denoising ? 60 : 40);
}
static int sse_diff_thresh(BLOCK_SIZE bs, int increase_denoising,
@@ -60,19 +58,16 @@ static int sse_diff_thresh(BLOCK_SIZE bs, int increase_denoising,
noise_motion_thresh(bs, increase_denoising)) {
return 0;
} else {
return (4 << b_width_log2_lookup[bs]) *
(4 << b_height_log2_lookup[bs]) * 20;
return (1 << num_pels_log2_lookup[bs]) * 20;
}
}
int total_adj_strong_thresh(BLOCK_SIZE bs, int increase_denoising) {
return (4 << b_width_log2_lookup[bs]) *
(4 << b_height_log2_lookup[bs]) * (increase_denoising ? 3 : 2);
return (1 << num_pels_log2_lookup[bs]) * (increase_denoising ? 3 : 2);
}
static int total_adj_weak_thresh(BLOCK_SIZE bs, int increase_denoising) {
return (4 << b_width_log2_lookup[bs]) *
(4 << b_height_log2_lookup[bs]) * (increase_denoising ? 3 : 2);
return (1 << num_pels_log2_lookup[bs]) * (increase_denoising ? 3 : 2);
}
// TODO(jackychen): If increase_denoising is enabled in the future,