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Palette code: simpler and faster duplicate removal

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Change-Id: I0c1baa5ca73c1f067d69239d3e31d1050b4706d2
This commit is contained in:
Urvang Joshi
2016-08-03 17:02:03 -07:00
parent cbed16b8b3
commit 016a5daa59
1 changed files with 4 additions and 12 deletions
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16
vp10/encoder/rdopt.c
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@@ -1921,21 +1921,13 @@ static int rd_pick_palette_intra_sby(VP10_COMP *cpi, MACROBLOCK *x,
centroids[i] = roundf(centroids[i]); centroids[i] = roundf(centroids[i]);
// remove duplicates // remove duplicates
i = 1; i = 1;
k = n; for (j = 1; j < n; ++j) {
while (i < k) { if (centroids[j] != centroids[j - 1]) { // found a new unique centroid
if (centroids[i] == centroids[i - 1]) { centroids[i] = centroids[j];
j = i;
while (j < k - 1) {
assert((j + 1) < PALETTE_MAX_SIZE);
assert(j > 0);
centroids[j] = centroids[j + 1];
++j;
}
--k;
} else {
++i; ++i;
} }
} }
k = i; // number of unique centroids
#if CONFIG_VP9_HIGHBITDEPTH #if CONFIG_VP9_HIGHBITDEPTH
if (cpi->common.use_highbitdepth) if (cpi->common.use_highbitdepth)