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author | trav90 <travawine@palemoon.org> | 2018-10-18 06:04:57 -0500 |
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committer | trav90 <travawine@palemoon.org> | 2018-10-18 06:04:57 -0500 |
commit | 7369c7d7a5eed32963d8af37658286617919f91c (patch) | |
tree | 5397ce7ee9bca1641118fdc3187bd9e2b24fdc9c /third_party/aom/av1/encoder/cost.c | |
parent | 77887af9c4ad1420bbdb33984af4f74b55ca59db (diff) | |
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Update aom to commit id f5bdeac22930ff4c6b219be49c843db35970b918
Diffstat (limited to 'third_party/aom/av1/encoder/cost.c')
-rw-r--r-- | third_party/aom/av1/encoder/cost.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/cost.c b/third_party/aom/av1/encoder/cost.c index e3151a597..e33df53e4 100644 --- a/third_party/aom/av1/encoder/cost.c +++ b/third_party/aom/av1/encoder/cost.c @@ -65,3 +65,21 @@ void av1_cost_tokens_skip(int *costs, const aom_prob *probs, aom_tree tree) { costs[-tree[0]] = av1_cost_bit(probs[0], 0); cost(costs, tree, probs, 2, 0); } + +void av1_cost_tokens_from_cdf(int *costs, const aom_cdf_prob *cdf, + const int *inv_map) { + int i; + aom_cdf_prob prev_cdf = 0; + for (i = 0;; ++i) { + const aom_cdf_prob p15 = AOM_ICDF(cdf[i]) - prev_cdf; + prev_cdf = AOM_ICDF(cdf[i]); + + if (inv_map) + costs[inv_map[i]] = av1_cost_symbol(p15); + else + costs[i] = av1_cost_symbol(p15); + + // Stop once we reach the end of the CDF + if (cdf[i] == AOM_ICDF(CDF_PROB_TOP)) break; + } +} |