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Delete outdated comment & tidy-up others

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Change-Id: I83031180723ee59270ec8fb66b2f73c0796bee25
This commit is contained in:
Adrian Grange
2014-01-15 09:53:03 -08:00
parent 69b684279c
commit c3011e6f90
1 changed files with 2 additions and 7 deletions
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9
vp9/common/vp9_prob.h
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@@ -39,17 +39,12 @@ typedef int8_t vp9_tree_index;
typedef const vp9_tree_index vp9_tree[];
/* Convert array of token occurrence counts into a table of probabilities
for the associated binary encoding tree. Also writes count of branches
taken for each node on the tree; this facilitiates decisions as to
probability updates. */
static INLINE vp9_prob clip_prob(int p) {
return (p > 255) ? 255u : (p < 1) ? 1u : p;
}
// int64 is not needed for normal frame level calculations.
// However when outputing entropy stats accumulated over many frames
// However when outputting entropy stats accumulated over many frames
// or even clips we can overflow int math.
#ifdef ENTROPY_STATS
static INLINE vp9_prob get_prob(int num, int den) {
@@ -65,7 +60,7 @@ static INLINE vp9_prob get_binary_prob(int n0, int n1) {
return get_prob(n0, n0 + n1);
}
/* this function assumes prob1 and prob2 are already within [1,255] range */
/* This function assumes prob1 and prob2 are already within [1,255] range. */
static INLINE vp9_prob weighted_prob(int prob1, int prob2, int factor) {
return ROUND_POWER_OF_TWO(prob1 * (256 - factor) + prob2 * factor, 8);
}