diff options
Diffstat (limited to 'src/3rdparty/libwebp/src/enc/histogram_enc.c')
| -rw-r--r-- | src/3rdparty/libwebp/src/enc/histogram_enc.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/src/3rdparty/libwebp/src/enc/histogram_enc.c b/src/3rdparty/libwebp/src/enc/histogram_enc.c index 056a972..9fdbc62 100644 --- a/src/3rdparty/libwebp/src/enc/histogram_enc.c +++ b/src/3rdparty/libwebp/src/enc/histogram_enc.c @@ -200,14 +200,9 @@ static WEBP_INLINE double BitsEntropyRefine(const VP8LBitEntropy* entropy) { } } -double VP8LBitsEntropy(const uint32_t* const array, int n, - uint32_t* const trivial_symbol) { +double VP8LBitsEntropy(const uint32_t* const array, int n) { VP8LBitEntropy entropy; VP8LBitsEntropyUnrefined(array, n, &entropy); - if (trivial_symbol != NULL) { - *trivial_symbol = - (entropy.nonzeros == 1) ? entropy.nonzero_code : VP8L_NON_TRIVIAL_SYM; - } return BitsEntropyRefine(&entropy); } @@ -605,7 +600,7 @@ static void HistogramCombineEntropyBin(VP8LHistogramSet* const image_histo, } // Implement a Lehmer random number generator with a multiplicative constant of -// 48271 and a modulo constant of 2^31 − 1. +// 48271 and a modulo constant of 2^31 - 1. static uint32_t MyRand(uint32_t* const seed) { *seed = (uint32_t)(((uint64_t)(*seed) * 48271u) % 2147483647u); assert(*seed > 0); @@ -1031,7 +1026,7 @@ int VP8LGetHistoImageSymbols(int xsize, int ysize, } } - // TODO(vikasa): Optimize HistogramRemap for low-effort compression mode also. + // TODO(vrabaud): Optimize HistogramRemap for low-effort compression mode. // Find the optimal map from original histograms to the final ones. HistogramRemap(orig_histo, image_histo, histogram_symbols); |