diff options
Diffstat (limited to 'c/enc/quality.h')
| -rw-r--r-- | c/enc/quality.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/c/enc/quality.h b/c/enc/quality.h index aa7ba0d..5f4d034 100644 --- a/c/enc/quality.h +++ b/c/enc/quality.h @@ -142,6 +142,24 @@ static BROTLI_INLINE void ChooseHasher(const BrotliEncoderParams* params, hparams->num_last_distances_to_check = params->quality < 7 ? 4 : params->quality < 9 ? 10 : 16; } + + if (params->lgwin > 24) { + /* Different hashers for large window brotli: not for qualities <= 2, + these are too fast for large window. Not for qualities >= 10: their + hasher already works well with large window. So the changes are: + H3 --> H35: for quality 3. + H54 --> H55: for quality 4 with size hint > 1MB + H6 --> H65: for qualities 5, 6, 7, 8, 9. */ + if (hparams->type == 3) { + hparams->type = 35; + } + if (hparams->type == 54) { + hparams->type = 55; + } + if (hparams->type == 6) { + hparams->type = 65; + } + } } #endif /* BROTLI_ENC_QUALITY_H_ */ |