[PATCH] Retune FLAC compression levels
Martijn van Beurden
mvanb1 at gmail.com
Sun Oct 19 14:43:29 PDT 2014
This patch changes a the settings associated with compression
levels 6, 7 and 8. With this patch, -e is no longer used, but
instead apodization functions are added. This should improve
compression with at least 95% of all material while not changing
the speed much. Decoding ways, 6 and 8 stay the same, and 7 is
slowed a bit, which makes it as fast as 8.
---
src/libFLAC/stream_encoder.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/libFLAC/stream_encoder.c b/src/libFLAC/stream_encoder.c
index 3103fdf..f3141da 100644
--- a/src/libFLAC/stream_encoder.c
+++ b/src/libFLAC/stream_encoder.c
@@ -115,8 +115,8 @@ static struct CompressionLevels {
{ true , true , 8, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
{ true , false, 8, 0, false, false, false, 0, 5, 0, "tukey(5e-1)" },
{ true , false, 8, 0, false, false, false, 0, 6, 0, "tukey(5e-1)" },
- { true , false, 8, 0, false, false, true , 0, 6, 0, "tukey(5e-1)" },
- { true , false, 12, 0, false, false, true , 0, 6, 0, "tukey(5e-1)" }
+ { true , false, 12, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2)" },
+ { true , false, 12, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2);punchout_tukey(3)" }
/* here we use locale-independent 5e-1 instead of 0.5 or 0,5 */
};
--
1.9.1
--------------070105060107070203070302--
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