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authorReimar Döffinger <Reimar.Doeffinger@gmx.de>2016-03-06 17:28:42 +0100
committerReimar Döffinger <Reimar.Doeffinger@gmx.de>2016-03-08 23:56:51 +0100
commitb91e3763905ad95602f2b4e91d37415692573248 (patch)
treee1d41e6d4d080ab85612d599c43d21608920f434 /libavcodec/aacenc.h
parentb3e0371818917364be0b2f4b24831b4ed987392f (diff)
aacenc: use generational cache instead of resetting.
Approximately 11% faster transcoding from mp3 with default settings. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diffstat (limited to 'libavcodec/aacenc.h')
-rw-r--r--libavcodec/aacenc.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/aacenc.h b/libavcodec/aacenc.h
index 2252e2989c..63e789366f 100644
--- a/libavcodec/aacenc.h
+++ b/libavcodec/aacenc.h
@@ -84,10 +84,10 @@ extern AACCoefficientsEncoder ff_aac_coders[];
typedef struct AACQuantizeBandCostCacheEntry {
float rd;
float energy;
- int bits; ///< -1 means uninitialized entry
+ int bits;
char cb;
char rtz;
- char padding[2]; ///< Keeps the entry size a multiple of 32 bits
+ uint16_t generation;
} AACQuantizeBandCostCacheEntry;
/**
@@ -126,6 +126,7 @@ typedef struct AACEncContext {
DECLARE_ALIGNED(16, int, qcoefs)[96]; ///< quantized coefficients
DECLARE_ALIGNED(32, float, scoefs)[1024]; ///< scaled coefficients
+ uint16_t quantize_band_cost_cache_generation;
AACQuantizeBandCostCacheEntry quantize_band_cost_cache[256][128]; ///< memoization area for quantize_band_cost
struct {