AAC encoder: memoize quantize_band_cost

The bulk of calls to quantize_band_cost are replaced
by a call to a version that memoizes, greatly improving
performance, since during coefficient search there is
a great deal of repeat work.

Memoization cannot always be applied, so do this in a
different function, and leave the original as-is.

1 files changed, 2 insertions, 0 deletions

diff --git a/libavcodec/mips/aaccoder_mips.c b/libavcodec/mips/aaccoder_mips.c
index e85bf8c5ca..269a12465f 100644
--- a/libavcodec/mips/aaccoder_mips.c
+++ b/libavcodec/mips/aaccoder_mips.c
@@ -2388,6 +2388,8 @@ static float quantize_band_cost(struct AACEncContext *s, const float *in,
     return get_band_cost(s, NULL, in, scaled, size, scale_idx, cb, lambda, uplim, bits, energy);
 }
 
+#include "libavcodec/aacenc_quantization_misc.h"
+
 static float find_form_factor(int group_len, int swb_size, float thresh, const float *scaled, float nzslope) {
     const float iswb_size = 1.0f / swb_size;
     const float iswb_sizem1 = 1.0f / (swb_size - 1);