Much faster generation possible; but array is small so don't want to bloat
the binary.
Signed-off-by: Ganesh Ajjanagadde <gajjanaga...@gmail.com>
---
libavcodec/atrac3plusdsp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/atrac3plusdsp.c b/libavcodec/atrac3plusdsp.c
index 17c6437..d089588 100644
--- a/libavcodec/atrac3plusdsp.c
+++ b/libavcodec/atrac3plusdsp.c
@@ -28,6 +28,7 @@
#include <math.h>
#include "libavutil/float_dsp.h"
+#include "libavutil/libm.h"
#include "avcodec.h"
#include "sinewin.h"
#include "fft.h"
@@ -107,7 +108,7 @@ av_cold void ff_atrac3p_init_wave_synth(void)
/* generate amplitude scalefactors table */
for (i = 0; i < 64; i++)
- amp_sf_tab[i] = pow(2.0f, ((double)i - 3) / 4.0f);
+ amp_sf_tab[i] = exp2f((i - 3) / 4.0f);
}
/**
--
2.7.0
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