avcodec/internal: Move ff_exp2fi() to aacsbr.c

Only used there.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 0 insertions, 22 deletions

diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index eb9e0d707c..04f7cebdcb 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -26,10 +26,7 @@
 
 #include <stdint.h>
 
-#include "libavutil/buffer.h"
 #include "libavutil/channel_layout.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/pixfmt.h"
 #include "avcodec.h"
 #include "config.h"
 
@@ -157,25 +154,6 @@ int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
 
 unsigned int ff_toupper4(unsigned int x);
 
-/**
- * 2^(x) for integer x
- * @return correctly rounded float
- */
-static av_always_inline float ff_exp2fi(int x) {
-    /* Normal range */
-    if (-126 <= x && x <= 128)
-        return av_int2float((x+127) << 23);
-    /* Too large */
-    else if (x > 128)
-        return INFINITY;
-    /* Subnormal numbers */
-    else if (x > -150)
-        return av_int2float(1 << (x+149));
-    /* Negligibly small */
-    else
-        return 0;
-}
-
 int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx);
 
 int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec);