1 files changed, 0 insertions, 47 deletions
diff --git a/ffmpeg/libavcodec/kbdwin.c b/ffmpeg/libavcodec/kbdwin.c
deleted file mode 100644
index 5a62e9d..0000000
--- a/ffmpeg/libavcodec/kbdwin.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "libavutil/avassert.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/attributes.h"
-#include "kbdwin.h"
-
-#define BESSEL_I0_ITER 50 // default: 50 iterations of Bessel I0 approximation
-
-av_cold void ff_kbd_window_init(float *window, float alpha, int n)
-{
-   int i, j;
-   double sum = 0.0, bessel, tmp;
-   double local_window[FF_KBD_WINDOW_MAX];
-   double alpha2 = (alpha * M_PI / n) * (alpha * M_PI / n);
-
-   av_assert0(n <= FF_KBD_WINDOW_MAX);
-
-   for (i = 0; i < n; i++) {
-       tmp = i * (n - i) * alpha2;
-       bessel = 1.0;
-       for (j = BESSEL_I0_ITER; j > 0; j--)
-           bessel = bessel * tmp / (j * j) + 1;
-       sum += bessel;
-       local_window[i] = sum;
-   }
-
-   sum++;
-   for (i = 0; i < n; i++)
-       window[i] = sqrt(local_window[i] / sum);
-}