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-rw-r--r--libavcodec/kbdwin.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/libavcodec/kbdwin.c b/libavcodec/kbdwin.c
index 1b7313d1dc..bf32aeb317 100644
--- a/libavcodec/kbdwin.c
+++ b/libavcodec/kbdwin.c
@@ -1,22 +1,22 @@
/*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <assert.h>
+#include "libavutil/avassert.h"
#include "libavutil/mathematics.h"
#include "libavutil/attributes.h"
#include "kbdwin.h"
@@ -30,7 +30,7 @@ av_cold void ff_kbd_window_init(float *window, float alpha, int n)
double local_window[FF_KBD_WINDOW_MAX];
double alpha2 = (alpha * M_PI / n) * (alpha * M_PI / n);
- assert(n <= FF_KBD_WINDOW_MAX);
+ av_assert0(n <= FF_KBD_WINDOW_MAX);
for (i = 0; i < n; i++) {
tmp = i * (n - i) * alpha2;
@@ -45,3 +45,13 @@ av_cold void ff_kbd_window_init(float *window, float alpha, int n)
for (i = 0; i < n; i++)
window[i] = sqrt(local_window[i] / sum);
}
+
+av_cold void ff_kbd_window_init_fixed(int32_t *window, float alpha, int n)
+{
+ int i;
+ float local_window[FF_KBD_WINDOW_MAX];
+
+ ff_kbd_window_init(local_window, alpha, n);
+ for (i = 0; i < n; i++)
+ window[i] = (int)floor(2147483647.0 * local_window[i] + 0.5);
+}