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authorMans Rullgard <mans@mansr.com>2011-03-27 10:26:58 +0100
committerMans Rullgard <mans@mansr.com>2011-04-03 22:39:52 +0100
commitdba9852935f31d81d16bf26ee21d164d5d5f5764 (patch)
treecdf5f333296aac3bf7d6fa5914919f073c74e533 /libavcodec/arm/fft_fixed_init_arm.c
parent4dcde00cfcf7914dec32683a8d511e281d0875fc (diff)
downloadffmpeg-dba9852935f31d81d16bf26ee21d164d5d5f5764.tar.gz
ARM: NEON fixed-point FFT
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/arm/fft_fixed_init_arm.c')
-rw-r--r--libavcodec/arm/fft_fixed_init_arm.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/libavcodec/arm/fft_fixed_init_arm.c b/libavcodec/arm/fft_fixed_init_arm.c
new file mode 100644
index 0000000000..916bf291ea
--- /dev/null
+++ b/libavcodec/arm/fft_fixed_init_arm.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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,
+ * 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
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define CONFIG_FFT_FLOAT 0
+#include "libavcodec/fft.h"
+
+void ff_fft_fixed_calc_neon(FFTContext *s, FFTComplex *z);
+
+av_cold void ff_fft_fixed_init_arm(FFTContext *s)
+{
+ if (HAVE_NEON) {
+ s->fft_permutation = FF_FFT_PERM_SWAP_LSBS;
+ s->fft_calc = ff_fft_fixed_calc_neon;
+ }
+}