ac3enc: NEON optimised ac3_max_msb_abs_int16 and ac3_exponent_min

1 files changed, 35 insertions, 0 deletions

diff --git a/libavcodec/arm/ac3dsp_init_arm.c b/libavcodec/arm/ac3dsp_init_arm.c
new file mode 100644
index 0000000000..a0fc97799c
--- /dev/null
+++ b/libavcodec/arm/ac3dsp_init_arm.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2011 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
+ */
+
+#include <stdint.h>
+#include "libavutil/attributes.h"
+#include "libavcodec/ac3dsp.h"
+#include "config.h"
+
+void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
+int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len);
+
+av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)
+{
+    if (HAVE_NEON) {
+        c->ac3_exponent_min      = ff_ac3_exponent_min_neon;
+        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_neon;
+    }
+}