libavresample: NEON optimized FIR audio resampling

modelled after aarch64 code

on Cortex-A8, s16 and s32 code is about 2x faster,
float code about 7x faster

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>

1 files changed, 29 insertions, 0 deletions

diff --git a/libavresample/arm/asm-offsets.h b/libavresample/arm/asm-offsets.h
new file mode 100644
index 0000000000..a1623ed68b
--- /dev/null
+++ b/libavresample/arm/asm-offsets.h
@@ -0,0 +1,29 @@
+/*
+ * 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
+ */
+
+#ifndef AVRESAMPLE_ARM_ASM_OFFSETS_H
+#define AVRESAMPLE_ARM_ASM_OFFSETS_H
+
+/* struct ResampleContext */
+#define FILTER_BANK                     0x08
+#define FILTER_LENGTH                   0x0c
+#define SRC_INCR                        0x20
+#define PHASE_SHIFT                     0x28
+#define PHASE_MASK                      (PHASE_SHIFT + 0x04)
+
+#endif /* AVRESAMPLE_ARM_ASM_OFFSETS_H */