update to webrtc revision 1349

Updated audio processing modules from revision 180 to 1349.
Main changes are:
- code clean up and reformating
- source path reorganization
- improved performance

Also imported test code that was not included in initial
drop from webrtc.

Change-Id: Ie4eb0e29990052e5f2d7f0b271b42eead40dbb6a

1 files changed, 47 insertions, 0 deletions

diff --git a/src/common_audio/signal_processing/min_max_operations_neon.c b/src/common_audio/signal_processing/min_max_operations_neon.c
new file mode 100644
index 0000000000..158bcc1837
--- /dev/null
+++ b/src/common_audio/signal_processing/min_max_operations_neon.c
@@ -0,0 +1,47 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#if (defined(WEBRTC_ANDROID) && defined(WEBRTC_ARCH_ARM_NEON))
+
+#include <arm_neon.h>
+
+#include "signal_processing_library.h"
+
+// Maximum absolute value of word16 vector.
+WebRtc_Word16 WebRtcSpl_MaxAbsValueW16(const WebRtc_Word16* vector,
+                                       WebRtc_Word16 length) {
+  WebRtc_Word32 temp_max = 0;
+  WebRtc_Word32 abs_val;
+  WebRtc_Word16 tot_max;
+  int i;
+
+  __asm__("vmov.i16 d25, #0" : : : "d25");
+
+  for (i = 0; i < length - 7; i += 8) {
+    __asm__("vld1.16 {d26, d27}, [%0]" : : "r"(&vector[i]) : "q13");
+    __asm__("vabs.s16 q13, q13" : : : "q13");
+    __asm__("vpmax.s16 d26, d27" : : : "q13");
+    __asm__("vpmax.s16 d25, d26" : : : "d25", "d26");
+  }
+  __asm__("vpmax.s16 d25, d25" : : : "d25");
+  __asm__("vpmax.s16 d25, d25" : : : "d25");
+  __asm__("vmov.s16 %0, d25[0]" : "=r"(temp_max): : "d25");
+
+  for (; i < length; i++) {
+    abs_val = WEBRTC_SPL_ABS_W32((vector[i]));
+    if (abs_val > temp_max) {
+      temp_max = abs_val;
+    }
+  }
+  tot_max = (WebRtc_Word16)WEBRTC_SPL_MIN(temp_max, WEBRTC_SPL_WORD16_MAX);
+  return tot_max;
+}
+
+#endif