Update audio_processing module

Corresponds to upstream commit 524e9b043e7e86fd72353b987c9d5f6a1ebf83e1 Update notes: * Pull in third party license file * Replace .gypi files with BUILD.gn to keep track of what changes upstream * Bunch of new filse pulled in as dependencies * Won't build yet due to changes needed on top of these
2015-10-13 17:25:22 +05:30
parent 5ae7a5d6cd
commit 753eada3aa
324 changed files with 52533 additions and 16117 deletions
--- a/webrtc/modules/audio_processing/ns/include/noise_suppression_x.h
+++ b/webrtc/modules/audio_processing/ns/include/noise_suppression_x.h
@ -0,0 +1,88 @@
+/*
+ *  Copyright (c) 2012 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.
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_INCLUDE_NOISE_SUPPRESSION_X_H_
+#define WEBRTC_MODULES_AUDIO_PROCESSING_NS_INCLUDE_NOISE_SUPPRESSION_X_H_
+
+#include "webrtc/typedefs.h"
+
+typedef struct NsxHandleT NsxHandle;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * This function creates an instance of the fixed point Noise Suppression.
+ */
+NsxHandle* WebRtcNsx_Create();
+
+/*
+ * This function frees the dynamic memory of a specified Noise Suppression
+ * instance.
+ *
+ * Input:
+ *      - nsxInst       : Pointer to NS instance that should be freed
+ */
+void WebRtcNsx_Free(NsxHandle* nsxInst);
+
+/*
+ * This function initializes a NS instance
+ *
+ * Input:
+ *      - nsxInst       : Instance that should be initialized
+ *      - fs            : sampling frequency
+ *
+ * Output:
+ *      - nsxInst       : Initialized instance
+ *
+ * Return value         :  0 - Ok
+ *                        -1 - Error
+ */
+int WebRtcNsx_Init(NsxHandle* nsxInst, uint32_t fs);
+
+/*
+ * This changes the aggressiveness of the noise suppression method.
+ *
+ * Input:
+ *      - nsxInst       : Instance that should be initialized
+ *      - mode          : 0: Mild, 1: Medium , 2: Aggressive
+ *
+ * Output:
+ *      - nsxInst       : Initialized instance
+ *
+ * Return value         :  0 - Ok
+ *                        -1 - Error
+ */
+int WebRtcNsx_set_policy(NsxHandle* nsxInst, int mode);
+
+/*
+ * This functions does noise suppression for the inserted speech frame. The
+ * input and output signals should always be 10ms (80 or 160 samples).
+ *
+ * Input
+ *      - nsxInst       : NSx instance. Needs to be initiated before call.
+ *      - speechFrame   : Pointer to speech frame buffer for each band
+ *      - num_bands     : Number of bands
+ *
+ * Output:
+ *      - nsxInst       : Updated NSx instance
+ *      - outFrame      : Pointer to output frame for each band
+ */
+void WebRtcNsx_Process(NsxHandle* nsxInst,
+                       const short* const* speechFrame,
+                       int num_bands,
+                       short* const* outFrame);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // WEBRTC_MODULES_AUDIO_PROCESSING_NS_INCLUDE_NOISE_SUPPRESSION_X_H_