Support for Signal calls.

Merge in RedPhone

// FREEBIE

jni/webrtc/modules/audio_coding/codecs/pcm16b/OWNERS

@@ -0,0 +1,5 @@
+
+# These are for the common case of adding or renaming files. If you're doing
+# structural changes, please get a review from a reviewer in this file.
+per-file *.gyp=*
+per-file *.gypi=*

jni/webrtc/modules/audio_coding/codecs/pcm16b/include/pcm16b.h

@@ -0,0 +1,106 @@
+/*
+ *  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.
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_MAIN_INTERFACE_PCM16B_H_
+#define WEBRTC_MODULES_AUDIO_CODING_CODECS_PCM16B_MAIN_INTERFACE_PCM16B_H_
+/*
+ * Define the fixpoint numeric formats
+ */
+
+#include "typedefs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/****************************************************************************
+ * WebRtcPcm16b_EncodeW16(...)
+ *
+ * "Encode" a sample vector to 16 bit linear (Encoded standard is big endian)
+ *
+ * Input:
+ *    - speechIn16b    : Input speech vector
+ *    - length_samples : Number of samples in speech vector
+ *
+ * Output:
+ *    - speechOut16b   : Encoded data vector (big endian 16 bit)
+ *
+ * Returned value      : Size in bytes of speechOut16b
+ */
+
+int16_t WebRtcPcm16b_EncodeW16(const int16_t* speechIn16b,
+                               int16_t length_samples,
+                               int16_t* speechOut16b);
+
+/****************************************************************************
+ * WebRtcPcm16b_Encode(...)
+ *
+ * "Encode" a sample vector to 16 bit linear (Encoded standard is big endian)
+ *
+ * Input:
+ *		- speech16b		: Input speech vector
+ *		- len			: Number of samples in speech vector
+ *
+ * Output:
+ *		- speech8b		: Encoded data vector (big endian 16 bit)
+ *
+ * Returned value		: Size in bytes of speech8b
+ */
+
+int16_t WebRtcPcm16b_Encode(int16_t *speech16b,
+                            int16_t len,
+                            unsigned char *speech8b);
+
+/****************************************************************************
+ * WebRtcPcm16b_DecodeW16(...)
+ *
+ * "Decode" a vector to 16 bit linear (Encoded standard is big endian)
+ *
+ * Input:
+ *    - speechIn16b  : Encoded data vector (big endian 16 bit)
+ *    - length_bytes : Number of bytes in speechIn16b
+ *
+ * Output:
+ *    - speechOut16b : Decoded speech vector
+ *
+ * Returned value    : Samples in speechOut16b
+ */
+
+int16_t WebRtcPcm16b_DecodeW16(void *inst,
+                               int16_t *speechIn16b,
+                               int16_t length_bytes,
+                               int16_t *speechOut16b,
+                               int16_t* speechType);
+
+/****************************************************************************
+ * WebRtcPcm16b_Decode(...)
+ *
+ * "Decode" a vector to 16 bit linear (Encoded standard is big endian)
+ *
+ * Input:
+ *		- speech8b		: Encoded data vector (big endian 16 bit)
+ *		- len			: Number of bytes in speech8b
+ *
+ * Output:
+ *		- speech16b		: Decoded speech vector
+ *
+ * Returned value		: Samples in speech16b
+ */
+
+
+int16_t WebRtcPcm16b_Decode(unsigned char *speech8b,
+                            int16_t len,
+                            int16_t *speech16b);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PCM16B */

jni/webrtc/modules/audio_coding/codecs/pcm16b/pcm16b.c

@@ -0,0 +1,104 @@
+/*
+ *  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.
+ */
+
+
+#include "pcm16b.h"
+
+#include <stdlib.h>
+#ifdef WEBRTC_ARCH_BIG_ENDIAN
+#include <string.h>
+#endif
+
+#include "typedefs.h"
+
+#define HIGHEND 0xFF00
+#define LOWEND    0xFF
+
+
+
+/* Encoder with int16_t Output */
+int16_t WebRtcPcm16b_EncodeW16(const int16_t* speechIn16b,
+                               int16_t length_samples,
+                               int16_t* speechOut16b)
+{
+#ifdef WEBRTC_ARCH_BIG_ENDIAN
+    memcpy(speechOut16b, speechIn16b, length_samples * sizeof(int16_t));
+#else
+    int i;
+    for (i = 0; i < length_samples; i++) {
+        speechOut16b[i]=(((uint16_t)speechIn16b[i])>>8)|((((uint16_t)speechIn16b[i])<<8)&0xFF00);
+    }
+#endif
+    return length_samples << 1;
+}
+
+
+/* Encoder with char Output (old version) */
+int16_t WebRtcPcm16b_Encode(int16_t *speech16b,
+                            int16_t len,
+                            unsigned char *speech8b)
+{
+    int16_t samples=len*2;
+    int16_t pos;
+    int16_t short1;
+    int16_t short2;
+    for (pos=0;pos<len;pos++) {
+        short1=HIGHEND & speech16b[pos];
+        short2=LOWEND & speech16b[pos];
+        short1=short1>>8;
+        speech8b[pos*2]=(unsigned char) short1;
+        speech8b[pos*2+1]=(unsigned char) short2;
+    }
+    return(samples);
+}
+
+
+/* Decoder with int16_t Input instead of char when the int16_t Encoder is used */
+int16_t WebRtcPcm16b_DecodeW16(void *inst,
+                               int16_t *speechIn16b,
+                               int16_t length_bytes,
+                               int16_t *speechOut16b,
+                               int16_t* speechType)
+{
+#ifdef WEBRTC_ARCH_BIG_ENDIAN
+    memcpy(speechOut16b, speechIn16b, length_bytes);
+#else
+    int i;
+    int samples = length_bytes >> 1;
+
+    for (i=0;i<samples;i++) {
+        speechOut16b[i]=(((uint16_t)speechIn16b[i])>>8)|(((uint16_t)(speechIn16b[i]&0xFF))<<8);
+    }
+#endif
+
+    *speechType=1;
+
+    // Avoid warning.
+    (void)(inst = NULL);
+
+    return length_bytes >> 1;
+}
+
+/* "old" version of the decoder that uses char as input (not used in NetEq any more) */
+int16_t WebRtcPcm16b_Decode(unsigned char *speech8b,
+                            int16_t len,
+                            int16_t *speech16b)
+{
+    int16_t samples=len>>1;
+    int16_t pos;
+    int16_t shortval;
+    for (pos=0;pos<samples;pos++) {
+        shortval=((unsigned short) speech8b[pos*2]);
+        shortval=(shortval<<8)&HIGHEND;
+        shortval=shortval|(((unsigned short) speech8b[pos*2+1])&LOWEND);
+        speech16b[pos]=shortval;
+    }
+    return(samples);
+}

jni/webrtc/modules/audio_coding/codecs/pcm16b/pcm16b.gypi

@@ -0,0 +1,30 @@
+# 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'PCM16B',
+      'type': 'static_library',
+      'include_dirs': [
+        'include',
+        '<(webrtc_root)',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          'include',
+          '<(webrtc_root)',
+        ],
+      },
+      'sources': [
+        'include/pcm16b.h',
+        'pcm16b.c',
+      ],
+    },
+  ], # targets
+}