Make an AudioEncoder subclass for comfort noise

BUG=3926
R=bjornv@webrtc.org, kjellander@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/31129004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7857 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h b/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h
new file mode 100644
index 0000000..fe2ace9
--- /dev/null
+++ b/webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h
@@ -0,0 +1,40 @@
+/*
+ *  Copyright (c) 2014 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_MOCK_MOCK_AUDIO_ENCODER_H_
+#define WEBRTC_MODULES_AUDIO_CODING_CODECS_MOCK_MOCK_AUDIO_ENCODER_H_
+
+#include "webrtc/modules/audio_coding/codecs/audio_encoder.h"
+
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace webrtc {
+
+class MockAudioEncoder : public AudioEncoder {
+ public:
+  virtual ~MockAudioEncoder() { Die(); }
+  MOCK_METHOD0(Die, void());
+  MOCK_CONST_METHOD0(sample_rate_hz, int());
+  MOCK_CONST_METHOD0(num_channels, int());
+  MOCK_CONST_METHOD0(Num10MsFramesInNextPacket, int());
+  MOCK_CONST_METHOD0(Max10MsFramesInAPacket, int());
+  // Note, we explicitly chose not to create a mock for the Encode method.
+  MOCK_METHOD6(EncodeInternal,
+               bool(uint32_t timestamp,
+                    const int16_t* audio,
+                    size_t max_encoded_bytes,
+                    uint8_t* encoded,
+                    size_t* encoded_bytes,
+                    EncodedInfo* info));
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_MOCK_MOCK_AUDIO_ENCODER_H_