Index: webrtc/modules/audio_processing/test/fake_rec_device_linear.cc |
diff --git a/webrtc/modules/audio_processing/test/fake_rec_device_linear.cc b/webrtc/modules/audio_processing/test/fake_rec_device_linear.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8cc649fb2fd3ad26521a340302f6b3f418bc4099 |
--- /dev/null |
+++ b/webrtc/modules/audio_processing/test/fake_rec_device_linear.cc |
@@ -0,0 +1,60 @@ |
+/* |
+ * Copyright (c) 2017 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 "webrtc/modules/audio_processing/test/fake_rec_device_linear.h" |
+ |
+#include "webrtc/base/logging.h" |
+ |
+namespace webrtc { |
+namespace test { |
+ |
+FakeRecordingDeviceLinear::FakeRecordingDeviceLinear(int initial_mic_level) |
+ : FakeRecordingDevice(initial_mic_level) {} |
+ |
+FakeRecordingDeviceLinear::~FakeRecordingDeviceLinear() = default; |
+ |
+void FakeRecordingDeviceLinear::ModifySampleInt16(int16_t* sample) { |
+ float sample_f = static_cast<float>(*sample); |
+ rtc::Optional<int> undo_level = undo_mic_level(); |
+ |
+ // Virtually restore the unmodified microphone level. |
+ if (undo_level) { |
+ if (*undo_level == 0) { |
+ LOG(LS_INFO) << "undo level is zero, cannot undo mic level"; |
+ } else { |
+ sample_f = ClipSampleInt16( |
+ sample_f * 255.0f / static_cast<float>(*undo_level)); |
+ } |
+ } |
AleBzk
2017/05/17 11:52:24
Let's continue the discussion about clipping betwe
|
+ |
+ // Simulate the mic gain. |
+ *sample = ClipSampleInt16( |
+ sample_f * static_cast<float>(mic_level()) / 255.0f); |
+} |
+ |
+void FakeRecordingDeviceLinear::ModifySampleFloat(float* sample) { |
+ rtc::Optional<int> undo_level = undo_mic_level(); |
+ |
+ // Virtually restore the unmodified microphone level. |
+ if (undo_level) { |
+ if (*undo_level == 0) { |
+ LOG(LS_INFO) << "undo level is zero, cannot undo mic level"; |
+ } else { |
+ *sample = ClipSampleFloat( |
+ *sample * 255.0f / static_cast<float>(*undo_level)); |
+ } |
+ } |
+ |
+ // Simulate the mic gain. |
+ *sample = ClipSampleFloat(*sample * static_cast<float>(mic_level()) / 255.0f); |
+} |
+ |
+} // namespace test |
+} // namespace webrtc |