Adding DebugDumpReplayer.

webrtc/modules/audio_processing/test/debug_dump_replayer.h

Index: webrtc/modules/audio_processing/test/debug_dump_replayer.h
diff --git a/webrtc/modules/audio_processing/test/debug_dump_replayer.h b/webrtc/modules/audio_processing/test/debug_dump_replayer.h
new file mode 100644
index 0000000000000000000000000000000000000000..09022542d91c3227c635fc9d09b512080e4a49a9
--- /dev/null
+++ b/webrtc/modules/audio_processing/test/debug_dump_replayer.h
@@ -0,0 +1,73 @@
+/*
+ *  Copyright (c) 2016 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_TEST_DEBUG_DUMP_REPLAYER_H_
+#define WEBRTC_MODULES_AUDIO_PROCESSING_TEST_DEBUG_DUMP_REPLAYER_H_
+
+#include <memory>
+#include <string>
+
+#include "webrtc/common_audio/channel_buffer.h"
+#include "webrtc/modules/audio_processing/debug.pb.h"
+#include "webrtc/modules/audio_processing/include/audio_processing.h"
+
+namespace webrtc {
+namespace test {
+
+class DebugDumpReplayer {
+ public:
+  DebugDumpReplayer();
+  ~DebugDumpReplayer();
+
+  // Set dump file
+  bool SetDumpFile(const std::string& filename);
+
+  // Return next event.
+  rtc::Optional<audioproc::Event> GetNextEvent() const;
+
+  // Run the next event. Returns true if succeeded.
+  bool RunNextEvent();
+
+  const ChannelBuffer<float>* GetOutput() const;
+  StreamConfig GetOutputConfig() const;
+
+ private:
+  // Following functions are facilities for replaying debug dumps.
+  void OnInitEvent(const audioproc::Init& msg);
+  void OnStreamEvent(const audioproc::Stream& msg);
+  void OnReverseStreamEvent(const audioproc::ReverseStream& msg);
+  void OnConfigEvent(const audioproc::Config& msg);
+
+  void MaybeRecreateApm(const audioproc::Config& msg);
+  void ConfigureApm(const audioproc::Config& msg);
+
+  void LoadNextMessage();
+
+  // Buffer for APM input/output.
+  std::unique_ptr<ChannelBuffer<float>> input_;
+  std::unique_ptr<ChannelBuffer<float>> reverse_;
+  std::unique_ptr<ChannelBuffer<float>> output_;
+
+  std::unique_ptr<AudioProcessing> apm_;
+
+  FILE* debug_file_;
+
+  StreamConfig input_config_;
+  StreamConfig reverse_config_;
+  StreamConfig output_config_;
+
+  bool has_next_event_;
+  audioproc::Event next_event_;
+};
+
+}  // namespace test
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_PROCESSING_TEST_DEBUG_DUMP_REPLAYER_H_