Reland "Added ACM_dump protobuf, class for reading/writing and..."

webrtc/modules/audio_coding/main/acm2/acm_dump.h

+/*
+ *  Copyright (c) 2015 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_MAIN_ACM2_ACM_DUMP_H_
+#define WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_ACM_DUMP_H_
+
+#include <string>
+
+#include "webrtc/base/scoped_ptr.h"
+
+namespace webrtc {
+
+// Forward declaration of storage class that is automatically generated from
+// the protobuf file.
+class ACMDumpEventStream;
+
+class AcmDumpImpl;
+
+class AcmDump {
+ public:
+  // The types of debug events that are currently supported for logging.
+  enum class DebugEvent { kLogStart, kLogEnd, kAudioPlayout };
+
+  virtual ~AcmDump() {}
+
+  static rtc::scoped_ptr<AcmDump> Create();
+
+  // Starts logging for the specified duration to the specified file.
+  // The logging will stop automatically after the specified duration.
+  // If the file already exists it will be overwritten.
+  // The function will return false on failure.
+  virtual void StartLogging(const std::string& file_name, int duration_ms) = 0;
+
+  // Logs an incoming or outgoing RTP packet.
+  virtual void LogRtpPacket(bool incoming,
+                            const uint8_t* packet,
+                            size_t length) = 0;
+
+  // Logs a debug event, with optional message.
+  virtual void LogDebugEvent(DebugEvent event_type,
+                             const std::string& event_message) = 0;
+  virtual void LogDebugEvent(DebugEvent event_type) = 0;
+
+  // Reads an AcmDump file and returns true when reading was successful.
+  // The result is stored in the given ACMDumpEventStream object.
+  static bool ParseAcmDump(const std::string& file_name,
+                           ACMDumpEventStream* result);
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_ACM_DUMP_H_