tor-browser

The Tor Browser
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call_statistics.h (2276B)


      1 /*
      2 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
      3 *
      4 *  Use of this source code is governed by a BSD-style license
      5 *  that can be found in the LICENSE file in the root of the source
      6 *  tree. An additional intellectual property rights grant can be found
      7 *  in the file PATENTS.  All contributing project authors may
      8 *  be found in the AUTHORS file in the root of the source tree.
      9 */
     10 
     11 #ifndef MODULES_AUDIO_CODING_ACM2_CALL_STATISTICS_H_
     12 #define MODULES_AUDIO_CODING_ACM2_CALL_STATISTICS_H_
     13 
     14 #include "api/audio/audio_frame.h"
     15 #include "modules/audio_coding/include/audio_coding_module_typedefs.h"
     16 
     17 //
     18 // This class is for book keeping of calls to ACM. It is not useful to log API
     19 // calls which are supposed to be called every 10ms, e.g. PlayoutData10Ms(),
     20 // however, it is useful to know the number of such calls in a given time
     21 // interval. The current implementation covers calls to PlayoutData10Ms() with
     22 // detailed accounting of the decoded speech type.
     23 //
     24 // Thread Safety
     25 // =============
     26 // Please note that this class in not thread safe. The class must be protected
     27 // if different APIs are called from different threads.
     28 //
     29 
     30 namespace webrtc {
     31 
     32 namespace acm2 {
     33 
     34 class CallStatistics {
     35 public:
     36  CallStatistics() {}
     37  ~CallStatistics() {}
     38 
     39  // Call this method to indicate that NetEq engaged in decoding. `speech_type`
     40  // is the audio-type according to NetEq, and `muted` indicates if the decoded
     41  // frame was produced in muted state.
     42  void DecodedByNetEq(AudioFrame::SpeechType speech_type, bool muted);
     43 
     44  // Call this method to indicate that a decoding call resulted in generating
     45  // silence, i.e. call to NetEq is bypassed and the output audio is zero.
     46  void DecodedBySilenceGenerator();
     47 
     48  // Get statistics for decoding. The statistics include the number of calls to
     49  // NetEq and silence generator, as well as the type of speech pulled of off
     50  // NetEq, c.f. declaration of AudioDecodingCallStats for detailed description.
     51  const AudioDecodingCallStats& GetDecodingStatistics() const;
     52 
     53 private:
     54  // Reset the decoding statistics.
     55  void ResetDecodingStatistics();
     56 
     57  AudioDecodingCallStats decoding_stat_;
     58 };
     59 
     60 }  // namespace acm2
     61 
     62 }  // namespace webrtc
     63 
     64 #endif  // MODULES_AUDIO_CODING_ACM2_CALL_STATISTICS_H_