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The Tor Browser
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neteq_delay_analyzer.h (2810B)

      1 /*
      2 *  Copyright (c) 2017 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_NETEQ_TOOLS_NETEQ_DELAY_ANALYZER_H_
     12 #define MODULES_AUDIO_CODING_NETEQ_TOOLS_NETEQ_DELAY_ANALYZER_H_
     13 
     14 #include <cstddef>
     15 #include <cstdint>
     16 #include <map>
     17 #include <optional>
     18 #include <set>
     19 #include <utility>
     20 #include <vector>
     21 
     22 #include "absl/strings/string_view.h"
     23 #include "api/audio/audio_frame.h"
     24 #include "api/neteq/neteq.h"
     25 #include "modules/audio_coding/neteq/tools/neteq_test.h"
     26 #include "modules/rtp_rtcp/source/rtp_packet_received.h"
     27 
     28 namespace webrtc {
     29 namespace test {
     30 
     31 class NetEqDelayAnalyzer : public test::NetEqPostInsertPacket,
     32                           public test::NetEqGetAudioCallback {
     33 public:
     34  void AfterInsertPacket(const RtpPacketReceived& packet,
     35                         NetEq* neteq) override;
     36 
     37  void BeforeGetAudio(NetEq* neteq) override;
     38 
     39  void AfterGetAudio(int64_t time_now_ms,
     40                     const AudioFrame& audio_frame,
     41                     bool muted,
     42                     NetEq* neteq) override;
     43 
     44  using Delays = std::vector<std::pair<int64_t, float>>;
     45  void CreateGraphs(Delays* arrival_delay_ms,
     46                    Delays* corrected_arrival_delay_ms,
     47                    Delays* playout_delay_ms,
     48                    Delays* target_delay_ms) const;
     49 
     50  // Creates a matlab script with file name script_name. When executed in
     51  // Matlab, the script will generate graphs with the same timing information
     52  // as provided by CreateGraphs.
     53  void CreateMatlabScript(absl::string_view script_name) const;
     54 
     55  // Creates a python script with file name `script_name`. When executed in
     56  // Python, the script will generate graphs with the same timing information
     57  // as provided by CreateGraphs.
     58  void CreatePythonScript(absl::string_view script_name) const;
     59 
     60 private:
     61  struct TimingData {
     62    explicit TimingData(int64_t at) : arrival_time_ms(at) {}
     63    int64_t arrival_time_ms;
     64    std::optional<int64_t> decode_get_audio_count;
     65    std::optional<int64_t> sync_delay_ms;
     66    std::optional<int> target_delay_ms;
     67    std::optional<int> current_delay_ms;
     68  };
     69  std::map<uint32_t, TimingData> data_;
     70  std::vector<int64_t> get_audio_time_ms_;
     71  size_t get_audio_count_ = 0;
     72  size_t last_sync_buffer_ms_ = 0;
     73  int last_sample_rate_hz_ = 0;
     74  std::set<uint32_t> ssrcs_;
     75  std::set<int> payload_types_;
     76 };
     77 
     78 }  // namespace test
     79 }  // namespace webrtc
     80 #endif  // MODULES_AUDIO_CODING_NETEQ_TOOLS_NETEQ_DELAY_ANALYZER_H_