Refactor neteq_rtpplay

webrtc/modules/audio_coding/neteq/tools/neteq_test.cc

+/*
+ *  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.
+ */
+
+#include "webrtc/modules/audio_coding/neteq/tools/neteq_test.h"
+
+#include <iostream>
+
+#include "webrtc/modules/audio_coding/codecs/builtin_audio_decoder_factory.h"
+
+namespace webrtc {
+namespace test {
+
+void DefaultNetEqTestErrorCallback::OnInsertPacketError(
+    int error_code,
+    const NetEqInput::PacketData& packet) {
+  if (error_code == NetEq::kUnknownRtpPayloadType) {
+    std::cerr << "RTP Payload type "
+              << static_cast<int>(packet.header.header.payloadType)
+              << " is unknown." << std::endl;
+  } else {
+    std::cerr << "InsertPacket returned error code " << error_code << std::endl;
+    std::cerr << "Header data:" << std::endl;
+    std::cerr << "  PT = " << static_cast<int>(packet.header.header.payloadType)
+              << std::endl;
+    std::cerr << "  SN = " << packet.header.header.sequenceNumber << std::endl;
+    std::cerr << "  TS = " << packet.header.header.timestamp << std::endl;
+  }
+  FATAL();
+}
+
+void DefaultNetEqTestErrorCallback::OnGetAudioError(int error_code) {
+  std::cerr << "GetAudio returned error code " << error_code << std::endl;
+  FATAL();
+}
+
+NetEqTest::NetEqTest(const NetEq::Config& config,
+                     const DecoderMap& codecs,
+                     const ExtDecoderMap& ext_codecs,
+                     std::unique_ptr<NetEqInput> input,
+                     std::unique_ptr<AudioSink> output,
+                     NetEqTestErrorCallback* error_callback)
+    : neteq_(NetEq::Create(config, CreateBuiltinAudioDecoderFactory())),
+      input_(std::move(input)),
+      output_(std::move(output)),
+      error_callback_(error_callback),
+      sample_rate_hz_(config.sample_rate_hz) {
+  RTC_CHECK(!config.enable_muted_state)
+      << "The code does not handle enable_muted_state";
+  RegisterDecoders(codecs);
+  RegisterExternalDecoders(ext_codecs);
+}
+
+int64_t NetEqTest::Run() {
+  const int64_t start_time_ms = *input_->NextEventTime();
+  int64_t time_now_ms = start_time_ms;
+
+  while (!input_->ended()) {
+    // Advance time to next event.
+    RTC_DCHECK(input_->NextEventTime());
+    time_now_ms = *input_->NextEventTime();
+    // Check if it is time to insert packet.
+    if (input_->NextPacketTime() && time_now_ms >= *input_->NextPacketTime()) {
+      std::unique_ptr<NetEqInput::PacketData> packet_data = input_->PopPacket();
+      RTC_CHECK(packet_data);
+      int error = neteq_->InsertPacket(
+          packet_data->header,
+          rtc::ArrayView<const uint8_t>(packet_data->payload),
+          static_cast<uint32_t>(packet_data->time_ms * sample_rate_hz_ / 1000));
+      if (error != NetEq::kOK && error_callback_) {
+        error_callback_->OnInsertPacketError(neteq_->LastError(), *packet_data);
+      }
+    }
+
+    // Check if it is time to get output audio.
+    if (input_->NextOutputEventTime() &&
+        time_now_ms >= *input_->NextOutputEventTime()) {
+      AudioFrame out_frame;
+      bool muted;
+      int error = neteq_->GetAudio(&out_frame, &muted);
+      RTC_CHECK(!muted) << "The code does not handle enable_muted_state";
+      if (error != NetEq::kOK) {
+        if (error_callback_) {
+          error_callback_->OnGetAudioError(neteq_->LastError());
+        }
+      } else {
+        sample_rate_hz_ = out_frame.sample_rate_hz_;
+      }
+
+      if (output_) {
+        RTC_CHECK(output_->WriteArray(
+            out_frame.data_,
+            out_frame.samples_per_channel_ * out_frame.num_channels_));
+      }
+
+      input_->AdvanceOutputEvent();
+    }
+  }
+  return time_now_ms - start_time_ms;
+}
+
+NetEqNetworkStatistics NetEqTest::SimulationStats() {
+  NetEqNetworkStatistics stats;
+  RTC_CHECK_EQ(neteq_->NetworkStatistics(&stats), 0);
+  return stats;
+}
+
+void NetEqTest::RegisterDecoders(const DecoderMap& codecs) {
+  for (const auto& c : codecs) {
+    RTC_CHECK_EQ(
+        neteq_->RegisterPayloadType(c.second.first, c.second.second, c.first),
+        NetEq::kOK)
+        << "Cannot register " << c.second.second << " to payload type "
+        << c.first;
+  }
+}
+
+void NetEqTest::RegisterExternalDecoders(const ExtDecoderMap& codecs) {
+  for (const auto& c : codecs) {
+    RTC_CHECK_EQ(
+        neteq_->RegisterExternalDecoder(c.second.decoder, c.second.codec,
+                                        c.second.codec_name, c.first),
+        NetEq::kOK)
+        << "Cannot register " << c.second.codec_name << " to payload type "
+        << c.first;
+  }
+}
+
+}  // namespace test
+}  // namespace webrtc