Added empty directory with myself as owner for new mixer.

webrtc/modules/audio_mixer/test/alex_new_fancy_test.cc

+//#include "webrtc/common_types.h"
+
+// #include <chrono>
+// #include <thread>
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "webrtc/voice_engine/include/voe_base.h"
+#include "webrtc/voice_engine/include/voe_file.h"
+#include "webrtc/system_wrappers/include/sleep.h"
+// #include "webrtc/common_types.h"
+// #include "webrtc/voice_engine/channel_manager.h"
+// #include "webrtc/voice_engine/channel.h"
+#include "webrtc/modules/utility/include/file_player.h"
+
+#include "webrtc/voice_engine/include/voe_base.h"
+
+#include "webrtc/modules/audio_conference_mixer/include/audio_conference_mixer.h"
+#include "webrtc/modules/audio_conference_mixer/include/audio_conference_mixer_defines.h"
+
+#include <iostream>
+#include <fstream>
+
+#include "webrtc/modules/utility/include/process_thread.h"
+
+#include "webrtc/system_wrappers/include/trace.h"
+#include "webrtc/base/logging.h"
+
+namespace webrtc {
+
+namespace {
+
+using c_string = const char*;
+
+c_string river_1 = "down_to_pray_other_selection_mono_32kHz_pcm.raw",
+         river_2 = "down_to_pray_selection_mono_32kHz_pcm.raw";
+
+// file_name = "recorded_16kHz.pcm",
+//   file_name2 =  "one_two_three_16kHz_16bit_mono.pcm",
+//   file_name3 =  "alpha_beta_gamma_16kHz_16bit_mono.pcm",
+//   file_name4 =  "az_buky_vedy_16kHz_16bit_mono.pcm",
+c_string output_file =
+    "output_river_32kHz_mono_pcm.raw";  //"outfile_mixed_16kHz_mono.pcm";
+
+void FillAudioFrame(const int16_t* audio_buffer,
+                    AudioFrame* output,
+                    uint32_t sample_rate_hz) {
+  int id = 0;
+  uint32_t timestamp = 0;
+  size_t num_channels = 1;
+  size_t samples_per_channel = sample_rate_hz / 1000 * 10 * num_channels;
+
+  output->UpdateFrame(id, timestamp, audio_buffer, samples_per_channel,
+                      sample_rate_hz, AudioFrame::kNormalSpeech,
+                      AudioFrame::kVadActive, num_channels);
+}
+
+class MyMixerParticipant : public MixerParticipant {
+ public:
+  MyMixerParticipant(const char* file_name, FileFormats format)
+      : is_done_(false), fp_(FilePlayer::CreateFilePlayer(0, format)) {
+    switch (format) {
+      case kFileFormatPcm16kHzFile:
+        frequency_ = 16000;
+        break;
+      case kFileFormatPcm8kHzFile:
+        frequency_ = 8000;
+        break;
+      case kFileFormatPcm32kHzFile:
+        frequency_ = 32000;
+        break;
+      default:
+        RTC_CHECK(false);
+    }
+
+    if (fp_->StartPlayingFile(file_name,
+                              true,  // loop
+                              0,     // start pos
+                              1.0,   // volume scaling
+                              0  // notification time in ms, 0 = no notification
+                              ) == -1) {
+      RTC_CHECK(false);
+    }
+  }
+
+  int32_t NeededFrequency(int32_t id) const { return frequency_; }
+
+  bool is_done() { return is_done_; }
+
+  AudioFrameInfo GetAudioFrameWithMuted(int32_t id, AudioFrame* audio_frame) {
+    size_t length_in_samples;
+    if (fp_->Get10msAudioFromFile(buffer_, length_in_samples, frequency_) ==
+        -1) {
+      is_done_ = true;
+      return AudioFrameInfo::kError;
+    }
+    FillAudioFrame(buffer_, audio_frame, frequency_);
+    return AudioFrameInfo::kNormal;
+  }
+
+  ~MyMixerParticipant() { FilePlayer::DestroyFilePlayer(fp_); }
+
+ private:
+  bool is_done_;
+  FilePlayer* fp_;
+  int16_t buffer_[640];
+  uint32_t frequency_;
+};
+
+class MyAudioMixerOutputReceiver : public AudioMixerOutputReceiver {
+ public:
+  MyAudioMixerOutputReceiver(const char* file_name)
+      : out_file_(file_name, std::ios::out | std::ios::binary) {
+    WEBRTC_TRACE(kTraceStream, kTraceVoice, 12345, "recv::recv(file_name=%s)",
+                 file_name);
+
+    LOG(LS_WARNING) << "recv::recv, file_name = " << file_name << "\n";
+  }
+
+  virtual void NewMixedAudio(const int32_t id,
+                             const AudioFrame& generalAudioFrame,
+                             const AudioFrame** uniqueAudioFrames,
+                             const uint32_t size) {
+    size_t size_of_data = sizeof(int16_t) *
+                          generalAudioFrame.samples_per_channel_ *
+                          generalAudioFrame.num_channels_;
+
+    // LOG(LS_WARNING) << "recv::newMixedAudio, size_of_data = " << size_of_data
+    // << "\n";
+
+    // do something with the frame...
+    out_file_.write(reinterpret_cast<const char*>(generalAudioFrame.data_),
+                    size_of_data);
+  }
+
+  ~MyAudioMixerOutputReceiver() { out_file_.close(); }
+
+ private:
+  std::ofstream out_file_;
+};
+}
+
+TEST(AudioConferenceMixer, PlayBackFile) {
+  VoiceEngine* m_voe = VoiceEngine::Create();
+  VoEFile* file = VoEFile::GetInterface(m_voe);
+  VoEBase* base = VoEBase::GetInterface(m_voe);
+
+  base->Init();
+
+  MyMixerParticipant mmp(river_1, kFileFormatPcm32kHzFile);
+  MyMixerParticipant mmp2(river_2, kFileFormatPcm32kHzFile);
+  // MyMixerParticipant mmp3(file_name3, kFileFormatPcm16kHzFile);
+  // MyMixerParticipant mmp4(file_name4, kFileFormatPcm16kHzFile);
+  // MyMixerParticipant mmp3(file_name2, kFileFormatPcm16kHzFile);
+  // MyMixerParticipant mmp4(file_name2, kFileFormatPcm16kHzFile);
+  MyAudioMixerOutputReceiver mamop(output_file);
+
+  AudioConferenceMixer* acm = AudioConferenceMixer::Create(0);
+  acm->RegisterMixedStreamCallback(&mamop);
+  acm->SetMixabilityStatus(&mmp, true);
+  acm->SetMixabilityStatus(&mmp2, true);
+  // acm->SetMixabilityStatus(&mmp3, true);
+  // acm->SetMixabilityStatus(&mmp4, true);
+
+  std::unique_ptr<ProcessThread> my_new_process_thread =
+      ProcessThread::Create("my-new-process-thread");
+
+  my_new_process_thread->RegisterModule(acm);
+  my_new_process_thread->Start();
+  SleepMs(60000);
+  my_new_process_thread->Stop();
+
+  int ch = base->CreateChannel();
+  base->StartPlayout(ch);
+  file->StartPlayingFileLocally(ch, output_file, false,
+                                kFileFormatPcm32kHzFile);
+
+  // SleepMs(1000);
+
+  file->StopPlayingFileLocally(ch);
+
+  base->Terminate();
+  base->Release();
+  file->Release();
+  VoiceEngine::Delete(m_voe);
+}
+}