modules/audio_coding/test/iSACTest.cc - src.git - Git at Google

 /*
  *  Copyright (c) 2012 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 "modules/audio_coding/test/iSACTest.h"

 #include <ctype.h>
 #include <stdio.h>
 #include <string.h>

 #ifdef _WIN32
 #include <windows.h>
 #elif defined(WEBRTC_LINUX)
 #include <time.h>
 #else
 #include <sys/time.h>
 #include <time.h>
 #endif

 #include "modules/audio_coding/codecs/audio_format_conversion.h"
 #include "modules/audio_coding/test/utility.h"
 #include "system_wrappers/include/event_wrapper.h"
 #include "test/testsupport/fileutils.h"

 namespace webrtc {

 void SetISACConfigDefault(ACMTestISACConfig& isacConfig) {
   isacConfig.currentRateBitPerSec = 0;
   isacConfig.currentFrameSizeMsec = 0;
   isacConfig.encodingMode = -1;
   isacConfig.initRateBitPerSec = 0;
   isacConfig.initFrameSizeInMsec = 0;
   isacConfig.enforceFrameSize = false;
   return;
 }

 int16_t SetISAConfig(ACMTestISACConfig& isacConfig, AudioCodingModule* acm,
                      int testMode) {

   if ((isacConfig.currentRateBitPerSec != 0)
       || (isacConfig.currentFrameSizeMsec != 0)) {
     auto sendCodec = acm->SendCodec();
     EXPECT_TRUE(sendCodec);
     if (isacConfig.currentRateBitPerSec < 0) {
       // Register iSAC in adaptive (channel-dependent) mode.
       sendCodec->rate = -1;
       EXPECT_EQ(0, acm->RegisterSendCodec(*sendCodec));
     } else {
       if (isacConfig.currentRateBitPerSec != 0) {
         sendCodec->rate = isacConfig.currentRateBitPerSec;
       }
       if (isacConfig.currentFrameSizeMsec != 0) {
         sendCodec->pacsize = isacConfig.currentFrameSizeMsec
             * (sendCodec->plfreq / 1000);
       }
       EXPECT_EQ(0, acm->RegisterSendCodec(*sendCodec));
     }
   }

   return 0;
 }

 ISACTest::ISACTest(int testMode)
     : _acmA(AudioCodingModule::Create()),
       _acmB(AudioCodingModule::Create()),
       _testMode(testMode) {}

 ISACTest::~ISACTest() {}

 void ISACTest::Setup() {
   int codecCntr;
   CodecInst codecParam;

   for (codecCntr = 0; codecCntr < AudioCodingModule::NumberOfCodecs();
       codecCntr++) {
     EXPECT_EQ(0, AudioCodingModule::Codec(codecCntr, &codecParam));
     if (!STR_CASE_CMP(codecParam.plname, "ISAC")
         && codecParam.plfreq == 16000) {
       memcpy(&_paramISAC16kHz, &codecParam, sizeof(CodecInst));
       _idISAC16kHz = codecCntr;
     }
     if (!STR_CASE_CMP(codecParam.plname, "ISAC")
         && codecParam.plfreq == 32000) {
       memcpy(&_paramISAC32kHz, &codecParam, sizeof(CodecInst));
       _idISAC32kHz = codecCntr;
     }
   }

   // Register both iSAC-wb & iSAC-swb in both sides as receiver codecs.
   EXPECT_EQ(true, _acmA->RegisterReceiveCodec(_paramISAC16kHz.pltype,
                                               CodecInstToSdp(_paramISAC16kHz)));
   EXPECT_EQ(true, _acmA->RegisterReceiveCodec(_paramISAC32kHz.pltype,
                                               CodecInstToSdp(_paramISAC32kHz)));
   EXPECT_EQ(true, _acmB->RegisterReceiveCodec(_paramISAC16kHz.pltype,
                                               CodecInstToSdp(_paramISAC16kHz)));
   EXPECT_EQ(true, _acmB->RegisterReceiveCodec(_paramISAC32kHz.pltype,
                                               CodecInstToSdp(_paramISAC32kHz)));

   //--- Set A-to-B channel
   _channel_A2B.reset(new Channel);
   EXPECT_EQ(0, _acmA->RegisterTransportCallback(_channel_A2B.get()));
   _channel_A2B->RegisterReceiverACM(_acmB.get());

   //--- Set B-to-A channel
   _channel_B2A.reset(new Channel);
   EXPECT_EQ(0, _acmB->RegisterTransportCallback(_channel_B2A.get()));
   _channel_B2A->RegisterReceiverACM(_acmA.get());

   file_name_swb_ = webrtc::test::ResourcePath("audio_coding/testfile32kHz",
                                               "pcm");

   EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));
   EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));

   _inFileA.Open(file_name_swb_, 32000, "rb");
   // Set test length to 500 ms (50 blocks of 10 ms each).
   _inFileA.SetNum10MsBlocksToRead(50);
   // Fast-forward 1 second (100 blocks) since the files start with silence.
   _inFileA.FastForward(100);
   std::string fileNameA = webrtc::test::OutputPath() + "testisac_a.pcm";
   std::string fileNameB = webrtc::test::OutputPath() + "testisac_b.pcm";
   _outFileA.Open(fileNameA, 32000, "wb");
   _outFileB.Open(fileNameB, 32000, "wb");

   while (!_inFileA.EndOfFile()) {
     Run10ms();
   }
   CodecInst receiveCodec;
   EXPECT_EQ(0, _acmA->ReceiveCodec(&receiveCodec));
   EXPECT_EQ(0, _acmB->ReceiveCodec(&receiveCodec));

   _inFileA.Close();
   _outFileA.Close();
   _outFileB.Close();
 }

 void ISACTest::Perform() {
   Setup();

   int16_t testNr = 0;
   ACMTestISACConfig wbISACConfig;
   ACMTestISACConfig swbISACConfig;

   SetISACConfigDefault(wbISACConfig);
   SetISACConfigDefault(swbISACConfig);

   wbISACConfig.currentRateBitPerSec = -1;
   swbISACConfig.currentRateBitPerSec = -1;
   testNr++;
   EncodeDecode(testNr, wbISACConfig, swbISACConfig);

   if (_testMode != 0) {
     SetISACConfigDefault(wbISACConfig);
     SetISACConfigDefault(swbISACConfig);

     wbISACConfig.currentRateBitPerSec = -1;
     swbISACConfig.currentRateBitPerSec = -1;
     wbISACConfig.initRateBitPerSec = 13000;
     wbISACConfig.initFrameSizeInMsec = 60;
     swbISACConfig.initRateBitPerSec = 20000;
     swbISACConfig.initFrameSizeInMsec = 30;
     testNr++;
     EncodeDecode(testNr, wbISACConfig, swbISACConfig);

     SetISACConfigDefault(wbISACConfig);
     SetISACConfigDefault(swbISACConfig);

     wbISACConfig.currentRateBitPerSec = 20000;
     swbISACConfig.currentRateBitPerSec = 48000;
     testNr++;
     EncodeDecode(testNr, wbISACConfig, swbISACConfig);

     wbISACConfig.currentRateBitPerSec = 16000;
     swbISACConfig.currentRateBitPerSec = 30000;
     wbISACConfig.currentFrameSizeMsec = 60;
     testNr++;
     EncodeDecode(testNr, wbISACConfig, swbISACConfig);
   }

   SetISACConfigDefault(wbISACConfig);
   SetISACConfigDefault(swbISACConfig);
   testNr++;
   EncodeDecode(testNr, wbISACConfig, swbISACConfig);

   testNr++;
   if (_testMode == 0) {
     SwitchingSamplingRate(testNr, 4);
   } else {
     SwitchingSamplingRate(testNr, 80);
   }
 }

 void ISACTest::Run10ms() {
   AudioFrame audioFrame;
   EXPECT_GT(_inFileA.Read10MsData(audioFrame), 0);
   EXPECT_GE(_acmA->Add10MsData(audioFrame), 0);
   EXPECT_GE(_acmB->Add10MsData(audioFrame), 0);
   bool muted;
   EXPECT_EQ(0, _acmA->PlayoutData10Ms(32000, &audioFrame, &muted));
   ASSERT_FALSE(muted);
   _outFileA.Write10MsData(audioFrame);
   EXPECT_EQ(0, _acmB->PlayoutData10Ms(32000, &audioFrame, &muted));
   ASSERT_FALSE(muted);
   _outFileB.Write10MsData(audioFrame);
 }

 void ISACTest::EncodeDecode(int testNr, ACMTestISACConfig& wbISACConfig,
                             ACMTestISACConfig& swbISACConfig) {
   // Files in Side A and B
   _inFileA.Open(file_name_swb_, 32000, "rb", true);
   _inFileB.Open(file_name_swb_, 32000, "rb", true);

   std::string file_name_out;
   std::stringstream file_stream_a;
   std::stringstream file_stream_b;
   file_stream_a << webrtc::test::OutputPath();
   file_stream_b << webrtc::test::OutputPath();
   file_stream_a << "out_iSACTest_A_" << testNr << ".pcm";
   file_stream_b << "out_iSACTest_B_" << testNr << ".pcm";
   file_name_out = file_stream_a.str();
   _outFileA.Open(file_name_out, 32000, "wb");
   file_name_out = file_stream_b.str();
   _outFileB.Open(file_name_out, 32000, "wb");

   EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC16kHz));
   EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));
   EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC32kHz));
   EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));

   // Side A is sending super-wideband, and side B is sending wideband.
   SetISAConfig(swbISACConfig, _acmA.get(), _testMode);
   SetISAConfig(wbISACConfig, _acmB.get(), _testMode);

   bool adaptiveMode = false;
   if ((swbISACConfig.currentRateBitPerSec == -1)
       || (wbISACConfig.currentRateBitPerSec == -1)) {
     adaptiveMode = true;
   }
   _myTimer.Reset();
   _channel_A2B->ResetStats();
   _channel_B2A->ResetStats();

   char currentTime[500];
   EventTimerWrapper* myEvent = EventTimerWrapper::Create();
   EXPECT_TRUE(myEvent->StartTimer(true, 10));
   while (!(_inFileA.EndOfFile() || _inFileA.Rewinded())) {
     Run10ms();
     _myTimer.Tick10ms();
     _myTimer.CurrentTimeHMS(currentTime);

     if ((adaptiveMode) && (_testMode != 0)) {
       myEvent->Wait(5000);
       EXPECT_TRUE(_acmA->SendCodec());
       EXPECT_TRUE(_acmB->SendCodec());
     }
   }

   if (_testMode != 0) {
     printf("\n\nSide A statistics\n\n");
     _channel_A2B->PrintStats(_paramISAC32kHz);

     printf("\n\nSide B statistics\n\n");
     _channel_B2A->PrintStats(_paramISAC16kHz);
   }

   _channel_A2B->ResetStats();
   _channel_B2A->ResetStats();

   _outFileA.Close();
   _outFileB.Close();
   _inFileA.Close();
   _inFileB.Close();
 }

 void ISACTest::SwitchingSamplingRate(int testNr, int maxSampRateChange) {
   // Files in Side A
   _inFileA.Open(file_name_swb_, 32000, "rb");
   _inFileB.Open(file_name_swb_, 32000, "rb");

   std::string file_name_out;
   std::stringstream file_stream_a;
   std::stringstream file_stream_b;
   file_stream_a << webrtc::test::OutputPath();
   file_stream_b << webrtc::test::OutputPath();
   file_stream_a << "out_iSACTest_A_" << testNr << ".pcm";
   file_stream_b << "out_iSACTest_B_" << testNr << ".pcm";
   file_name_out = file_stream_a.str();
   _outFileA.Open(file_name_out, 32000, "wb");
   file_name_out = file_stream_b.str();
   _outFileB.Open(file_name_out, 32000, "wb");

   // Start with side A sending super-wideband and side B seding wideband.
   // Toggle sending wideband/super-wideband in this test.
   EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));
   EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));

   int numSendCodecChanged = 0;
   _myTimer.Reset();
   char currentTime[50];
   while (numSendCodecChanged < (maxSampRateChange << 1)) {
     Run10ms();
     _myTimer.Tick10ms();
     _myTimer.CurrentTimeHMS(currentTime);
     if (_testMode == 2)
       printf("\r%s", currentTime);
     if (_inFileA.EndOfFile()) {
       if (_inFileA.SamplingFrequency() == 16000) {
         // Switch side A to send super-wideband.
         _inFileA.Close();
         _inFileA.Open(file_name_swb_, 32000, "rb");
         EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));
       } else {
         // Switch side A to send wideband.
         _inFileA.Close();
         _inFileA.Open(file_name_swb_, 32000, "rb");
         EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC16kHz));
       }
       numSendCodecChanged++;
     }

     if (_inFileB.EndOfFile()) {
       if (_inFileB.SamplingFrequency() == 16000) {
         // Switch side B to send super-wideband.
         _inFileB.Close();
         _inFileB.Open(file_name_swb_, 32000, "rb");
         EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC32kHz));
       } else {
         // Switch side B to send wideband.
         _inFileB.Close();
         _inFileB.Open(file_name_swb_, 32000, "rb");
         EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));
       }
       numSendCodecChanged++;
     }
   }
   _outFileA.Close();
   _outFileB.Close();
   _inFileA.Close();
   _inFileB.Close();
 }

 }  // namespace webrtc
	/*
	* Copyright (c) 2012 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 "modules/audio_coding/test/iSACTest.h"

	#include <ctype.h>
	#include <stdio.h>
	#include <string.h>

	#ifdef _WIN32
	#include <windows.h>
	#elif defined(WEBRTC_LINUX)
	#include <time.h>
	#else
	#include <sys/time.h>
	#include <time.h>
	#endif

	#include "modules/audio_coding/codecs/audio_format_conversion.h"
	#include "modules/audio_coding/test/utility.h"
	#include "system_wrappers/include/event_wrapper.h"
	#include "test/testsupport/fileutils.h"

	namespace webrtc {

	void SetISACConfigDefault(ACMTestISACConfig& isacConfig) {
	isacConfig.currentRateBitPerSec = 0;
	isacConfig.currentFrameSizeMsec = 0;
	isacConfig.encodingMode = -1;
	isacConfig.initRateBitPerSec = 0;
	isacConfig.initFrameSizeInMsec = 0;
	isacConfig.enforceFrameSize = false;
	return;
	}

	int16_t SetISAConfig(ACMTestISACConfig& isacConfig, AudioCodingModule* acm,
	int testMode) {

	if ((isacConfig.currentRateBitPerSec != 0)
	\|\| (isacConfig.currentFrameSizeMsec != 0)) {
	auto sendCodec = acm->SendCodec();
	EXPECT_TRUE(sendCodec);
	if (isacConfig.currentRateBitPerSec < 0) {
	// Register iSAC in adaptive (channel-dependent) mode.
	sendCodec->rate = -1;
	EXPECT_EQ(0, acm->RegisterSendCodec(*sendCodec));
	} else {
	if (isacConfig.currentRateBitPerSec != 0) {
	sendCodec->rate = isacConfig.currentRateBitPerSec;
	}
	if (isacConfig.currentFrameSizeMsec != 0) {
	sendCodec->pacsize = isacConfig.currentFrameSizeMsec
	* (sendCodec->plfreq / 1000);
	}
	EXPECT_EQ(0, acm->RegisterSendCodec(*sendCodec));
	}
	}

	return 0;
	}

	ISACTest::ISACTest(int testMode)
	: _acmA(AudioCodingModule::Create()),
	_acmB(AudioCodingModule::Create()),
	_testMode(testMode) {}

	ISACTest::~ISACTest() {}

	void ISACTest::Setup() {
	int codecCntr;
	CodecInst codecParam;

	for (codecCntr = 0; codecCntr < AudioCodingModule::NumberOfCodecs();
	codecCntr++) {
	EXPECT_EQ(0, AudioCodingModule::Codec(codecCntr, &codecParam));
	if (!STR_CASE_CMP(codecParam.plname, "ISAC")
	&& codecParam.plfreq == 16000) {
	memcpy(&_paramISAC16kHz, &codecParam, sizeof(CodecInst));
	_idISAC16kHz = codecCntr;
	}
	if (!STR_CASE_CMP(codecParam.plname, "ISAC")
	&& codecParam.plfreq == 32000) {
	memcpy(&_paramISAC32kHz, &codecParam, sizeof(CodecInst));
	_idISAC32kHz = codecCntr;
	}
	}

	// Register both iSAC-wb & iSAC-swb in both sides as receiver codecs.
	EXPECT_EQ(true, _acmA->RegisterReceiveCodec(_paramISAC16kHz.pltype,
	CodecInstToSdp(_paramISAC16kHz)));
	EXPECT_EQ(true, _acmA->RegisterReceiveCodec(_paramISAC32kHz.pltype,
	CodecInstToSdp(_paramISAC32kHz)));
	EXPECT_EQ(true, _acmB->RegisterReceiveCodec(_paramISAC16kHz.pltype,
	CodecInstToSdp(_paramISAC16kHz)));
	EXPECT_EQ(true, _acmB->RegisterReceiveCodec(_paramISAC32kHz.pltype,
	CodecInstToSdp(_paramISAC32kHz)));

	//--- Set A-to-B channel
	_channel_A2B.reset(new Channel);
	EXPECT_EQ(0, _acmA->RegisterTransportCallback(_channel_A2B.get()));
	_channel_A2B->RegisterReceiverACM(_acmB.get());

	//--- Set B-to-A channel
	_channel_B2A.reset(new Channel);
	EXPECT_EQ(0, _acmB->RegisterTransportCallback(_channel_B2A.get()));
	_channel_B2A->RegisterReceiverACM(_acmA.get());

	file_name_swb_ = webrtc::test::ResourcePath("audio_coding/testfile32kHz",
	"pcm");

	EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));
	EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));

	_inFileA.Open(file_name_swb_, 32000, "rb");
	// Set test length to 500 ms (50 blocks of 10 ms each).
	_inFileA.SetNum10MsBlocksToRead(50);
	// Fast-forward 1 second (100 blocks) since the files start with silence.
	_inFileA.FastForward(100);
	std::string fileNameA = webrtc::test::OutputPath() + "testisac_a.pcm";
	std::string fileNameB = webrtc::test::OutputPath() + "testisac_b.pcm";
	_outFileA.Open(fileNameA, 32000, "wb");
	_outFileB.Open(fileNameB, 32000, "wb");

	while (!_inFileA.EndOfFile()) {
	Run10ms();
	}
	CodecInst receiveCodec;
	EXPECT_EQ(0, _acmA->ReceiveCodec(&receiveCodec));
	EXPECT_EQ(0, _acmB->ReceiveCodec(&receiveCodec));

	_inFileA.Close();
	_outFileA.Close();
	_outFileB.Close();
	}

	void ISACTest::Perform() {
	Setup();

	int16_t testNr = 0;
	ACMTestISACConfig wbISACConfig;
	ACMTestISACConfig swbISACConfig;

	SetISACConfigDefault(wbISACConfig);
	SetISACConfigDefault(swbISACConfig);

	wbISACConfig.currentRateBitPerSec = -1;
	swbISACConfig.currentRateBitPerSec = -1;
	testNr++;
	EncodeDecode(testNr, wbISACConfig, swbISACConfig);

	if (_testMode != 0) {
	SetISACConfigDefault(wbISACConfig);
	SetISACConfigDefault(swbISACConfig);

	wbISACConfig.currentRateBitPerSec = -1;
	swbISACConfig.currentRateBitPerSec = -1;
	wbISACConfig.initRateBitPerSec = 13000;
	wbISACConfig.initFrameSizeInMsec = 60;
	swbISACConfig.initRateBitPerSec = 20000;
	swbISACConfig.initFrameSizeInMsec = 30;
	testNr++;
	EncodeDecode(testNr, wbISACConfig, swbISACConfig);

	SetISACConfigDefault(wbISACConfig);
	SetISACConfigDefault(swbISACConfig);

	wbISACConfig.currentRateBitPerSec = 20000;
	swbISACConfig.currentRateBitPerSec = 48000;
	testNr++;
	EncodeDecode(testNr, wbISACConfig, swbISACConfig);

	wbISACConfig.currentRateBitPerSec = 16000;
	swbISACConfig.currentRateBitPerSec = 30000;
	wbISACConfig.currentFrameSizeMsec = 60;
	testNr++;
	EncodeDecode(testNr, wbISACConfig, swbISACConfig);
	}

	SetISACConfigDefault(wbISACConfig);
	SetISACConfigDefault(swbISACConfig);
	testNr++;
	EncodeDecode(testNr, wbISACConfig, swbISACConfig);

	testNr++;
	if (_testMode == 0) {
	SwitchingSamplingRate(testNr, 4);
	} else {
	SwitchingSamplingRate(testNr, 80);
	}
	}

	void ISACTest::Run10ms() {
	AudioFrame audioFrame;
	EXPECT_GT(_inFileA.Read10MsData(audioFrame), 0);
	EXPECT_GE(_acmA->Add10MsData(audioFrame), 0);
	EXPECT_GE(_acmB->Add10MsData(audioFrame), 0);
	bool muted;
	EXPECT_EQ(0, _acmA->PlayoutData10Ms(32000, &audioFrame, &muted));
	ASSERT_FALSE(muted);
	_outFileA.Write10MsData(audioFrame);
	EXPECT_EQ(0, _acmB->PlayoutData10Ms(32000, &audioFrame, &muted));
	ASSERT_FALSE(muted);
	_outFileB.Write10MsData(audioFrame);
	}

	void ISACTest::EncodeDecode(int testNr, ACMTestISACConfig& wbISACConfig,
	ACMTestISACConfig& swbISACConfig) {
	// Files in Side A and B
	_inFileA.Open(file_name_swb_, 32000, "rb", true);
	_inFileB.Open(file_name_swb_, 32000, "rb", true);

	std::string file_name_out;
	std::stringstream file_stream_a;
	std::stringstream file_stream_b;
	file_stream_a << webrtc::test::OutputPath();
	file_stream_b << webrtc::test::OutputPath();
	file_stream_a << "out_iSACTest_A_" << testNr << ".pcm";
	file_stream_b << "out_iSACTest_B_" << testNr << ".pcm";
	file_name_out = file_stream_a.str();
	_outFileA.Open(file_name_out, 32000, "wb");
	file_name_out = file_stream_b.str();
	_outFileB.Open(file_name_out, 32000, "wb");

	EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC16kHz));
	EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));
	EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC32kHz));
	EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));

	// Side A is sending super-wideband, and side B is sending wideband.
	SetISAConfig(swbISACConfig, _acmA.get(), _testMode);
	SetISAConfig(wbISACConfig, _acmB.get(), _testMode);

	bool adaptiveMode = false;
	if ((swbISACConfig.currentRateBitPerSec == -1)
	\|\| (wbISACConfig.currentRateBitPerSec == -1)) {
	adaptiveMode = true;
	}
	_myTimer.Reset();
	_channel_A2B->ResetStats();
	_channel_B2A->ResetStats();

	char currentTime[500];
	EventTimerWrapper* myEvent = EventTimerWrapper::Create();
	EXPECT_TRUE(myEvent->StartTimer(true, 10));
	while (!(_inFileA.EndOfFile() \|\| _inFileA.Rewinded())) {
	Run10ms();
	_myTimer.Tick10ms();
	_myTimer.CurrentTimeHMS(currentTime);

	if ((adaptiveMode) && (_testMode != 0)) {
	myEvent->Wait(5000);
	EXPECT_TRUE(_acmA->SendCodec());
	EXPECT_TRUE(_acmB->SendCodec());
	}
	}

	if (_testMode != 0) {
	printf("\n\nSide A statistics\n\n");
	_channel_A2B->PrintStats(_paramISAC32kHz);

	printf("\n\nSide B statistics\n\n");
	_channel_B2A->PrintStats(_paramISAC16kHz);
	}

	_channel_A2B->ResetStats();
	_channel_B2A->ResetStats();

	_outFileA.Close();
	_outFileB.Close();
	_inFileA.Close();
	_inFileB.Close();
	}

	void ISACTest::SwitchingSamplingRate(int testNr, int maxSampRateChange) {
	// Files in Side A
	_inFileA.Open(file_name_swb_, 32000, "rb");
	_inFileB.Open(file_name_swb_, 32000, "rb");

	std::string file_name_out;
	std::stringstream file_stream_a;
	std::stringstream file_stream_b;
	file_stream_a << webrtc::test::OutputPath();
	file_stream_b << webrtc::test::OutputPath();
	file_stream_a << "out_iSACTest_A_" << testNr << ".pcm";
	file_stream_b << "out_iSACTest_B_" << testNr << ".pcm";
	file_name_out = file_stream_a.str();
	_outFileA.Open(file_name_out, 32000, "wb");
	file_name_out = file_stream_b.str();
	_outFileB.Open(file_name_out, 32000, "wb");

	// Start with side A sending super-wideband and side B seding wideband.
	// Toggle sending wideband/super-wideband in this test.
	EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));
	EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));

	int numSendCodecChanged = 0;
	_myTimer.Reset();
	char currentTime[50];
	while (numSendCodecChanged < (maxSampRateChange << 1)) {
	Run10ms();
	_myTimer.Tick10ms();
	_myTimer.CurrentTimeHMS(currentTime);
	if (_testMode == 2)
	printf("\r%s", currentTime);
	if (_inFileA.EndOfFile()) {
	if (_inFileA.SamplingFrequency() == 16000) {
	// Switch side A to send super-wideband.
	_inFileA.Close();
	_inFileA.Open(file_name_swb_, 32000, "rb");
	EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC32kHz));
	} else {
	// Switch side A to send wideband.
	_inFileA.Close();
	_inFileA.Open(file_name_swb_, 32000, "rb");
	EXPECT_EQ(0, _acmA->RegisterSendCodec(_paramISAC16kHz));
	}
	numSendCodecChanged++;
	}

	if (_inFileB.EndOfFile()) {
	if (_inFileB.SamplingFrequency() == 16000) {
	// Switch side B to send super-wideband.
	_inFileB.Close();
	_inFileB.Open(file_name_swb_, 32000, "rb");
	EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC32kHz));
	} else {
	// Switch side B to send wideband.
	_inFileB.Close();
	_inFileB.Open(file_name_swb_, 32000, "rb");
	EXPECT_EQ(0, _acmB->RegisterSendCodec(_paramISAC16kHz));
	}
	numSendCodecChanged++;
	}
	}
	_outFileA.Close();
	_outFileB.Close();
	_inFileA.Close();
	_inFileB.Close();
	}

	} // namespace webrtc