// Handle messages for this resource.
UtlBoolean MprRecorder::handleSetup(int file, int timeMS, int silenceLength, OsProtectedEvent* event)
{
int iMsPerFrame = (1000 * getSamplesPerFrame()) / getSamplesPerSec();
if (isEnabled()) {
OsSysLog::add(FAC_MP, PRI_DEBUG, "MprRecorder::handleSetup"
" -- attempt to setup while enabled!!\n");
return TRUE;
}
if (timeMS > 0) {
mFramesToRecord = timeMS / iMsPerFrame;
} else {
mFramesToRecord = 2000000000;
}
if (silenceLength > 0) {
mSilenceLength = 1000 * silenceLength / iMsPerFrame;
} else {
mSilenceLength = 5000 / iMsPerFrame; /*5 seconds */
}
unsigned long prevValue = MpBuf_setMVE(MIN_SPEECH_ENERGY_THRESHOLD); // any energy lower than this will be regarded as silence
OsSysLog::add(FAC_MP, PRI_INFO, "MprRecorder::handleSetup, set MinVoiceEnergy to %d, was %lu\n", MIN_SPEECH_ENERGY_THRESHOLD, prevValue);
{
OsLock lock(mMutex);
mFileDescriptor = file;
mpEvent = event;
}
mStatus = RECORD_IDLE;
OsSysLog::add(FAC_MP, PRI_DEBUG, "MprRecorder::handleSetup(%d, %d, 0x%p)... #frames=%d\n",
file, timeMS, event, mFramesToRecord);
return TRUE;
}
void testToneAuthenticity()
{
MprToneGen* pToneGen = NULL;
OsStatus res;
int framesToProcess = 3;
// Create the Goertzel DTMF detector -- sample rate and goertzel_n doesn't
// really matter here, since we'll be resetting it in the loop.
// But to illustrate, here is what should be used for 8khz
MpDtmfDetector dtmfDetector(8000, framesToProcess*80);
size_t i;
for(i = 0; i < sNumRates; i++)
{
//printf("Testing frequency authenticity at %d Hz\n", sSampleRates[i]);
// For this test, we want to modify the sample rate and samples per frame
// so we need to de-inititialize what has already been initialized for us
// by cppunit, or by a previous loop.
tearDown();
// Set the sample rates
setSamplesPerSec(sSampleRates[i]);
setSamplesPerFrame(sSampleRates[i]/100);
dtmfDetector.setSamplesPerSec(sSampleRates[i]);
dtmfDetector.setNumProcessSamples(framesToProcess*getSamplesPerFrame());
setUp();
pToneGen = new MprToneGen("MprToneGen", "");
CPPUNIT_ASSERT(pToneGen != NULL);
// This sets up to have some input to our resource, and something to collect
// output at the end. In case of tone gen, the input doesn't matter,
// as it only uses the input when it is in a disabled state (passing
// the input directly to output - no changes).
setupFramework(pToneGen);
// pToneGen enabled, there are buffers on the input 0
CPPUNIT_ASSERT(mpSourceResource->enable());
CPPUNIT_ASSERT(pToneGen->enable());
// Tell our MprToneGen to generate a '4' DTMF tone playing.
MprToneGen::startTone("MprToneGen", *(mpFlowGraph->getMsgQ()), '4');
UtlBoolean dtmfDetected = FALSE;
int j;
for(j = 0; j < framesToProcess; j++)
{
// Process a frame.
res = mpFlowGraph->processNextFrame();
CPPUNIT_ASSERT(res == OS_SUCCESS);
// Now analyze the newly processed output.
// A new buffer should be generated.
CPPUNIT_ASSERT(mpSourceResource->mLastDoProcessArgs.outBufs[0] !=
mpSinkResource->mLastDoProcessArgs.inBufs[0]);
MpAudioBufPtr paBuf = mpSinkResource->mLastDoProcessArgs.inBufs[0];
CPPUNIT_ASSERT(paBuf.isValid());
// SANITY CHECK: Make sure that the number of samples in the
// tone gen output frame is equal to the samples per frame that
// we set during this run.
CPPUNIT_ASSERT_EQUAL(getSamplesPerFrame(), paBuf->getSamplesNumber());
UtlBoolean dtmfDetected = FALSE;
// Now grab audio samples and run them through the dtmf detector.
unsigned k;
for(k = 0; k < paBuf->getSamplesNumber(); k++)
{
const MpAudioSample* pSamples = paBuf->getSamplesPtr();
dtmfDetected = dtmfDetector.processSample(pSamples[k]);
// If we are at the last sample we will process, then, based on how
// we configured the dtmf detector, a tone should have been detected.
if( k == paBuf->getSamplesNumber()-1 && j == framesToProcess-1)
{
CPPUNIT_ASSERT_EQUAL(TRUE, dtmfDetected);
}
else
{
CPPUNIT_ASSERT_EQUAL(FALSE, dtmfDetected);
}
}
// Free up buffers..
paBuf.release();
}
// Now for the real test that we were building up for --
// the DTMF detector should have detected a '4' tone.
// If it didn't then something went wrong -- one thing that could
// have gone wrong in that case, is that the generation was assuming
// a different sample rate than I.
char detectedDTMF = dtmfDetector.getLastDetectedDTMF();
CPPUNIT_ASSERT_EQUAL('4', detectedDTMF);
// Stop flowgraph
haltFramework();
// No need to delete tone gen, as haltFramework deletes all resources
// in the flowgraph.
}
}
/**
* @brief Test MprFromFile file or buffer playing at a given samples per
* frame and sample rate.
*
* How flowgraph is set up:
* * A test input resource, connected to an MprFromFile resource,
* connected to test output resource.
*
* This test does the following:
* * If /p source is /p MpfftFile:
* * MprFromFile loads and plays a very short audio file with DTMF digit
* '5' recorded at 48kHz using playFile
* * processes a few frames of this data,
* for each frame of data, it passes this on to a goertzel dtmf detector
* * once a few frames are gathered, a result is received from the DTMF
* detector. This then is checked to make sure it detected '5'.
* * If /p source is /p MpfftBuffer:
* * MprFromFile plays a very short audio clip with DTMF digit '5' recorded
* at 48kHz using playBuffer
* * The rest is the same as described in #1.
*
*/
void testPlayToneDetectHelper(TestAudioSource source,
unsigned sampleRate, unsigned samplesPerFrame)
{
OsStatus res = OS_SUCCESS;
int framesToProcess = 3;
UtlString ffResName = "MprFromFile";
MprFromFile* pFromFile = new MprFromFile(ffResName);
CPPUNIT_ASSERT(pFromFile != NULL);
// Create the Goertzel DTMF detector with current sample rate and samples
// per frame figured in.
MpDtmfDetector dtmfDetector(sampleRate, framesToProcess*samplesPerFrame);
setupFramework(pFromFile);
if(source == MpfftFile)
{
// Specify to play the dtmf '5' file.
CPPUNIT_ASSERT_EQUAL(
OS_SUCCESS, MprFromFile::playFile(ffResName, *mpFlowGraph->getMsgQ(),
mpFlowGraph->getSamplesPerSec(),
DTMF5_FN, FALSE));
}
else
{
// Specify to play the dtmf '5' buffer.
CPPUNIT_ASSERT_EQUAL(
OS_SUCCESS, MprFromFile::playBuffer(ffResName, *mpFlowGraph->getMsgQ(),
(const char*)dtmf5_48khz_16b_signed,
dtmf5_48khz_16b_signed_in_bytes,
48000, mpFlowGraph->getSamplesPerSec(),
0, FALSE, NULL));
}
// pMixer enabled, there are buffers on the input 0
CPPUNIT_ASSERT(mpSourceResource->enable());
CPPUNIT_ASSERT(pFromFile->enable());
int j;
for(j = 0; j < framesToProcess; j++)
{
// Process a frame.
res = mpFlowGraph->processNextFrame();
CPPUNIT_ASSERT(res == OS_SUCCESS);
// Now analyze the newly processed output.
// A new buffer should be generated.
CPPUNIT_ASSERT(mpSourceResource->mLastDoProcessArgs.outBufs[0] !=
mpSinkResource->mLastDoProcessArgs.inBufs[0]);
MpAudioBufPtr paBuf = mpSinkResource->mLastDoProcessArgs.inBufs[0];
CPPUNIT_ASSERT(paBuf.isValid());
// Make sure that the number of samples in the from file output frame
// is equal to the samples per frame that we set during this run.
CPPUNIT_ASSERT_EQUAL(getSamplesPerFrame(), paBuf->getSamplesNumber());
UtlBoolean dtmfDetected = FALSE;
// Now grab audio samples and run them through the dtmf detector.
unsigned k;
for(k = 0; k < paBuf->getSamplesNumber(); k++)
{
const MpAudioSample* pSamples = paBuf->getSamplesPtr();
dtmfDetected = dtmfDetector.processSample(pSamples[k]);
// If we are at the last sample we will process, then, based on how
// we configured the dtmf detector, a tone should have been detected.
if( k == paBuf->getSamplesNumber()-1 && j == framesToProcess-1)
{
CPPUNIT_ASSERT_EQUAL(TRUE, dtmfDetected);
}
else
{
CPPUNIT_ASSERT_EQUAL(FALSE, dtmfDetected);
}
}
// Free up buffers..
paBuf.release();
}
// Now for the real test that we were building up for --
// the DTMF detector should have detected a '5' tone.
// If it didn't then something went wrong -- one thing that could
// have gone wrong in that case, is that the generation was assuming
// a different sample rate than the detector, thus indicating a bug in
// wideband support in FromFile.
char detectedDTMF = dtmfDetector.getLastDetectedDTMF();
CPPUNIT_ASSERT_EQUAL((int)'5', (int)detectedDTMF);
// Stop flowgraph
haltFramework();
}