static void
create_file (const char * fname, int format)
{ static short buffer [BUFFER_LEN] ;
SndfileHandle file ;
int channels = 2 ;
int srate = 48000 ;
printf ("Creating file named '%s'\n", fname) ;
file = SndfileHandle (fname, SFM_WRITE, format, channels, srate) ;
memset (buffer, 0, sizeof (buffer)) ;
const int size = srate*3;
float sample[size];
float current =0;
for(int i =0; i<size;i++) sample[i] = sin(float(i)/size*M_PI*1500);
file.write (&sample[0], size) ;
puts ("") ;
/*
** The SndfileHandle object will automatically close the file and
** release all allocated memory when the object goes out of scope.
** This is the Resource Acquisition Is Initailization idom.
** See : http://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization
*/
} /* create_file */
void CSignalRecorder::StoreCapturedSamples(SndfileHandle &CaptureWave)
{
ulong capturedSamples = 0;
do
{
capturedSamples = m_CaptureDevice->GetSamples(m_SamplesBuffer->get_Frame(0), m_FrameSize*m_MaxCaptureChannels);
capturedSamples /= m_MaxCaptureChannels;
if(capturedSamples > 0)
{
ulong writtenSamples = 0;
if(m_CaptureDevice->get_InputChannelAmount() > 1)
{
writtenSamples = (ulong)CaptureWave.writef(m_SamplesBuffer->get_Frame(0), capturedSamples);
}
else
{
writtenSamples = (ulong)CaptureWave.write(m_SamplesBuffer->get_Frame(0), capturedSamples);
}
if(writtenSamples < capturedSamples)
{
KODI->Log(LOG_ERROR, "Failed to write to capture wave file!");
Set_State(STATE_INVALID);
}
}
}while(capturedSamples > 0);
}
void AudioManager::testCropping (int sId, int gId) {
Sample cropped = getGroundTruthAround(sId, gId);
SF_INFO sfinfo;
sfinfo.channels = 1;
sfinfo.samplerate = FS;
sfinfo.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
string file = "output/cropped.wav";
cout << "Saving " << file << endl;
SndfileHandle ofile = SndfileHandle(file, SFM_WRITE, SF_FORMAT_WAV | SF_FORMAT_PCM_16, 1, 8000);
ofile.write(cropped.audio, cropped.length);
}
void AudioManager::saveSamples () {
SF_INFO sfinfo;
sfinfo.channels = 1;
sfinfo.samplerate = FS;
sfinfo.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
for (vector<Sample>::iterator it = samples.begin(); it != samples.end(); ++it) {
string file = "output/" + to_string(it->offset) + "-" + it->station + ".wav";
cout << "Saving " << file << endl;
SndfileHandle ofile = SndfileHandle(file, SFM_WRITE, SF_FORMAT_WAV | SF_FORMAT_PCM_16, 1, 8000);
ofile.write(it->audio, it->length);
//sf_write_sync(ofile);
//sf_close(ofile);
}
}