Chris@476: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@476: 
Chris@476: /*
Chris@476:     Sonic Visualiser
Chris@476:     An audio file viewer and annotation editor.
Chris@476:     Centre for Digital Music, Queen Mary, University of London.
Chris@476:     
Chris@476:     This program is free software; you can redistribute it and/or
Chris@476:     modify it under the terms of the GNU General Public License as
Chris@476:     published by the Free Software Foundation; either version 2 of the
Chris@476:     License, or (at your option) any later version.  See the file
Chris@476:     COPYING included with this distribution for more information.
Chris@476: */
Chris@476: 
Chris@476: #include "AudioRecordTarget.h"
Chris@476: 
Chris@476: #include "base/ViewManagerBase.h"
Chris@476: #include "base/TempDirectory.h"
Chris@476: 
Chris@477: #include "data/model/WritableWaveFileModel.h"
Chris@476: 
Chris@476: #include <QDir>
Chris@476: 
Chris@476: AudioRecordTarget::AudioRecordTarget(ViewManagerBase *manager,
Chris@476: 				     QString clientName) :
Chris@476:     m_viewManager(manager),
Chris@476:     m_clientName(clientName.toUtf8().data()),
Chris@476:     m_recording(false),
Chris@476:     m_recordSampleRate(44100),
Chris@485:     m_frameCount(0),
Chris@477:     m_model(0)
Chris@476: {
Chris@476: }
Chris@476: 
Chris@476: AudioRecordTarget::~AudioRecordTarget()
Chris@476: {
Chris@476:     QMutexLocker locker(&m_mutex);
Chris@476: }
Chris@476: 
Chris@476: void
Chris@491: AudioRecordTarget::setSystemRecordBlockSize(int)
Chris@476: {
Chris@476: }
Chris@476: 
Chris@476: void
Chris@476: AudioRecordTarget::setSystemRecordSampleRate(int n)
Chris@476: {
Chris@476:     m_recordSampleRate = n;
Chris@476: }
Chris@476: 
Chris@476: void
Chris@491: AudioRecordTarget::setSystemRecordLatency(int)
Chris@476: {
Chris@476: }
Chris@476: 
Chris@476: void
Chris@476: AudioRecordTarget::putSamples(int nframes, float **samples)
Chris@476: {
Chris@485:     bool secChanged = false;
Chris@485:     sv_frame_t frameToEmit = 0;
Chris@485: 
Chris@485:     {
Chris@485:         QMutexLocker locker(&m_mutex); //!!! bad here
Chris@485:         if (!m_recording) return;
Chris@485: 
Chris@485:         m_model->addSamples(samples, nframes);
Chris@485: 
Chris@485:         sv_frame_t priorFrameCount = m_frameCount;
Chris@485:         m_frameCount += nframes;
Chris@485: 
Chris@485:         RealTime priorRT = RealTime::frame2RealTime
Chris@485:             (priorFrameCount, m_recordSampleRate);
Chris@485:         RealTime postRT = RealTime::frame2RealTime
Chris@485:             (m_frameCount, m_recordSampleRate);
Chris@485: 
Chris@485:         secChanged = (postRT.sec > priorRT.sec);
Chris@485:         if (secChanged) frameToEmit = m_frameCount;
Chris@485:     }
Chris@485: 
Chris@485:     if (secChanged) {
Chris@485:         emit recordDurationChanged(frameToEmit, m_recordSampleRate);
Chris@485:     }
Chris@476: }
Chris@476: 
Chris@476: void
Chris@491: AudioRecordTarget::setInputLevels(float, float)
Chris@476: {
Chris@476: }
Chris@476: 
Chris@477: void
Chris@477: AudioRecordTarget::modelAboutToBeDeleted()
Chris@477: {
Chris@477:     QMutexLocker locker(&m_mutex);
Chris@477:     if (sender() == m_model) {
Chris@477:         m_model = 0;
Chris@477:         m_recording = false;
Chris@477:     }
Chris@477: }
Chris@477: 
Chris@483: QString
Chris@483: AudioRecordTarget::getRecordFolder()
Chris@483: {
Chris@483:     QDir parent(TempDirectory::getInstance()->getContainingPath());
Chris@483:     QString subdirname = "recorded"; //!!! tr?
Chris@483:     if (!parent.mkpath(subdirname)) {
Chris@483:         cerr << "ERROR: AudioRecordTarget::getRecordFolder: Failed to create recorded dir in \"" << parent.canonicalPath() << "\"" << endl;
Chris@483:         return "";
Chris@483:     } else {
Chris@483:         return parent.filePath(subdirname);
Chris@483:     }
Chris@483: }
Chris@483: 
Chris@477: WritableWaveFileModel *
Chris@476: AudioRecordTarget::startRecording()
Chris@476: {
Chris@477:     {
Chris@476:     QMutexLocker locker(&m_mutex);
Chris@476:     if (m_recording) {
Chris@476:         cerr << "WARNING: AudioRecordTarget::startRecording: We are already recording" << endl;
Chris@477:         return 0;
Chris@476:     }
Chris@476: 
Chris@477:     m_model = 0;
Chris@485:     m_frameCount = 0;
Chris@477: 
Chris@483:     QString folder = getRecordFolder();
Chris@483:     if (folder == "") return 0;
Chris@483:     QDir recordedDir(folder);
Chris@476: 
Chris@480:     QDateTime now = QDateTime::currentDateTime();
Chris@476: 
Chris@480:     // Don't use QDateTime::toString(Qt::ISODate) as the ":" character
Chris@480:     // isn't permitted in filenames on Windows
Chris@480:     QString filename = QString("recorded-%1.wav")
Chris@480:         .arg(now.toString("yyyyMMdd-HHmmss-zzz"));
Chris@476: 
Chris@476:     m_audioFileName = recordedDir.filePath(filename);
Chris@476: 
Chris@477:     m_model = new WritableWaveFileModel(m_recordSampleRate, 2, m_audioFileName);
Chris@477: 
Chris@477:     if (!m_model->isOK()) {
Chris@477:         cerr << "ERROR: AudioRecordTarget::startRecording: Recording failed"
Chris@477:              << endl;
Chris@476:         //!!! and throw?
Chris@477:         delete m_model;
Chris@477:         m_model = 0;
Chris@477:         return 0;
Chris@476:     }
Chris@476: 
Chris@476:     m_recording = true;
Chris@477:     }
Chris@477: 
Chris@477:     emit recordStatusChanged(true);
Chris@477:     return m_model;
Chris@476: }
Chris@476: 
Chris@476: void
Chris@476: AudioRecordTarget::stopRecording()
Chris@476: {
Chris@477:     {
Chris@476:     QMutexLocker locker(&m_mutex);
Chris@476:     if (!m_recording) {
Chris@476:         cerr << "WARNING: AudioRecordTarget::startRecording: Not recording" << endl;
Chris@476:         return;
Chris@476:     }
Chris@476: 
Chris@477:     m_model->setCompletion(100);
Chris@477:     m_model = 0;
Chris@476:     m_recording = false;
Chris@477:     }
Chris@477: 
Chris@477:     emit recordStatusChanged(false);
Chris@476: }
Chris@476: 
Chris@476: