changeset 486:3dbc964f5907 recording

Add status bar "Recording" message and timer while recording

--- a/audio/AudioRecordTarget.cpp	Tue Sep 15 16:34:08 2015 +0100
+++ b/audio/AudioRecordTarget.cpp	Wed Sep 16 12:04:26 2015 +0100
@@ -27,6 +27,7 @@
     m_clientName(clientName.toUtf8().data()),
     m_recording(false),
     m_recordSampleRate(44100),
+    m_frameCount(0),
     m_model(0)
 {
 }
@@ -55,9 +56,30 @@
 void
 AudioRecordTarget::putSamples(int nframes, float **samples)
 {
-    QMutexLocker locker(&m_mutex); //!!! bad here
-    if (!m_recording) return;
-    m_model->addSamples(samples, nframes);
+    bool secChanged = false;
+    sv_frame_t frameToEmit = 0;
+
+    {
+        QMutexLocker locker(&m_mutex); //!!! bad here
+        if (!m_recording) return;
+
+        m_model->addSamples(samples, nframes);
+
+        sv_frame_t priorFrameCount = m_frameCount;
+        m_frameCount += nframes;
+
+        RealTime priorRT = RealTime::frame2RealTime
+            (priorFrameCount, m_recordSampleRate);
+        RealTime postRT = RealTime::frame2RealTime
+            (m_frameCount, m_recordSampleRate);
+
+        secChanged = (postRT.sec > priorRT.sec);
+        if (secChanged) frameToEmit = m_frameCount;
+    }
+
+    if (secChanged) {
+        emit recordDurationChanged(frameToEmit, m_recordSampleRate);
+    }
 }
 
 void
@@ -99,6 +121,7 @@
     }
 
     m_model = 0;
+    m_frameCount = 0;
 
     QString folder = getRecordFolder();
     if (folder == "") return 0;

--- a/audio/AudioRecordTarget.h	Tue Sep 15 16:34:08 2015 +0100
+++ b/audio/AudioRecordTarget.h	Wed Sep 16 12:04:26 2015 +0100
@@ -59,6 +59,7 @@
 
 signals:
     void recordStatusChanged(bool recording);
+    void recordDurationChanged(sv_frame_t, sv_samplerate_t); // emitted occasionally
 
 protected slots:
     void modelAboutToBeDeleted();
@@ -68,6 +69,7 @@
     std::string m_clientName;
     bool m_recording;
     sv_samplerate_t m_recordSampleRate;
+    sv_frame_t m_frameCount;
     QString m_audioFileName;
     WritableWaveFileModel *m_model;
     QMutex m_mutex;

--- a/framework/MainWindowBase.cpp	Tue Sep 15 16:34:08 2015 +0100
+++ b/framework/MainWindowBase.cpp	Wed Sep 16 12:04:26 2015 +0100
@@ -233,6 +233,8 @@
     if (m_soundOptions & WithAudioInput) {
         m_recordTarget = new AudioRecordTarget(m_viewManager,
                                                QApplication::applicationName());
+        connect(m_recordTarget, SIGNAL(recordDurationChanged(sv_frame_t, sv_samplerate_t)),
+                this, SLOT(recordDurationChanged(sv_frame_t, sv_samplerate_t)));
     }
 
     connect(m_playSource, SIGNAL(sampleRateMismatch(sv_samplerate_t, sv_samplerate_t, bool)),
@@ -3359,6 +3361,17 @@
 }
 
 void
+MainWindowBase::recordDurationChanged(sv_frame_t frame, sv_samplerate_t rate)
+{
+    RealTime duration = RealTime::frame2RealTime(frame, rate);
+    QString durStr = duration.toSecText().c_str();
+    
+    m_myStatusMessage = tr("Recording: %1").arg(durStr);
+
+    getStatusLabel()->setText(m_myStatusMessage);
+}
+
+void
 MainWindowBase::globalCentreFrameChanged(sv_frame_t )
 {
     if ((m_playSource && m_playSource->isPlaying()) || !getMainModel()) return;

--- a/framework/MainWindowBase.h	Tue Sep 15 16:34:08 2015 +0100
+++ b/framework/MainWindowBase.h	Wed Sep 16 12:04:26 2015 +0100
@@ -247,6 +247,7 @@
     virtual void viewCentreFrameChanged(View *, sv_frame_t);
     virtual void viewZoomLevelChanged(View *, int, bool);
     virtual void outputLevelsChanged(float, float) = 0;
+    virtual void recordDurationChanged(sv_frame_t, sv_samplerate_t);
 
     virtual void currentPaneChanged(Pane *);
     virtual void currentLayerChanged(Pane *, Layer *);