//These methods run on the main thread, they drain audio from the mic and send it across to the other thread for proper processing
//
// Update - Either discard mic samples (if no one is subscribed to mic data) or call DrainMicSamples
// DrainMicSamples - Read as many samples as possible from the mic (using a set of pow2 sized buffers to get as
// much as possible), passes samples to ConsumeMicSamples
// ConsumeMicSamples - Take some number of samples from produced by DrainMicSamples and buffer them up, call SendFrame
// every time some samples are added to the buffer
// SendFrame - Read as many frames as possible from the buffer and send them to the other thread. Also poke the other thread
// to tell it that it has work to do
public void Update()
{
if (!_started)
{
_readHead = Microphone.GetPosition(_micName);
_started = _readHead > 0;
if (!_started)
{
return;
}
}
if (_preprocessing.RequiresInput)
{
//Read samples from clip into mic sample buffer
DrainMicSamples();
}
else
{
//We're not interested in the audio from the mic, so skip the read head to the current mic position and drop all the audio
_readHead = Microphone.GetPosition(_micName);
_rawMicSamples.Reset();
_rawMicFrames.Reset();
_preprocessing.Reset();
if (_microphoneDiagnosticOutput != null)
{
_microphoneDiagnosticOutput.Dispose();
_microphoneDiagnosticOutput = null;
}
}
}
public virtual void StopCapture()
{
Log.AssertAndThrowPossibleBug(_clip != null, "CDDAE69D-44DC-487F-9B69-4703B779400E", "Attempted to stop microphone capture, but it is already stopped");
//Stop diagnostic output
if (_microphoneDiagnosticOutput != null)
{
_microphoneDiagnosticOutput.Dispose();
_microphoneDiagnosticOutput = null;
}
//Stop capture
Microphone.End(_micName);
_format = null;
_clip = null;
_readHead = 0;
_started = false;
_micName = null;
//Clean the buffers
_rawMicSamples.Reset();
_rawMicFrames.Reset();
//Stop watching for device changes
AudioSettings.OnAudioConfigurationChanged -= OnAudioDeviceChanged;
_audioDeviceChanged = false;
}
public virtual void Dispose()
{
_runThread = false;
_threadEvent.Set();
if (_thread.IsStarted)
{
_thread.Join();
}
//ncrunch: no coverage start
if (_diagnosticOutputRecorder != null)
{
_diagnosticOutputRecorder.Dispose();
_diagnosticOutputRecorder = null;
}
//ncrunch: no coverage end
using (var subscriptions = _micSubscriptions.Lock())
while (subscriptions.Value.Count > 0)
{
Unsubscribe(subscriptions.Value[0]);
}
using (var subscriptions = _vadSubscriptions.Lock())
while (subscriptions.Value.Count > 0)
{
Unsubscribe(subscriptions.Value[0]);
}
Log.Debug("Disposed pipeline");
}
private void StopCapture()
{
if (!_subscribed)
{
throw Log.CreatePossibleBugException("Cannot unsubscribe encoder from mic: not subscribed", "8E0EAC83-BF44-4BE3-B132-BFE02AD1FADB");
}
Log.Debug("Unsubscribing encoder from microphone");
_mic.Unsubscribe(this);
_subscribed = false;
_resetRequired = true;
//Disposing the output writers is racy, because the audio thread is trying to write to them at the same time.
//That's fine, because the writer have an internal SpinLock ensuring that doing this is safe
if (_microphoneDiagnosticOutput != null)
{
_microphoneDiagnosticOutput.Dispose();
_microphoneDiagnosticOutput = null;
}
if (_preEncodeDiagnosticOutput != null)
{
_preEncodeDiagnosticOutput.Dispose();
_preEncodeDiagnosticOutput = null;
}
}
public void Reset()
{
_buffer.Reset();
_decoder.Reset();
if (_diagnosticOutput != null)
{
_diagnosticOutput.Dispose();
_diagnosticOutput = null;
}
}
public void Reset()
{
_buffer.Reset();
_decoder.Reset();
using (var l = _options.Lock())
l.Value = new PlaybackOptions(false, 1, ChannelPriority.Default);
using (var l = _channels.Lock())
l.Value.Clear();
if (_diagnosticOutput != null)
{
_diagnosticOutput.Dispose();
_diagnosticOutput = null;
}
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
_audioWriter.Dispose();
_videoWriter.Dispose();
var ffmpegProcess = new Process
{
StartInfo =
{
FileName = "ffmpeg.exe",
Arguments = _ffmpegArgs,
UseShellExecute = false,
CreateNoWindow = true
}
};
ffmpegProcess.Start();
ffmpegProcess.WaitForExit();
File.Delete(tempAudioPath);
File.Delete(tempVideoPath);
}
public void OnAudioFilterRead(float[] data, int channels)
{
//If there is no session, clear filter and early exit
var maybeSession = Session;
if (!maybeSession.HasValue)
{
Array.Clear(data, 0, data.Length);
return;
}
_sessionLock.EnterUpgradeableReadLock();
try
{
//Check if there is no session again, this time protected by a lock
maybeSession = Session;
if (!maybeSession.HasValue)
{
Array.Clear(data, 0, data.Length);
return;
}
//Detect if the session has changed since the last call to this method, if so reset
if (!maybeSession.Value.Context.Equals(_lastPlayedSessionContext))
{
_lastPlayedSessionContext = maybeSession.Value.Context;
ApplyReset();
}
//Calculate the difference between where we should be and where we are (in samples)
var session = maybeSession.Value;
_desync.Update(IdealPlaybackPosition, PlaybackPosition);
//If necessary skip samples to bring us back in sync
int deltaDesync, deltaSamples;
var complete = Skip(session, _desync.DesyncMilliseconds, out deltaSamples, out deltaDesync);
Interlocked.Add(ref _totalSamplesRead, deltaSamples);
_desync.Skip(deltaDesync);
//If the session wasn't completed by the skip, keep playing
if (!complete)
{
int samples;
float arv;
complete = Filter(session, data, channels, _temp, _diagnosticOutput, out arv, out samples, MultiplyBySource);
_arv = arv;
Interlocked.Add(ref _totalSamplesRead, samples);
}
//Clean up now that this session is complete
if (complete)
{
Log.Debug("Finished playback of speech session. id={0}", session.Context.Id);
//Clear the session
_sessionLock.EnterWriteLock();
try
{
Session = null;
}
finally
{
_sessionLock.ExitWriteLock();
}
//Reset the state
ApplyReset();
//Discard the diagnostic recorder if necessary
if (_diagnosticOutput != null)
{
_diagnosticOutput.Dispose();
_diagnosticOutput = null;
}
}
}
finally
{
_sessionLock.ExitUpgradeableReadLock();
}
}
private void Record()
{
try
{
_stopWrite.Reset();
if (!String.IsNullOrEmpty(Micobject.recorder.trigger))
{
string[] tid = Micobject.recorder.trigger.Split(',');
switch (tid[0])
{
case "1":
VolumeLevel vl = MainForm.InstanceReference.GetVolumeLevel(Convert.ToInt32(tid[1]));
if (vl != null && !vl.Recording)
vl.RecordSwitch(true);
break;
case "2":
CameraWindow c = MainForm.InstanceReference.GetCameraWindow(Convert.ToInt32(tid[1]));
if (c != null && !c.Recording)
c.RecordSwitch(true);
break;
}
}
var cw = CameraControl;
//
if (cw != null)
{
if (cw.AbortedAudio)
{
MainForm.LogErrorToFile(Micobject.name +
": paired recording aborted as the camera is already recording");
ForcedRecording = false;
return;
}
}
try
{
if (cw != null)
{
cw.ForcedRecording = ForcedRecording;
cw.StartSaving();
_stopWrite.WaitOne();
}
else
{
#region mp3writer
DateTime date = DateTime.Now;
string filename = String.Format("{0}-{1}-{2}_{3}-{4}-{5}",
date.Year, Helper.ZeroPad(date.Month), Helper.ZeroPad(date.Day),
Helper.ZeroPad(date.Hour), Helper.ZeroPad(date.Minute),
Helper.ZeroPad(date.Second));
AudioFileName = Micobject.id + "_" + filename;
string folder = Dir.Entry + "audio\\" + Micobject.directory + "\\";
if (!Directory.Exists(folder))
Directory.CreateDirectory(folder);
filename = folder + AudioFileName;
_writer = new AudioFileWriter();
try
{
Program.FFMPEGMutex.WaitOne();
_writer.Open(filename + ".mp3", AudioCodec.MP3,
AudioSource.RecordingFormat.BitsPerSample*AudioSource.RecordingFormat.SampleRate*
AudioSource.RecordingFormat.Channels, AudioSource.RecordingFormat.SampleRate,
AudioSource.RecordingFormat.Channels);
}
finally
{
try
{
Program.FFMPEGMutex.ReleaseMutex();
}
catch (ObjectDisposedException)
{
//can happen on shutdown
}
}
double maxlevel = 0;
bool first = true;
DateTime recordingStart = Helper.Now;
try
{
while (!_stopWrite.WaitOne(5))
{
Helper.FrameAction fa;
while (Buffer.TryDequeue(out fa))
{
if (first)
{
recordingStart = fa.TimeStamp;
first = false;
}
if (fa.FrameType == Enums.FrameType.Audio)
{
unsafe
{
fixed (byte* p = fa.Content)
{
_writer.WriteAudio(p, fa.DataLength);
}
}
float d = Levels.Max();
_soundData.Append(String.Format(CultureInfo.InvariantCulture,
"{0:0.000}", d));
_soundData.Append(",");
if (d > maxlevel)
maxlevel = d;
}
fa.Nullify();
}
}
FilesFile ff = _filelist.FirstOrDefault(p => p.Filename.EndsWith(AudioFileName + ".mp3"));
bool newfile = false;
if (ff == null)
{
ff = new FilesFile();
newfile = true;
}
string[] fnpath = (filename + ".mp3").Split('\\');
string fn = fnpath[fnpath.Length - 1];
var fi = new FileInfo(filename + ".mp3");
var dSeconds = Convert.ToInt32((Helper.Now - recordingStart).TotalSeconds);
ff.CreatedDateTicks = DateTime.Now.Ticks;
ff.Filename = fnpath[fnpath.Length - 1];
ff.MaxAlarm = maxlevel;
ff.SizeBytes = fi.Length;
ff.DurationSeconds = dSeconds;
ff.IsTimelapse = false;
ff.IsMergeFile = false;
ff.AlertData = Helper.GetMotionDataPoints(_soundData);
_soundData.Clear();
ff.TriggerLevel = Micobject.detector.minsensitivity;
ff.TriggerLevelMax = Micobject.detector.maxsensitivity;
if (newfile)
{
lock (_lockobject)
{
_filelist.Insert(0, ff);
}
MainForm.MasterFileAdd(new FilePreview(fn, dSeconds, Micobject.name, DateTime.Now.Ticks,
1, Micobject.id, ff.MaxAlarm, false, false));
MainForm.NeedsMediaRefresh = Helper.Now;
}
}
catch (Exception ex)
{
if (ErrorHandler != null)
ErrorHandler(ex.Message);
}
if (_writer != null && _writer.IsOpen)
{
try
{
Program.FFMPEGMutex.WaitOne();
_writer.Dispose();
}
catch (Exception ex)
{
if (ErrorHandler != null)
ErrorHandler(ex.Message);
}
finally
{
try
{
Program.FFMPEGMutex.ReleaseMutex();
}
catch (ObjectDisposedException)
{
//can happen on shutdown
}
}
}
_writer = null;
#endregion
}
UpdateFloorplans(false);
}
catch (Exception ex)
{
if (ErrorHandler != null)
ErrorHandler(ex.Message);
}
if (!String.IsNullOrEmpty(Micobject.recorder.trigger))
{
string[] tid = Micobject.recorder.trigger.Split(',');
switch (tid[0])
{
case "1":
VolumeLevel vl = MainForm.InstanceReference.GetVolumeLevel(Convert.ToInt32(tid[1]));
if (vl != null)
vl.RecordSwitch(false);
break;
case "2":
CameraWindow c = MainForm.InstanceReference.GetCameraWindow(Convert.ToInt32(tid[1]));
if (c != null)
c.RecordSwitch(false);
break;
}
}
if (cw == null)
{
Micobject.newrecordingcount++;
if (Notification != null)
Notification(this, new NotificationType("NewRecording", Micobject.name, ""));
}
}
catch (Exception ex)
{
MainForm.LogExceptionToFile(ex);
}
}
private void Record()
{
_stopWrite = false;
DateTime recordingStart = DateTime.MinValue;
if (!String.IsNullOrEmpty(Micobject.recorder.trigger) && TopLevelControl != null)
{
string[] tid = Micobject.recorder.trigger.Split(',');
switch (tid[0])
{
case "1":
VolumeLevel vl = ((MainForm)TopLevelControl).GetVolumeLevel(Convert.ToInt32(tid[1]));
if (vl != null)
vl.RecordSwitch(true);
break;
case "2":
CameraWindow cw = ((MainForm)TopLevelControl).GetCameraWindow(Convert.ToInt32(tid[1]));
if (cw != null)
cw.RecordSwitch(true);
break;
}
}
try
{
WriterBuffer = new QueueWithEvents<AudioAction>();
WriterBuffer.Changed += WriterBufferChanged;
_pairedRecording = false;
if (CameraControl!=null && CameraControl.Camobject.settings.active)
{
_pairedRecording = true;
CameraControl.StartSaving();
CameraControl.ForcedRecording = ForcedRecording;
while (!_stopWrite)
{
_newRecordingFrame.WaitOne(200);
}
}
else
{
#region mp3writer
DateTime date = DateTime.Now;
string filename = String.Format("{0}-{1}-{2}_{3}-{4}-{5}",
date.Year, Helper.ZeroPad(date.Month), Helper.ZeroPad(date.Day),
Helper.ZeroPad(date.Hour), Helper.ZeroPad(date.Minute),
Helper.ZeroPad(date.Second));
AudioFileName = Micobject.id + "_" + filename;
filename = MainForm.Conf.MediaDirectory + "audio\\" + Micobject.directory + "\\";
filename += AudioFileName;
Program.WriterMutex.WaitOne();
try
{
_writer = new AudioFileWriter();
_writer.Open(filename + ".mp3", AudioCodec.MP3, AudioSource.RecordingFormat.BitsPerSample * AudioSource.RecordingFormat.SampleRate * AudioSource.RecordingFormat.Channels, AudioSource.RecordingFormat.SampleRate, AudioSource.RecordingFormat.Channels);
}
catch (Exception ex)
{
Log.Error("",ex);//MainForm.LogExceptionToFile(ex);
}
finally
{
Program.WriterMutex.ReleaseMutex();
}
double maxlevel = 0;
foreach (AudioAction aa in AudioBuffer.OrderBy(p=>p.TimeStamp))
{
if (recordingStart == DateTime.MinValue)
{
recordingStart = aa.TimeStamp;
}
unsafe
{
fixed (byte* p = aa.Decoded)
{
_writer.WriteAudio(p, aa.Decoded.Length);
}
}
_soundData.Append(String.Format(CultureInfo.InvariantCulture,
"{0:0.000}", aa.SoundLevel));
_soundData.Append(",");
if (aa.SoundLevel > maxlevel)
maxlevel = aa.SoundLevel;
}
AudioBuffer.Clear();
if (recordingStart == DateTime.MinValue)
recordingStart = DateTime.Now;
try
{
while (!_stopWrite)
{
while (WriterBuffer.Count > 0)
{
AudioAction b;
lock (_obj)
{
b = WriterBuffer.Dequeue();
}
unsafe
{
fixed (byte* p = b.Decoded)
{
_writer.WriteAudio(p, b.Decoded.Length);
}
}
float d = Levels.Max();
_soundData.Append(String.Format(CultureInfo.InvariantCulture,
"{0:0.000}", d));
_soundData.Append(",");
if (d > maxlevel)
maxlevel = d;
}
_newRecordingFrame.WaitOne(200);
}
FilesFile ff = FileList.FirstOrDefault(p => p.Filename.EndsWith(AudioFileName + ".mp3"));
bool newfile = false;
if (ff == null)
{
ff = new FilesFile();
newfile = true;
}
string[] fnpath = (filename + ".mp3").Split('\\');
string fn = fnpath[fnpath.Length - 1];
var fi = new FileInfo(filename + ".mp3");
var dSeconds = Convert.ToInt32((DateTime.Now - recordingStart).TotalSeconds);
ff.CreatedDateTicks = DateTime.Now.Ticks;
ff.Filename = fnpath[fnpath.Length - 1];
ff.MaxAlarm = maxlevel;
ff.SizeBytes = fi.Length;
ff.DurationSeconds = dSeconds;
ff.IsTimelapse = false;
ff.AlertData = Helper.GetMotionDataPoints(_soundData);
_soundData.Clear();
ff.TriggerLevel = Micobject.detector.sensitivity;
if (newfile)
{
FileList.Insert(0, ff);
if (MainForm.MasterFileList.Count(p => p.Filename.EndsWith(fn)) == 0)
{
MainForm.MasterFileList.Add(new FilePreview(fn, dSeconds, Micobject.name, DateTime.Now.Ticks, 1,Micobject.id, ff.MaxAlarm));
}
}
}
catch (Exception ex)
{
Log.Error("",ex);//MainForm.LogExceptionToFile(ex);
}
Program.WriterMutex.WaitOne();
try
{
_writer.Close();
_writer.Dispose();
}
catch (Exception ex)
{
Log.Error("",ex);//MainForm.LogExceptionToFile(ex);
}
finally
{
Program.WriterMutex.ReleaseMutex();
}
_writer = null;
#endregion
}
_stopWrite = false;
WriterBuffer = null;
_recordingTime = 0;
UpdateFloorplans(false);
}
catch (Exception ex)
{
Log.Error("",ex);//MainForm.LogExceptionToFile(ex);
}
if (!String.IsNullOrEmpty(Micobject.recorder.trigger) && TopLevelControl != null)
{
string[] tid = Micobject.recorder.trigger.Split(',');
switch (tid[0])
{
case "1":
VolumeLevel vl = ((MainForm)TopLevelControl).GetVolumeLevel(Convert.ToInt32(tid[1]));
if (vl != null)
vl.RecordSwitch(false);
break;
case "2":
CameraWindow cw = ((MainForm)TopLevelControl).GetCameraWindow(Convert.ToInt32(tid[1]));
if (cw != null)
cw.RecordSwitch(false);
break;
}
}
if (!_pairedRecording)
{
Micobject.newrecordingcount++;
if (Notification != null)
Notification(this, new NotificationType("NewRecording", Micobject.name, ""));
}
}
public void OnAudioFilterRead([NotNull] float[] data, int channels)
{
//If there is no session, clear filter and early exit
var maybeSession = Session;
if (!maybeSession.HasValue)
{
Array.Clear(data, 0, data.Length);
return;
}
_sessionLock.EnterUpgradeableReadLock();
try
{
//Check if there is no session again, this time protected by a lock
maybeSession = Session;
if (!maybeSession.HasValue)
{
Array.Clear(data, 0, data.Length);
return;
}
//Detect if the session has changed since the last call to this method, if so reset
var session = maybeSession.Value;
if (!session.Context.Equals(_lastPlayedSessionContext))
{
_lastPlayedSessionContext = maybeSession.Value.Context;
ApplyReset();
}
// Read data from pipeline
float arv;
var complete = Filter(session, data, channels, _temp, _diagnosticOutput, out arv);
_arv = arv;
//Clean up now that this session is complete
if (complete)
{
Log.Debug("Finished playback of speech session. id={0}. player={1}", session.Context.Id, session.Context.PlayerName);
//Clear the session
_sessionLock.EnterWriteLock();
try
{
Session = null;
}
finally
{
_sessionLock.ExitWriteLock();
}
//Reset the state
ApplyReset();
//Discard the diagnostic recorder if necessary
if (_diagnosticOutput != null)
{
_diagnosticOutput.Dispose();
_diagnosticOutput = null;
}
}
}
finally
{
_sessionLock.ExitUpgradeableReadLock();
}
}
public void Dispose()
{
_audioWriter?.Dispose();
}
