public void Unload()
{
Status = PointCloudPlayerStatus.NotLoaded;
Reset();
}
private void PlayFrames()
{
if (Status != PointCloudPlayerStatus.Playing)
{
return;
}
if (CurrentFrameIndex >= MaxFrameIndex)
{
Status = PointCloudPlayerStatus.Stopped;
Seek(0);
_soundPlayer.Stop();
OnPlaybackEnded();
}
var timeOffset = DateTime.Now - _playbackStartUTC;
var targetPlayerTime = MinTimeUTC + timeOffset;
MotionFrame playFrame = null;
int lastFrameIndex = CurrentFrameIndex;
lock (_bufferedFrames)
{
while (_bufferedFrames.Count > 0)
{
var frame = _bufferedFrames.OrderBy(f => f.Id).First();
if (frame.TimeUTC <= targetPlayerTime)
{
playFrame = frame;
_bufferedFrames.Remove(frame);
CurrentFrameIndex++;
}
else
{
break;
}
}
}
if (CurrentFrameIndex - lastFrameIndex > 1)
{
Trace.WriteLine("Skipped a frame from " + lastFrameIndex + " to " + CurrentFrameIndex);
}
if (playFrame != null)
{
CurrentTimeUTC = playFrame.TimeUTC;
var offsetMS = (playFrame.TimeUTC - targetPlayerTime).TotalMilliseconds;
Debug.WriteLine("Playing frame " + CurrentFrameIndex + " id: " + playFrame.Id + " time offset: " + offsetMS.ToString("F4"));
//_soundPlayer.Stop();
if (Math.Abs(offsetMS) > 100)
{
var span = CurrentTimeUTC - MinTimeUTC;
if (CurrentFrameIndex % 30 == 0)
Trace.WriteLine("Reseeking audio to " + span.ToString());
_soundPlayer.Seek(span);
}
//_soundPlayer.Play();
OnMotionFrameAvailable(playFrame);
}
}
public void Play()
{
if (Status == PointCloudPlayerStatus.NotLoaded)
return;
if (Status != PointCloudPlayerStatus.Playing)
{
var playOffset = CurrentTimeUTC - MinTimeUTC;
_playbackStartUTC = DateTime.Now - playOffset;
_soundPlayer.Seek(playOffset);
}
Status = PointCloudPlayerStatus.Playing;
_soundPlayer.Play();
}
public void Stop()
{
if (Status == PointCloudPlayerStatus.NotLoaded)
return;
if (Status == PointCloudPlayerStatus.Playing)
{
Status = PointCloudPlayerStatus.Stopped;
}
_soundPlayer.Stop();
}
public void Load(string filename)
{
Reset();
if (!File.Exists(filename))
{
Unload();
return;
}
lock (_zipFileLock)
{
if (_zipFile != null)
{
_zipFile.Dispose();
_zipFile = null;
}
_zipFile = new ZipFile(filename);
if (!_zipFile.EntryFileNames.Contains(descriptionFilename))
{
Unload();
return;
}
var frameFiles = _zipFile.EntryFileNames.Where(s => s.Substring(s.Length - 3, 3) == "mfx");
_filesToLoad = frameFiles.OrderBy(f => f).ToList();
if (_filesToLoad.Count == 0)
{
Unload();
return;
}
if (_zipFile.EntryFileNames.Contains(audioFilename))
{
if (_audioStream != null)
{
_audioStream.Dispose();
_audioStream = null;
}
_audioStream = new MemoryStream();
_zipFile[audioFilename].Extract(_audioStream);
_audioStream.Position = 0;
_soundPlayer.LoadWavStream(_audioStream);
}
using (var settingsStream = new MemoryStream())
{
_zipFile[descriptionFilename].Extract(settingsStream);
settingsStream.Position = 0;
var description = PointCloudStreamDescription.Load(settingsStream);
MinTimeUTC = description.RecordingStartDateTimeUTC;
CurrentTimeUTC = MinTimeUTC;
MaxTimeUTC = description.RecordingStopDateTimeUTC;
int count = description.FrameCount;
var span = MaxTimeUTC - MinTimeUTC;
if (count > 0 && span.TotalSeconds > 0)
{
FileFPS = count / span.TotalSeconds;
}
}
}
Status = PointCloudPlayerStatus.Stopped;
Seek(0);
}
private void PlayFrames()
{
if (Status != PointCloudPlayerStatus.Playing)
{
return;
}
if (CurrentFrameIndex >= MaxFrameIndex)
{
Status = PointCloudPlayerStatus.Stopped;
Seek(0);
_soundPlayer.Stop();
}
var currentTime = DateTime.Now;
var timeOffset = currentTime - _playbackStartUTC;
_soundPlayer.Seek(timeOffset);
var targetPlayerTime = MinTimeUTC + timeOffset;
MotionFrame playFrame = null;
lock (_bufferedFrames)
{
while (_bufferedFrames.Count > 0)
{
var frame = _bufferedFrames.Peek();
if (frame.TimeUTC <= targetPlayerTime)
{
playFrame = _bufferedFrames.Dequeue();
CurrentFrameIndex++;
}
else
{
break;
}
}
if (_bufferedFrames.Count == 0)
{
Trace.WriteLine("empty buffer");
}
}
if (playFrame != null)
{
CurrentTimeUTC = playFrame.TimeUTC;
var offsetMS = (playFrame.TimeUTC - targetPlayerTime).TotalMilliseconds;
Trace.WriteLine("Playing frame " + CurrentFrameIndex + " id: " + playFrame.Id + " time offset: " + offsetMS.ToString("F4"));
OnMotionFrameAvailable(playFrame);
}
}
public void Stop()
{
Status = PointCloudPlayerStatus.Stopped;
_soundPlayer.Stop();
}
public void Play()
{
if (Status != PointCloudPlayerStatus.Playing && CurrentFrameIndex == 0)
{
_playbackStartUTC = DateTime.Now;
}
Status = PointCloudPlayerStatus.Playing;
_soundPlayer.Play();
}
public void Load(string directory, string frameMask, string audioFilename)
{
Reset();
if (!Directory.Exists("Recording/"))
{
Directory.CreateDirectory("Recording/");
}
_soundPlayer.Load(audioFilename);
IEnumerable<string> files = Directory.EnumerateFiles("Recording/", "frame*.mfx");
_filesToLoad = new List<string>(files.OrderBy(f => f));
if (_filesToLoad.Count == 0)
{
Unload();
return;
}
MotionFrameHeader header = _serializer.LoadHeader(_filesToLoad.FirstOrDefault());
MinTimeUTC = header.TimeUTC;
CurrentTimeUTC = header.TimeUTC;
header = _serializer.LoadHeader(_filesToLoad.LastOrDefault());
MaxTimeUTC = header.TimeUTC;
Seek(0);
Status = PointCloudPlayerStatus.Stopped;
}
