/// <summary>
/// 通用的评估函数
/// </summary>
/// <param name="locate"></param>
/// <param name="estimation"></param>
/// <param name="autoDispose"></param>
/// <returns>包含额外信息的位置</returns>
internal LocateResult Estimation(LocateResult locate, Action <ExtraFaceInput> estimation, bool autoDispose = true)
{
if (!locate.HasFace)
{
return(locate);
}
var faceInput = new ExtraFaceInput
{
lFaceNumber = locate.FaceCount,
pFaceRectArray = IntPtrExtensions.StructArrayToPtr(locate.Faces),
pFaceOrientArray =
IntPtrExtensions.StructArrayToPtr(locate.FacesOrient.Select(code => (int)code).ToArray())
};
try
{
estimation(faceInput);
return(locate);
}
finally
{
if (autoDispose)
{
locate.Dispose();
}
Marshal.FreeHGlobal(faceInput.pFaceRectArray);
Marshal.FreeHGlobal(faceInput.pFaceOrientArray);
}
}
public string GetErrorMessage()
{
if (VlcContext.InteropManager != null &&
VlcContext.InteropManager.ErrorHandlingInterops != null &&
VlcContext.InteropManager.ErrorHandlingInterops.ClearError.IsAvailable)
{
return(IntPtrExtensions.ToStringAnsi(VlcContext.InteropManager.ErrorHandlingInterops.GetErrorMessage.Invoke()));
}
return(null);
}
/// <summary>
/// Gets output device name
/// </summary>
/// <param name="outputName"></param>
/// <param name="deviceIndex"></param>
/// <returns></returns>
public string GetOutputDeviceIdName(string outputName, int deviceIndex)
{
if (VlcContext.InteropManager != null &&
VlcContext.InteropManager.MediaPlayerInterops != null &&
VlcContext.InteropManager.MediaPlayerInterops.AudioInterops != null &&
VlcContext.InteropManager.MediaPlayerInterops.AudioInterops.GetOutputDeviceIdName.IsAvailable &&
VlcContext.HandleManager != null &&
VlcContext.HandleManager.MediaPlayerHandles != null &&
VlcContext.HandleManager.MediaPlayerHandles.ContainsKey(myHostVlcControl))
{
return(IntPtrExtensions.ToStringAnsi(VlcContext.InteropManager.MediaPlayerInterops.AudioInterops.GetOutputDeviceIdName.Invoke(VlcContext.HandleManager.MediaPlayerHandles[myHostVlcControl], outputName, deviceIndex)));
}
return(null);
}
/// <summary>
/// Gets media metadata
/// </summary>
/// <param name="metadata">Media property</param>
/// <returns>Metadata value</returns>
private string GetMetadata(Metadatas metadata)
{
if (!VlcContext.HandleManager.MediasHandles.ContainsKey(myHostMediaBase))
{
return(null);
}
if (VlcContext.InteropManager.MediaInterops.IsParsed.Invoke(VlcContext.HandleManager.MediasHandles[myHostMediaBase]) == 0)
{
VlcContext.InteropManager.MediaInterops.Parse.Invoke(VlcContext.HandleManager.MediasHandles[myHostMediaBase]);
}
try
{
return(IntPtrExtensions.ToStringAnsi(VlcContext.InteropManager.MediaInterops.GetMetadata.Invoke(
VlcContext.HandleManager.MediasHandles[myHostMediaBase],
metadata)));
}
catch
{
return(null);
}
}
private void OnVlcEvent(ref LibVlcEventArgs eventData, IntPtr userData)
{
switch (eventData.Type)
{
case EventTypes.MediaPlayerBackward:
EventsHelper.RaiseEvent(Backward, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerBuffering:
EventsHelper.RaiseEvent(Buffering, this, new VlcEventArgs <float>(eventData.MediaPlayerBuffering.NewCache));
break;
case EventTypes.MediaPlayerEncounteredError:
EventsHelper.RaiseEvent(EncounteredError, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerEndReached:
EventsHelper.RaiseEvent(EndReached, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerForward:
EventsHelper.RaiseEvent(Forward, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerLengthChanged:
EventsHelper.RaiseEvent(LengthChanged, this, new VlcEventArgs <long>(eventData.MediaPlayerLengthChanged.NewLength));
break;
case EventTypes.MediaPlayerMediaChanged:
//TODO
//EventsHelper.RaiseEvent(MediaChanged, this, new VlcEventArgs<MediaBase>(eventData.MediaPlayerMediaChanged.NewMediaHandle));
break;
case EventTypes.MediaPlayerNothingSpecial:
break;
case EventTypes.MediaPlayerOpening:
break;
case EventTypes.MediaPlayerPausableChanged:
EventsHelper.RaiseEvent(PausableChanged, this, new VlcEventArgs <int>(eventData.MediaPlayerPausableChanged.NewPausable));
break;
case EventTypes.MediaPlayerPaused:
EventsHelper.RaiseEvent(Paused, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerPlaying:
EventsHelper.RaiseEvent(Playing, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerPositionChanged:
EventsHelper.RaiseEvent(PositionChanged, this, new VlcEventArgs <float>(eventData.MediaPlayerPositionChanged.NewPosition));
break;
case EventTypes.MediaPlayerSeekableChanged:
EventsHelper.RaiseEvent(SeekableChanged, this, new VlcEventArgs <int>(eventData.MediaPlayerSeekableChanged.NewSeekable));
break;
case EventTypes.MediaPlayerSnapshotTaken:
EventsHelper.RaiseEvent(SnapshotTaken, this, new VlcEventArgs <string>(IntPtrExtensions.ToStringAnsi(eventData.MediaPlayerSnapshotTaken.pszFilename)));
break;
case EventTypes.MediaPlayerStopped:
EventsHelper.RaiseEvent(Stopped, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case EventTypes.MediaPlayerTimeChanged:
EventsHelper.RaiseEvent(TimeChanged, this, new VlcEventArgs <TimeSpan>(TimeSpan.FromMilliseconds(eventData.MediaPlayerTimeChanged.NewTime)));
break;
case EventTypes.MediaPlayerTitleChanged:
EventsHelper.RaiseEvent(TitleChanged, this, new VlcEventArgs <long>(eventData.MediaPlayerTitleChanged.NewTitle));
break;
}
}
private void OnVlcEvent(ref libvlc_event_t eventData, IntPtr userData)
{
switch (eventData.type)
{
case libvlc_event_e.MediaPlayerBackward:
EventsHelper.RaiseEvent(Backward, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case libvlc_event_e.MediaPlayerBuffering:
EventsHelper.RaiseEvent(Buffering, this, new VlcEventArgs <float>(eventData.media_player_buffering.new_cache));
break;
case libvlc_event_e.MediaPlayerEncounteredError:
EventsHelper.RaiseEvent(EncounteredError, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case libvlc_event_e.MediaPlayerEndReached:
EventsHelper.RaiseEvent(EndReached, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case libvlc_event_e.MediaPlayerForward:
EventsHelper.RaiseEvent(Forward, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case libvlc_event_e.MediaPlayerLengthChanged:
EventsHelper.RaiseEvent(LengthChanged, this, new VlcEventArgs <long>(eventData.media_player_length_changed.new_length));
break;
case libvlc_event_e.MediaPlayerMediaChanged:
//TODO
//EventsHelper.RaiseEvent(MediaChanged, this, new VlcEventArgs<MediaBase>(eventData.media_player_media_changed.new_media));
break;
case libvlc_event_e.MediaPlayerNothingSpecial:
break;
case libvlc_event_e.MediaPlayerOpening:
break;
case libvlc_event_e.MediaPlayerPausableChanged:
EventsHelper.RaiseEvent(PausableChanged, this, new VlcEventArgs <int>(eventData.media_player_pausable_changed.new_pausable));
break;
case libvlc_event_e.MediaPlayerPaused:
EventsHelper.RaiseEvent(Paused, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case libvlc_event_e.MediaPlayerPositionChanged:
EventsHelper.RaiseEvent(PositionChanged, this, new VlcEventArgs <float>(eventData.media_player_position_changed.new_position));
break;
case libvlc_event_e.MediaPlayerSeekableChanged:
EventsHelper.RaiseEvent(SeekableChanged, this, new VlcEventArgs <int>(eventData.media_player_seekable_changed.new_seekable));
break;
case libvlc_event_e.MediaPlayerSnapshotTaken:
EventsHelper.RaiseEvent(SnapshotTaken, this, new VlcEventArgs <string>(IntPtrExtensions.ToStringAnsi(eventData.media_player_snapshot_taken.psz_filename)));
break;
case libvlc_event_e.MediaPlayerStopped:
EventsHelper.RaiseEvent(Stopped, this, new VlcEventArgs <EventArgs>(EventArgs.Empty));
break;
case libvlc_event_e.MediaPlayerTimeChanged:
EventsHelper.RaiseEvent(TimeChanged, this, new VlcEventArgs <long>(eventData.media_player_time_changed.new_time));
break;
case libvlc_event_e.MediaPlayerTitleChanged:
EventsHelper.RaiseEvent(TitleChanged, this, new VlcEventArgs <long>(eventData.media_player_title_changed.new_title));
break;
}
}
