/// <summary>
/// Initializes a new instance of the <see cref="MediaEngine" /> class.
/// </summary>
/// <param name="parent">The associated parent object.</param>
/// <param name="connector">The parent implementing connector methods.</param>
/// <exception cref="InvalidOperationException">Thrown when the static Initialize method has not been called.</exception>
public MediaEngine(object parent, IMediaConnector connector)
{
// var props = typeof(MediaEngine).GetProperties(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public);
// foreach (var p in props)
// {
// Console.WriteLine(p);
// }
// Assiciate the parent as the media connector that implements the callbacks
Parent = parent;
Connector = connector;
Commands = new MediaCommandManager(this);
// Don't start up timers or any other stuff if we are in design-time
if (Platform.IsInDesignTime)
{
return;
}
// Check initialization has taken place
lock (InitLock)
{
if (IsIntialized == false)
{
throw new InvalidOperationException(
$"{nameof(MediaEngine)} not initialized. Call the static method {nameof(Initialize)}");
}
}
}
#pragma warning restore SA1401 // Fields must be private
#endregion
#region Constructors
/// <summary>
/// Initializes a new instance of the <see cref="MediaElementCore"/> class.
/// </summary>
/// <param name="parent">The parent.</param>
/// <param name="isInDesignTime">if set to <c>true</c> [is in design time].</param>
public MediaElementCore(object parent, bool isInDesignTime)
{
Parent = parent;
Logger = new GenericMediaLogger <MediaElementCore>(this);
Commands = new MediaCommandManager(this);
if (!isInDesignTime)
{
// The UI Property update timer is responsible for timely updates to properties outside of the worker threads
// We use the loaded priority because it is the priority right below the Render one.
UIPropertyUpdateTimer = Platform.CreateTimer(CoreDispatcherPriority.Loaded);
UIPropertyUpdateTimer.Interval = Constants.UIPropertyUpdateInterval;
// The tick callback performs the updates
UIPropertyUpdateTimer.Tick += (s, e) =>
{
UpdatePosition(IsOpen ? Clock?.Position ?? TimeSpan.Zero : TimeSpan.Zero);
if (HasMediaEnded == false && CanReadMorePackets && (IsOpening || IsOpen))
{
var bufferedLength = Container?.Components?.PacketBufferLength ?? 0d;
BufferingProgress = Math.Min(1d, bufferedLength / BufferCacheLength);
var oldIsBugffering = IsBuffering;
var newIsBuffering = bufferedLength < BufferCacheLength;
if (oldIsBugffering == false && newIsBuffering)
{
RaiseBufferingStartedEvent();
}
else if (oldIsBugffering && newIsBuffering == false)
{
RaiseBufferingEndedEvent();
}
IsBuffering = HasMediaEnded == false && newIsBuffering;
}
else
{
BufferingProgress = 0;
IsBuffering = false;
}
var downloadProgress = Math.Min(1d, Math.Round((Container?.Components.PacketBufferLength ?? 0d) / DownloadCacheLength, 3));
if (double.IsNaN(downloadProgress))
{
downloadProgress = 0;
}
DownloadProgress = downloadProgress;
};
// Go ahead and fire up the continuous updates
UIPropertyUpdateTimer.IsEnabled = true;
UIPropertyUpdateTimer.Start();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaElement" /> class.
/// </summary>
public MediaElement()
: base()
{
Content = ViewBox;
Stretch = ViewBox.Stretch;
StretchDirection = ViewBox.StretchDirection;
Logger = new GenericMediaLogger <MediaElement>(this);
Commands = new MediaCommandManager(this);
if (Utils.IsInDesignTime)
{
// Shows an FFmpeg image if we are in design-time
var bitmap = Properties.Resources.FFmpegMediaElementBackground;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero,
Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
var targetBitmap = new WriteableBitmap(bitmapSource);
ViewBox.Source = targetBitmap;
}
else
{
// The UI Property update timer is responsible for timely updates to properties outside of the worker threads
UIPropertyUpdateTimer = new DispatcherTimer(DispatcherPriority.DataBind)
{
Interval = Constants.UIPropertyUpdateInterval,
IsEnabled = true
};
// The tick callback performs the updates
UIPropertyUpdateTimer.Tick += (s, e) =>
{
UpdatePosition(IsOpen ? Clock?.Position ?? TimeSpan.Zero : TimeSpan.Zero);
var downloadProgress = Math.Min(1d, Math.Round((Container?.Components.PacketBufferLength ?? 0d) / DownloadCacheLength, 3));
if (double.IsNaN(downloadProgress))
{
downloadProgress = 0;
}
DownloadProgress = downloadProgress;
};
// Go ahead and fire up the continuous updates
UIPropertyUpdateTimer.Start();
}
m_MetadataBase = new ObservableCollection <KeyValuePair <string, string> >();
m_Metadata = CollectionViewSource.GetDefaultView(m_MetadataBase) as ICollectionView;
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaElement"/> class.
/// </summary>
public MediaElement()
: base()
{
Content = ViewBox;
Stretch = ViewBox.Stretch;
StretchDirection = ViewBox.StretchDirection;
Commands = new MediaCommandManager(this);
if (Utils.IsInDesignTime)
{
// Shows an FFmpeg image if we are in design-time
var bitmap = Properties.Resources.FFmpegMediaElementBackground;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero,
Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
var targetBitmap = new WriteableBitmap(bitmapSource);
ViewBox.Source = targetBitmap;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaEngine" /> class.
/// </summary>
/// <param name="parent">The associated parent object.</param>
/// <param name="connector">The parent implementing connector methods.</param>
/// <exception cref="InvalidOperationException">Thrown when the static Initialize method has not been called.</exception>
public MediaEngine(object parent, IMediaConnector connector)
{
// Assiciate the parent as the media connector that implements the callbacks
Parent = parent;
Connector = connector;
Commands = new MediaCommandManager(this);
// Don't start up timers or any other stuff if we are in design-time
if (Platform.IsInDesignTime)
{
return;
}
// Check initialization has taken place
lock (InitLock)
{
if (IsIntialized == false)
{
throw new InvalidOperationException(
$"{nameof(MediaEngine)} not initialized. Call the static method {nameof(Initialize)}");
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PauseCommand" /> class.
/// </summary>
/// <param name="manager">The manager.</param>
public PauseCommand(MediaCommandManager manager)
: base(manager, MediaCommandType.Pause)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="PlayCommand" /> class.
/// </summary>
/// <param name="manager">The media element.</param>
public PlayCommand(MediaCommandManager manager)
: base(manager, MediaCommandType.Play)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="MediaElement" /> class.
/// </summary>
public MediaElement()
: base()
{
ContentGrid = new Grid {
Name = nameof(ContentGrid)
};
Content = ContentGrid;
ContentGrid.HorizontalAlignment = HorizontalAlignment.Stretch;
ContentGrid.VerticalAlignment = VerticalAlignment.Stretch;
ContentGrid.Children.Add(ViewBox);
Stretch = ViewBox.Stretch;
StretchDirection = ViewBox.StretchDirection;
Logger = new GenericMediaLogger <MediaElement>(this);
Commands = new MediaCommandManager(this);
if (Utils.IsInDesignTime)
{
// Shows an FFmpeg image if we are in design-time
var bitmap = Properties.Resources.FFmpegMediaElementBackground;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(
bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
var controlBitmap = new WriteableBitmap(bitmapSource);
ViewBox.Source = controlBitmap;
}
else
{
// The UI Property update timer is responsible for timely updates to properties outside of the worker threads
// We use the loaded priority because it is the priority right below the Render one.
UIPropertyUpdateTimer = new DispatcherTimer(DispatcherPriority.Loaded)
{
Interval = Constants.UIPropertyUpdateInterval,
IsEnabled = true
};
// The tick callback performs the updates
UIPropertyUpdateTimer.Tick += (s, e) =>
{
UpdatePosition(IsOpen ? Clock?.Position ?? TimeSpan.Zero : TimeSpan.Zero);
if (HasMediaEnded == false && CanReadMorePackets && (IsOpening || IsOpen))
{
var bufferedLength = Container?.Components?.PacketBufferLength ?? 0d;
BufferingProgress = Math.Min(1d, bufferedLength / BufferCacheLength);
var oldIsBugffering = IsBuffering;
var newIsBuffering = bufferedLength < BufferCacheLength;
if (oldIsBugffering == false && newIsBuffering == true)
{
RaiseBufferingStartedEvent();
}
else if (oldIsBugffering == true && newIsBuffering == false)
{
RaiseBufferingEndedEvent();
}
IsBuffering = HasMediaEnded == false && newIsBuffering;
}
else
{
BufferingProgress = 0;
IsBuffering = false;
}
var downloadProgress = Math.Min(1d, Math.Round((Container?.Components.PacketBufferLength ?? 0d) / DownloadCacheLength, 3));
if (double.IsNaN(downloadProgress))
{
downloadProgress = 0;
}
DownloadProgress = downloadProgress;
};
// Go ahead and fire up the continuous updates
UIPropertyUpdateTimer.Start();
}
m_MetadataBase = new ObservableCollection <KeyValuePair <string, string> >();
m_Metadata = CollectionViewSource.GetDefaultView(m_MetadataBase) as ICollectionView;
}
/// <summary>
/// Initializes a new instance of the <see cref="PauseCommand" /> class.
/// </summary>
/// <param name="manager">The manager.</param>
public PauseCommand(MediaCommandManager manager)
: base(manager, MediaCommandType.Pause)
{
// placeholder
}
