public void AttachAndStartPlayer(AudioVideoFlow audioVideoFlow, bool loop)
{
// Create a player and attach it to a AudioVideoFlow
Player player = new Player();
player.AttachFlow(audioVideoFlow);
//Subscribe to the player's state changed event, including the play completed event.
player.StateChanged += delegate(object sender, PlayerStateChangedEventArgs args)
{
if (loop && args.TransitionReason == PlayerStateTransitionReason.PlayCompleted)
{
// Restart player as soon as it completes playing the file.
((Player)sender).Start();
}
};
//Load the file into memory
WmaFileSource source = new WmaFileSource("music.wma");
source.BeginPrepareSource(MediaSourceOpenMode.Buffered, source_PrepareSourceCompleted, source);
_waitForPrepareSourceCompleted.WaitOne();
player.SetSource(source);
//Start playing the file
player.Start();
}
private void CreatePlayer()
{
var source = new WmaFileSource("music.wma");
source.EndPrepareSource(source.BeginPrepareSource(MediaSourceOpenMode.Buffered, null, null));
_player = new Player();
_player.SetSource(source);
_player.SetMode(PlayerMode.Manual);
_player.StateChanged += player_StateChanged;
_player.Start();
}
private void CreatePlayer()
{
var source = new WmaFileSource("music.wma");
source.EndPrepareSource(source.BeginPrepareSource(MediaSourceOpenMode.Buffered, null, null));
_player = new Player();
_player.SetSource(source);
_player.SetMode(PlayerMode.Manual);
_player.StateChanged += player_StateChanged;
_player.Start();
}
void Flow_StateChanged(object sender, MediaFlowStateChangedEventArgs e)
{
Log("Flow_StateChanged PreviousState=" + e.PreviousState + " State=" + e.State);
AudioVideoFlow avFlow = (AudioVideoFlow)sender;
if (avFlow.State == MediaFlowState.Active)
{
Player player = new Player();
player.StateChanged += new EventHandler <PlayerStateChangedEventArgs>(player_StateChanged);
player.AttachFlow(avFlow);
WmaFileSource src = new WmaFileSource(_FileName);
src.BeginPrepareSource(MediaSourceOpenMode.Buffered,
ar =>
{
try
{
src.EndPrepareSource(ar);
player.SetSource(src);
// For some reason, PlayerMode.Automatic does not loop audio
player.SetMode(PlayerMode.Manual);
player.Start();
Log("Playing \"" + _FileName + "\"");
}
catch (Exception ex)
{
Log(ex.ToString());
}
},
null);
}
else if (avFlow.State == MediaFlowState.Terminated)
{
if (avFlow.Player != null)
{
if (avFlow.Player.Source != null)
{
avFlow.Player.Source.Close();
}
avFlow.Player.DetachFlow(avFlow);
}
}
}
/// <summary>
/// Plays a WMA file using the specified Audio Video Flow.
/// </summary>
/// <param name="flowToPlayUsing">
/// The flow to use when playing the file.
/// </param>
/// <param name="fileToPlay">
/// The path to the wma file to be played.
/// </param>
private void PlayWmaFileAudio(AudioVideoFlow flowToPlayUsing, string fileToPlay)
{
// Set the media source that the player will use.
WmaFileSource wmaSource = new WmaFileSource(fileToPlay);
MediaSourceAndAvFlowContainer sourceAndFlowContainer = new MediaSourceAndAvFlowContainer(
wmaSource, flowToPlayUsing);
try
{
wmaSource.BeginPrepareSource(MediaSourceOpenMode.Unbuffered,
WmaSourcePreparationCompleted,
sourceAndFlowContainer);
}
catch (ArgumentOutOfRangeException argOOREx)
{
// TODO (Left to the reader): Write actual handling code for the
// occurrence.
Console.WriteLine("An ArgumentOutOfRangeException occured when preparing the media source: "
+ "{0}", argOOREx.ToString());
}
}
protected override void StartupCore()
{
try
{
m_mohFileSource = new WmaFileSource(m_mohFilePath);
m_mohPlayer = new Player();
m_mohPlayer.SetMode(PlayerMode.Manual);
m_mohPlayer.SetSource(m_mohFileSource);
m_mohPlayer.StateChanged += this.OnPlayerStateChanged;
m_mohFileSource.BeginPrepareSource(
MediaSourceOpenMode.Buffered,
ar =>
{
try
{
m_mohFileSource.EndPrepareSource(ar);
m_mohPlayer.Start();
this.CompleteStartup(null);
}
catch (InvalidOperationException ioe)
{
this.CompleteStartup(ioe);
}
catch (OperationFailureException rte)
{
this.CompleteStartup(rte);
}
},
null);
}
catch (InvalidOperationException ioe)
{
this.CompleteStartup(ioe);
}
}
void Flow_StateChanged(object sender, MediaFlowStateChangedEventArgs e)
{
Log("Flow_StateChanged PreviousState=" + e.PreviousState + " State=" + e.State);
AudioVideoFlow avFlow = (AudioVideoFlow)sender;
if (avFlow.State == MediaFlowState.Active)
{
Player player = new Player();
player.StateChanged += new EventHandler<PlayerStateChangedEventArgs>(player_StateChanged);
player.AttachFlow(avFlow);
WmaFileSource src = new WmaFileSource(_FileName);
src.BeginPrepareSource(MediaSourceOpenMode.Buffered,
ar=>
{
try
{
src.EndPrepareSource(ar);
player.SetSource(src);
// For some reason, PlayerMode.Automatic does not loop audio
player.SetMode(PlayerMode.Manual);
player.Start();
Log("Playing \"" + _FileName + "\"");
}
catch (Exception ex)
{
Log(ex.ToString());
}
},
null);
}
else if (avFlow.State == MediaFlowState.Terminated)
{
if (avFlow.Player != null)
{
if (avFlow.Player.Source != null)
{
avFlow.Player.Source.Close();
}
avFlow.Player.DetachFlow(avFlow);
}
}
}
public void Run()
{
// Create AudioVideoFlow
AudioVideoFlowHelper audioVideoFlowHelper = new AudioVideoFlowHelper();
_audioVideoFlow = audioVideoFlowHelper.CreateAudioVideoFlow(
null,
audioVideoFlow_StateChanged);
// Create a player and attach it to a AudioVideoFlow
Player player = new Player();
player.AttachFlow(_audioVideoFlow);
//Subscribe to the player's state changed event, including the play completed event.
player.StateChanged += new EventHandler <PlayerStateChangedEventArgs>(player_StateChanged);
//Load the file into memory
WmaFileSource source = new WmaFileSource("music.wma");
source.BeginPrepareSource(MediaSourceOpenMode.Buffered, source_PrepareSourceCompleted, source);
_waitForPrepareSourceCompleted.WaitOne();
//in automatic mode, player will start playing only when the flow is in the active state.
//in manual mode, player will start playing immediately.
player.SetMode(PlayerMode.Automatic);
player.SetSource(source);
//Start playing the file
player.Start();
Console.WriteLine("Start playing for 10 seconds");
//Allow the player to play for 10 seconds by waiting for 10 seconds
Thread.Sleep(10000);
//Pauses player
player.Pause();
Console.WriteLine("Pausing for 5 seconds");
//Wait 5 seconds
Thread.Sleep(5000);
//Change playback speed to half of the regular speed
player.PlaybackSpeed = PlaybackSpeed.Half;
Console.WriteLine("Playback speed change to half of the regular speed");
//Resume playing from where we paused the player at previously
player.Start();
Console.WriteLine("Resume playing for 10 seconds");
Thread.Sleep(10000);
//Stop the player and reset position to the beginning
player.Stop();
Console.WriteLine("Stopping the player");
// Source must be closed after it is no longer needed, otherwise memory will not be released even after garbage collection.
source.Close();
//player must be detached from the flow, otherwise if the player is rooted, it will keep the flow in memory.
player.DetachFlow(_audioVideoFlow);
// Shutdown the platform
ShutdownPlatform();
//Wait for shutdown to occur.
_waitForShutdownEventCompleted.WaitOne();
}