//接受語音事件
private void SreSpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
/*
* if (e.Result.Confidence < 0.2)//肯定度低於0.6，判為錯誤語句
* {
* return;
* }*/
switch (e.Result.Text.ToUpperInvariant())
{
case "STOP":
VideoElement.Pause();
break;
case "PLAY":
VideoElement.Play();
break;
case "LOUD":
VideoElement.Volume += 2;
break;
case "XIAO SHENG":
VideoElement.Volume += -1;
break;
case "TIMEOUT":
unit = 7;
MessageBox.Show("暫停");
break;
}
}
/// <summary>
/// Play next song in playlist.
/// </summary>
public async void BtnPlay_Click(object sender, RoutedEventArgs e)
{
_videoPlay = true;
_forcePaused = false;
if (ComponentPlayer.Current == null)
{
BtnOpen_Click(sender, e);
return;
}
switch (ComponentPlayer.Current.PlayerStatus)
{
case PlayerStatus.Playing:
if (VideoElement?.Source != null)
{
await VideoElement.Pause();
}
PauseMedia();
break;
case PlayerStatus.Ready:
case PlayerStatus.Stopped:
case PlayerStatus.Paused:
if (VideoElement?.Source != null)
{
await VideoElement.Play();
}
PlayMedia();
break;
}
}
private async Task PauseVideo()
{
if (VideoElement.MediaState != MediaPlaybackState.Play)
{
return;
}
await VideoElement.Pause();
}
private void SetUpVideo() //get the incoming video object, load it into MediaElement for playback and pause it
{
VideoElement.Source = new Uri(VideoPath, UriKind.Absolute);
VideoElement.MediaFailed += MediaFailed;
VideoElement.Loaded += MediaLoaded;
VideoElement.Pause();
GetVideoDuration(); //get videos duration
TimeSpan time = TimeSpan.FromSeconds(0); //go to the beginning of of the video
VideoElement.Position = time;
}
private void PlayStopButtonClick(object sender, RoutedEventArgs e)
{
if (PlayButton.IsChecked.Value)
{
VideoElement.Play();
PlayButton.Content = "\ue103";
}
else
{
VideoElement.Pause();
PlayButton.Content = "\ue102";
}
}
//private async void VideoPlay()
//{
// //await VideoElement.Pause();
// //await VideoElement.Play();
//}
private async Task VideoJumpTo(int milliseconds)
{
_waitActionCts = new MyCancellationTokenSource();
Guid?guid = _waitActionCts?.Guid;
var trueOffset = milliseconds + _videoOffset;
if (trueOffset < 0)
{
await VideoElement.Pause();
VideoElement.Position = TimeSpan.FromMilliseconds(0);
await Task.Run(() => { Thread.Sleep(TimeSpan.FromMilliseconds(-trueOffset)); });
if (_waitActionCts?.Guid != guid || _waitActionCts?.IsCancellationRequested == true)
{
return;
}
if (!_forcePaused)
{
await VideoElement.Play();
}
else
{
await VideoElement.Pause();
}
}
else
{
//if (_mediaEnded)
//{
// VideoElement.Position = TimeSpan.FromMilliseconds(0);
// await Task.Run(() => { Thread.Sleep(10); });
//}
if (!_forcePaused)
{
await VideoElement.Play();
}
else
{
await VideoElement.Pause();
}
VideoElement.Position = TimeSpan.FromMilliseconds(trueOffset);
}
}
private void btnPlayPause_Checked(object sender, RoutedEventArgs e)
{
VideoElement.Pause();
btnPlayPause.Content = "Play";
}
private void btn_pasue_Click(object sender, RoutedEventArgs e)
{
VideoElement.Pause(); // 控制影片暫停
}