private async void NewMediaOnParsedChanged(object sender, ObjectEventArgs <MediaParsedChangedArgs> e)
{
if (lastMedia == null)
{
throw new Exception("No media loaded");
}
FileInfo mediaFile = new FileInfo(new Uri(lastMedia.Mrl).LocalPath);
VidereMedia media = new VidereMedia(mediaFile)
{
Duration = lastMedia.Duration,
Name = lastMedia.GetMeta(MetaDataType.Title)
};
xZune.Vlc.MediaTrack vid = lastMedia.GetTracks( ).FirstOrDefault(O => O.Type == TrackType.Video);
if (vid?.VideoTrack != null)
{
VideoTrack vidTrack = vid.VideoTrack.Value;
media.Video = new VideoInfo
{
Width = vidTrack.Width,
Height = vidTrack.Height
};
}
xZune.Vlc.MediaTrack aud = lastMedia.GetTracks( ).FirstOrDefault(O => O.Type == TrackType.Audio);
if (aud?.AudioTrack != null)
{
AudioTrack audTrack = aud.AudioTrack.Value;
media.Audio = new AudioInfo
{
Channels = audTrack.Channels,
Rate = audTrack.Rate
};
}
await ViderePlayer.MainDispatcher.InvokeAsync(() => OnMediaLoaded( new OnMediaLoadedEventArgs(media)));
}
/*
* public void GetSubitems()
* {
* return GetSubitemsFunction.Delegate(InstancePointer);
* }
*/
/// <summary>
/// 获取媒体的基本流的描述,注意,在调用该方法之前你需要首先调用 <see cref="VlcMedia.Parse"/> 方法,或者至少播放一次.
/// 否则,你将的得到一个空数组
/// </summary>
public MediaTrack[] GetTracks()
{
var pointer = IntPtr.Zero;
var count = _getTracksFunction.Delegate(InstancePointer, ref pointer);
if (pointer == IntPtr.Zero)
{
var ex = VlcError.GetErrorMessage();
throw new Exception(ex);
}
var result = new MediaTrack[count];
var temp = pointer;
for (var i = 0; i < count; i++)
{
var p = Marshal.ReadIntPtr(temp);
result[i] = (MediaTrack)Marshal.PtrToStructure(p, typeof(MediaTrack));
temp = (IntPtr)((int)temp + Marshal.SizeOf(typeof(IntPtr)));
}
_releaseTracksFunction.Delegate(pointer, count);
return(result);
}