/// <summary>
/// 提供指定的参数初始化一个 Vlc 实例
/// </summary>
/// <param name="argv"></param>
/// <exception cref="VlcCreateFailException">Can't create a Vlc instence, check your Vlc options.</exception>
/// <exception cref="Exception">A delegate callback throws an exception.</exception>
public Vlc(String[] argv)
{
InstancePointer = argv == null
? _newInstanceFunction.Delegate(0, IntPtr.Zero)
: _newInstanceFunction.Delegate(argv.Length, InteropHelper.StringArrayToPtr(argv));
if (InstancePointer == IntPtr.Zero)
{
var ex = VlcError.GetErrorMessage();
throw new VlcCreateFailException(ex);
}
EventManager = new VlcEventManager(this, _getMediaEventManagerFunction.Delegate(InstancePointer));
_onVlmMediaAdded = OnVlmMediaAdded;
_onVlmMediaRemoved = OnVlmMediaRemoved;
_onVlmMediaChanged = OnVlmMediaChanged;
_onVlmMediaInstanceStarted = OnVlmMediaInstanceStarted;
_onVlmMediaInstanceStopped = OnVlmMediaInstanceStopped;
_onVlmMediaInstanceStatusInit = OnVlmMediaInstanceStatusInit;
_onVlmMediaInstanceStatusOpening = OnVlmMediaInstanceStatusOpening;
_onVlmMediaInstanceStatusPlaying = OnVlmMediaInstanceStatusPlaying;
_onVlmMediaInstanceStatusPause = OnVlmMediaInstanceStatusPause;
_onVlmMediaInstanceStatusEnd = OnVlmMediaInstanceStatusEnd;
_onVlmMediaInstanceStatusError = OnVlmMediaInstanceStatusError;
_onVlmMediaAddedHandle = GCHandle.Alloc(_onVlmMediaAdded);
_onVlmMediaRemovedHandle = GCHandle.Alloc(_onVlmMediaRemoved);
_onVlmMediaChangedHandle = GCHandle.Alloc(_onVlmMediaChanged);
_onVlmMediaInstanceStartedHandle = GCHandle.Alloc(_onVlmMediaInstanceStarted);
_onVlmMediaInstanceStoppedHandle = GCHandle.Alloc(_onVlmMediaInstanceStopped);
_onVlmMediaInstanceStatusInitHandle = GCHandle.Alloc(_onVlmMediaInstanceStatusInit);
_onVlmMediaInstanceStatusOpeningHandle = GCHandle.Alloc(_onVlmMediaInstanceStatusOpening);
_onVlmMediaInstanceStatusPlayingHandle = GCHandle.Alloc(_onVlmMediaInstanceStatusPlaying);
_onVlmMediaInstanceStatusPauseHandle = GCHandle.Alloc(_onVlmMediaInstanceStatusPause);
_onVlmMediaInstanceStatusEndHandle = GCHandle.Alloc(_onVlmMediaInstanceStatusEnd);
_onVlmMediaInstanceStatusErrorHandle = GCHandle.Alloc(_onVlmMediaInstanceStatusError);
HandleManager.Add(this);
EventManager.Attach(EventTypes.VlmMediaAdded, _onVlmMediaAdded, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaRemoved, _onVlmMediaRemoved, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaChanged, _onVlmMediaChanged, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStarted, _onVlmMediaInstanceStarted, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStopped, _onVlmMediaInstanceStopped, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStatusInit, _onVlmMediaInstanceStatusInit, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStatusOpening, _onVlmMediaInstanceStatusOpening, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStatusPlaying, _onVlmMediaInstanceStatusPlaying, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStatusPause, _onVlmMediaInstanceStatusPause, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStatusEnd, _onVlmMediaInstanceStatusEnd, IntPtr.Zero);
EventManager.Attach(EventTypes.VlmMediaInstanceStatusError, _onVlmMediaInstanceStatusError, IntPtr.Zero);
}
/// <summary>
/// 提供指定的参数初始化一个 Vlc 实例
/// </summary>
/// <param name="argv"></param>
public Vlc(String[] argv)
{
if (!IsLibLoaded)
{
LoadLibVlc();
}
InstancePointer = argv == null?_newInstanceFunction.Delegate(0, IntPtr.Zero) : _newInstanceFunction.Delegate(argv.Length, InteropHelper.StringArrayToPtr(argv));
if (InstancePointer == IntPtr.Zero)
{
var ex = VlcError.GetErrorMessage();
throw new Exception(ex);
}
HandleManager.Add(this);
}
/*
* 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);
}