/// <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);
}
/// <summary>
/// 使用已经设定好的路径,载入 LibVlc
/// </summary>
public static void LoadLibVlc()
{
if (!IsLibLoaded)
{
try
{
FileInfo libcore = new FileInfo(Path.Combine(LibDirectory, @"libvlccore.dll"));
FileInfo libvlc = new FileInfo(Path.Combine(LibDirectory, @"libvlc.dll"));
LibCoreHandle = Win32Api.LoadLibrary(libcore.FullName);
LibHandle = Win32Api.LoadLibrary(libvlc.FullName);
}
catch (Win32Exception e)
{
throw new Exception("无法载入 LibVlc 库", e);
}
_getVersionFunction = new LibVlcFunction <GetVersion>(LibHandle);
var versionString = InteropHelper.PtrToString(_getVersionFunction.Delegate());
var match = Regex.Match(versionString, "^[0-9.]*");
if (match.Success)
{
LibVersion = new Version(match.Groups[0].Value);
}
var devString = LibDev = versionString.Split(' ', '-')[1];
_newInstanceFunction = new LibVlcFunction <NewInstance>(LibHandle, LibVersion, devString);
_releaseInstanceFunction = new LibVlcFunction <ReleaseInstance>(LibHandle, LibVersion, devString);
_retainInstanceFunction = new LibVlcFunction <RetainInstance>(LibHandle, LibVersion, devString);
_addInterfaceFunction = new LibVlcFunction <AddInterface>(LibHandle, LibVersion, devString);
_setExitHandlerFunction = new LibVlcFunction <SetExitHandler>(LibHandle, LibVersion, devString);
_waitFunction = new LibVlcFunction <Wait>(LibHandle, LibVersion, devString);
_setUserAgentFunction = new LibVlcFunction <SetUserAgent>(LibHandle, LibVersion, devString);
_setAppIdFunction = new LibVlcFunction <SetAppId>(LibHandle, LibVersion, devString);
_getCompilerFunction = new LibVlcFunction <GetCompiler>(LibHandle, LibVersion, devString);
_getChangesetFunction = new LibVlcFunction <GetChangeset>(LibHandle, LibVersion, devString);
_freeFunction = new LibVlcFunction <Free>(LibHandle, LibVersion, devString);
_releaseLibVlcModuleDescriptionFunction = new LibVlcFunction <ReleaseLibVlcModuleDescription>(LibHandle, LibVersion, devString);
_getAudioFilterListFunction = new LibVlcFunction <GetAudioFilterList>(LibHandle, LibVersion, devString);
_getVideoFilterListFunction = new LibVlcFunction <GetVideoFilterList>(LibHandle, LibVersion, devString);
VlcError.LoadLibVlc(LibHandle, LibVersion, devString);
VlcEventManager.LoadLibVlc(LibHandle, LibVersion, devString);
VlcMedia.LoadLibVlc(LibHandle, LibVersion, devString);
VlcMediaPlayer.LoadLibVlc(LibHandle, LibVersion, devString);
IsLibLoaded = true;
}
}
/// <summary>
/// Load LibVlc dlls, and mapping all function.
/// </summary>
/// <param name="libVlcDirectory">directory of LibVlc</param>
/// <exception cref="LibVlcLoadLibraryException">
/// Can't load LibVlc dlls, check the platform and LibVlc target platform
/// (should be same, x86 or x64).
/// </exception>
/// <exception cref="TypeLoadException">A custom attribute type cannot be loaded. </exception>
/// <exception cref="NoLibVlcFunctionAttributeException">
/// For LibVlcFunction, need LibVlcFunctionAttribute to get Infomation
/// of function.
/// </exception>
/// <exception cref="FunctionNotFoundException">Can't find function in dll.</exception>
/// <exception cref="VersionStringParseException">Can't parse libvlc version string, it must like "2.2.0-xZune Weatherwax".</exception>
/// <exception cref="OverflowException">
/// At least one component of version represents a number greater than
/// <see cref="F:System.Int32.MaxValue" />.
/// </exception>
public static void LoadLibVlc(String libVlcDirectory = null)
{
LibVlcDirectory = libVlcDirectory == null ? "" : libVlcDirectory;
if (IsLibLoaded)
{
return;
}
try
{
FileInfo libcore = new FileInfo(Path.Combine(LibVlcDirectory, "libvlccore.dll"));
FileInfo libvlc = new FileInfo(Path.Combine(LibVlcDirectory, "libvlc.dll"));
LibVlcVCoreHandle = Win32Api.LoadLibrary(libcore.FullName);
LibVlcHandle = Win32Api.LoadLibrary(libvlc.FullName);
}
catch (Win32Exception e)
{
throw new LibVlcLoadLibraryException(e);
}
_getVersionFunction = new LibVlcFunction <GetVersion>();
LibVlcVersion = new LibVlcVersion(GetVersion());
_getCompilerFunction = new LibVlcFunction <GetCompiler>();
_getChangesetFunction = new LibVlcFunction <GetChangeset>();
_freeFunction = new LibVlcFunction <Free>();
_releaseLibVlcModuleDescriptionFunction = new LibVlcFunction <ReleaseLibVlcModuleDescription>();
_releaseAudioOutputListFunction = new LibVlcFunction <ReleaseAudioOutputList>();
_releaseAudioDeviceListFunction = new LibVlcFunction <ReleaseAudioDeviceList>();
_releaseTrackDescriptionFunction = new LibVlcFunction <ReleaseTrackDescription>();
_releaseTracksFunction = new LibVlcFunction <ReleaseTracks>();
Vlc.LoadLibVlc();
VlcError.LoadLibVlc();
VlcEventManager.LoadLibVlc();
VlcMedia.LoadLibVlc();
VlcMediaPlayer.LoadLibVlc();
AudioEqualizer.LoadLibVlc();
}
/*
* 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);
}
