//==========================================================================
/// <summary>
/// Frees the provided library.
/// </summary>
/// <param name="library">
/// The library to free.
/// </param>
/// <returns>
/// The number how ofter the library is still referenced; will be <c>0</c>
/// in case the library is no longer referenced and has been disposed.
/// </returns>
public static uint Free(LibVLCLibrary library)
{
if (library == null)
{
throw new ArgumentNullException("library");
}
lock (m_LibraryHandles)
{
LibraryHandle library_handle;
if (m_LibraryHandles.TryGetValue(library.Directory, out library_handle))
{
if (library_handle.Library == library)
{
if (--library_handle.ReferenceCounter == 0)
{
library_handle.Library.Dispose();
m_LibraryHandles.Remove(library.Directory);
}
if (library_handle == m_DefaultLibraryHandle)
{
m_DefaultLibraryHandle = null;
}
return(library_handle.ReferenceCounter);
}
}
}
throw new ArgumentException("The provided library has not been loaded using the Load method!", "library");
}
public void Start(int Width, int Height)
{
if (store.Count > 0)
store[0].Stop();
store.Add(this);
this.Width = Width;
this.Height = Height;
library = LibVLCLibrary.Load(null);
inst = library.m_libvlc_new(4,
new string[] {":sout-udp-caching=0", ":udp-caching=0", ":rtsp-caching=0", ":tcp-caching=0"});
//libvlc_new() // Load the VLC engine
m = library.libvlc_media_new_location(inst, playurl);
// Create a new item
mp = library.libvlc_media_player_new_from_media(m); // Create a media player playing environement
library.libvlc_media_release(m); // No need to keep the media now
vlc_lock_delegate = new LibVLCLibrary.libvlc_video_lock_cb(vlc_lock);
vlc_unlock_delegate = new LibVLCLibrary.libvlc_video_unlock_cb(vlc_unlock);
vlc_picture_delegate = new LibVLCLibrary.libvlc_video_display_cb(vlc_picture);
library.libvlc_video_set_callbacks(mp,
vlc_lock_delegate,
vlc_unlock_delegate,
vlc_picture_delegate);
library.libvlc_video_set_format(mp, "RV24", (uint)Width, (uint)Height, (uint)Width*4);
library.libvlc_media_player_play(mp); // play the media_player
}
private void EventManager_Event(ref LibVLCLibrary.libvlc_event_t e, IntPtr userData)
{
Debug.WriteLine(String.Format("EventManager_Event({0})", e.type), "MediaPlayer");
if (e.type == LibVLCLibrary.libvlc_event_e.libvlc_MediaPlayerPlaying)
{
signalPlaying.Release();
}
if (e.type == LibVLCLibrary.libvlc_event_e.libvlc_MediaPlayerEndReached)
{
endReached = true;
}
if (e.type == LibVLCLibrary.libvlc_event_e.libvlc_MediaPlayerStopped)
{
stopped = true;
}
if (e.type == LibVLCLibrary.libvlc_event_e.libvlc_MediaPlayerEncounteredError)
{
errorOccured = true;
signalPlaying.Release();
}
if (e.type == LibVLCLibrary.libvlc_event_e.libvlc_VlmMediaInstanceStatusError)
{
throw new Exception("libvlc_VlmMediaInstanceStatusError occurred. this shouldn't happen.");
}
}
//==========================================================================
/// <summary>
/// Initializes a new instance of the class <see cref="Instance"/>.
/// </summary>
/// <param name="library">
/// May be <c>null</c> to use the default library.
/// </param>
public Instance(LibVLCLibrary library)
{
if(library == null)
{
m_Library = LibVLCLibrary.Load(null);
m_IsLibraryOwner = true;
}
else
{
m_Library = library;
m_IsLibraryOwner = false;
}
try
{
m_Handle = m_Library.libvlc_new();
if(m_Handle == IntPtr.Zero)
throw new LibVLCException(m_Library);
}
catch
{
if(m_IsLibraryOwner)
try
{
LibVLCLibrary.Free(m_Library);
}
catch
{
// ...
}
throw;
}
}
//==========================================================================
private static string GetErrorMessage(LibVLCLibrary library)
{
if(library == null)
throw new ArgumentNullException("library");
return library.libvlc_errmsg();
}
//==========================================================================
private void Dispose(bool disposing)
{
if (m_MediaPlayerHandle != IntPtr.Zero)
{
m_Library.libvlc_media_player_release(m_MediaPlayerHandle);
if (disposing)
{
UnregisterMediaPlayer(m_MediaPlayerHandle);
}
m_MediaPlayerHandle = IntPtr.Zero;
}
if (disposing)
{
if (m_Instance != null)
{
if (m_IsInstanceOwner)
{
m_Instance.Dispose();
}
m_Instance = null;
}
if (m_Library != null)
{
if (m_IsLibraryOwner)
{
LibVLCLibrary.Free(m_Library);
}
m_Library = null;
}
}
}
//==========================================================================
internal Track(int index, LibVLCLibrary.libvlc_track_description_t trackDescription, LibVLCLibrary.libvlc_media_track_info_t? trackInfo)
{
m_Name = trackDescription.psz_name;
// Title 1 - [Deutsch]
// Title 2 - [English]
Match match = m_NameLanguageRegex.Match(m_Name);
if(match.Success)
{
m_Title = match.Groups[1].Value;
m_Language = match.Groups[2].Value;
m_Culture = GetCulture(m_Language);
}
else
{
m_Title = trackDescription.psz_name;
m_Language = null;
m_Culture = null;
}
if(trackInfo.HasValue)
{
m_Codec = Encoding.ASCII.GetString(BitConverter.GetBytes(trackInfo.Value.i_codec));
for(int i = 0; i < m_Codec.Length; ++i)
if(m_Codec[i] == '\0')
{
m_Codec = m_Codec.Substring(0, i);
break;
}
}
else
m_Codec = null;
m_Index = index;
}
//==========================================================================
internal VideoTrack(int index, LibVLCLibrary.libvlc_track_description_t trackDescription, LibVLCLibrary.libvlc_media_track_info_t? trackInfo)
: base(index, trackDescription, trackInfo)
{
if(trackInfo.HasValue)
{
m_Width = (int)trackInfo.Value.video.i_width;
m_Height = (int)trackInfo.Value.video.i_height;
}
}
//==========================================================================
private static string GetErrorMessage(LibVLCLibrary library)
{
if (library == null)
{
throw new ArgumentNullException("library");
}
return(library.libvlc_errmsg());
}
//==========================================================================
internal AudioTrack(int index, LibVLCLibrary.libvlc_track_description_t trackDescription, LibVLCLibrary.libvlc_media_track_info_t? trackInfo)
: base(index, trackDescription, trackInfo)
{
if(trackInfo.HasValue)
{
m_BitRate = (int)trackInfo.Value.audio.i_rate;
m_Channels = (int)trackInfo.Value.audio.i_channels;
}
}
public void Stop()
{
store.Remove(this);
if (library == null)
return;
library.libvlc_media_player_stop(mp); // Stop playing
library.libvlc_media_player_release(mp); // Free the media_player
library.libvlc_release(inst);
LibVLCLibrary.Free(library);
library = null;
if (imageIntPtr != null)
Marshal.FreeHGlobal(imageIntPtr);
}
//==========================================================================
private void Dispose(bool disposing)
{
if (m_Handle != IntPtr.Zero)
{
m_Library.libvlc_release(m_Handle);
m_Handle = IntPtr.Zero;
}
if (disposing)
{
if (m_Library != null)
{
if (m_IsLibraryOwner)
{
LibVLCLibrary.Free(m_Library);
}
m_Library = null;
}
}
}
//==========================================================================
/// <summary>
/// Initializes a new instance of the class <see cref="Instance"/>.
/// </summary>
/// <param name="library">
/// May be <c>null</c> to use the default library.
/// </param>
public Instance(LibVLCLibrary library)
{
if (library == null)
{
m_Library = LibVLCLibrary.Load(null);
m_IsLibraryOwner = true;
}
else
{
m_Library = library;
m_IsLibraryOwner = false;
}
try
{
m_Handle = m_Library.libvlc_new();
if (m_Handle == IntPtr.Zero)
{
throw new LibVLCException(m_Library);
}
}
catch
{
if (m_IsLibraryOwner)
{
try
{
LibVLCLibrary.Free(m_Library);
}
catch
{
// ...
}
}
throw;
}
}
//==========================================================================
private void Dispose(bool disposing)
{
if(m_MediaPlayerHandle != IntPtr.Zero)
{
m_Library.libvlc_media_player_release(m_MediaPlayerHandle);
if(disposing)
UnregisterMediaPlayer(m_MediaPlayerHandle);
m_MediaPlayerHandle = IntPtr.Zero;
}
if(disposing)
{
if(m_Instance != null)
{
if(m_IsInstanceOwner)
m_Instance.Dispose();
m_Instance = null;
}
if(m_Library != null)
{
if(m_IsLibraryOwner)
LibVLCLibrary.Free(m_Library);
m_Library = null;
}
}
}
//==========================================================================
public MediaPlayer(LibVLCLibrary library, Instance instance)
{
if(library != null)
if(instance != null)
if(instance.Library != library)
throw new ArgumentException("The provided instance has not been created with the provided library!", "instance");
if(instance != null)
if(library == null)
library = instance.Library;
if(library == null)
{
m_Library = LibVLCLibrary.Load(null);
m_IsLibraryOwner = true;
}
else
{
m_Library = library;
m_IsLibraryOwner = false;
}
try
{
if(instance == null)
{
m_Instance = new Instance(m_Library);
m_IsInstanceOwner = true;
}
else
{
m_Instance = instance;
m_IsInstanceOwner = false;
}
try
{
m_MediaPlayerHandle = CreateHandle();
}
catch
{
if(m_IsInstanceOwner)
m_Instance.Dispose();
m_Instance = null;
throw;
}
}
catch
{
if(m_IsLibraryOwner)
LibVLCLibrary.Free(m_Library);
m_Library = null;
throw;
}
}
//==========================================================================
private static void EventManager_Event(ref LibVLCLibrary.libvlc_event_t e, IntPtr userData)
{
Debug.WriteLine(String.Format("EventManager_Event({0})", e.type), "MediaPlayer");
MediaPlayer media_player = GetMediaPlayer(e.p_obj);
if(media_player == null)
return;
if(e.type == LibVLCLibrary.libvlc_event_e.libvlc_MediaPlayerPlaying)
{
// Ensure no more than one video tracks will be rendered...
int track_count = media_player.m_Library.libvlc_video_get_track_count(media_player.m_MediaPlayerHandle);
if(track_count > 2)
{
int video_track_index = media_player.m_Library.libvlc_video_get_track(media_player.m_MediaPlayerHandle);
media_player.m_Library.libvlc_video_set_track(media_player.m_MediaPlayerHandle, -1);
if(video_track_index > 0)
media_player.m_Library.libvlc_video_set_track(media_player.m_MediaPlayerHandle, video_track_index - 1);
}
}
media_player.RaiseEvent((MediaPlayerEvent)e.type);
}
//==========================================================================
/// <summary>
/// Initializes a new <see cref="LibVLCException"/> with the most recent
/// <c>LibVLC</c> error.
/// </summary>
/// <param name="library">
/// The <see cref="LibVLCLibrary"/> which will be used to obtain the
/// most recent error for the calling thread.
/// </param>
/// <remarks>
/// <see cref="LibVLCLibrary.libvlc_errmsg"/> is called to get the
/// message to initialize <see cref="Exception.Message"/> with.
/// </remarks>
public LibVLCException(LibVLCLibrary library)
: this(GetErrorMessage(library))
{
// ...
}
//------------------------------------------------------------------------
public LibraryHandle(string libVLCDirectory)
{
ReferenceCounter = 0;
Library = new LibVLCLibrary(libVLCDirectory);
}
//==========================================================================
private void Dispose(bool disposing)
{
if(m_Handle != IntPtr.Zero)
{
m_Library.libvlc_release(m_Handle);
m_Handle = IntPtr.Zero;
}
if(disposing)
if(m_Library != null)
{
if(m_IsLibraryOwner)
LibVLCLibrary.Free(m_Library);
m_Library = null;
}
}
//==========================================================================
/// <summary>
/// Initializes a new <see cref="LibVLCException"/> with the most recent
/// <c>LibVLC</c> error.
/// </summary>
/// <param name="library">
/// The <see cref="LibVLCLibrary"/> which will be used to obtain the
/// most recent error for the calling thread.
/// </param>
/// <remarks>
/// <see cref="LibVLCLibrary.libvlc_errmsg"/> is called to get the
/// message to initialize <see cref="Exception.Message"/> with.
/// </remarks>
public LibVLCException(LibVLCLibrary library)
: this(GetErrorMessage(library))
{
// ...
}
private void GenerateImpl(int thumbnailWidth, int secondStep, string thumbnailDir, string filepath, NamedPipeClient<string> mediaScribeServer)
{
//TODO - ensure that these don't get wrapped in quotes, so we don't have to strip them out.
filepath = filepath.Substring(1, filepath.Length - 2);
thumbnailDir = thumbnailDir.Substring(1, thumbnailDir.Length - 2);
if (false == Directory.Exists(thumbnailDir))
Directory.CreateDirectory(thumbnailDir);
if (null == library)
{
#region start VLC
string[] vlcargs = {
"--intf", "dummy", /* no interface */
"--vout", "dummy", /* we don't want video (output) */
"--no-audio", /* we don't want audio (decoding) */
"--no-video-title-show", /* nor the filename displayed */
"--no-stats", /* no stats */
"--no-sub-autodetect-file", /* we don't want subtitles */
"--no-spu",
"--no-osd",
// "--no-inhibit", /* we don't want interfaces */
"--no-disable-screensaver", /* we don't want interfaces */
"--no-snapshot-preview", /* no blending in dummy vout */
};
library = LibVLCLibrary.Load(null);
IntPtr m;
/* Load the VLC engine */
inst = library.libvlc_new(vlcargs);
/* Create a new item */
m = library.libvlc_media_new_path(inst, filepath);
/* Create a media player playing environement */
mp = library.libvlc_media_player_new_from_media(m);
//hook up the libvlc event listening
int event_index = 0;
IntPtr media_player_event_manager = library.libvlc_media_player_event_manager(mp);
LibVLCLibrary.libvlc_callback_t m_EventManagerEventCallback = EventManager_Event;
while (event_index < m_Events.Length)
if (library.libvlc_event_attach(media_player_event_manager, m_Events[event_index++], m_EventManagerEventCallback, IntPtr.Zero) != 0)
throw new LibVLCException(library);
#endregion
}
else
{
library.libvlc_media_player_release(mp);
IntPtr m = library.libvlc_media_new_path(inst, filepath);
mp = library.libvlc_media_player_new_from_media(m);
//hook up the libvlc event listening
int event_index = 0;
IntPtr media_player_event_manager = library.libvlc_media_player_event_manager(mp);
LibVLCLibrary.libvlc_callback_t m_EventManagerEventCallback = EventManager_Event;
while (event_index < m_Events.Length)
if (library.libvlc_event_attach(media_player_event_manager, m_Events[event_index++], m_EventManagerEventCallback, IntPtr.Zero) != 0)
throw new LibVLCException(library);
}
//configure time tracking
TimeSpan time = new TimeSpan(0, 0, 0);
TimeSpan step = new TimeSpan(0, 0, secondStep);
//wait until VLC is playing
signalPlaying = new SemaphoreSlim(0, 1);
/* play the media_player */
int successCode = library.libvlc_media_player_play(mp);
signalPlaying.Wait();
if (errorOccured)
{
string errormsg = library.libvlc_errmsg();
throw new Exception("libvlc_MediaPlayerEncounteredError error: " + errormsg ?? "unknown error... ah crap.");
}
endReached = false;
stopped = false;
int thumbnailHeight = -1;
long trackLength = library.libvlc_media_player_get_length(mp);
//while there's still video left, collect screenshots
while (endReached != true && stopped != true)
{
//if we're flagged to cancel, exit out.
if (State == GeneratorState.Cancelling)
return;
//take screenshot
string fileName = time.TotalSeconds + ".jpg";
string thumbnailFullPath = Path.Combine(thumbnailDir, fileName);
int result = -1;
do
{
if (endReached)
break;
//if we're flagged to cancel, exit out.
if (State == GeneratorState.Cancelling)
return;
int tryCount = 3;
bool successfulSnapshot = false;
Exception error = null;
do
{
try
{
//if we're flagged to cancel, exit out.
if (State == GeneratorState.Cancelling)
return;
successfulSnapshot = false;
result = library.libvlc_video_take_snapshot(mp, 0, thumbnailFullPath, (uint)thumbnailWidth, 0);
successfulSnapshot = true;
}
catch (Exception ex)
{
tryCount--;
error = ex;
}
}
while (!successfulSnapshot && tryCount > 0);
if (null != error && tryCount == 0)
{
throw error;
}
}
while (false == File.Exists(thumbnailFullPath));
if (result == 0)
{
mediaScribeServer.PushMessage(time.TotalSeconds.ToString().PadLeft(6, '0') + " " + fileName);
//Thread.Sleep(70);
}
//increment the time
time += step;
//signalPosChanged.Reset();
library.libvlc_media_player_set_time(mp, (long)time.TotalMilliseconds);
if (library.libvlc_media_player_get_state(mp) == LibVLCLibrary.libvlc_state_t.libvlc_Playing)
library.libvlc_media_player_pause(mp);
if (library.libvlc_media_player_get_time(mp) > trackLength)
return;
if (endReached)
return;
}
}
//==========================================================================
public MediaPlayer(LibVLCLibrary library, Instance instance)
{
if (library != null)
{
if (instance != null)
{
if (instance.Library != library)
{
throw new ArgumentException("The provided instance has not been created with the provided library!", "instance");
}
}
}
if (instance != null)
{
if (library == null)
{
library = instance.Library;
}
}
if (library == null)
{
m_Library = LibVLCLibrary.Load(null);
m_IsLibraryOwner = true;
}
else
{
m_Library = library;
m_IsLibraryOwner = false;
}
try
{
if (instance == null)
{
m_Instance = new Instance(m_Library);
m_IsInstanceOwner = true;
}
else
{
m_Instance = instance;
m_IsInstanceOwner = false;
}
try
{
m_MediaPlayerHandle = CreateHandle();
}
catch
{
if (m_IsInstanceOwner)
{
m_Instance.Dispose();
}
m_Instance = null;
throw;
}
}
catch
{
if (m_IsLibraryOwner)
{
LibVLCLibrary.Free(m_Library);
}
m_Library = null;
throw;
}
}
//==========================================================================
internal SubtitleTrack(int index, LibVLCLibrary.libvlc_track_description_t trackDescription, LibVLCLibrary.libvlc_media_track_info_t? trackInfo)
: base(index, trackDescription, trackInfo)
{
// ...
}
