VLCThumbnailer: Fix error detection

src/metadata_services/vlc/VLCThumbnailer.cpp

@@ -144,13 +144,10 @@ void VLCThumbnailer::run(std::shared_ptr<Media> file, void *data )
 
 bool VLCThumbnailer::startPlayback(std::shared_ptr<Media> file, VLC::MediaPlayer &mp, void* data )
 {
-    bool failed = true;
-
     std::unique_lock<std::mutex> lock( m_mutex );
 
-    mp.eventManager().onPlaying([this, &failed]() {
+    mp.eventManager().onPlaying([this]() {
         std::unique_lock<std::mutex> lock( m_mutex );
-        failed = false;
         m_cond.notify_all();
     });
     mp.eventManager().onEncounteredError([this]() {
@@ -159,9 +156,10 @@ bool VLCThumbnailer::startPlayback(std::shared_ptr<Media> file, VLC::MediaPlayer
     });
     mp.play();
     bool success = m_cond.wait_for( lock, std::chrono::seconds( 3 ), [&mp]() {
-        return mp.state() == libvlc_Playing || mp.state() == libvlc_Error;
+        auto s = mp.state();
+        return s == libvlc_Playing || s == libvlc_Error || s == libvlc_Ended;
     });
-    if ( success == false || failed == true )
+    if ( success == false || mp.state() == libvlc_Error || mp.state() == libvlc_Ended )
     {
         // In case of timeout or error, don't go any further
         m_cb->done( file, Status::Error, data );