vlc-qt/examples

VLC-Qt Examples

VLC-Qt Library

VLC-Qt is a free library used to connect Qt and libVLC libraries. It contains core classes for main media playback and also some GUI classes for faster media player development.

VLC-Qt runs on supported versions of Linux, macOS and Windows. It is developed in cross-platform spirit so it may work on other systems but is not supported.

VLC-Qt 1.1 Qt/VLC versions deprecation warning

Since 1.1 release, support for some older Qt and VLC versions will be removed or deprecated:

• Qt 4 support will be deprecated and removed in 2.0
• Qt 5 lower than 5.5 will be deprecated and removed in 2.0
• libVLC 2.1 will be required

Binaries and source code

You can download VLC-Qt binaries and sources from the official web page or GitHub releases.

Latest source is also available via Git:

  git clone git://github.com/vlc-qt/vlc-qt.git
  git submodule init
  git submodule update

Master branch is considered stable and working on all supported platforms. All development is made in branches. You can also find specific releases by browsing tags.

Examples and guides

VLC-Qt examples are now located in the examples repository.

All discussions that are not bug related can be made here. This is also a place where you can publish your guides.

Building and requirements

See How to build VLC-Qt.

Contributing

There are several ways to contribute to VLC-Qt:

• Report a bug
• Propose a new feature
• Submit a pull-request
• Write a guide

Copyright info

Copyright (C) 2010-2016 Tadej Novak

VLC-Qt is free (libre) software. This means that the library source code is available to public, anyone is welcome to research how the application works, participate in its development, freely distribute the application and spread the word!

This project may be used under the terms of the GNU Lesser General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE.md.

examples's Issues

.dlls missing when runnig .exe

When running the project out of Visual Studio (2015), it works great,
however, when I try to run the .exe, it complains about the following .dll files being missing
(libvlc.dll, libvlccore.dll, VLCQtCore.dll, VLCQtQml.dll, VLCQtWidgets.dll).

When I move those .dll files from the project folder to the release folder, and I run the .exe, nothing happens. When I then run the program from visual studio, it bugs out.

I couldn't find an already logged issue of this, and have not found a solution elsewhere either...

The code being used is from the simple-player example, under src.

cant see VlcWidgetVideo

hello
this is a slot i activate via qpushbutton:

void OPQWidgetOverload::openVideo()
{

    QDialog *holder = new QDialog(this);
    holder->resize(600,300);

    QString url = "rtsp://admin:[email protected]:554/cam/realmonitor?channel=1subtype=1";

    VlcWidgetVideo *video = new VlcWidgetVideo(holder);

    VlcInstance *_instance = new VlcInstance(VlcCommon::args(), this);
    VlcMediaPlayer *_player = new VlcMediaPlayer(_instance);
    _player->setVideoWidget(video);

    holder->show();

      VlcMedia *_media = new VlcMedia(url, _instance);
     _player->open(_media);

}

When i press the button that activates this slot i see the QDialog but the VlcWidgetVideo is not there and i cant see the stream ;(. Funny thing is if i dont set a VlcVideoWidget to _player, the direct3D stream is outputed in another window and i can see the video stream so i know that it exists. I cant figure out why i cant see the VlcWidgetVideo widget.

Does anyone know a fix about this problem?
Thanks in advance

When using the example on the Macos, the video is not full of widgets, and you need to stretch the window to return to normal

When using the example on the Macos, the video is not full of widgets, and you need to stretch the window to return to normal

Cannot compile vlc-qt example - syntax error

I cannot compile the vlc-qt code. I am trying to compile EquilizerDialog.cpp using Visual Studio 2010 and the Qt 5.6 plugin. The compiler chokes on the line:

for (QSlider *slider : findChildren<QSlider*>()) {

I have never seen a C++ for loop with a colon and no semicolons. It looks like incorrect syntax.

My compiler says:

1>EqualizerDialog.cpp(31): error C2143: syntax error : missing ',' before ':'
1>EqualizerDialog.cpp(31): error C2143: syntax error : missing ';' before '{'

I have no idea how to use cmake or what the project directory structure should be. I started a Visual Studio Qt project and added the example files and the windows stuff. Everything compiles except for that. I am a long time Visual Studio C++ programmer, but new to Qt and cmake.

Any assistance would be greatly appreciated. I can supply more details if needed.

how to get the media width and height

use player to play media. the player window is 640*480. the media is not full of window. how to get the media show width and height?

Stream filter example?

Is it possible to show via the examples how to implement a custom stream filter? (for sake of example, something simple like maybe the decomb filter @ https://github.com/videolan/vlc/blob/master/modules/stream_filter/decomp.c)

Just wondering how to do this, like if it needs changes at the vlc-qt level or it's already available to the application that uses that library

Thanks!

Example RTSP playback delay of 1 second or so

VLCQtCore/Common.h: No such file or directory

Hello there;

I cannot find the #include <VLCQtCore/Common.h> ??

QWidget: Must construct a QApplication before a QWidget #197

Hi,

I've installed the vlc-qt librarys and build the simple-player example, by using _MSVC2013_64bit-Debug.
When I try running it, I get the following error(application output):

Starting C:\Users\rshe\Downloads\examples-master\examples-master\build-simple-player-Desktop_Qt_5_6_2_MSVC2013_64bit-Debug\src\src\debug\simple-player.exe...
QWidget: Must construct a QApplication before a QWidget
C:\Users\rshe\Downloads\examples-master\examples-master\build-simple-player-Desktop_Qt_5_6_2_MSVC2013_64bit-Debug\src\src\debug\simple-player.exe exited with code 1
Compile Output:

13:04:58: Running steps for project simple-player...
13:04:58: Configuration unchanged, skipping qmake step.
13:04:59: Starting: "C:\Qt\Qt5.6.2\Tools\QtCreator\bin\jom.exe"
cd src\ && ( if not exist Makefile C:\Qt\Qt5.6.2\5.6\msvc2013_64\bin\qmake.exe C:\Qt\libvlc-qt\src\examples\simple-player\src\src.pro -spec win32-msvc2013 "CONFIG+=debug" "CONFIG+=qml_debug" -o Makefile ) && C:\Qt\Qt5.6.2\Tools\QtCreator\bin\jom.exe -f Makefile
C:\Qt\Qt5.6.2\Tools\QtCreator\bin\jom.exe -f Makefile.Debug
13:04:59: The process "C:\Qt\Qt5.6.2\Tools\QtCreator\bin\jom.exe" exited normally.
13:04:59: Elapsed time: 00:01.

I am running the app on Qt creator 5.6.2
I have also added path of all the vlc lib, msvc2013_64/bin to environment variables
I have also provided proper link to the libs
src.pro:

TARGET = simple-player
TEMPLATE = app
CONFIG += c++11

QT += widgets

SOURCES += main.cpp
SimplePlayer.cpp
EqualizerDialog.cpp

HEADERS += SimplePlayer.h
EqualizerDialog.h

FORMS += SimplePlayer.ui
EqualizerDialog.ui

INCLUDEPATH += C:\Qt\libvlc-qt\include

LIBS += -LC:\Qt\libvlc-qt\lib
-lVLCQtCore.lib
-lVLCQtWidgets.lib
Any hint on what I'm doing wrong?

Crash while running simple-player.exe

Crash while running the exe in visual studio 2019
Unhandled exception at 0x000000005928CBCE (libvlc.dll) in simple-player.exe: 0xC0000005: Access violation reading location

"QWidget: Must construct a QApplication before a QWidget" when using VlcWidgetVideo class

So I did it in 2 ways, one is to promote a QWidget to the VlcWidgetVideo with path VLCQtWidgets/WidgetVideo.h (I have already included the path in .pro). The other way is I initialize it dynamically in code

m_video = new VlcWidgetVideo(this);
ui->verticalLayout->addWidget(m_video);

Both gives me the same error when I launch the program,
QWidget: Must construct a QApplication before a QWidget
How do I solve this problem? I tried insert breakpoint in main.cpp and when m_video is constructed, QApplication is definitely constructed before m_video

Another thing to note is when I create VlcInstance, it gives me this warning:
QObject: Cannot create children for a parent that is in a different thread. (Parent is MainWindow(0x73fe00), parent's thread is QThread(0x1e41c7b8), current thread is QThread(0x1fbd3b08)
Is it because VLC-Qt is running on a different thread and that thread doesn't have QApplication?

I can also confirm I got the exact same error when I try the example SimplePlayer project

VlcMediaPlayer has no member named 'equalizer'

Hello, I am trying to run VLC on QT...I am facing error named error: 'class VlcMediaPlayer' has no member named 'equalizer'
auto equalizer = _mediaPlayer->equalizer();
^

QWidget: Must construct a QApplication before a QWidget

Hi,

I've successfully managed to install the library and to build the simple-player example, by using CMake.
When I try running it, I get the following error:

objc[69784]: Class NotificationReceiver is implemented in both /usr/local/opt/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets and /Users/aldur/Lavoro/vlc-qt-examples/simple-player/build/install_dir/simple-player.app/Contents/Frameworks/QtWidgets.framework/Versions/5/QtWidgets. One of the two will be used. Which one is undefined.
QWidget: Must construct a QApplication before a QWidget
[1]    69784 abort

Any hint on what I'm doing wrong?

GDB's backtrace:

QWidget: Must construct a QApplication before a QWidget

Program received signal SIGABRT, Aborted.
0x00007fff8b4e60ae in __pthread_kill () from /usr/lib/system/libsystem_kernel.dylib
(gdb) bt
#0  0x00007fff8b4e60ae in __pthread_kill () from /usr/lib/system/libsystem_kernel.dylib
#1  0x00007fff8c99f500 in pthread_kill () from /usr/lib/system/libsystem_pthread.dylib
#2  0x00007fff9290f37b in abort () from /usr/lib/system/libsystem_c.dylib
#3  0x0000000101ec23e9 in qt_message_fatal(QtMsgType, QMessageLogContext const&, QString const&) ()
   from /usr/local/opt/qt5/lib/QtCore.framework/Versions/5/QtCore
#4  0x0000000101ec3dd7 in QMessageLogger::fatal(char const*, ...) const ()
   from /usr/local/opt/qt5/lib/QtCore.framework/Versions/5/QtCore
#5  0x0000000101251dbc in QWidgetPrivate::QWidgetPrivate(int) ()
   from /usr/local/opt/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets
#6  0x00000001013561ee in QFrame::QFrame(QWidget*, QFlags<Qt::WindowType>) ()
   from /usr/local/opt/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets
#7  0x00000001006793a2 in VlcWidgetVideo::VlcWidgetVideo (this=0x10386c720, parent=0x10386bad0)
    at /Users/aldur/Lavoro/vlc-qt/src/widgets/WidgetVideo.cpp:56
#8  0x000000010067945d in VlcWidgetVideo::VlcWidgetVideo (this=0x10386c720, parent=0x10386bad0)
    at /Users/aldur/Lavoro/vlc-qt/src/widgets/WidgetVideo.cpp:58
#9  0x000000010000f3d6 in Ui_SimplePlayer::setupUi(QMainWindow*) ()
    at /usr/local/opt/qt5/lib/QtGui.framework/Headers/qpalette.h:188
#10 0x000000010000e033 in SimplePlayer::SimplePlayer(QWidget*) ()
    at /usr/local/opt/qt5/lib/QtGui.framework/Headers/qpalette.h:188
#11 0x000000010000eb4d in SimplePlayer::SimplePlayer(QWidget*) ()
    at /usr/local/opt/qt5/lib/QtGui.framework/Headers/qpalette.h:188
#12 0x000000010000349f in main () at /usr/local/opt/qt5/lib/QtGui.framework/Headers/qpalette.h:188
(gdb)

i get qt::quick not installed error eventhough it does exist

I am trying to implement qml-videoplayer example of this project using the following commands

mkdir build
cd build
cmake ..
make
cd src
./qml-player

qrc:/qml/video.qml:6:1: module "QtQuick" is not installed
is the error that i get

QML module not found (VLCQt) in Qt_5_12_2_MSVC2015_64bit Windows 10 and VlcQmlVideoPlayer is deprecated

Hi,

I am trying to integrate this VLCQt QML project but I am not able to recognize the library.

In the main.cpp I get the following warning on the "VlcQmlVideoPlayer::registerPlugin();":
VlcQmlVideoPlayer is deprecated

In the qml:
import VLCQt 1.1 //QML module not found (VLCQt)

Compiler and Qt:
Qt_5_12_2_MSVC2015_64bit

I downloaded VLC-Qt_1.1.0_win64_msvc2015 binaries and copied the content to my src/lib/vlcqt folder.

I also added to my \build-hmi-Desktop_Qt_5_12_2_MSVC2015_64bit-Debug\debug folder to be able to debug.

Please, has anyone managed to integrate the libraries without compiling the sources? I would be very grateful for an answer or a clear example, we have planned a project thinking about this utility and we have been several days without being able to advance, we do not have much experience integrating external libraries.

Thank you very much.

These are my source files:

hmi.pro

LIBS += -lVLCQtCore -lVLCQtQML
win32:CONFIG(release, debug|release): LIBS += -L$$PWD/lib/vlcqt/lib/ -lVLCQtCore -lVLCQtQML
else:win32:CONFIG(debug, debug|release): LIBS += -L$$PWD/lib/vlcqt/lib/ -lVLCQtCored -lVLCQtQML
INCLUDEPATH += $$PWD/lib/vlcqt/include
DEPENDPATH += $$PWD/lib/vlcqt/include

main.cpp

#include <VLCQtCore/Common.h>
#include <VLCQtQml/QmlVideoPlayer.h>

int main(int argc, char *argv[])
{
    QQmlDebuggingEnabler enabler;
    QGuiApplication app(argc, argv);

    VlcCommon::setPluginPath(app.applicationDirPath() + "/plugins");
    VlcQmlVideoPlayer::registerPlugin();

    return app.exec();
}

widget.qml

import QtQuick 2.0
import VLCQt 1.1  //Creator shows an error here: QML module not found (VLCQt)

Item {
    VlcVideoPlayer {
        id: vidwidget
        anchors.fill: parent
        url: "https://movietrailers.apple.com/movies/paramount/the-contractor/the-contractor-trailer-1_h720p.mov"
    }
}

How to add network caching to qml-player

I have successfully built and run QML Player.

I would like to set the network-caching option which is from the VlcMedia.

I have created a pointer of VlcMedia and want to call it in VlcVideoPlayer of (video.qml)

below is the code

main.cpp

#include <QtCore/QCoreApplication>
#include <QtGui/QGuiApplication>
#include <QtQuick/QQuickView>

#include <VLCQtCore/Common.h>
#include <VLCQtQml/QmlVideoPlayer.h>

#include <VLCQtCore/Media.h>

int main(int argc, char *argv[])
{
    QCoreApplication::setApplicationName("VLC-Qt QML Player");
    QCoreApplication::setAttribute(Qt::AA_X11InitThreads);

    QGuiApplication app(argc, argv);
    VlcCommon::setPluginPath(app.applicationDirPath() + "/plugins");
    VlcQmlVideoPlayer::registerPlugin();

    QQuickView quickView;
    quickView.setSource(QUrl(QStringLiteral("qrc:/qml/video.qml")));    
    quickView.setResizeMode(QQuickView::SizeRootObjectToView);
    quickView.show();

    VlcMedia* media;
    media->setOption(QString(QStringLiteral("qrc:/qml/video.qml")));
    //media->setOption(":network-caching=200");

    return app.exec();
}

video.qml

import QtQuick 2.0
import VLCQt 1.0 
//import VLC-Qt_1.0.1_win64_msvc2013.include.VLCQtCore.Media 1.0

Rectangle {
    width: 640
    height: 480
    color: "black"

    VlcVideoPlayer {
        id: vidwidget
        anchors.fill: parent

        url: "rtsp://admin:[email protected]:554/cam/realmonitor?channel=1&subtype=0&unicast=true"
        String: ":network-caching=300"
    }
}

The build is sucessfull but there is a debug error

can someone tell me where am i going wrong

Segmentation fault with VLC QT qml player

I successfully built the vls-qt qml player application. When i am launching segmentation fault is happen.

How to use VLC effects, transformations and rotations in this sample-player?

I tried adding arguments like "--transform {90}" to the QStringList and pass it to VlcInstance, but I am getting

VLC-Qt Error: libvlc failed to load
The program has finished unexpectedly

What is the correct way of applying effects and transformations to the video stream or to the VLC instance?

My first goal is to just rotate the video during playback, and later on I would like to use more effects that are available on VLC.

File format not recognized (crt2.o)

Hi,
I have successfully built the qml and simple players but when I run the players, I will get the following error:
C:\Qt\Qt5.14.0\Tools\mingw730_32\i686-w64-mingw32\lib\crt2.o:-1: error: file not recognized: File format not recognized

How I can fix that?
Thanks

use qml to play local file error

like the example(qml-player), url use local file:
VlcVideoPlayer {
id: vidwidget
anchors.fill: parent
url: "file:///C:/Export/114225.mp4"
}
but play error, message is "No such file or directory", how to solve this problem??

Google Drive link broken

https://travis-ci.org/probonopd/examples/jobs/300601421#L1177

curl -LO "https://googledrive.com/host/0B7I7Zg8w-HxRfmxSMmdhM3dTMGJnSklRX1c4ZkxmekJkcFplYnRLTU80R3Znd1VITkNueGs/vlc-qt_linux_examples.tar.bz2"

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1668  100  1668    0     0  49521      0 --:--:-- --:--:-- --:--:-- 50545

tar xf vlc-qt_linux_examples.tar.bz2

bzip2: (stdin) is not a bzip2 file.

Adjusting aspect ratio and stretching screen in simple-player example

I got the simple-player to work. Thanks for your help. The video does not fill up the window. I have tried to set the aspect ratio, but it doesn't seem to have any effect. I am wondering how to control the size of the video display so it will extend to the left and right edges of the screen, much like the vlc.exe player does. Also wondering how to turn of sub-titles

Thanks

joehellesen

how to build and run qml-player

I have successfully built and run simple-player.

I would like to run the qml-player. As there is no .pro file to execute in (https://github.com/vlc-qt/examples/tree/master/qml-player) I created my own project and copied main.cpp to the sources of my project and video.qml of (https://github.com/vlc-qt/examples/tree/master/qml-player/src/qml) to main.qml of my project.

project name

video

This is how my

video.pro looks:

TEMPLATE = app
QT += qml quick
CONFIG += c++11
SOURCES += main.cpp
RESOURCES += qml.qrc

INCLUDEPATH += "C:\Users\rshe\Desktop\Qt projects\VLC-Qt_1.0.1_win64_msvc2013\include"

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH = "C:\Users\rshe\Desktop\Qt projects\VLC-Qt_1.0.1_win64_msvc2013\bin"

# Default rules for deployment.
include(deployment.pri)

main.cpp

#include <QtCore/QCoreApplication>
#include <QtGui/QGuiApplication>
#include <QtQuick/QQuickView>

#include <VLCQtCore/Common.h>
#include <VLCQtQml/QmlVideoPlayer.h>

int main(int argc, char *argv[])
{
    QCoreApplication::setApplicationName("VLC-Qt QML Player");
    QCoreApplication::setAttribute(Qt::AA_X11InitThreads);

    QGuiApplication app(argc, argv);
    VlcCommon::setPluginPath(app.applicationDirPath() + "/plugins");
    VlcQmlVideoPlayer::registerPlugin();

    QQuickView quickView;
    quickView.setSource(QUrl(QStringLiteral("qrc:/qml/video.qml")));
    quickView.setResizeMode(QQuickView::SizeRootObjectToView);
    quickView.show();

    return app.exec();
}

main.qml

import QtQuick 2.0
import QtQuick.Window 2.2
import VLCQt 1.0

Rectangle {
    width: 640
    height: 480
    color: "black"

    VlcVideoPlayer {
        id: vidwidget
        anchors.fill: parent
        url: "rtsp://admin:[email protected]:554/cam/realmonitor?channel=1&subtype=0&unicast=true"
    }
}

the proble is with the import VLCQt 1.0 it says qml module not found

When i build i get this three errors:

main.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) bool __cdecl VlcCommon::setPluginPath(class QString const &)" (__imp_?setPluginPath@VlcCommon@@YA_NAEBVQString@@@Z) referenced in function main

main.obj:-1: error: LNK2019: unresolved external symbol "__declspec(dllimport) public: static void __cdecl VlcQmlVideoPlayer::registerPlugin(void)" (__imp_?registerPlugin@VlcQmlVideoPlayer@@SAXXZ) referenced in function main

debug\video.exe:-1: error: LNK1120: 2 unresolved externals

Can anyone help what am I missing.

Thanks in advance.

QWidget: Must construct a QApplication before a QWidget

I get this error when trying to run the example:

QWidget: Must construct a QApplication before a QWidget

build simple player on windows

I'm having the following issue:
When compiling simple player under windows environment i do:
cd simple-player
mkdir build
cd build
cmake ..
This is the output i get:

CMake Error at CMakeLists.txt:60 (FIND_PACKAGE): By not providing "FindVLCQt.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "VLCQt", but CMake did not find one. Could not find a package configuration file provided by "VLCQt" with any of the following names: VLCQtConfig.cmake vlcqt-config.cmake Add the installation prefix of "VLCQt" to CMAKE_PREFIX_PATH or set "VLCQt_DIR" to a directory containing one of the above files. If "VLCQt" provides a separate development package or SDK, be sure it has been installed.

It seems there is a problem with the FindLIBVLCQT under the folder simple-player\cmake

Simple Player Segmentation Fault while creating VlcInstance()

Hi everybody,

I got a problem while trying the Simple Player example

I’m using

• Linux = Ubuntu 14.04 (64-bit)
• Qt = ver 5.7
• VLC-Qt = Latest (git cloned current version by https://github.com/vlc-qt/vlc-qt and succesfully built following the instructions)
• LibVLC version 0x020200 (automatically detected by VLC-Qt CMake)

I have been able to build the Simple-Player example using CMake but when I run it I get a Segmentation Fault on the following line

_instance = new VlcInstance(VlcCommon::args(), this);
https://github.com/vlc-qt/examples/blob/master/simple-player/src/SimplePlayer.cpp#L27

Please find the gdb bt result below

Any idea ?

Thank You

Program received signal SIGSEGV, Segmentation fault.
0x00007fffe4532dfc in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
(gdb) bt
#0  0x00007fffe4532dfc in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#1  0x00007ffff7dea13a in call_init (l=<optimized out>, argc=argc@entry=1, argv=argv@entry=0x7fffffffe398, env=env@entry=0x671120) at dl-init.c:78
#2  0x00007ffff7dea223 in call_init (env=<optimized out>, argv=<optimized out>, argc=<optimized out>, l=<optimized out>) at dl-init.c:36
#3  _dl_init (main_map=main_map@entry=0x832720, argc=1, argv=0x7fffffffe398, env=0x671120) at dl-init.c:126
#4  0x00007ffff7deec70 in dl_open_worker (a=a@entry=0x7fffffffd7e8) at dl-open.c:577
#5  0x00007ffff7de9ff4 in _dl_catch_error (objname=objname@entry=0x7fffffffd7d8, errstring=errstring@entry=0x7fffffffd7e0, 
    mallocedp=mallocedp@entry=0x7fffffffd7d0, operate=operate@entry=0x7ffff7dee9a0 <dl_open_worker>, args=args@entry=0x7fffffffd7e8) at dl-error.c:187
#6  0x00007ffff7dee3bb in _dl_open (file=0x81ee10 "/usr/lib/vlc/plugins/gui/libqt4_plugin.so", mode=-2147483647, caller_dlopen=<optimized out>, 
    nsid=-2, argc=1, argv=0x7fffffffe398, env=0x671120) at dl-open.c:661
#7  0x00007ffff2b8d02b in dlopen_doit (a=a@entry=0x7fffffffda00) at dlopen.c:66
#8  0x00007ffff7de9ff4 in _dl_catch_error (objname=0x62b560, errstring=0x62b568, mallocedp=0x62b558, operate=0x7ffff2b8cfd0 <dlopen_doit>, 
    args=0x7fffffffda00) at dl-error.c:187
#9  0x00007ffff2b8d62d in _dlerror_run (operate=operate@entry=0x7ffff2b8cfd0 <dlopen_doit>, args=args@entry=0x7fffffffda00) at dlerror.c:163
#10 0x00007ffff2b8d0c1 in __dlopen (file=<optimized out>, mode=<optimized out>) at dlopen.c:87
#11 0x00007ffff20022ef in ?? () from /usr/lib/libvlccore.so.8
#12 0x00007ffff1fe789b in ?? () from /usr/lib/libvlccore.so.8
#13 0x00007ffff1fe7b7b in ?? () from /usr/lib/libvlccore.so.8
#14 0x00007ffff1fe7ac4 in ?? () from /usr/lib/libvlccore.so.8
#15 0x00007ffff1fe8029 in ?? () from /usr/lib/libvlccore.so.8
#16 0x00007ffff1fe8567 in ?? () from /usr/lib/libvlccore.so.8
#17 0x00007ffff1f6f29d in libvlc_InternalInit () from /usr/lib/libvlccore.so.8
#18 0x00007ffff2261483 in libvlc_new () from /usr/lib/libvlc.so.5
#19 0x00007ffff627b4fb in VlcInstance::VlcInstance (this=0x6b6fa0, args=..., parent=0x7fffffffe240)
    at /data/Various/Qt/VLC-Qt/VLCQt_Lib/vlc-qt/src/core/Instance.cpp:91
#20 0x000000000041a4c1 in SimplePlayer::SimplePlayer (this=0x7fffffffe240, parent=0x0)
    at /data/Various/Qt/VLC-Qt/VLC-Qt_Examples/examples-master/simple-player/src/SimplePlayer.cpp:27
#21 0x0000000000412604 in main (argc=1, argv=0x7fffffffe398) at /data/Various/Qt/VLC-Qt/VLC-Qt_Examples/examples-master/simple-player/src/main.cpp:22