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CONTENT
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- Content .- Fans (4) .- Knowledge Base  . 

VLC-Qt library

   0.8.1  

Qt Development Tool

Score 54%
ntadejntadej
VLC-Qt library
zoom

Homepage:  http://projects.tano.si
Link:  Link
Issue Tacker:  Link
Downloads:  4705
Submitted:  Oct 14 2010
Updated:  Apr 27 2013

Description:

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 developement.

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

VLC-Qt runs on Linux and Windows, other operating systems are currently not supported.

Official builds available for:
- Windows
- Ubuntu
- ArchLinux
- OpenSUSE (community)

GitHub project:
https://github.com/ntadej/vlc-qt




Changelog:

0.8.1 (2013-04-27)
* Autodetect Qt4 or Qt5
* Restored MinGW support
* Windows SDK updated to Qt 5.0.2 and VLC 2.0.6 with release and debug builds




License: LGPL
(Download page with links for all platforms)
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-
.

 double click event in windows 7 x64

 
 by realaxd on: Feb 26 2013  
Score 50%
realaxdrealaxd

Hello. I use qt5 and os windows 7. When I run video on a widget video, it is impossible to get an "double click" event. When the video stopped event works. Can you help?


Reply to this

-
.

 I can't compile codes with library version 0.8.

 
 by youyi on: Mar 7 2013  
Score 50%
youyiyouyi

Thanks for your library! I have installed your library v0.8.
But I could not compile my codes with your library v0.8. And the demo does not match for library v0.8.

There is aways an error when i compile codes:
mainwindow.o: In function `MainWindow::MainWindow(QWidget*)':
mainwindow.cpp:(.text+0x1f1): undefined reference to `VlcWidgetVideo::VlcWidgetVideo(QWidget*)'

Could you please help me? Thank you in advance!


Reply to this

-

 release build Windows

 
 by novosprotos on: Mar 26 2013  
Score 50%
novosprotosnovosprotos

Hi,

thank you for this nice library, it really saves some time using libvlc in Qt ;-)
My setup is as follows:

Win7 (32bit)
Visual Studio 2010
libvlc 2.0.5 (Twoflower)
CMake 2.8.10.2

I was able to build and use the debug version of the library using VS2010:
First, I proceed according to the README with

Compilation
-----------
$ mkdir build
$ cd build
$ cmake .. -DCMAKE_INSTALL_PREFIX=prefix

But for the last step, I use the generated VS2010 vlc-qt.sln to compile and build the library. And instead of using

Installation
------------
$ make install

I again use VS2010 (project INSTALL) to install the library. Works like a charm.

However, when I build the release version I end up with run-time errors in VS2010. If I accidentaly use the debug version (due to my setup/paths) it gives me an error of type "Create QApplication before creating any widgets". With the release version of vlc-qt I end up with a segmentation error. I have no idea why. Interestingly, when I use the .dlls provdided with the download, it works... :D

Any help would be appreciated.
Kind regards,
Lukas


Reply to this

-

 Re: release build Windows

 
 by ntadej on: Mar 26 2013  
Score 63%
ntadejntadej

Try generating Nmake files directly with CMake. I build that way.


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-

 Re: Re: release build Windows

 
 by novosprotos on: Mar 27 2013  
Score 50%
novosprotosnovosprotos

Hi Tadej,

thanks for the hint!

So I created NMake files directly using CMake:

cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=..\..\build_RELEASE ..

followed by

nmake

and

nmake install

I still end up with an access violation...any more ideas? ;-)

Kind regards,
Lukas


Reply to this

-

 Re: Re: Re: release build Windows

 
 by ntadej on: Mar 29 2013  
Score 50%
ntadejntadej

Are you using libvlc from here: https://code.google.com/p/vc-libvlc/? There may be issues with libs, distributed with VLC.


Reply to this

-

 Re: Re: release build Windows

 
 by novosprotos on: Apr 2 2013  
Score 50%
novosprotosnovosprotos

Hi Tadej,

thanks for the hint!

So I created NMake files directly using CMake:

cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=..\..\build_RELEASE ..

followed by

nmake

and

nmake install

I still end up with an access violation...any more ideas? ;-)

Kind regards,
Lukas


Reply to this

-

 Re: Re: Re: release build Windows

 
 by ntadej on: Apr 2 2013  
Score 50%
ntadejntadej

Does using libvlc.lib from link provided before help? I use MSVC 2010 with precompiled Qt.


Reply to this

-

 Re: Re: Re: Re: release build Windows

 
 by novosprotos on: Apr 15 2013  
Score 50%
novosprotosnovosprotos

Sorry for reposting, had the last post saved in my browser cache ;-)


Reply to this

-

 Re: Re: Re: Re: Re: release build Windows

 
 by novosprotos on: Apr 15 2013  
Score 50%
novosprotosnovosprotos

Yes I tried it with no avail. I think there might be another problem with my setup (combination of libraries)....


Reply to this

-

 Re: Re: release build Windows

 
 by novosprotos on: Apr 15 2013  
Score 50%
novosprotosnovosprotos

Hi Tadej,

thanks for the hint!

So I created NMake files directly using CMake:

cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=..\..\build_RELEASE ..

followed by

nmake

and

nmake install

I still end up with an access violation...any more ideas? ;-)

Kind regards,
Lukas


Reply to this

-

 Re: Re: Re: release build Windows

 
 by novosprotos on: Apr 15 2013  
Score 50%
novosprotosnovosprotos

Please ignore the repost.


Reply to this

-

 Re: Re: release build Windows

 
 by novosprotos on: Apr 15 2013  
Score 50%
novosprotosnovosprotos

Hi Tadej,

thanks for the hint!

So I created NMake files directly using CMake:

cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=..\..\build_RELEASE ..

followed by

nmake

and

nmake install

I still end up with an access violation...any more ideas? ;-)

Kind regards,
Lukas


Reply to this

-

 Re: Re: Re: release build Windows

 
 by novosprotos on: Apr 15 2013  
Score 50%
novosprotosnovosprotos

Please ignore the repost.


Reply to this

-

 Re: Re: Re: release build Windows

 
 by ntadej on: Apr 20 2013  
Score 50%
ntadejntadej

Sorry for the late reply.

I currently don't have to debug this specific issue. I build with MSVC 2010 Express using the libvlc.lib from the link from my previous comment.


Reply to this

-

 Re: Re: Re: Re: release build Windows

 
 by ntadej on: Apr 20 2013  
Score 50%
ntadejntadej

Don't have time*


Reply to this

-

 MinGW build under Windows 7

 
 by novosprotos on: Apr 23 2013  
Score 50%
novosprotosnovosprotos

Is it possible to build the library under Windows 7 for MinGW?

I used Qt command prompt (4.8.0 and 4.8.1) and both times received an error concerning core.obj:

[code]

Setting up environment for Qt usage...

C:\libraries\libvlc-qt-0.8.0_src>mkdir build

C:\libraries\libvlc-qt-0.8.0_src>cd build

C:\libraries\libvlc-qt-0.8.0_src\build>cmake .. -G "MinGW Makefiles" -DCMAKE_INS
TALL_PREFIX="C:\libraries\libvlc-qt-0.8.0_src\build_MinGW_DEBUG" -DCMAKE_BUILD_T
YPE=Debug
VLC-Qt: Build with Widgets: ON
VLC-Qt: Build with QML: OFF
VLC-Qt: Build with Qt5: OFF
-- Found LibVLC include-dir path: C:/Program Files/VideoLAN/VLC/sdk/include
-- Found LibVLC library path:C:/Program Files/VideoLAN/VLC/libvlc.dll

VLC-Qt: You are compiling libvlc-qt 0.8.0


VLC-Qt: Build tests: OFF

-- Configuring done
-- Generating done
-- Build files have been written to: C:/libraries/libvlc-qt-0.8.0_src/build

C:\libraries\libvlc-qt-0.8.0_src\build>mingw32-make
"C:\Program Files\CMake 2.8\bin\cmake.exe" -HC:\libraries\libvlc-qt-0.8.0_src -B
C:\libraries\libvlc-qt-0.8.0_src\build --check-build-system CMakeFiles\Makefile.
cmake 0
"C:\Program Files\CMake 2.8\bin\cmake.exe" -E cmake_progress_start C:\libraries\
libvlc-qt-0.8.0_src\build\CMakeFiles C:\libraries\libvlc-qt-0.8.0_src\build\CMak
eFiles\progress.marks
mingw32-make -f CMakeFiles\Makefile2 all
mingw32-make[1]: Entering directory `C:/libraries/libvlc-qt-0.8.0_src/build'
mingw32-make -f src\core\CMakeFiles\vlc-qt_automoc.dir\build.make src/core/CMake
Files/vlc-qt_automoc.dir/depend
mingw32-make[2]: Entering directory `C:/libraries/libvlc-qt-0.8.0_src/build'
"C:\Program Files\CMake 2.8\bin\cmake.exe" -E cmake_depends "MinGW Makefiles" C:
\libraries\libvlc-qt-0.8.0_src C:\libraries\libvlc-qt-0.8.0_src\src\core C:\libr
aries\libvlc-qt-0.8.0_src\build C:\libraries\libvlc-qt-0.8.0_src\build\src\core
C:\libraries\libvlc-qt-0.8.0_src\build\src\core\CMakeFiles\vlc-qt_automoc.dir\De
pendInfo.cmake --color=
Scanning dependencies of target vlc-qt_automoc
mingw32-make[2]: Leaving directory `C:/libraries/libvlc-qt-0.8.0_src/build'
mingw32-make -f src\core\CMakeFiles\vlc-qt_automoc.dir\build.make src/core/CMake
Files/vlc-qt_automoc.dir/build
mingw32-make[2]: Entering directory `C:/libraries/libvlc-qt-0.8.0_src/build'
"C:\Program Files\CMake 2.8\bin\cmake.exe" -E cmake_progress_report C:\libraries
\libvlc-qt-0.8.0_src\build\CMakeFiles 25
[ 4%] Automoc for target vlc-qt
cd /d C:\libraries\libvlc-qt-0.8.0_src\build\src\core && "C:\Program Files\CMake
2.8\bin\cmake.exe" -E cmake_automoc C:/libraries/libvlc-qt-0.8.0_src/build/src/
core/CMakeFiles/vlc-qt_automoc.dir/
Generating moc_Audio.cpp
Generating moc_Instance.cpp
Generating moc_Media.cpp
Generating moc_MediaList.cpp
Generating moc_MediaListPlayer.cpp
Generating moc_MediaPlayer.cpp
Generating moc_Video.cpp
mingw32-make[2]: Leaving directory `C:/libraries/libvlc-qt-0.8.0_src/build'
"C:\Program Files\CMake 2.8\bin\cmake.exe" -E cmake_progress_report C:\libraries
\libvlc-qt-0.8.0_src\build\CMakeFiles 25
[ 4%] Built target vlc-qt_automoc
mingw32-make -f src\core\CMakeFiles\vlc-qt.dir\build.make src/core/CMakeFiles/vl
c-qt.dir/depend
mingw32-make[2]: Entering directory `C:/libraries/libvlc-qt-0.8.0_src/build'
"C:\Program Files\CMake 2.8\bin\cmake.exe" -E cmake_progress_report C:\libraries
\libvlc-qt-0.8.0_src\build\CMakeFiles 2
[ 8%] Generating qrc_logo.cxx
cd /d C:\libraries\libvlc-qt-0.8.0_src\build\src\core && C:\QtSDK\Desktop\Qt\4.8
.0\mingw\bin\rcc.exe -name logo -o C:/libraries/libvlc-qt-0.8.0_src/build/src/co
re/qrc_logo.cxx C:/libraries/libvlc-qt-0.8.0_src/data/logo.qrc
"C:\Program Files\CMake 2.8\bin\cmake.exe" -E cmake_progress_report C:\libraries
\libvlc-qt-0.8.0_src\build\CMakeFiles 1
[ 12%] Generating ../platform/windows/core.obj
cd /d C:\libraries\libvlc-qt-0.8.0_src\src\platform\windows && C:\QtSDK\mingw\bi
n\windres.exe -i C:/libraries/libvlc-qt-0.8.0_src/src/platform/windows/core.rc -
o C:/libraries/libvlc-qt-0.8.0_src/build/src/platform/windows/core.obj
C:\QtSDK\mingw\bin\windres.exe: C:/libraries/libvlc-qt-0.8.0_src/build/src/platf
orm/windows/core.obj: No such file or directory
mingw32-make[2]: *** [src/platform/windows/core.obj] Error 1
mingw32-make[2]: Leaving directory `C:/libraries/libvlc-qt-0.8.0_src/build'
mingw32-make[1]: *** [src/core/CMakeFiles/vlc-qt.dir/all] Error 2
mingw32-make[1]: Leaving directory `C:/libraries/libvlc-qt-0.8.0_src/build'
mingw32-make: *** [all] Error 2

C:\libraries\libvlc-qt-0.8.0_src\build>

[/code]

Any ideas? ;-)

Cheers,
Lukas


Reply to this

-

 Re: MinGW build under Windows 7

 
 by ntadej on: Apr 23 2013  
Score 50%
ntadejntadej

In src/core/CMakeFiles.txt find reference to core.rc (or core.obj) and remove it. I forgot to add mingw support for resources but you don't really need that file.


Reply to this

-

 Re: Re: MinGW build under Windows 7

 
 by novosprotos on: Apr 24 2013  
Score 50%
novosprotosnovosprotos

Thanks Tano!
I removed the whole MinGW section for core.rc/core.obj and had to do the same (later on the build process) for widgets.rc/widgets.obj.

The build was successful. Does it not matter if those build targets are missing?

Best wishes,
Lukas


Reply to this

-

 Re: Re: Re: MinGW build under Windows 7

 
 by novosprotos on: Apr 24 2013  
Score 50%
novosprotosnovosprotos

small follow-up: Had to remove zlib1.dll from /windows/cmake_install.cmake


Reply to this

-

 Re: Re: Re: MinGW build under Windows 7

 
 by ntadej on: Apr 24 2013  
Score 50%
ntadejntadej

They just contain some meta information (version, description ...). I'll try to update mingw support as soon as I find time :)


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