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Got it installed using the mediafire package provided below in this group. But, now I'm getting this.

Not clear why each of the different type of video files turns out orange with Ok grayed out? Tried countless files and file types.

In the terminal, I see this:

Reading info for file /home/matt/Dropbox//fists.mp4.
output :  ""
Could not find size.
Reading info for file /home/matt/Dropbox//fists.mp4.
output :  ""
Could not find size.
Valery Brasseur (vald70)'s profile photoMatt Hartley's profile photo
Did a clean install (home is a dedicated drive, so it was fine), ran avplay and the file played fine. Installed the deb package again and this time it's good. Going with 15.04 seemed to be the better bet. Thanks! :)
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Florent Skirlo

General Discussion  - 
Alors voilà moi je fais des vidéos avec une GoPro donc voilà n'hésitez pas à aller voir les vidéos à aimer et à vous Abonnées ;)
 ·  Translate
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General Discussion  - 
hello everyone .
I'm using slowmo in my case to generate motion vectors that I'm using for other purpose than retiming or motionblur.
so far so good I can generate the flow with slowmoFlowBuilder and convert the flowdata to a bitmap using slowmoVisualizeFlow.
I'm used to twixtor that encodes the vectors around 0.5 in R and G channels and use a normalizing value for the length of the vector.
How does slowmo encodes motionvectors ?
the B channel seems to represent the length of the vector..
is it possible to know how it's done ?
thanks in advance and kudos for this wonderful software.
I'm on Ubuntu 12.04 LTS using the build from the ppa.
thanks in advance
lulutreizequinze's profile photoValery Brasseur (vald70)'s profile photo
+lulutreizequinze from what I remember, you should make a linear interpolation between the 2 frames, I should have a link which explain better  somewhere if I find it ;-)
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I am trying to install slomoVideo on Ubuntu Vivid 15.04 and I am getting this error message: "Dependency is not satisfiable: libavcodec53 (>=|libavcodec-extra-53 (>=". Has anyone been able to install it on vivid yet?
pedro paulo's profile photoMatt Hartley's profile photo
I too, appreciate the package. Now my problem is regardless of what video file or type I choose for input source, it's in orange and Ok is grayed out. What am I doing wrong? I cannot find any troubleshooting documentation for this.
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This may be an impossible taks, but I've been trying to get slowmovideo to work on linux mint 17 all day and I keep coming up against two problems. When I try to use the .deb package it says it can't install due to needing libavcodec-extra-53 and I can't figure out how to install that for the life of me. On the other side, when I try to compile it with the instructions on the website, it exits with error code 2 everytime. And just adding the repository and using apt-get to install it just says it can't find the repository. Any ideas?
Valery Brasseur (vald70)'s profile photoJack Hallowatt's profile photo
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Mark Furneaux

General Discussion  - 
I managed to compile on Ubuntu 14.04, but I cannot import any type of video file (MP4, AVI, MKV...), the output is always:

Reading info for file /media/mark/storage/Videos/ActionCam/ACTP0005.MOV.
output :  "" 
Could not find size.
Reading info for file /media/mark/storage/Videos/ActionCam/ACTP0005.MOV.
output :  "" 
Could not find size.
Mark Furneaux's profile photoValery Brasseur (vald70)'s profile photo
+Mark Furneaux for nvidia, you could use software renderer by setting opencv in preferences.
as for previous point : well sad you have put ffmpeg before trying other thing
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First of all, I would like to say thanks for the great SlowmoVideo utility to the developer and all the people that is supporting development also.

Also I wonder if could be posible, that somebody that may be succeed in compiling and run SlowmoVideo in Ubuntu 14.04 64bits, if may pleasre share the deb binaries, by uploading then at some place able to downloads. I made attemps to compile but I have not enough skills to trace and sort the compile procces, so I ended making a side install of Ubuntu 12.04 only for run the old version available of SlowmoVideo for such ubuntu, but I would like to use the more recent and improved version.

If may be posible the binaries for Ubuntu 14.04 I would be very gratefull and sure that many other people that may have interest in use this great software.

Thanks for kind atention and best regards.

Valery Brasseur (vald70)'s profile photoJavier Segura's profile photo
Hi Valery! Thanks for the package and please excuse my delay in reply, I had some messy days with my work, so until today, I had chance to check package and install it. It installed fine and run Fine in my Kubuntu 14.04 amd64. However I just had the time to download and try the install that was succesfull and the program run fine and menus works, but didnt had time today, for made some tests, since I need to go out for a meeting, but everything seems working. I wolud test in the next days and would comment. Thank you so very much for this package and your kind attention in help and reply! Best regards! :-D
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Theo Nicolau

General Discussion  - 
I'm having the following issue building slowmovideo on Arch Linux:

/usr/bin/ld: CMakeFiles/slowmoFlowBuilder.dir/flowBuilder.cpp.o: undefined reference to symbol 'XCreateColormap'

any ideas?

Theo Nicolau's profile photo
Managed to compile it by adding -lX11 to MAKE_EXE_LINKER_FLAGS:STRING in build/CMakeCache.txt ... but I'm sure this is not the right way to do it...
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David Va

Development  - 
Hi +Valery Brasseur ,  I love slowmoVideo, but i have the next issues.
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About this community

This community is about the slow-motion program slowmoVIdeo:
Hi everyone!
I am using slomovideo on a ubuntu 15.04 64 bit system. Every now and then slomovideo crashes when I start the rendering. I have some crash reports I can provide. Would love to use slomovideo more often to render my IPhone Slowmotion videos.

kind regards

Valery Brasseur (vald70)'s profile photoTim Wernick's profile photo
+Valery Brasseur I've uploaded two crashreports to my private webspace. I will send you the link via hangouts. I've removed the base 64 encoded core dump as this made the files far too big.

Thanks in advance
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Ryan Š

Users  - 
Recent discoverer of the terrificness that is slowmoVideo.  Excellent work.  I do want to know if there's anyway to export a curve, and then run that against a video (or, twenty) in batch mode?  I poked around the docs on the site and google, but don't see anything about this functionality being available.   And if it's not, let me be the next person to request it be added!   

Thanks a bunch either way.
Valery Brasseur (vald70)'s profile photoSimon Eugster's profile photo
Wasn't the first request for batch mode, so, why not :)
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Thibault Durand

General Discussion  - 
I had slowmovideo on my last ubuntu, it was great! and after the upgrade to 14.04 32bit, no slowmo...
i'm trying to réinstall, i have the same problems that Nicolas here:
but it don't work,...some help please?
i have some problem at this point:
"tibs@TibsThink--Pad-T420:~/slowmoVideo/build$ cmake -DUSE_QTKIT=FALSE  -DENABLE_TESTS=FALSE
CMake Error: The source directory "/home/tibs/slowmoVideo/build" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI."

(sorry for my english... new french guy in computer world!)
Valery Brasseur (vald70)'s profile photoThibault Durand's profile photo
yes. slowmo works, i realise a new project, and at maybe 10% of the final, i have this error message!
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Jordan Abendroth

General Discussion  - 
Hi, I'm on windows 7 64 bit, and slowmovideo works great, but is there a way to force it to use all of my CPU, because it will only use about 25% at max (I have a dual core Sandy Bridge i3 with 4 virtual cores) also another issue that happens, is every time I close a project, and open it again, slowmovideo decides it has to extract every frame to the frames folder again, even though they are still there from the previous time, I'm using the most recent version of slowmovideo
Valery Brasseur (vald70)'s profile photoAditya Kamath's profile photo
+Valery Brasseur​ thank you bro! 😃😃
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Hello, im trying to compile slowmovideo in Arch Linux (Manjaro) using makepkg with a Pkgbuild, but the compile keeps stumbling in this error:

-- warning: NOT handled - not .app dir, not executable file...
CMake Error at /usr/share/cmake-3.2/Modules/BundleUtilities.cmake:851 (message):
  error: fixup_bundle: not a valid bundle
Call Stack (most recent call first):
  /home/user/Downloads/slomovideo/src/slowmoVideo/src/cmake/DeployQt5.cmake:199 (fixup_bundle)
  slowmoVideo/slowmoUI/cmake_install.cmake:62 (FIXUP_QT5_EXECUTABLE)
  cmake_install.cmake:41 (include)

Makefile:85: recipe for target 'install' failed
make: * [install] Error 1

I have no idea on how to fix this, any help would be appreciated
Valery Brasseur (vald70)'s profile photoJhonny Rosa's profile photo
sry for the silly question, but how to apply this patch?
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Anyone know how to fix "error code 5"?
Ben Allan's profile photoValery Brasseur (vald70)'s profile photo
can you post the debug log from console ?
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Why SlowMoVideo don't work in ubuntu 14.10?
Valery Brasseur (vald70)'s profile photo
could you be more specific ? what doesn't work for you ?
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Tobias Griebe

Development  - 
Hi there, 

I am having problems compiling for yosemite. 

Linking CXX executable
Undefined symbols for architecture x86_64:
  "_NSClassFromString", referenced from:
      MacNotificationHandler::showNotification(QString const&, QString const&) in
      MacNotificationHandler::hasUserNotificationCenterSupport() in
  "_NSLog", referenced from:
      VideoQT::exportFrames(QString, int, RenderTask_sV*) in libsVencode.a(
  "_OBJC_CLASS_$_NSAppleScript", referenced from:
      objc-class-ref in
  "_OBJC_CLASS_$_NSAutoreleasePool", referenced from:
      objc-class-ref in libsVencode.a(
  "_OBJC_CLASS_$_NSBitmapImageRep", referenced from:
      objc-class-ref in libsVencode.a(
  "_OBJC_CLASS_$_NSFileManager", referenced from:
      objc-class-ref in libsVencode.a(
  "_OBJC_CLASS_$_NSImage", referenced from:
      objc-class-ref in libsVencode.a(
  "_OBJC_CLASS_$_NSNumber", referenced from:
      objc-class-ref in libsVencode.a(
  "_OBJC_CLASS_$_NSString", referenced from:
      objc-class-ref in
      objc-class-ref in libsVencode.a(
ld: symbol(s) not found for architecture x86_64

Does anybody have an idea about this?
Valery Brasseur (vald70)'s profile photo
+Tobias Griebe
maybe one thing I missed in  your compilation : have you check you have USE_QTKIT=TRUE on mac ? this add quicktime and dependencies for OSX, maybe this is what you are missing ?
Add a comment...

Tony Garcia

General Discussion  - 
Trying Slowmo Video out for the first time. Using Ubuntu Mate 14.04 64bit I get this error when following the instructions:

~/slowmoVideo/build$ sudo make install
[  3%] Built target V3D
[  8%] Built target sV
[ 10%] Built target sVencode
[ 13%] Built target sVflow
[ 15%] Built target sVinfo
[ 16%] Built target sVvis
[ 19%] Built target sVgui
[ 44%] Built target sVproj
[ 45%] Built target slowmoInterpolate
[ 46%] Built target slowmoVideoInfo
Linking CXX executable slowmoUI
../lib/libsVencode.a(video_enc.cpp.o): In function `CreateVideoWriter(char const*, int, int, double, int, char const*)':
/home/antonio/slowmoVideo/src/slowmoVideo/lib/video_enc.cpp:11: undefined reference to `CreateVideoWriter_QT(char const*, int, int, double, char const*)'
collect2: error: ld returned 1 exit status
make[2]: * [slowmoVideo/slowmoUI/slowmoUI] Error 1
make[1]: * [slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/all] Error 2
make: * [all] Error 2

Any ideas what I'm missing!
Valery Brasseur (vald70)'s profile photo
as previously said, it seems you have missed the " -DUSE_QTKIT=FALSE  -DENABLE_TESTS=FALSE" parameters of cmake ? your logs indicate that the quicktime part is dying to be build !. could you check this ? (you also can change it in the cmakelist.txt file directly !
well, I wonder if I should cyhange some defaults in cmake config !
Add a comment...
Hi there.
"Not enough nodes available in the project"
What it could be?

Thanks a lot.
Cyril L.'s profile photoSimon Eugster's profile photo
You first have to draw a curve before you can render the video. The curve tells sV how fast which parts should be rendered.
Add a comment...
Hi. Also having a problem compiling the slowmoUI (I think). tried the solution here , with the qt5 script module (sudo apt-get install qtscript5-dev ). But now I am getting the following error:
ghisleni@homework-pc~/slowmoVideo/build $ cmake -DENABLE_TESTS=FALSE ../src
-- Using qt5
Qt libraries found at : Qt5::Gui /  
-- checking: avformat.h
--           /usr/include/libavformat
-- checking: avcodec.h
--           /usr/include/libavcodec
-- checking: avutil.h
--           /usr/include/libavutil
-- checking: swscale.h
--           /usr/include/libswscale
-- FFMPEG libraries are at /usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/
-- slowmoInfo Bundle will be :  =>  slowmoVideo 

* (info) Installation prefix: /usr/local.
         (Can be adjusted with -DCMAKE_INSTALL_PREFIX=your_path.  Default: .)
* (info) Shaders will be included in the binary: YES
         (Can be disabled with the cmake flag -DDISABLE_INCLUDE_SOURCE)
* (ok) OpenGL found in /usr/include: /usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/;/usr/lib/i386-linux-gnu/
* (ok) GLUT found in /usr/include: /usr/lib/i386-linux-gnu/;GLUT_Xmu_LIBRARY-NOTFOUND;/usr/lib/i386-linux-gnu/
* (ok) GLEW found at /usr/include/GL
* (ok) JPEG libraries found at /usr/include: /usr/lib/i386-linux-gnu/
* (ok) PNG libraries found at /usr/include;/usr/include
* V3D will be built:                        ---YES---
* (info) slowmoVideo installation goes to /usr/local.
         (Can be adjusted with -DCMAKE_INSTALL_PREFIX=your_path. Default is .)
* (ok) ffmpeg found at 
* (ok) OpenCV 2.4.8 found at .
* slowmoVideo will be built:                --YES--

-- Configuring done
-- Generating done
-- Build files have been written to: /home/ghisleni/slowmoVideo/build
ghisleni@homework-pc~/slowmoVideo/build $ make
Scanning dependencies of target V3D
[ 46%] Building CXX object CMakeFiles/V3D.dir/V3D/GL/glsl_shaders.cpp.o
[ 46%] Building CXX object CMakeFiles/V3D.dir/V3D/GL/v3d_gpubase.cpp.o
[ 46%] Building CXX object CMakeFiles/V3D.dir/V3D/GL/v3d_gpuflow.cpp.o
[ 46%] Building CXX object CMakeFiles/V3D.dir/V3D/GL/v3d_gpucolorflow.cpp.o
[ 46%] Building CXX object CMakeFiles/V3D.dir/V3D/GL/v3d_gpupyramid.cpp.o
[ 46%] Building CXX object CMakeFiles/V3D.dir/V3D/Base/v3d_image.cpp.o
Linking CXX static library libV3D.a
[ 46%] Built target V3D
Scanning dependencies of target sV
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/defs_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/vector_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/shutter_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/intMatrix_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/interpolate_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/bezierTools_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sV.dir/sourceField_sV.cpp.o
Linking CXX static library libsV.a
[ 46%] Built target sV
[ 46%] Generating moc_ffmpeg_writer.cpp
Scanning dependencies of target sVencode
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVencode.dir/ffmpeg_writer.cpp.o
/home/ghisleni/slowmoVideo/src/slowmoVideo/lib/ffmpeg_writer.cpp:70:0: warning: ignoring #pragma mark  [-Wunknown-pragmas]
 #pragma mark -
/home/ghisleni/slowmoVideo/src/slowmoVideo/lib/ffmpeg_writer.cpp:127:0: warning: ignoring #pragma mark  [-Wunknown-pragmas]
 #pragma mark -
/home/ghisleni/slowmoVideo/src/slowmoVideo/lib/ffmpeg_writer.cpp:128:0: warning: ignoring #pragma mark C [-Wunknown-pragmas]
 #pragma mark C bridge
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVencode.dir/video_enc.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVencode.dir/moc_ffmpeg_writer.cpp.o
Linking CXX static library libsVencode.a
[ 46%] Built target sVencode
Scanning dependencies of target sVflow
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVflow.dir/flowRW_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVflow.dir/flowField_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVflow.dir/flowTools_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVflow.dir/kernel_sV.cpp.o
Linking CXX static library libsVflow.a
[ 46%] Built target sVflow
Scanning dependencies of target sVinfo
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVinfo.dir/videoInfo_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVinfo.dir/avconvInfo_sV.cpp.o
Linking CXX static library libsVinfo.a
[ 46%] Built target sVinfo
Scanning dependencies of target sVvis
[ 46%] Building CXX object slowmoVideo/lib/CMakeFiles/sVvis.dir/flowVisualization_sV.cpp.o
Linking CXX static library libsVvis.a
[ 46%] Built target sVvis
[ 46%] Generating moc_combinedShortcuts.cpp
[ 46%] Generating moc_imageDisplay.cpp
Scanning dependencies of target sVgui
[ 46%] Building CXX object slowmoVideo/libgui/CMakeFiles/sVgui.dir/imageDisplay.cpp.o
[ 46%] Building CXX object slowmoVideo/libgui/CMakeFiles/sVgui.dir/combinedShortcuts.cpp.o
[ 46%] Building CXX object slowmoVideo/libgui/CMakeFiles/sVgui.dir/moc_imageDisplay.cpp.o
[ 46%] Building CXX object slowmoVideo/libgui/CMakeFiles/sVgui.dir/moc_combinedShortcuts.cpp.o
Linking CXX static library libsVgui.a
[ 46%] Built target sVgui
[ 46%] Generating moc_work_flow.cpp
[ 46%] Generating moc_project_sV.cpp
[ 46%] Generating moc_renderTask_sV.cpp
[ 46%] Generating moc_abstractFrameSource_sV.cpp
[ 46%] Generating moc_imagesFrameSource_sV.cpp
[ 46%] Generating moc_videoFrameSource_sV.cpp
[ 46%] Generating moc_emptyFrameSource_sV.cpp
Scanning dependencies of target sVproj
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/project_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/projectPreferences_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/renderPreferences_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/tag_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/node_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/nodeList_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/segment_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/segmentList_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/nodeHandle_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/renderTask_sV.cpp.o
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/renderTask_sV.cpp:71:0: warning: ignoring #pragma mark  [-Wunknown-pragmas]
 #pragma mark - 
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/renderTask_sV.cpp:72:0: warning: ignoring #pragma mark progress [-Wunknown-pragmas]
 #pragma mark progress dialog
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/renderTask_sV.cpp:105:0: warning: ignoring #pragma mark  [-Wunknown-pragmas]
 #pragma mark - 
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/renderTask_sV.cpp:106:0: warning: ignoring #pragma mark set [-Wunknown-pragmas]
 #pragma mark set/get task
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/renderTask_sV.cpp:142:0: warning: ignoring #pragma mark  [-Wunknown-pragmas]
 #pragma mark - 
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/renderTask_sV.cpp:143:0: warning: ignoring #pragma mark rendering [-Wunknown-pragmas]
 #pragma mark rendering
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/xmlProjectRW_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/abstractFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/imagesFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/videoFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/emptyFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/abstractRenderTarget_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/imagesRenderTarget_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/videoRenderTarget_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/abstractFlowSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/flowSourceOpenCV_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/flowSourceV3D_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/interpolator_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/shutterFunction_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/shutterFunctionList_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/motionBlur_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/exportVideoRenderTarget.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/work_flow.cpp.o
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp: In member function ‘void WorkerFlow::doWorkFlow()’:
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:90:9: warning: variable ‘startFrame’ set but not used [-Wunused-but-set-variable]
     int startFrame;
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:115:15: warning: unused variable ‘levels’ [-Wunused-variable]
     const int levels = 3;
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:116:15: warning: unused variable ‘winsize’ [-Wunused-variable]
     const int winsize = 15;
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:117:15: warning: unused variable ‘iterations’ [-Wunused-variable]
     const int iterations = 8;
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:119:18: warning: unused variable ‘polySigma’ [-Wunused-variable]
     const double polySigma = 1.2;
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:120:18: warning: unused variable ‘pyrScale’ [-Wunused-variable]
     const double pyrScale = 0.5; // classical pyr
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:121:15: warning: unused variable ‘polyN’ [-Wunused-variable]
     const int polyN = 5;
/home/ghisleni/slowmoVideo/src/slowmoVideo/project/work_flow.cpp:122:9: warning: unused variable ‘flags’ [-Wunused-variable]
     int flags = 0;
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_project_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_renderTask_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_abstractFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_imagesFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_videoFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_emptyFrameSource_sV.cpp.o
[ 46%] Building CXX object slowmoVideo/project/CMakeFiles/sVproj.dir/moc_work_flow.cpp.o
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[ 46%] Built target sVproj
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[ 46%] Building CXX object slowmoVideo/slowmoCLI/CMakeFiles/slowmoInterpolate.dir/main.cpp.o
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[ 46%] Built target slowmoInterpolate
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[ 46%] Building CXX object slowmoVideo/slowmoCLI/CMakeFiles/slowmoVideoInfo.dir/videoInfo.cpp.o
Linking CXX executable slowmoVideoInfo
[ 46%] Built target slowmoVideoInfo
[ 46%] Generating qrc_resources.cpp
/home/ghisleni/slowmoVideo/src/slowmoVideo/slowmoUI/resources.qrc: Warning: potential duplicate alias detected: 'translations.qm'
/home/ghisleni/slowmoVideo/src/slowmoVideo/slowmoUI/resources.qrc: Warning: potential duplicate alias detected: 'translations.qm'
[ 46%] Generating moc_mainwindow.cpp
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[ 46%] Generating moc_frameMonitor.cpp
[ 46%] Generating moc_flowEditCanvas.cpp
[ 46%] Generating moc_renderPreview.cpp
[ 46%] Generating dialogues/moc_newProjectDialog.cpp
[ 46%] Generating dialogues/moc_preferencesDialog.cpp
[ 46%] Generating dialogues/moc_projectPreferencesDialog.cpp
[ 46%] Generating dialogues/moc_progressDialog.cpp
[ 46%] Generating dialogues/moc_renderingDialog.cpp
[ 46%] Generating dialogues/moc_shutterFunctionDialog.cpp
[ 46%] Generating dialogues/moc_shutterFunctionFrame.cpp
[ 46%] Generating dialogues/moc_flowExaminer.cpp
[ 46%] Generating dialogues/moc_tagAddDialog.cpp
[ 46%] Generating dialogues/moc_aboutDialog.cpp
[ 46%] Generating moc_notificator.cpp
[ 46%] Generating ui_mainwindow.h
[ 46%] Generating ui_canvas.h
[ 46%] Generating ui_frameMonitor.h
[ 46%] Generating ui_renderPreview.h
[ 46%] Generating ui_flowEditCanvas.h
[ 46%] Generating ui_newProjectDialog.h
[ 46%] Generating ui_preferencesDialog.h
[ 46%] Generating ui_projectPreferencesDialog.h
[ 46%] Generating ui_progressDialog.h
[ 46%] Generating ui_renderingDialog.h
[ 46%] Generating ui_shutterFunctionDialog.h
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Scanning dependencies of target slowmoUI
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/main.cpp.o
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[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/canvasTools.cpp.o
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/home/ghisleni/slowmoVideo/src/slowmoVideo/slowmoUI/dialogues/renderingDialog.cpp:222:3: warning: #warning "using QTKit version" [-Wcpp]
  #warning "using QTKit version"
/home/ghisleni/slowmoVideo/src/slowmoVideo/slowmoUI/dialogues/renderingDialog.cpp:226:3: warning: #warning "using fork version" [-Wcpp]
  #warning "using fork version"
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/shutterFunctionDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/shutterFunctionFrame.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/flowExaminer.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/tagAddDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/aboutDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/notificator.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/moc_mainwindow.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/moc_canvas.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/moc_frameMonitor.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/moc_flowEditCanvas.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/moc_renderPreview.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_newProjectDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_preferencesDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_projectPreferencesDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_progressDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_renderingDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_shutterFunctionDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_shutterFunctionFrame.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_flowExaminer.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_tagAddDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/dialogues/moc_aboutDialog.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/moc_notificator.cpp.o
[ 46%] Building CXX object slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/qrc_resources.cpp.o
Linking CXX executable slowmoUI
../lib/libsVencode.a(video_enc.cpp.o): In function `CreateVideoWriter(char const*, int, int, double, int, char const*)':
/home/ghisleni/slowmoVideo/src/slowmoVideo/lib/video_enc.cpp:11: undefined reference to `CreateVideoWriter_QT(char const*, int, int, double, char const*)'
collect2: error: ld returned 1 exit status
make[2]: * [slowmoVideo/slowmoUI/slowmoUI] Error 1
make[1]: * [slowmoVideo/slowmoUI/CMakeFiles/slowmoUI.dir/all] Error 2
make: * [all] Error 2

Any idea what is going on? (trying this on linux mint ubuntu btw)
Valery Brasseur (vald70)'s profile photoJorge Vasquez's profile photo
THANKS !!! I was having issues compiling on Arch as well, and this worked for me...
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