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• Error while building ParaView on ubuntu

  21 février 2014, par user3337492

  I´ve got school project that I have to build ParaView and work with it in parallel.

  I am using this guide: http://paraview.org/Wiki/ParaView:Build_And_Install

  I´ve installed all the required packages and now it is time to "Configure ParaView With CMake".

  When I do this recomended code

  mkdir $HOME/projects/ParaView-bin

  cd $HOME/projects/ParaView-bin

  ccmake $HOME/projects/ParaView3

  the terminal shows this:

  CMake Error: The source "/home/kulis/projects/ParaView3/CMakeLists.txt" does not match the source "/home/kulis/projects/ParaView/CMakeLists.txt" used to generate cache. Re-run cmake with a different source directory.

  so instead of ParaView3 I use ParaView in code: ccmake $HOME/projects/ParaView

  then its possible to set all the variables and compile. But there comes the real problem. When i want to compile it, the terminal shows this error message:

  ERROR ADD_PARAVIEW_VIEW_MODULE called without VIEW_TYPE or VIEW_XML_GROUP

  CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: /home/kulis/projects/ParaView/VTK/IO/FFMPEG/FFMPEG_INCLUDE_DIR used as include directory in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG FFMPEG_avcodec_LIBRARY (ADVANCED) linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG FFMPEG_avformat_LIBRARY (ADVANCED) linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG FFMPEG_avutil_LIBRARY (ADVANCED) linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG FFMPEG_swscale_LIBRARY (ADVANCED) linked by target "vtkIOFFMPEG" in directory /home/kulis/projects/ParaView/VTK/IO/FFMPEG

  And I do not really know what to do with it.

  I would very much appreciate your help. Thanks

• publish chromium rendered view to ffmpeg/libav

  21 février 2014, par user3337537

  I would like to publish chromium rendered view to ffmpeg/libav stream instead of showing it on the operating window system. Also plugins like flash should be included in the stream. I don't know much about chromium rendering yet.

  I know there are command like "ffmpeg -f x11grab -s 1280x720" ... But i would like to do this right from chrome to publish mutliple tabs at the same time.

  How would you estimate the development effort for that?

• Excessive CPU usage when transcoding with ffmpeg

  21 février 2014, par user3130013

  I have 2 servers that are almost identical:

  Server 1: Dell R900 4xQuad core E7330. Has DVB cards getting MPEGTS streams and does about 20 transcoding processes @ 70% CPU each Server 2: Dell R900 4xQuad core E7340. Gets MPEGTS via HTTP from server 1 and does only 7 transcoding processes @ 220% CPU each.

  Server 2 is not able to do more then 7 as each process is almost triple in CPU consumption. If If I start with 1 process it shows up as 70% and looks fine. When I add remaining 6 all processes jump to 220% usage.

  Any ideas what might be wrong with server 2?

• How to merge two files with ffmpeg without

  21 février 2014, par Elias Granja

  I would like to merge two files with ffmpeg, but instead to simple add one video to the end of the other, I want that both videos play at same time with one video using all the screen, and the other a small square at the right-bottom at the screen(it`s something like the hangout screen).

  Is this possible?

  Thanks,

• FFmpeg for the file conversion using URL

  21 février 2014, par user3227615

  i need to be converted from MP4 to AVI. MP4 video are uploaded in window azure blob storage and storage is accessible publicly. my question when we write the ffmpeg command line. can i give the url of the video which is on blob storage

  ffmpeg -i https://abcd.blob.core.windows.net/container/1.mp4 D:\Shared\1.avi