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• Failed encoding Carrierwave-video FFMPEG

  12 septembre 2018, par Cole Phiper

  I’m using Carrierwave-video and Carrierwave-ffmpegthumbnailer. The problem I am having, is the transcoder is now refusing to work & I can’t locate the origin of the error. I tried removing some of the custom settings, but nothing seems to work. How can I fix the transcoder to allow video uploads ?

  story_video_uploader.rb

  require 'mime/types'
  
  class StoryVideoUploader < CarrierWave::Uploader::Base
  
  
  
    # Include RMagick or MiniMagick support:
  
    # include CarrierWave::RMagick
  
    include CarrierWave::MiniMagick
  
    include CarrierWave::Video
  
    include CarrierWave::Video::Thumbnailer
  
    # include CarrierWave::FFMPEG
  
  
  
    # Choose what kind of storage to use for this uploader:
  
    storage :postgresql_lo
  
    # storage :fog
  
  
  
    # Override the directory where uploaded files will be stored.
  
    # This is a sensible default for uploaders that are meant to be mounted:
  
  
  
    version :thumb do
  
      process thumbnail: [{ format: 'png', quality: 10, size: 200, strip: false, logger: Rails.logger }]
  
      def full_filename(for_file)
  
        png_name(for_file, version_name)
  
      end
  
      process :apply_png_content_type
  
    end
  
  
  
    version :mp4 do
  
      process encode_video: [:mp4, resolution: '1024x1366', preserve_aspect_ratio: :width, watermark: { path: File.join(Rails.root, 'app/assets/images/', 'logo_94x70_WHITE.png'),  position: :bottom_right, pixles_from_edge: 10  }]
  
    end
  
  
  
  
  
    def png_name(for_file, version_name)
  
      %Q{#{version_name}_#{for_file.chomp(File.extname(for_file))}.png}
  
    end
  
  
  
    def store_dir
  
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  
    end
  
  
  
    def extension_white_list
  
      [/png\Z/, /jpe?g\Z/, /gif\Z/, /mp4\Z/, /mov\Z/, /ogg\Z/, /webm\Z/, /avi\Z/, /3gp\Z/, /mkv\Z/]
  
    end
  
  
  
    def apply_png_content_type(*)
  
      file.instance_variable_set(:@content_type, 'image/png')
  
    end
  
  end

  Rails Console and Error output

  irb(main):020:0> >> story.story_video = File.open("/home/cole/Downloads/Video_Of_People_Walking.mp4")
  
  Running....ffmpegthumbnailer -i "/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/thumb/Video_Of_People_Walking.mp4" -o "/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/thumb/tmpfile.png" -c png -q 10 -s 200
  
  Success!
  
  I, [2018-09-11T18:17:58.675474 #2522]  INFO -- : Running transcoding...
  
  ["/usr/bin/ffmpeg", "-y", "-i", "/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/mp4/Video_Of_People_Walking.mp4", "-vcodec", "libx264", "-acodec", "aac", "-s", "1024x576", "-r", "30", "-strict", "-2", "-map_metadata", "-1", "-vf", "\"movie=/home/cole/Desktop/TestApp/app/assets/images/logo_94x70_WHITE.png [logo]; [in][logo] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]\"", "-aspect", "1.7777777777777777", "/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/mp4/tmpfile.mp4"]
  
  
  
  E, [2018-09-11T18:18:00.233135 #2522] ERROR -- : Failed encoding...
  
  ["/usr/bin/ffmpeg", "-y", "-i", "/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/mp4/Video_Of_People_Walking.mp4", "-vcodec", "libx264", "-acodec", "aac", "-s", "1024x576", "-r", "30", "-strict", "-2", "-map_metadata", "-1", "-vf", "\"movie=/home/cole/Desktop/TestApp/app/assets/images/logo_94x70_WHITE.png [logo]; [in][logo] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]\"", "-aspect", "1.7777777777777777", "/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/mp4/tmpfile.mp4"]
  
  
  
  ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libavresample   3.  7.  0 /  3.  7.  0
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/mp4/Video_Of_People_Walking.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomavc1
  
      creation_time   : 2017-03-09T02:02:54.000000Z
  
    Duration: 00:00:19.19, start: 0.000000, bitrate: 3454 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 3451 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-03-09T02:02:54.000000Z
  
        handler_name    : L-SMASH Video Handler
  
        encoder         : AVC Coding
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [AVFilterGraph @ 0x56309b654840] No such filter: '"movie'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Invalid argument
  
  Error while processing the decoded data for stream #0:0
  
  Conversion failed!
  
  
  
  Errors: encoded file is invalid. 
  
  
  
  FFMPEG::Error: Failed encoding.Errors: encoded file is invalid. Full output: ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libavresample   3.  7.  0 /  3.  7.  0
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/cole/Desktop/TestApp/tmp/1536704274-2522-0003-3784/mp4/Video_Of_People_Walking.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41isomavc1
  
      creation_time   : 2017-03-09T02:02:54.000000Z
  
    Duration: 00:00:19.19, start: 0.000000, bitrate: 3454 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 3451 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-03-09T02:02:54.000000Z
  
        handler_name    : L-SMASH Video Handler
  
        encoder         : AVC Coding
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [AVFilterGraph @ 0x56309b654840] No such filter: '"movie'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Invalid argument
  
  Error while processing the decoded data for stream #0:0
  
  Conversion failed!
  
  
  
      from (irb):20
  
  irb(main):021:0> 

• OpenCV 3.4.3 - GStream not called when VideoWriting

  14 décembre 2018, par taubhi

  I’d like to succeed writing a file with OpenCV encoding with GStreamer.

  Thus I’m using the code :

  VideoWriter.open("appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=test2.mkv sync=false",
  
  //cv::CAP_GSTREAMER, //set or not, I get the same problem
  
  0, (double)25, //fourcc, fps
  
  cv::Size(1024, 1024), 
  
  true);

  And my problem :

  A video file called appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=test2.mkv sync=false is created (rather than test2.mkv), and it is empty. The same problem is corrected and seems to work in the following thread, without any effect for me : Opening a GStreamer pipeline from OpenCV with VideoWriter

  I tried, without success :

  • Add quotes to the file name test2 :
    "appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=\"test2.mkv\" sync=false" neither
  • Encode with different format : .flv rather than .mkv
  • Encode with different codec : omxh265enc rather than omxh264en

  I checked :

  • That GStreamer is well compiled with OpenCV ; the CMake of the OpenCV project outputs :

    Video I/O:Video for Windows : YES
    DC1394 : NO
    FFMPEG : YES (prebuilt binaries)
    avcodec : YES (ver 57.107.100)
    avformat : YES (ver 57.83.100)
    avutil : YES (ver 55.78.100)
    swscale : YES (ver 4.8.100)
    avresample : YES (ver 3.7.0)
    GStreamer :

    base : YES (ver 1.0)

    video : YES (ver 1.0)

    app : YES (ver 1.0)

    riff : YES (ver 1.0)

    pbutils : YES (ver 1.0)

    DirectShow : YES

    Media Foundation : YES

  • That FFMpeg is installed on my computer ; for this I used VLC :

    File -> Stream -> Add a file then stream
    New destination : RTP/MPEG Transport Stream
    Profile : Video - H.264 + MP3 (MP4)
    Then no error happens ; Note : an error occured with Video - H.265 + MP3
    (MP4), but I’m using omxh264enc in my code, not 265

  I’m struggled :/ Do you have any idea ?
  Thanks a lot :)

  Have a good day,

  Thibaut

  PS - Complete OpenCV CMake output :

  Selecting Windows SDK version 10.0.17134.0 to target Windows 10.0.17763.
  
  AVX_512F is not supported by C++ compiler
  
  
  
  AVX512_SKX is not supported by C++ compiler
  
  
  
  Dispatch optimization AVX512_SKX is not available, skipped
  
  
  
  libjpeg-turbo: VERSION = 1.5.3, BUILD = opencv-3.4.3-libjpeg-turbo
  
  
  
  Looking for Mfapi.h
  
  
  
  Looking for Mfapi.h - found
  
  
  
  found Intel IPP (ICV version): 2017.0.3 [2017.0.3]
  
  
  
  at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippicv_win
  
  
  
  found Intel IPP IW sources: 2017.0.3
  
  
  
  at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippiw_win
  
  
  
  CUDA detected: 9.2
  
  
  
  CUDA NVCC target flags: -gencode;arch=compute_30,code=sm_30;-gencode;arch=compute_35,code=sm_35;-gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_52,code=sm_52;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_61,code=sm_61;-gencode;arch=compute_70,code=sm_70;-D_FORCE_INLINES
  
  
  
  Found apache ant: C:/NVPACK/apache-ant-1.8.2/bin/ant.bat (1.8.2)
  
  
  
  Could NOT find Matlab (missing: MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS MATLAB_ROOT_DIR MATLAB_LIBRARIES MATLAB_LIBRARY_DIRS MATLAB_MEXEXT MATLAB_ARCH MATLAB_BIN)
  
  
  
  VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
  
  
  
  Caffe: NO
  
  
  
  Protobuf: NO
  
  
  
  Glog: YES
  
  
  
  freetype2: NO
  
  
  
  harfbuzz: NO
  
  
  
  Module opencv_ovis disabled because OGRE3D was not found
  
  
  
  No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
  
  
  
  Found installed version of gflags: E:/Git/gflags/BUILD-VS2015
  
  
  
  Detected gflags version: 2.2.1
  
  
  
  Checking SFM deps... FALSE
  
  
  
  Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
  
  
  
  Excluding from source files list: <build>/modules/dnn/layers/layers_common.avx512_skx.cpp
  
  
  
  Tesseract: NO
  
  
  
  
  
  General configuration for OpenCV 3.4.3 =====================================
  
  
  
  Version control: unknown
  
  
  
  
  
  Extra modules:
  
  
  
  Location (extra): E:/OpenCV/3.4.3/opencv_contrib-3.4.3/modules
  
  
  
  Version control (extra): unknown
  
  
  
  
  
  Platform:
  
  
  
  Timestamp: 2018-11-07T16:57:18Z
  
  
  
  Host: Windows 10.0.17763 AMD64
  
  
  
  CMake: 3.12.0-rc2
  
  
  
  CMake generator: Visual Studio 14 2015 Win64
  
  
  
  CMake build tool: C:/Program Files (x86)/MSBuild/14.0/bin/MSBuild.exe
  
  
  
  MSVC: 1900
  
  
  
  
  
  CPU/HW features:
  
  
  
  Baseline: SSE SSE2 SSE3
  
  
  
  requested: SSE3
  
  
  
  Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2
  
  
  
  requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
  
  
  
  SSE4_1 (5 files): + SSSE3 SSE4_1
  
  
  
  SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
  
  
  
  FP16 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
  
  
  
  AVX (6 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
  
  
  
  AVX2 (11 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
  
  
  
  
  
  C/C++:
  
  
  
  Built as dynamic libs?: YES
  
  
  
  C++11: YES
  
  
  
  C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe (ver 19.0.24215.1)
  
  
  
  C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP16 /MD /O2 /Ob2 /DNDEBUG
  
  
  
  C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP16 /MDd /Zi /Ob0 /Od /RTC1
  
  
  
  C Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe
  
  
  
  C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /MP16 /MD /O2 /Ob2 /DNDEBUG
  
  
  
  C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /MP16 /MDd /Zi /Ob0 /Od /RTC1
  
  
  
  Linker flags (Release): /machine:x64 /INCREMENTAL:NO
  
  
  
  Linker flags (Debug): /machine:x64 /debug /INCREMENTAL
  
  
  
  ccache: NO
  
  
  
  Precompiled headers: YES
  
  
  
  Extra dependencies: cudart.lib nppc.lib nppial.lib nppicc.lib nppicom.lib nppidei.lib nppif.lib nppig.lib nppim.lib nppist.lib nppisu.lib nppitc.lib npps.lib cublas.lib cufft.lib -LIBPATH:C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v9.2/lib/x64
  
  
  
  3rdparty dependencies:
  
  
  
  
  
  OpenCV modules:
  
  
  
  To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dpm face features2d flann fuzzy hfs highgui img_hash imgcodecs imgproc java java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot python_bindings_generator reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
  
  
  
  Disabled: js world
  
  
  
  Disabled by dependency: -
  
  
  
  Unavailable: cnn_3dobj cvv freetype hdf matlab ovis python2 python3 sfm viz
  
  
  
  Applications: tests perf_tests apps
  
  
  
  Documentation: NO
  
  
  
  Non-free algorithms: NO
  
  
  
  
  
  Windows RT support: NO
  
  
  
  
  
  GUI:
  
  
  
  Win32 UI: YES
  
  
  
  VTK support: NO
  
  
  
  
  
  Media I/O:
  
  
  
  ZLib: build (ver 1.2.11)
  
  
  
  JPEG: build-libjpeg-turbo (ver 1.5.3-62)
  
  
  
  WEBP: build (ver encoder: 0x020e)
  
  
  
  PNG: build (ver 1.6.34)
  
  
  
  TIFF: build (ver 42 - 4.0.9)
  
  
  
  JPEG 2000: build (ver 1.900.1)
  
  
  
  OpenEXR: build (ver 1.7.1)
  
  
  
  HDR: YES
  
  
  
  SUNRASTER: YES
  
  
  
  PXM: YES
  
  
  
  
  
  Video I/O:
  
  
  
  Video for Windows: YES
  
  
  
  DC1394: NO
  
  
  
  FFMPEG: YES (prebuilt binaries)
  
  
  
  avcodec: YES (ver 57.107.100)
  
  
  
  avformat: YES (ver 57.83.100)
  
  
  
  avutil: YES (ver 55.78.100)
  
  
  
  swscale: YES (ver 4.8.100)
  
  
  
  avresample: YES (ver 3.7.0)
  
  
  
  GStreamer:
  
  
  
  base: YES (ver 1.0)
  
  
  
  video: YES (ver 1.0)
  
  
  
  app: YES (ver 1.0)
  
  
  
  riff: YES (ver 1.0)
  
  
  
  pbutils: YES (ver 1.0)
  
  
  
  DirectShow: YES
  
  
  
  Media Foundation: YES
  
  
  
  
  
  Parallel framework: Concurrency
  
  
  
  
  
  Trace: YES (with Intel ITT)
  
  
  
  
  
  Other third-party libraries:
  
  
  
  Intel IPP: 2017.0.3 [2017.0.3]
  
  
  
  at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippicv_win
  
  
  
  Intel IPP IW: sources (2017.0.3)
  
  
  
  at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippiw_win
  
  
  
  Custom HAL: NO
  
  
  
  Protobuf: build (3.5.1)
  
  
  
  
  
  NVIDIA CUDA: YES (ver 9.2, CUFFT CUBLAS NVCUVID)
  
  
  
  NVIDIA GPU arch: 30 35 37 50 52 60 61 70
  
  
  
  NVIDIA PTX archs:
  
  
  
  
  
  OpenCL: YES (no extra features)
  
  
  
  Include path: E:/OpenCV/3.4.3/opencv-3.4.3/3rdparty/include/opencl/1.2
  
  
  
  Link libraries: Dynamic load
  
  
  
  
  
  Python (for build): C:/ProgramData/Miniconda3/python.exe
  
  
  
  
  
  Java:
  
  
  
  ant: C:/NVPACK/apache-ant-1.8.2/bin/ant.bat (ver 1.8.2)
  
  
  
  JNI: C:/NVPACK/jdk1.8.0_77/include C:/NVPACK/jdk1.8.0_77/include/win32 C:/NVPACK/jdk1.8.0_77/include
  
  
  
  Java wrappers: YES
  
  
  
  Java tests: YES
  
  
  
  
  
  Matlab: NO
  
  
  
  
  
  Install to: E:/OpenCV/3.4.3/build/install
  
  
  
  -----------------------------------------------------------------
  
  
  
  
  
  Configuring done
  
  </build>

• Q&A : An interview with Matomo founder, Matthieu Aubry

  20 novembre 2018, par Joselyn Khor — About, Community

  Hey everyone ! Joselyn here. As always the views of our community remain top of mind. So to make sure you guys know the thinking behind these new projects, we reached out to Matomo’s founder, Matthieu, to ask questions you might want answered. Please check it out below !

  Hi guys, it’s Matthieu ! Here to answer some questions about the rebrand and the future of Matomo and Innocraft.

  What’s upcoming ?

  We’ve been busy implementing our rebrand into all aspects of Matomo and there’s also our new website, which is launching today ! The new website will help people better understand what Matomo is and how they can benefit from using modern web analytics.

  Why was Matomo and Innocraft brought onto one website ?

  In the past the separation caused a bit of confusion so we’re taking this as a chance to unite both the business brand, Innocraft and community brand, Matomo, on one website. Putting our focus on one brand, Matomo, makes it easier for people to see us with fresh eyes. We have a community side as well as a business side and while the community is still incredibly important to us, we find we have a powerful analytics tool that is capable of helping businesses too.

  Is Matomo becoming commercial or turning corporate ?

  No. nothing is changing. Matomo is still an open-source project and community. Although we’ll have a pricing page and “start free trial” on the new website brought over from Innocraft.cloud, the Matomo community will still play the biggest part on the Matomo website. We have dedicated sections focused on Community and On-Premise.

  The rebrand exercise helped us gain a refreshed perspective. After reflecting on how far we’ve come, we can feel more confident about Matomo Analytics itself as a platform. We believe it’s a great chance to bring that confidence into the brand and vision. We are proud that it’s an awesome open-source platform and at the same time it’s also powerful as a tool for businesses.

  Why is there no ‘download for free’ button on the homepage ?

   

  
  We feel many users coming to the site will get confused about our hosting options (Cloud and On-Premise) which is something you don’t usually consider when choosing an analytics tool.

  The reason for us to not have that button is when people see a “download for free” button on the homepage next to a “try it for free” button, it creates confusion. For those who do choose to download Matomo often become confused when they are left with a .zip file unaware how to install it and the technical requirements of self-hosting. We feel presenting our users with the simplest installation option first will give them the best chance possible to try Matomo to its full potential, without cost.

  And you can still find the link to Download Matomo in the footer of each page.
  

   

  Is Matomo still free to download and have forever ?

  Absolutely. The free open-source download can be found on the On-Premise section of the website, or download Matomo here.

  Why is it important to have a business behind the project ?

  There’s the reality that we have to make money in order for the Matomo project to survive … and thrive. The reason we still need a business side (Innocraft) is to fund and sustain the Matomo project. Whenever people purchase premium features, this helps finance the development of Matomo for our community.

  Because of the business we’re able to continually maintain and develop Matomo for you guys as well as future users. For example, the next release Matomo 3.8.0 is already mostly developed and will bring lots of interesting features too, like the two-factor authentication, Brute Force Protection, failed tracking requests reporting, lots of JavaScript tracker improvements, a new total summary row below reports, and many more security fixes, bug fixes, and other new features.

  So we see a business being very helpful in supporting our open-source community. Without a business side, our free, open-source project would not be able to survive.

  How will you protect the Matomo project ?

  We’ve ensured the Matomo project will be protected for the future as we wish to turn it into a not-for-profit foundation.

  We’ve also got a safeguard where the open-source code will stay under a GPL license forever. This is so we can guarantee, that no matter what happens, the Matomo project itself will stay completely free software.

  Is there a way for people to help ?

  There are heaps of ways to help ! You can help other Matomo users in the forums, contribute to fixes on GitHub, leave a great review (e.g. alternativeTo), help look for bugs with our Security Bounty Programme or participate and spread the word about Matomo in our community social media pages – Mastodon, Facebook, Twitter. Telling your friends about us would be very helpful too !

  What’s planned for the future ?
  We’ve worked hard to become the #1 open-source analytics platform (1.4 million websites use Matomo today), but now we need to empower even more individuals and businesses to take back control of their own data.

  Showing our community that we have a powerful platform is crucial, but alongside that our values are what define us. User privacy is still of utmost importance and we’re here to make it known that power needs to rest in the hands of people and not large corporations.

  You can rest easy knowing you’re doing your part in using trustworthy and dependable tools. By joining many other companies who are growing this movement to decentralise the Internet, we can build a safer, online world together.

  Join this analytics revolution and let us know what you think about Matomo !