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• Compiling ffmpeg with NVDIA GPU enabled for windows

  12 octobre 2017, par Guru

  I am working on decoding video using ffmpeg with NVDIA GPU enabled on windows platform.

  Followed below steps as per the document provided by ffmpeg to compile ffmpeg software

  1. Install msys2 from www.msys2.org.
  2. Clone FFMPEG’s public GIT repository. git clone https://git.ffmpeg.org/ffmpeg.git
  3. Create a folder named nv_sdk in the parent directory of FFMPEG and copy all the libraries from C :\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\include to and C :\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\lib\x64 to nv_sdk folder.
  4. Launch the Visual Studio x64 Native Tools Command Prompt.
  5. From the Visual Studio x64 Native Tools Command Prompt, launch the MinGW64 environment by running mingw64.exe from the msys2 installation folder.
  6. In the MinGW64 environment, install the necessary packages. pacman -S diffutil make pkg-config yasm
  7. Add the following paths by running the commands. export PATH="/c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/BIN/amd64/" :$PATH export PATH="/c/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v8.0/bin/" :$PATH
  8. Go to the FFMPEG installation folder and run the following command. ./configure —enable-nonfree —enable-nvenc —enable-cuda —enable-cuvid —enable-libnpp —extra-cflags=-Ilocal/include —extra-cflags=-I../nv_sdk —extra-ldflags=-L../nv_sdk
  9. Compile the code by executing the following command. make -j 8

  But In the 8th step I am getting below error, please let me know what could be the possible solution for the issue.

  admin@ADMIN-PC MINGW64 /c/ffmpeg
  $ ./configure —enable-nonfree —enable-nvenc —enable-cuda —enable-cuvid —ena ble-libnpp —extra-cflags=-Ilocal/include —extra-cflags=-I../nv_sdk —extra-ldf lags=-L../nv_sdk
  gcc is unable to create an executable file.
  If gcc is a cross-compiler, use the —enable-cross-compile option.
  Only do this if you know what cross compiling means.
  C compiler test failed.

  If you think configure made a mistake, make sure you are using the latest
  version from Git. If the latest version fails, report the problem to the
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "ffbuild/config.log" produced by configure as this will hel p
  solve the problem.

• Vcpkg building FFmpeg with libxml2

  15 décembre 2019, par Subestima

  First off all im a newbie in this area so if im asking something really stupid or non sense im sorry in advance, so lets get right to the point... im trying to add features to the ffmpeg, and by what i know i have to modify CONTROL file and portfile.cmake but as it seems its not enough i dont understand the errors and i cant get more info about this in the internet so if you could give me some info how to do it properly it would allready mean a lot to me ! i will leave the portions of code and error file

  **portfile.cmake:**
  
  if("libxml2" IN_LIST FEATURES)
  
      set(OPTIONS "${OPTIONS} --enable-libxml2")
  
  endif()
  
  
  
  **CONTROL:**
  
  Feature: libxml2
  
  Description: Libxml2 is the XML C parser and toolkit developed for the Gnome project (but usable outside of the Gnome platform)
  
  Build-Depends: zlib, libiconv, liblzma
  
  
  
  **Command Prompt after (vcpkg install ffmpeg[libxml2]:x64-windows)**
  
  CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:72 (message):
  
      Command failed: C:/vcpkg/downloads/tools/msys2/msys64/usr/bin/bash.exe --noprofile --norc C:/vcpkg/ports/ffmpeg\build.sh C:/vcpkg/buildtrees/ffmpeg/x64-windows-rel C:/vcpkg/buildtrees/ffmpeg/src/n4.2-02d8c63f80 C:/vcpkg/packages/ffmpeg_x64-windows "--enable-asm --enable-yasm --disable-doc --enable-debug --enable-runtime-cpudetect --enable-libxml2 --disable-openssl --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-libvpx --disable-libx264 --disable-opencl --disable-lzma --disable-bzlib --enable-avresample  --disable-static --enable-shared --extra-cflags=-DHAVE_UNISTD_H=0  --extra-cflags=-MD --extra-cxxflags=-MD"
  
      Working Directory: C:/vcpkg/buildtrees/ffmpeg/x64-windows-rel
  
      Error code: 1
  
      See logs for more information:
  
        C:\vcpkg\buildtrees\ffmpeg\build-x64-windows-rel-out.log
  
  
  
  Call Stack (most recent call first):
  
    ports/ffmpeg/portfile.cmake:197 (vcpkg_execute_required_process)
  
    scripts/ports.cmake:94 (include)
  
  
  
  
  
  Error: Building package ffmpeg:x64-windows failed with: BUILD_FAILED
  
  Please ensure you're using the latest portfiles with `.\vcpkg update`, then
  
  submit an issue at https://github.com/Microsoft/vcpkg/issues including:
  
    Package: ffmpeg:x64-windows
  
    Vcpkg version: 2019.09.12-nohash**strong text**
  
  
  
  **Log Error file:**
  
  === CONFIGURING === ERROR: libxml-2.0 not found using pkg-config
  
  
  
  If you think configure made a mistake, make sure you are using the latest version from Git.  If the latest version fails, report the problem to the ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "ffbuild/config.log" produced by configure as this will help solve the problem.

  Thank you for your attention,
  Regards Pedro Cunha !

• Senior Software Engineer for Enterprise Analytics Platform

  28 janvier 2016, par Matthieu Aubry — Jobs

  We’re looking for a lead developer to work on Piwik Analytics core platform software. We have some exciting challenges to solve and need you !

  You’ll be working with both fellow employees and our open-source community. Piwik PRO staff lives in New Zealand, Europe (Poland, Germany) and in the U.S. We do the vast majority of our collaboration online.

  We are a small, flexible team, so when you come aboard, you will play an integral part in engineering. As a leader you’ll help us to prioritise work and grow our community. You’ll help to create a welcoming environment for new contributors and set an example with your development practices and communications skills. You will be working closely with our CTO to build a future for Piwik.

  Key Responsibilities

  • Strong competency coding in PHP and JavaScript.
  • Scaling existing backend system to handle ever increasing amounts of traffic and new product requirements.
  • Outstanding communication and collaboration skills.
  • Drive development and documentation of internal and external APIs (Piwik is an open platform).
  • Help make our development practices better and reduce friction from idea to deployment.
  • Mentor junior engineers and set the stage for personal growth.

  Minimum qualifications

  • 5+ years of experience in product development, security, usable interface design.
  • 5+ years experience building successful production software systems.
  • Strong competency in PHP5 and JavaScript application development.
  • Skill at writing tests and reviewing code.
  • Strong analytical skills.

  Location

  • Remote work position !
  • or you can join us in our office based in Wellington, New Zealand or in Wrocław, Poland.

  Benefits

  • Competitive salary.
  • Equity in Piwik PRO.
  • Remote work is possible.
  • Yearly meetup with the whole team abroad.
  • Be part of a successful open source company and community.
  • In our Wellington (NZ) and Wroclaw (PL) offices : snacks, coffee, nap room, Table football, Ping pong…
  • Regular events.
  • Great team of people.
  • Exciting projects.

  Learn more

  Learn more what it’s like to work on Piwik in our blog post

  About Piwik

  At Piwik and Piwik PRO we develop the leading open source web analytics platform, used by more than one million websites worldwide. Our vision is to help the world liberate their analytics data by building the best open alternative to Google Analytics.

  The Piwik platform collects, stores and processes a lot of information : hundreds of millions of data points each month. We create intuitive, simple and beautiful reports that delight our users.

  About Piwik PRO company

  At Piwik PRO we’re solving hard problems with simple solutions that make our users and customers happy. We practise agile methodology, test driven development and fast release cycles. Our backend is mostly built in modern PHP with a bit of Python. We use MySQL/MariaDB and Redis as data stores. Our frontends is built in JavaScript using AngularJS and jQuery. Our tools include Github, Travis CI, PhpStorm and Slack.

  As a Lead Software Developer for Piwik PRO, you will be writing open source code that will run on more than 200,000 servers and be used in 200+ countries and 50 languages !

  Apply online

  To apply for this position, please Apply online here. We look forward to receiving your applications !