Yuri 2.8 should work with any compiler with decent C++11 support. It is known to successfully compile with gcc 4.7 and newer, clang 3.2 and newer. It won't build with MSVC as it's C++11 support is still pretty bad.

Core of yuri 2.8 and several modules should compile without any external library, but there's lot of modules depending on some external library.

• boost 1.49 or newer. If preset, it will be used in core and few modules. (Mostly for filesystem traversal and regexes)
• libsdl. Required for module sdl_window.
• libav* (ffmpeg suite). Required for rawavfile.
• alsa (asound library). Required for midi_device and alsa_output.
• jpeg 8 (libjpeg or libjpeg-turbo). Required for jpeg module.
• libpng 1.5. Required for png module.
• X11 libraries. Required for screen capture.
• OpenCV 2.3. Required for opencv module (conversions and facedetection)

For successfull build of ultragrid modules, you may need following packages: speex, libv4l, libsdl

Installing in Gentoo:

    emerge speex libv4l libsdl

    cd ${BASE}
    git clone http://seth.ics.muni.cz/git/ultragrid.git/ -b trunk
    cd ultragrid
    wget http://projects.iim.cz/_media/yuri:uv_yuri_2.8.patch -O - | patch -p1

This downloads current sources from ultragrid repository (the development branch) and applies yuri patch.

    ./autogen.sh --disable-libavcodec

Calling autogen.sh configures ultragrid. You should verify that it succeeded before continuing. The –disable-libavcodec disables the libavcodec support in ultragrid, but it will still work as yuri module.

And finally, build ultragrid:

    make

If the compilation fails because of undefined unknown symbols like: AV_PIX_FMT_YUV444P, then disable libavcodec support (it probably means that you have unsupported libavcodec version) and try again: <code bash> ./autogen.sh –disable-libavcodec make </code>

There's no need for ultragrid binary in yuri, but the compilation process creates some include files, which are needed for the compilation in yuri.

    cd ${BASE}
    git clone anon@git.iim.cz:yuri-light -b 2.8.x yuri-light-2.8
    cd yuri-light-2.8
    mkdir build
    cd build
    cmake .. -DCMAKE_BUILD_TYPE=Release

For ultragrid support, please call:

    cmake .. -DCMAKE_BUILD_TYPE=Release -DYURI_DISABLE_ULTRAGRID=OFF

And you should see line “Building ULTRAGRID helper library!” in the output.

And simply build the library:

    make