Linux installation
-----------------------


License authorization
==========================
[Single machine online authorization option]

* ./tools/licenceAuthOnline [SN_CODE]
[Single machine offline authorization option]

* ./tools/licenceLocalInfo [SN_CODE] [OUTPUT_FILE]. (will generate device fingerprint OUTPUT_FILE).
* Send us the device fingerprint file
* We generate an authorization file based on the fingerprint file and send it to you
* ./tools/licenceAuthOffline [UPDATE_FILE]
[Group authorization option]

* ./tools/licenceSetLocalServer [IP] [PORT], (IP PORT is the IP and port number of the group license server)


Set environment variables
===============================
1. source setup_env.sh to set environment variables, but this is only valid for the current terminal
2. You can also add the following two lines to the end of the /etc/profile file, permanently effective

.. code:: bash

    export DFACE_SDK_ROOT={sdk_path}
    export LD_LIBRARY_PATH={sdk_path}/lib:{sdk_path}/3rdparty/opencv/lib

Note: Replace {sdk_path} with the actual absolute path of dface_sdk

QT demo running
===================
1. Command line ./qt_demon.sh can run

QT demo project configuration
===================================
1. QT Creator opens {sdk_path}/example/cpp/dface_qt_demo project
2. Double-click Projects->Run->Run Environment

* add enviroment LD_LIBRARY_PATH={sdk_path}/lib:{sdk_path}/3rdparty/opencv/lib
* add enviroment DFACE_SDK_ROOT= {sdk_path}
* see {sdk_path}/example/cpp/dface_qt_demo_setup.jpg for details

.. image:: ../dface_qt_demo_setup_linux.jpg
   :scale: 100%
   :align: center