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https://github.com/davidfischer-ch/smpte2022lib
Optimized and cross platform SMPTE 2022-1 FEC library in C, Python, Java
https://github.com/davidfischer-ch/smpte2022lib
Last synced: about 2 months ago
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Optimized and cross platform SMPTE 2022-1 FEC library in C, Python, Java
- Host: GitHub
- URL: https://github.com/davidfischer-ch/smpte2022lib
- Owner: davidfischer-ch
- License: other
- Created: 2013-04-13T07:11:58.000Z (over 11 years ago)
- Default Branch: master
- Last Pushed: 2014-02-26T13:12:29.000Z (almost 11 years ago)
- Last Synced: 2024-07-31T22:56:34.548Z (5 months ago)
- Language: C
- Size: 6.86 MB
- Stars: 37
- Watchers: 10
- Forks: 20
- Open Issues: 0
-
Metadata Files:
- Readme: README.rst
- License: LICENSE.rst
Awesome Lists containing this project
README
.. _CodeBlocks: http://www.codeblocks.org/
.. _MinGW: http://www.mingw.org/
.. _VLC: http://www.videolan.org/vlc/index.html
============
smpte2022lib
============
Optimized and cross platform SMPTE 2022-1 FEC library in C, Python, Java.
-----------------
Brief description
-----------------
SMPTE 2022-1 is a forward error correction standard for real-time video/audio (RTP) transport over IP networks.
Initial goal of the project was to help VLC and others to implement this FEC algorithm by implementing a standalone C/C++ SMPTE 2022-1 FEC streams generator and receiver.
Nowadays I focus on using the newer Java and Python implementations for some Ra&D projects using RTP streams.
---------
ForPython
---------
I developed this version to generate SMPTE 2022-1 FEC streams from a sniffed RTP media stream.
This implementation is now part of `pytoolbox `_ (see `commit `_).
-------
ForJava
-------
This is the Java re-implementation of the old C/C++ SMPTE 2022-1 FEC library.
I developed this version to receive protected RTP multicast streams from an Android device.
Of course, you can also use it for another purpose (e.g. a Java powered PC application).
.. note::
* ``FecReceiver.java`` is the RTP / SMPTE 2022-1 FEC receiver.
--------
ForC_old
--------
This is the first (abandon-ware) implementation of the library.
I do not use it anymore and I really think that this implementation needs some heavy refactoring.
You can read the `resume `_ of the project files if you understand French.
Don't hesitate to contact me to get further explanations.
GNU/Linux (e.g. Ubuntu 64)
==========================
Compiling step by step
----------------------
* install CodeBlocks_ and g++ with ``sudo apt-get install codeblocks g++``
* open file ``ForC_old/CodeBlocks/VLC-SMPTE.workspace`` with CodeBlocks_
* double click on project **Smpte-2022-** in CodeBlocks_ IDE and Ctrl+F11 to compile
* double click on project **FecGenerator** in CodeBlocks_ IDE and Ctrl+F11 to compile
* double click on project **ErrorsGenerator** in CodeBlocks_ IDE and Ctrl+F11 to compile
* double click on project **FecDecoder** in CodeBlocks_ IDE and Ctrl+F11 to compile
Testing step by step
--------------------
* open a terminal in path ``ForC_old/Release-linux64``
* execute ``sh script_example.sh "source_file_name"``
* read logs of each module
* compare ``*.raw`` output file (without any error recovery) and ``*.david`` output file (recovered by SMPTE 2022-1 library)
* execute each module with different options :
- like this : ``source_file -> FecGenerator -> FecDecoder -> results_files``
- or like this : ``source_file -> FecGenerator -> ErrorsGenerator -> FecDecoder -> results_files``
Windows (e.g. Windows XP 32)
============================
Compiling step by step
----------------------
Steps are equivalent to GNU/Linux steps with some variations (CodeBlocks_ running under a MinGW_ environment).
Testing step by step
--------------------
Steps are equivalent to GNU/Linux steps with some variations (scripts names and files extensions).
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ForVlc_old
----------
This is the work done by Jérémie Mathieu Rossier to integrate the old C/C++ SMPTE 2022-1 FEC library into VLC_.
2013 - David Fischer