oRTP is a GPLv2 licensed C library implementing the RTP protocol (rfc3550). It is available for most unix clones (primilarly Linux and HP-UX), and Microsoft Windows.
Prior to version 1.0.0, oRTP was licensed under LGPLv2. Due to inclusion of new code licensed under GPLv2, oRTP has become GPLv2. For the sake of clarity, all source files headers were updated to mention the GPLv2 only. oRTP versions prior to 1.0.0 of course remain LGPLv2.
bctoolbox[1]: portability layer
Autotools procedure is deprecated. Use CMake to configure the source code.
cmake . -DCMAKE_INSTALL_PREFIX=<prefix> -DCMAKE_PREFIX_PATH=<search_paths>
make
make install
CMAKE_INSTALL_PREFIX=<string>: install prefixCMAKE_PREFIX_PATH=<string>: column-separated list of prefixes where to search for dependenciesENABLE_SHARED=NO: do not build the shared libraryENABLE_STATIC=NO: do not build the static libraryENABLE_STRICT=NO: build without strict compilation flags (-Wall -Werror)ENABLE_TESTS=YES: build tester binariesENABLE_DOC=NO: do not generate the documentationENABLE_DEBUG_LOGS=YES: turn on debug-level logs
Our CMake scripts may automatically add some paths into research paths of generated binaries.
To ensure that the installed binaries are striped of any rpath, use -DCMAKE_SKIP_INSTALL_RPATH=ON
while you invoke cmake.
Rpm packaging ortp rpm can be generated with cmake3 using the following command: mkdir WORK cd WORK cmake3 ../ make package_source rpmbuild -ta --clean --rmsource --rmspec ortp--.tar.gz
There are shorts and easy to understand programs given with the library. There are good example to understand how to use oRTP api.
- rtpsend : sends a stream from a file on disk.
- rtprecv : receives a stream and writes it to disk.
- mrtpsend: sends multiple streams from a file on disk to a range of remote port.
- mrtprecv: receives mutiple streams on a range of local ports and writes them on disk.
See the doxygen generated API documentation in docs/html. Program examples are a very good starting point.
- works with ipv6
- packet scheduler
- adaptive jitter compensation
- automatic sending of RTCP SR or RR coumpounded with a SDES
- RTCP parser API
- multi-endpoint rtp sessions.
- linphone (http://www.linphone.org) was the first.
- the OCMP platform (a Hewlett Packard product).
gcc -o myprogram pkg-config --cflags ortp myprogram.c
pkg-config --libs ortp
There are instructions and Microsoft Visual C++ project files in build/win32native/oRTP.
[1] git://git.linphone.org/bctoolbox.git or http://www.linphone.org/releases/sources/bctoolbox