I want to write a program to create VOIP application for my final year project. For this time being, I spend my time to understand how SIP works and later I need to implement it into my project. As far as i know, the protocol requirement to build this project are:
UDP
RTP
As for my project, it doesn't requires me to write a complex coding. I just need to provide a server that can be used as a bridge for clients to communicate. So, is there any resources that I can used for my reference to start programming my project?
Maybe these will be helpful to look at:
Open source RTP library:
jrtplib:
Open source RTSP, RTP with a SIP client AFAIR:
liveMedia
Open source SIP library: reSIProcate
Your best bet is pjsip.
http://www.pjsip.org/
It runs on all kinds of OSes
OpenSipStack is quite nice, it's 100% C++.
The project also contains a library for creating clients using ATL.
Take a look at OPAL. It allows you to write applications that will support SIP, H.323 and IAX2.
Related
I'm trying to write a C++ command line program for peer-to-peer file transfer. My idea is to establish a connection with another machine, and send file data directly. My target platform is Windows, but interoperability with Linux and MacOS would be nice. I want this program to be standalone and not require a web browser.
I did some research and it seems that WebRTC would fit the bill, but I can't find much information on using it with C++.
Is it possible to build a standalone executable that utilizes WebRTC without requiring users to download any dependencies in order to use my program?
As the name suggests - to have the "RTC", it requires "Web" component, either in form of browser or a library.
The C++ library is quite huge and it's not a trivial task to understand and write it in a short period. Browser provides APIs in form of JavaScript calls, which are relatively easier to implement.
There might be commercial APIs in C++ available over internet.
I am trying to create a signal/textsecure client using qt and C++, however i cant seem to fibd any C++ bindings for it.
the only bindings i can find are for Go (https://github.com/nanu-c/textsecure/)
is there any way to connect C++ with signal?
edit:
i wanted to clarify some things:
-im talking about the messaging app called Signal (https://signal.org)
-i am trying to write an app for ubuntu touch and am developing on manjaro linux.
On Linux or Unix, you probably want to communicate with other remote applications using some communication protocol, such as HTTP or HTTPS or SOAP or JSONRPC or ONCRPC. Of course read about socket(7) and before that Advanced Linux Programming then about syscalls(2). Consider reading a textbook on Operating Systems
Be sure to study the source code related to Signal. Read their technical documentation.
You surely need to understand the details. So take a few days or weeks to read more about them.
If you want to use some web service, you need to read and understand its documentation and when and how you are allowed to use it. There could be legal or financial issues.
Then you might use HTTP related libraries (e.g. Wt or libonion server side, and libcurl or curlpp client side).
See also in April 2020 the ongoing HelpCovid free software project (for Linux), at least for inspiration. We are coding it in C++.
after a little more digging i found that textsecure bindings are now renamed to libsignal.
after finding that out i found a lib for c/c++
https://github.com/signalapp/libsignal-protocol-c
I'm looking for a jabber server library in C++.
I tried glooxd but it's tough to compile, buggy and no activity since more than a year now.
What I'm trying to do, is to be able to build a process that accept xmpp stream, implement it own way to authentify and build custom rosters.
Check out Swiften, a relatively new addition to the XMPP scene. It's primarily used in the client Swift, but also by Spectrum 2, which can act as a server to clients.
In the Swift git repo, there's also a tool called Slimber, that acts as a client in serverless messaging mode, and then presents that as a normal client interface. The server parts of Spectrum 2 and Slimber may be useful for you to study.
Check out the libxmpp project on Sourceforge. I don't know much about it. However, a number of years ago, I wrote a C++ layer on top of the loudmouth library. It's not hard to wrap the C library constructs in thin C++ classes.
Libxmpp: http://sourceforge.net/projects/xmpp/
Loudmouth: https://launchpad.net/loudmouth
Im looking for code that connects to another computer via remote desktop connection and checks if the connection was successful or not.
I packet logged and found out there was a galaxy worth of packets so i was wondering if there was some easy code out there.
There really isn't anything easy about RDP, that protocol stack is huge and builds on the ITU OSI protocols, which includes a fair amount of ASN.1/BER.
Your best bet is the code that's in FreeRDP.
A bit of terminology: you want a "RDP client library for C++".
As others have mentioned, look into the "FreeRDP" and "rdesktop" projects.
With FreeRDP, you're going to get a suite of libraries (each one doing it's thing). With rdesktop, you're going to get a client app (which you have to break the C code out of, and "build" your C++ api around).
If this is a new project, I'd pick FreeRDP over rdesktop, as they have libraries available with your C++ interface already in place.
Do you need to check if an RDP server is present, but not authenticate? In this case all you'd need are the first couple of packets used to negotiate protocol security. You can find the code in FreeRDP in libfreerdp-core/nego.c.
#Blanker1231 : You should have look on rdesktop code , its in c but can be very easily modified to be used in a C++ code , all you have to do is bridge their Struct Stream effectively .
moreover I have worked on a Rdp 7+ implementation ages ago in qt/c++ for a , so recently just for fun of it i used all of my experience and wrote a RDP parser and code generator and open sourced it on https://github.com/shashanksingh/Code-Generator-for-RDP
Right now it dead simple and i am still working on it more intelligent . Word of caution it doesn't generate everything . Examples includes demo.def which on compilation will generate all the class os ms-fscc used in ms-rdp
#Blanker1231 if you ever feel like , just fork the implementation and start pushing stuff in
Im quite new on Android and I have some question for all of you who are experts!
Ok, my problem...
I implemented a client-server application based on socket programming. The server encode some packets, send them to the client through a socket and the clinet decode them.
I tested the code with two linux machines and it works fine but in my experiment it is required to include another node (this will be the Android). So the server (linux machine) will encode the packets and send through socket to client1(linux machine) and client2(Android).
For this reason I want to port the native binary of my code (which is in C++) to Android.
In which way could I do this?
Please give me some help!
Really im totally stucked!
Thanks,
Zenia
when you want to port native code C/C++ to android you want to look up android ndk and jni
http://developer.android.com/sdk/ndk/index.html
http://download.oracle.com/javase/1.5.0/docs/guide/jni/spec/functions.html
There are some examples in the ndk on how to do this.
be warned that C is fully supported but C++ support apis is very limited on android (the list is in the docs of the ndk) so you might have problems porting your code.
I would recommend using directly java if you can, since working with JNI is tedious lol
how else can you port this? start learning android i did a quick check noticed it's sdk uses java you can start by looking at
http://developer.android.com/reference/java/net/Socket.html
Thanks for the reply,
I first tried to write my own code totally in java using sockets, however i had to port some optimized libraries to Android and I could figure out how to do that (i could port a simple small library but not the one that I wanted). I gave up and I right now im trying to play with jni and ndk. however i dont know if indeed i could port my binary as it is non static (like hello world). Thats why im asking. if anyone else have some experince on that please let me know. thanks a lot,
Zenia
What you should probably do is install the SDK and NDK and build the hello-jni ndk example.
Then look up how to access the android logcat output from C, and write yourself a nice little printf-like wrapper for that (probably using the vargs version of the underlying function) so you can easily generate debug output from your native code.
Then graft your native executable onto the hello-jni example code, so you'll have a java wrapper that does very little other than start things with a call to the native code. Just remember not to do much processing in the UI thread or native code called under that thread, or you will risk an application not responding timeout.
It is also possible to (ab)use the ndk's gcc to produce stand alone native executables with no java wrapper, but this is discouraged. It's hard to find a reliable place to install them on a non-rooted phone, and android's process management isn't happy about unknown native processes. In other words, that's a path that's fine for personal experiments on your own device, but a difficult and non-future-proof one for an application deployed to others.