rtp

Multiple H.264 video streams in one RTP session

I would like to dynamically switch the video source in a streaming video application. However, the different video sources have unique image dimensions. I can generate individual SDP files for each video source, but I would like to combine them into a single SDP file so that the viewing client could automatically resize the display windo...

Why Does RTP use UDP instead of TCP?

I wanted to know why UDP is used in RTP rather than TCP ?. Major VoIP Tools used only UDP as i hacked some of the VoIP OSS. ...

JMF and RTP Protocol

Hello everyone. I am doing a project which consists of a video-conference system in Java and using the RTP protocol. The problem is that I can not pass the stream to the clients, that I capture in my webcam. Someone can give me a hand. I already turned off my firewall, but does not waork. Thank you ...

What is the best way to develop a screensharing/presenting app in java or c++ using RTP?

I am trying to build a server sided HTML rendering based browser much like skyfire. I am evaluating the technologies that I would need to build this. When a user types in a www.yahoo.com on the client box, there is a session started on the server, then i grab the screenshots and send them in a RTP stream back to the client. To do the RTP...

Sending RTP using Java

What would be the best way to send/receive audio data over RTP using Java? I have read a little about JMF, but it seems to be out of date. Are there are other viable alternatives. ...

How to create a stream of jpegs(live) in c++ or c# or java? RTSP?

I am building a server sided html rendering browser that renders html and sends jpegs to the mobile client. I need to figure out how to build a server that grabs jpegs and streams them in a session to a client that i am going to write in j2me ...

Java and RTP - related experiences

Hi, I'm trying to collect some experiences about using a Java library to stream RTP. In your experience, which is the most suitable library for this task? I am currently evaluating: JMF, FMJ, jrtp, others? (that you might suggest) Thank you, Michele ...

simple rtsp broadcast example source

Hi, I want to broadcast the screen (not a static screen) of my program using rtsp/rtp since this way a mobile phone (at least the more recent ones) can view the stream. I'm looking for a simple example program which takes the frames I offer, encodes it with a codec and then sends this (using rtsp) to any clients attached. I've looked ...

RTP sequence extract

A RTP packet consists of a 12-byte RTP header and subsequent RTP payload The 3rd and 4th byte of the header contain the Most-Significant-Byte and Least-Significant-Byte of the sequence number of the RTP packet Seq Num= (MSB<<8)+LSB char pszPacket[12]; ... long lSeq = ???? - How to get the sequence number from a packet? ...

How to start RTP stream inside a SIP/SDP call

I've managed to set up a SIP call using the JAIN-SIP API for Java. Now I would like to stream some video once a dialog has been established. I've read that this is possible with SDP and RTP, and I've found multiple examples on how to define a SDP/RTP body in a SIP packet. But once you have negotiated capability etc. on nodes, how do yo...

Best C++ RTP/RTSP library

Hello I'm looking for a RTP/RTSP library in C++. I found pjsip but it is more C-style. I'm looking for more OO library. Thanks ...

Open source RTP mixer/translator exe or sdk

Hi I need opens source (win 32) sdk or free server with signaling protocol, which implements RTP translator or mixer. e.g receives RTP traffic from one connection and transmits it on the other. Does not have to have conferencing capabilities. Server should implement some kind of protocol which opens, bridges, and closes connections. R...

Is RTP suitable for delivery of data files to multiple recipients?

I have a need to transfer files from a single, centralized source to a several hundred client machines. We currently use UDPCast to do this sort of thing, but are looking for more of a standards based approach to solving the problem. I have been reading through the RTP RFC (1889) and notice that the protocol was primarily developed for...

WEB based application with desktop integration - technologies?

This is a general question concerning technology decisions for a product development. My aim is to develop a web based remote support (desktop sharing application) with audio and video communication. My ideal solution would be to develop it as web product meaning that the client side always run in the browser. Client technology would ...

Streaming via RTSP or RTP in HTML5

I'm building a web app that should play back an RTSP/RTP stream from a server (http://lscube.org/projects/feng). Does the HTML5 video/audio tag support the rtsp or rtp? If not, what would the easiest solution be? Perhaps drop down to a VLC plugin or something like that. ...

GUI Control For Audio Presentation

I need GUI control for audio file presentation. The language is not very important but it should run on windows platform. I should be able to :- load the file play the sound put and move markers across the audio bar. it would be nice if it can load itself from RTP wireshark captures (and not wav files). An example may be seen in ...

Detect MPEG4/H264 I-Frame (IDR) in RTP stream

I need to detect MPEG4 I-Frame in RTP packet. I know how to remove RTP header and get the MPEG4 frame in it, but I cant figure out how to identify the I-Frame. Does it have a specific signature/header? ...

udp socket options for sendng RTP

I am opening socket on windows platform for sending RTP voice packets. The application is softphone. What preferable options should be set on this socket. ...

Reasons to use RTP when streaming a pre-existing file?

The only reason I could think of for using RTP to transfer a pre-existing file is if you're trying to monitor the amount of time a user is streaming the file, like if you're running a time-based On-Demand website. The other streaming-solution i know of is to use HTTP to upload a media file, then providing a client to progressively play t...

H264 RTP packet parsing

I am looking for source code of RTP Payload Format for H.264 Video according to RFC(3984). It would be great if someone can point out it. Also I am looking for wireshark plugin which can show me the packet decoding of h264. Thank you guys in advance. ...