How to understand binary data transferring between flash client and server? How do rtmp-servers work? How is video transferring between server and client? What's the difference between using Socket and NetConnection? Is rtmp-server just a socket server supporting amf serialization? I'll be very happy, if someone explains me these aspects.
View 1 RepliesI'm writing a real-time app using a Flex/Flash client and my own server running on Linux.
I'd like to be able to send data from the Flex client in real time (in response to user actions). I've tried the following methods:
flash.net.NetConnection.call()
flash.net.sendToURL()
flash.net.Socket.write() followed by flash.net.Socket.flush()
[Code].....
The second nc.call() above won't send data to the server until the ACK for the first call has been recieved. I'd like to be able to send data immediately without waiting for that ACK.
If the round-trip time to the server is long (e.g. 300ms) I can only send data to the server 3 times a second. Ideally I'd like to be able to send data up to 30 times per second, but this is only possible with a RTT of around 30ms at the moment.
It doesn't matter if the server itself gets the data 300ms late - I realise I can't beat the speed of light.
Is there any way to get the Flash Player to send data without waiting for an ACK? In other environments this is done by setting the TCP_NODELAY flag on the socket but it seems I don't have that level of control in Flash/Flex.
Update: I think I may have stumbled on a workaround for this. I think the Flash Player tries to get the host browser to give it a separate TCP connection for each NetConnection object, subject to the connection limit for each browser, e.g. 2 for IE. The connection limit can be got around by using sub-domains (haven't tried this yet) so hopefully it should be possible to get closer to real-time behaviour by using a pool of NetConnections.
Let's say user A connected to the FMS server with an RTMFP NetConnection, and user B connected to the server with an RTMP connection. If I want to connect them together, would it be better if I also connect A to an RTMP NetConnection to the server?
View 4 Repliestoday I install fms3.5 on my pc.
1)I can use rtmp://localhost/vod/mp4:sample2_1000kbps.f4v , it works ok. But when I use rtmp://192.168.8.3/vod/mp4:sample2_1000kbps.f4v, I got Netconnect.connection.rejected. 192.168.8.3 is my fms server IP.
2)When I set fms use port 1935 and 80, rtmp://192.168.8.3/vod/mp4:sample2_1000kbps.f4v works ok on other pc. But using wireshark(Wireshark is a network protocol analyzer for Unix and Windows.) I found , the flash player connect 1935 port at first, it send "connect",the server replay "connection.rejected" and "no scope "vod" on this server". Than it connect to 80 port, so I see the video is not send throw 1935 port with rtmp, but throw 80 port with rtmpt. Why? How can I see video throw rtmp?
I'm creating a client-server game. My client is a flex based game, and my server is erlang server. At the beginning, when I test directly my flex client in flash player, I can establish a connection easily to my erlang server through socket connection. And both can exchange data with no problem. The problem rise when I deploy my flex app at Apache http server, and running it using a browser by calling [URL] my flex socket sends message requesting for a crossdomain policy to my erlang server. So I create an xml message that represent a crossdomain policy, and send it back to my flex app as a response for that request.
Yet still I can't establish any permanent socket connection between my flex client and my erlang server. I know this because I add listener on my flex socket that will modify its internal state to CONNECTED, if a connection between client-server has established.
Know how can i get the Adobe RTMP SDK or any other SDK which implement the RTMP protocol.[url]...
View 1 RepliesUsing flex 3, how do i set a timeout for a NetConnection?
code sample:
nc=new NetConnection();
nc.addEventListener (NetStatusEvent.NET_STATUS,checkConnect);
rtmpNow="rtmpe://host/test/test1";
nc.connect(rtmpNow,fuid,gameName);
Is it possible to use the flash.net.NetConnection object to connect to my Flash remoting enabled web application over HTTPS within Tomcat or any other servlet container?
I am using the SpiceFactory cinnamon project for amf remoting and have searched for examples of using HTTPS but see only the reference to a proxy type in the NetConnection object.
If someone could provide a reference or example that would be awesome. Or if it is not possible using the flash.net.NetConnection object are there any recommendations of how to configure HTTPS for the spicefactory cinnamon library.
The ActionScript 3.0 Reference says the following about flash.net.NetConnection:
The NetConnection class creates a two-way connection between a client and a server. The client can be a Flash Player or AIR application. The server can be a web server, Flash Media Server, an application server running Flash Remoting, or the Adobe Stratus service. Call NetConnection.connect() to establish the connection.
Does this mean I make a regular HTTP connection to any web server using an NetConnection object? I am a little confused about this as further down the section on the connect() method says connect(): Creates a two-way connection to an application on Flash Media Server or to Flash Remoting, or creates a two-way network endpoint for RTMFP peer-to-peer group communication....Pass an "http" URL to connect to an application server running Flash Remoting.. So, the application server has to have Flash Remoting?
Since I have to get data from other red5 application. is it possible using multiple netconnection in one mxml application?
View 1 RepliesI'm working on a game whose background has many layers that each scroll at different speeds.
Inside each layer I have a Sprite, I've started using graphics.beginBitmapFill, but what I've found is that the graphics.clear() function doesn't actually clear the contents set by the previous call to graphics.begin.BitmapFill. Each frame, I adjust the matrix to shift the layer as needed. Then, I call graphics.clear() and graphics.beginBitmapFill() with the adjusted matrix. Since my layers have alphas in the bitmap, I can see the contents that was drawn the previous frame.
When I send number (int)52 s.Send(BitConverter.GetBytes((int)872415232));, flash show me trace(socket.readInt()); 872415232 If i send 872415232, flash show 52.Why? And how it fix?
View 1 RepliesI am trying to learn the new services method in flex 4. but i cant get it work. A test oparation near the service in flash builder 4 works. But when i run the code i get NetConnection.Call.Failed: HTTP: Failed.
CODE:
PHP
<?php
class AuthService {
public function login($username, $password) {[code].......
We had FMS2 installed before and the paths to all our videos are like rtmp://ServerName/sites/.... (the default path on FMS2) Now we upgrade to FMS4 and we would like to keep these paths the same because we have many HTMLs that reference these videos. However, the default path on FMS4 is rtmp://ServerName/vod/... Is there a way to change "vod" to "sites"?
I tried to change VOD_COMMON_DIR in fms.ini from /install_dir/webroot/vod to /install_dir/webroot/sites, and also changed the document root in httpd.conf, but rtmp://ServerName/sites/ is still not working.
I am Using Flex as my client and java as my server. Using Weborb in remote host. At times I recieve this error.
faultCode:Client.Error.MessageSend
faultString:'Send failed'
faultDetail:'Channel.Connect.Failed error NetConnection.Call.BadVersion: :
[code].....
I want to flex connect to a WCF with RTMP. is there an abillity to create RTMP custom binding in WCF?
View 1 RepliesI'm writing a Comet-like app using Flex on the client and my own hand-written server.
I need to be able to send short bursts of data from the client at quite a high frequency (e.g. of the order of 10ms between sends).
I also need the server to push short bursts of data at a similarly high frequency.
I'm using NetConnection.call() to send the data to the server, and URLStream (with chunked encoding) to push the data from the server to the client.
What I've found is that the data isn't being sent/received as soon as it's available. For example, in IE, it seems the data is sent every 200ms rather than as soon as NetConnection.call() is called. Similarly, URLStream isn't making the data available as soon as the server is sending it.
Judging by the difference in behaviour between the browsers, it seems as though the Flash Player (version 10) is relying on the host browser to do all the comms. Can anyone confirm this? Update: This is very likely as only the host browser would know about the proxy settings that might be set.
I've tried using the Socket class and there's no problem with speed there: it works perfectly. However, I'd like to be able to use HTTP-based (port 80) connections so that my app can run in heavily fire-walled environments (I tried using a Socket over port 80, but that has its problems).
Incidentally, all development/testing has been done on an internal LAN, so bandwidth/latency is not an issue.
Update: The data being sent/received is in small packets and doesn't need to be in any particular format. For example, I might need to send a short array of Numbers, and this could either be encoded in AMF (e.g. via NetConnection.call()) or could be put into GET parameters (e.g. using sendToURL()). The main point of my question is really to see whether anyone else has experienced the same problem in calling NetConnection/URLStream frequently, and whether there is a workaround (it's also possible that the fault lies with my server code of course, rather than Flash).
I need to override the call method from NetConnection class, the signature of the method is:
[Code]...
I've been stucked with this requirement for a long time.And how can I do that?
View 1 RepliesI have planned to design chat application in flex 3. i need rtmp to be used for it.Now the thing i need is i want to install in my server so that i can be used it for testing.
View 1 RepliesHaving this code: nc.call("test", new Responder(onCallSuccess,onCallFailed), "user1");
and
public function onTest(id:String):void {
Alert.show("test called from server");
}
Results in: ReferenceError: Error #1069: Property onTest not found on flash.net.NetConnection and there is no default value`.data is send from server application correctly but flex cannot "eat it"
Am working in flex video player with RTMP.How to skip the video file to the middle of a video without having to download the whole file using RTMP.Where i want to put the Video file(FLV). Red5 server location or any other folder.Where i want to put the flex project out put file Red5 server or any other server like XAMPP. How Can i skip the frames in flex using RTMP(*red5*)..
View 1 RepliesIs it possible to clear a Flex flash.utils.Dictionary? I have a Dictionary that I want to clear (remove all elements).
View 3 RepliesLive streaming and a buffer on a NetStream do not mix. Why? The docs don't say you can't do this.The playback gets hosed. Buffer is supposed to fill to what you set it to before playing. Instead though, about half the time, the player starts playing right away and disregards the buffer time you've set. Then you get caught in short buffering and rebuffering cycles that degrades the playback experience.
Give it a shot yourself. Here is the simplest of live streaming video players. No frills. Just connect it to your live stream by changing the defaultURL string and stream name in the ns.play() statement.
Run it in Flex debug mode. It will check and print the ns.bufferLength property every second. The buffer is set to 20 secs currently. Last time I ran it, I never made it above 2 seconds in the buffer. Player started playing right away instead of buffering the full 20 secs first. Sometimes you get to the full 20 and sometimes not.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
initialize="init()">
<mx:Script>
[code]....
There is one chat room which you can login through the URL:[URL]. user:lqbl password:790420 Now I am developing one RTMP client for chatroom with Flex builder 3 and my client runs with flash player not IE. When I execute netConnection.connect, the FMS server reject my request. I catched the RTMP connect packet with sniffer. the difference is the swfUrl and pageUrl are setted value when login the chat room through upper URL. But no value for my client. So I guess the FMS reject my client since swfUrl and pageUrl. how to set them in Flex builder 3?
View 0 RepliesI'm looking for a way to stream video from the desktop to an FMS installation. I know that in ActionScript, it's possible to do:
netStream.attachCamera(camera);
netStream.attachAudio(mic);
but not:
[code].....
Where are the signed, cached flex libraries on a windows / mac / linux system? They don't appear to be in my browser cache... so where is adobe keeping them? I found the files. But can I clear the cache? After trashing the files in windows, I don't see the files get downloaded again (with fiddler).
View 2 Repliesthere's no way to clear a date after it has been inserted! I had to add an ugly button near it to clear it programmatically..
View 1 RepliesIn main.mxml I have a bunch of textInput controls a combobox and a few checkboxes that I would like to be able to clear with some sort of loop. Right now, I do it like this:
[Code]...
I read a post on SO that recomended adding the controls to an ArrayCollection with the creationComplete event. I tried that and it worked fine but it was not any more elegant than what I have now. All of these controls are in mxml format and not generated with AS by me. I also tried looping like this:
I can't get past that part though. I cannot find a way to reference the values of the control.
I have an editable datagrid with a dataprovider which is basically Numbers. Is it possible to delete a value? When I do it it puts a 0 in that cell but I really need an empty value, like a Null or a NaN whose are going to be cleaned later with a labelFunction. BTW I also need the cells to keep the 0 if needed to.
View 1 Replies