Flex live Video Encoding

Hai.
I am developing a video chat application in flex. Can anbody
help me in the video encoding part?
I need the video to be encoded using ON2VP6 or H264 to get a
better quality. How it can be done live using flex?
Thanks,
VivekVijayan

The problem is, you need a clientside technique to encode the video-chat-stream with a useable codec, cause the client/user have to upload this video(chat)-stream to the server, mostly with a small user bandwidth.
Actually flash supports only this standard codec for encoding the user video input, wich requires a high bandwith and represents still a real bad quality.
Thats a bad fact for adobe, cause this should be natural for such an "media software/system".
Anyway, someone has a solution for encoding the clients webcam input with a common codec before streaming to the media-server?

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Jerkyness observed when live video encoded on FMLE

Hi All,
I am trying to encode live stream using FMLE 3.2 on mac mini.
Input is of 1.5mbps with 640x480. It is coming throgh canopus and firewire to mac mini.
I have set my bitrates to
1. 800kbps H264 main @3.1 resolution 640x480
2. 500kbps H264 main @3.1 resolution 480x360
3. 300kbps H264 main @3.1 resolution 320x240
My FMS parameters are, FMS URL:rtmp://localhost/live , streamname : livestream%i
The live video encodes fine when i have only 1 stream encoding. But jerkyness observed when i have 3 bitrates enabled on encoder. What could be the issue?
I thought i can use FMLE to adaptive streaming.
I will be using 3 different streams for pc and mobile. Please let me know if i have any issues on the encoder side
Any pointers would be useful.
Thanks.

For VP6 MBR:
640x480 size or below; 2 or 3 streams at 25 fps: Dual Core (Core 2 Duo 3GHz, 2GB RAM)
768x576 size; 3 streams at 25 fps: 8 Core (Xeon 3GHz, 3.25 GB RAM)
Input stream 640x480 @25 fps; 3 output streams: 76x144 @25 fps_150 kbps , 320x240 @25 fps_300 kbps and 640x480 @25 fps_700 kbps: Dual Core 3GHz, 2GB RAM
For H264 MBR:
320x240 size ( Main or base profile); 3 streams at 25 fps: Quad Core Xeon 2GHz, 4GB RAM.
640x480 size ( Main or base profile); 2 streams at 25 fps: 8 core Xeon 3GHz, 3.25 GB RAM.
768x576 size ( Main or base profile); 2 streams at 25 fps: 8 core Xeon 3GHz, 3.25 GB RAM.

Live Video encoder for Mac. Does it exist?

Looking to d a live video stream. Would like to use Vp6 I do not think Adobe had a Flash video encoder for the mac.
As always, thanks for your time and help.
Mike

There is no Airscan :-)
but you can scan wirelessly on any your OS compatible network scanner of MFP printer with a scanner.
This has to be connected to your network either via WiFi or Eth cable.

Live Video encoding through a flash-enabled web page?

Flash Media Encoder is a great stand-alone application, but
I'd like to know how to encode live video directly using a
flash-enabled web page. E.g., User visits web site and can send his
or her live video from their camera directly to the server. I've
been looking for examples, sample code, and even 3rd party
components. Any pointers would be appreciated!

I asked the same question in a post I made yesterday, then noticed your post which predates mine by
a year and a half. Unfortunately no answers, though I was able to find this page on the Flash Media Server documentation:
http://help.adobe.com/en_US/FlashMediaServer/3.5_Deving/WS5b3ccc516d4fbf351e63e3d11a0773d5 6e-7ff0.html
The first paragraph is about using Flash Media Live Encoder, but the rest of describes how to code a custom capture application in action script that will capture the video and send it to the Flash Media Server. And there's code samples with the article. Since the code compiles an swf file, I imagine all you have to do is serve the page through any web server (the article places it in a FMS application directory) and you have live video streaming. Note that you need a media server (Wowza is an interesting alternative to FMS), but I understand that Flash Player 10 can do peer-to-peer video with another Flash Player 10. Hope this helps, this is what I'm going to try.

Preview Live Video Encoding Settings

I am working with an AS2 application that was put together a while back. The app is used to publish a live video stream to FMS. I am using the Camera class to connect to a local camera (Camera.get()) and to setup the encoding specs for the stream that is to be published to FMS. To preview the camera signal, I am using Video.attachVideo() to attach that camera output to a Video instance on the stage. This is all working greta for me.
But here's the thing. The video stream that is being pumped to the Video instance is the direct signal from the camera. Nice and clean. I seem to remember that there is a way to view the video signal with the encoding settings applied to it. It's just one little line of code, if I remember correctly. However, I can't seem to find the code that will do that.
Can anyone quickly share the code that will allow me to preview the encoded video stream?

bump

How to play live Video Stream with Flex?

I'm trying to get Flex Builder 3 to play a live video stream with Flash Media
Server and Flash Live Media Encoder.
I'm able to stream pre-recrorded (vod) flvs in flex from flash media server.
I'm able to stream live video using Flash/FMS/Flas Live Media Encoder, but not
with Flex.
This code streams pre-recorded Video on Demand flvs, but not live streams:
If I change source to "rtmp://localhost/live/livesream.flv, I get nothing.
What am I doing wrong?
<?xml version="1.0"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:HBox>
        <mx:Label text="RTMP FMS 2.0"/>
        <mx:VideoDisplay
            autoBandWidthDetection="false"
            source="rtmp://localhost/vod/Legend.flv"/>
    </mx:HBox>
</mx:Application>
Oh and sorry for the double post. I didn't know there was a seperate FMS forum.

That worked! Thanks *very* much. Stupid of me to forget to set the live attribute to true. Also removed the .flv. BTW: what video component do you prefer?
Here's the working code:
<?xml version="1.0"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:HBox>
        <mx:VideoDisplay
            live="true"
            autoBandWidthDetection="false"
            source="rtmp://localhost/live/livestream"/>
    </mx:HBox>
</mx:Application>

Live streaming of a non-Flex View video from PC to TV via any FiOS capabilities

Hey all -
Is it possible to, using any capability of FiOS/Flex View, stream a live video from my laptop to my TV? There is an annual competition from Europe I watch every year (only available on the web to US viewers) and it requires a special plug-in so I can only view it from my laptop, unless of course I use an adapter to plug it into my TV (which I can, but prefer not to do if FiOS/Flex View has such an option).
Going through the Manager software, I couldn't locate anything like that, but for all I know I've just overlooked it or maybe someone has figured out a way to do this successfully.
Thank you all in advance!
Cheers,
Eneg
Solved!
Go to Solution.

I do apologize, but there is no way for that to happen. The Flex View or Media Manager software does not have the ability to stream live video broadcasts to your television. Looks like the adapter you were talking about is the best way to go. Enjoy your competition!
Anthony_VZ
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Live video feed using Flex/Flash

Hi,
I have a question if someone doesn't mind giving me a "yes"
or "no" answer, please.
My developers have created a program for me that lets me
broadcast my LIVE web cam feed right on my web site in real time so
I can provide customer support and allow me to engage with web site
visitors. We are using Flash, Flex, and Adobe AIR.
The broadcast window size is 320 x 240 pixels. The problem is
the frame rate. I am only able to broadcast between 5 - 9 frames
per second whereas other people have been able to broadcast at
around 14 FPS.
Question: is it possible to use these applications
(Flash/Flex/Adobe AIR) to stream live video at 320 X 240 at frame
rates at least 24 or higher?
Thanks in advance for an answer. I don't expect a solution.
Just a yes or no from some experience(d) developer(s).
All the best.
Rodney

Lucas,
Here's what I do for multi-camera live shoots:
1. Connect all cameras to a switcher/DVE (looped through preview monitors) - I use a Panasonic WJ-MX50 or Sony DFS-300 Since you have five cameras, you'll obviously need a switcher with more inputs, or gang two of the above together. You'll need a switcher capable of the signal output your cameras offer, ie: composite, Y/C, component, triax .. whatever.
2a. Output of switcher goes to DVCam VTR.
2b. Audio is fed through a mixer and output to the VTR.
3. Firewire out from the VTR to the Mac/FCP.
4. In FCP, choose "Non-Controllable Device" and use Capture Now.
5. Use one of the analog outputs from the VTR to feed the projector(s) and the another analog output to a program monitor for the TD.
I always run safety tapes in each camera while the VTR is recording a switched master tape in case there's a problem with the capture in FCP (it can happen).
I also equip each cam-op with a 8" or 9" monitor, typically using the camera's composite output. And everyone is able to communicate using a Clear-Com system.
In 5 years, doing several shows per year, the capture in FCP has only failed three times and all of those times were when I was using a laptop. Whenever I've used my old G4 tower, capturing to one of the internal drives, its worked flawlessly each time. Fortunately, having a Master DVCam tape saved the day. The camera safety tapes are used just in case of a bad switch by the TD (usually me).
-DH
PS I should add that if you're feeding multiple projectors, you'll need a simple DA.

Live Video Without Flash Media Encoder

How to create server side script in FMS3 to make Live Video
Without FME

Why ask in the Flash Player forum; wouldn't it be more logical to post in the Flash Media Live Encoder forum?

Streaming Live Video using Flash Media Encoder/Flash Media Streaming Server

We currently get a video feed from local cable channel that gets streamed live to our internet website. It gets encoded first on our Windows 2003 server running Windows Media Encoder and then gets published on another Windows 2003 server running Windows Media Services. We are trying to replace these two servers with another solution and the two things driving this project are:
1. These two servers are coming to an end of life cycle so we need to replace the hardware and upgrade the OS.
2. They currently only support Windows compatible file formats. Just like other organizations out there, iPAD users are popping up and they want to view these video streaming from their iPAD.
That's why we are looking at Adobe Flash Media Encoder3 and Flash Media Streaming Server 4.5. My questions for the experts out there are:
1. Can Adobe Flash Media Encoder and Adobe Flash Media Streaming Server can replace our current solution?
2. Do we need both Flash Media Encoder and Flash Media Streaming Server or can Flash Media Streaming Server also can encode video feed?
3. Can Flash Media Encoder and Flash Media Streaming Server can run on the same server?
4. Our Windows Media Services server also has few on-demand publishing points along with a live video streaming. Can above mentioned Adobe products support having live streaming publishing point along with on-demand video publishing points?
5. Does Adobe Flash Media Encoder only support Flash and Quicktime or does it also support .wmv?
I called the sales to find the answers to these questions but he basically read the features listed on the Adobe product website and couldn't really answer these questions.
Any help in find the answers to these questions will be greatly appreciated.
Thanks you.

FYI - I was able to do it by using the "onFI" handler of the embedded NetStream object.
myVideo.addEventListener(fl.video.VideoEvent.STATE_CHANGE, onVideoStateChange);
function onVideoStateChange(evt:fl.video.VideoEvent)
// trace("State = " + evt.state);
if ( evt.state == "playing" )
if (!ns)
ns = myVideo.getVideoPlayer(evt.vp).netStream;
ns.client.onFI = onFIHandler;
function onFIHandler(infoObj:Object):void
var ts:String = infoObj.st;
trace("system time: " + ts);
ExternalInterface.call("updateTimeStamp", ts);

Encoding live video for the Wii?

I notice that FME and FMLE only allow VP6 and H264 as the
video encoding options.
I understand that the Nintendo Wii, with its Opera browser,
can play back Flash Video that is in the Sorenson Spark codec. Is
it therefore possible to encode LIVE video using Sorenson Spark
that could be played back in the Flash player on the Wii?
Or, is it the case that the version of Flash that the Wii
supports will only playback pre-recorded Sorenson Spark video and
not live streams?
Thanks,
D.

When live streaming was first introduced with FCS you would
utilize a web based encoder that utilized the spark codec and had
the same look and feel as the current desktop based software. This
was available from CDN's but could be built within flash as well. I
found a simple one which will achieve connect and publish to a
server for you.
http://www.flvhosting.com/download/index.php?file=1livestream_by_FLV_Hosting.zip
This one is simple but others do exist which allow setting
framerates, video source, etc.
Kevin Towes wrote a great example of this here.
http://www.adobe.com/devnet/flash/articles/live_video_switcher_print.html
Adam Walsworth

Is it possible to stream live video & audio from device cameras & mics to a server?

I would like to know if I can use flash builder to stream live video and audio from Android & IOS device cameras and mics to a media streaming server such as Flash Media Server or Wowza? I know the Android & IOS APIs allow for this but can it be done using Flex/Actionscript? The key here is "live" so you wouldn't want to have to wait for video and audio files to complete on the disk before sending it out. Ideally you would send it out via RTMP or HTTP streaming to stream out but any stream would do since once it gets to the server you can encode it.

Hi
Yes, It's can do but There is a problem on IOS 8 when Switch Camera, Microphone is muted and Sound return when I press home button from my iphone out and press app again for few second
You can use as same as flash desktop video streaming for coding in mobile.
Good luck
Zing1911

Do not created live video stream on RTMP

Hello, all.
Whats wrong in this code:
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                       xmlns:s="library://ns.adobe.com/flex/spark"
                       xmlns:mx="library://ns.adobe.com/flex/mx" applicationComplete="windowedapplication1_applicationCompleteHandler(event)" width="644" height="666">
    <fx:Script>
        <![CDATA[
            import mx.events.FlexEvent;
            import org.osmf.events.MediaPlayerStateChangeEvent;
            import org.osmf.events.TimeEvent;
            import spark.components.mediaClasses.DynamicStreamingVideoSource;
            private var nc:NetConnection;
            private var ns:NetStream;
            var camera:Camera;
            protected function windowedapplication1_applicationCompleteHandler(event:FlexEvent):void
                // TODO Auto-generated method stub
            private function videoDisplay_creationComplete():void {
                camera = Camera.getCamera();
                if (camera) {
                    videoDisplay1.attachCamera(camera);
                    videoDisplay1.autoPlay;
                    SetNetworkStream();
                else {
                    ErrorMessage.text += "You dont have a camera.\n";
            import mx.collections.ArrayCollection;
            [Bindable]private var microphoneList:ArrayCollection;
            protected var microphone:Microphone;
            protected function cbMicChoices_creationCompleteHandler(event:FlexEvent):void
                microphoneList = new ArrayCollection(Microphone.names);
                cbMicChoices.selectedIndex=0;
            private var nsClient:Object;
            private var video:Video;
            private var meta:Object;
            protected function SetNetworkStream():void{
                nsClient = {};
                nsClient.onMetaData = ns_onMetaData;
                nsClient.onCuePoint = ns_onCuePoint;
                nsClient.onBWDone = ns_onBWDone;
                nc = new NetConnection();
                nc.client=nsClient;
                nc.addEventListener (NetStatusEvent.NET_STATUS,checkConnect);
                nc.connect("rtmp://localhost/live");
            private function checkConnect (event:NetStatusEvent):void
                if (event.info.code=="NetConnection.Connect.Success"){
                    ns = new NetStream(nc);
                    ns.attachCamera(camera,VideoQuality.value);
                    ns.attachAudio(microphone);
                    ns.publish("livestream","live");
            protected function vpCompleteHandler(event:TimeEvent):void {
                TextArea1.text = "Video complete - restarting."
            protected function vpMediaPlayerStateChangeHandler(event:MediaPlayerStateChangeEvent):void {
                if (event.state == "loading")
                    TextArea1.text = "loading ...";
                if (event.state == "playing")
                    TextArea1.text = "playing ...";
            private function ns_onMetaData(item:Object):void {
                trace("meta");
            private function ns_onCuePoint(item:Object):void {
                trace("cue");
            private function ns_onBWDone():void {
                trace("BWDone");
        ]]>
    </fx:Script>
    <fx:Declarations>
        
    </fx:Declarations>
    <s:TileGroup horizontalGap="12" verticalGap="12" left="10" right="10" top="10" bottom="10">
        <mx:Form dropShadowVisible="true" borderAlpha="1.0" borderVisible="true" borderStyle="solid" width="300">
            <mx:FormItem >
                <mx:VideoDisplay id="videoDisplay1"
                                 creationComplete="videoDisplay_creationComplete();"
                                 width="200"
                                 height="200" horizontalCenter="0" verticalCenter="0" dropShadowVisible="false"/>
            </mx:FormItem>
            <mx:FormItem >
                <mx:Button id="RefreshLocalCamera"
                           label="Refresh local Camera"
                           click="videoDisplay_creationComplete();" />
            </mx:FormItem>
            <mx:FormItem>
                <s:HSlider id="VideoQuality" width="143" stepSize="1" minimum="0" maximum="100" value="50" />
                <s:Label text="Quality"/>
            </mx:FormItem>
        </mx:Form>
        <mx:Form dropShadowVisible="true" borderAlpha="1.0" borderVisible="true" borderStyle="solid" width="300" height="132">
            <mx:FormHeading label="Remote camera:"/>
            <mx:FormItem >
                <s:VideoPlayer id="VideoPlayer1" width="200" height="200" autoPlay="true"
                                 complete="vpCompleteHandler(event);"
                                 mediaPlayerStateChange="vpMediaPlayerStateChangeHandler(event); ">
                    <s:source>
                        <s:DynamicStreamingVideoSource id="Live1"
                                                       host="rtmp://192.168.0.21:8008/live">
                            <s:DynamicStreamingVideoItem id="livestream1"
                                                         streamName="livestream"
                                                         bitrate="150" />
                        </s:DynamicStreamingVideoSource>
                    </s:source>
                    </s:VideoPlayer>
                <s:TextArea id="TextArea1" width="200" height="25"/>
            </mx:FormItem>
        </mx:Form>
        <mx:Form dropShadowVisible="true" borderAlpha="1.0" borderVisible="true" borderStyle="solid" width="300" height="132">
            <mx:FormHeading label="Local microphone:"/>
            <mx:FormItem label="Volume">
                <s:HSlider width="143"/>
            </mx:FormItem>
            <mx:FormItem >
                <s:ComboBox id="cbMicChoices" dataProvider="{microphoneList}" selectedIndex="0" dropShadowVisible="true" creationComplete="cbMicChoices_creationCompleteHandler(event)"/>
            </mx:FormItem>
        </mx:Form>
        <mx:Form dropShadowVisible="true" borderAlpha="1.0" borderVisible="true" borderStyle="solid" width="300" height="132">
            <mx:FormHeading label="System message:"/>
            <mx:FormItem >
                <s:RichText id="ErrorMessage" text="" />
            </mx:FormItem>
        </mx:Form>
    </s:TileGroup>
</s:WindowedApplication>
Video in VideoPlayer1 does not play. But play if live video created by Flash Media Live Encoder.
All my developer environment is described in this page - http://www.vb-net.ru/Flex_Video/index.htm
please, help

I'm a little confused here... do you want to upload a
pre-recorded video file, or have a live broadcast (like from a
webcam?)
If it's live broadcast, you'll want to use FMS.
If it's a prerecroded video, FMS might be a bit of expensive
overkill. You could just as easily use PHP to begin playing the
video from a given byte (see
http://flashcomguru.com/index.cfm/2005/11/2/Streaming-flv-video-via-PHP-take-two
)

Live video application for multiple users with RTMFP

Hi
We developed a live video application in Flex that uses RTMP. In one session up to 5 users are able to publish their stream and up to 20 users can join a group. For saving bandwidth costs and making use of lower latency with UDP we check RTMFP. From reading the documentation it seems that RTMFP multicast is the way to go.
Our frist results and additional research surfaced two 2 issues:
- Streams have a live delay (which seems to be multicastwindowduration + buffertime) that takes up to 30 sec to disappear but seems to increase again
- The application allows one user to change the size of a published video (camera.setMode). This causes a freeze with RTMFP for the publisher and all subscribers. Changing the size several times can cause to make the video work again for the publisher and subscriber (some bugs are already reported here)
For solving these issues I wonder:
1.) Is RTMFP multicast able to deliver a low latency solution that is needed for face to face v/a communication?
2.) if yes - are there any settings suggested by Adobe for the RTMFP NetStream multicast properties (like multicastwindowduration property) and if not can you give me some hints what would work for reduce the latency that face to face communication gets acceptable?
3.) How to deal with the setMode issue - does this happen because I misconfigured RTMFP or is this API not supported? Will unpublish and publish solve the issue (what api series do I need to use to do so?)
Best regards,
Marc

1) any practical use of P2P multicast will have a delay measured in seconds. it shouldn't go to 30 seconds unless you have a large NetStream.bufferTime.
2) i strongly recommend against changing the multicast stream parameters. they all interact with each other. decreasing the window duration will decrease the effective reliability of the stream, by reducing the amount of time to receive all of the fragments of the stream as they pass through the P2P group -- especially when people join or leave the group, which can disrupt the low latency "push" trees that are constructed in the group.
3) you should be able to change the encoding parameters on the fly without a major disruption. are you using H.264 or Sorenson Spark? it's possible that your camera doesn't like to have its capture size changed and it is freezing temporarily. i'm not having any trouble changing the capture size with my camera (and using H.264). i recall there being some issue with changing the frames-per-second on the fly (at least some time ago, and i don't remember what the issue is) -- there was enough of an issue that i disabled it in my little app while actively publishing.

What are the requirements to build a live video chat application?

I am looking into making a live video chat application. I
have seen several examples on the web so my question is not "how"
to do it. My question is "what do I need" to do it?
It seems that all the examples use Flex Data Services and
then some sort of back-end communication server. The cost of FDS is
well beyond what the client can afford so my question is: is it
necessary? Is there a way to build this sort of application without
FDS? Can I get live video streaming to work using only what is in
the SDK? I know nothing about data streaming, real-time
communication, etc. and have no idea how to implement this outside
what I have seen in the online articles so far.
If there are any other forums that are more appropriate to
this question, please direct me there. It is not a FDS exclusive
issue and I am just starting to look into it. I am starting here
because we would like to use Flash Player for the client-side
application.

I am looking into making a live video chat application. I
have seen several examples on the web so my question is not "how"
to do it. My question is "what do I need" to do it?
It seems that all the examples use Flex Data Services and
then some sort of back-end communication server. The cost of FDS is
well beyond what the client can afford so my question is: is it
necessary? Is there a way to build this sort of application without
FDS? Can I get live video streaming to work using only what is in
the SDK? I know nothing about data streaming, real-time
communication, etc. and have no idea how to implement this outside
what I have seen in the online articles so far.
If there are any other forums that are more appropriate to
this question, please direct me there. It is not a FDS exclusive
issue and I am just starting to look into it. I am starting here
because we would like to use Flash Player for the client-side
application.

Flex live Video Encoding

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