Does anyone know if Flash Media Server can be configured to reduce the image quality of a publish stream if available bandwidth goes down or there are delays in the connection?
When I (locally) play back videos recorded on poorer/intermittent connections, video frames are dropped, so the image freezes up.
We have an application that is using FMS to share slides (swf,jpg, etc) with another client. We added a video as an option. We would like to verify as often as possible the bandwidth quality between communications in order to suggest the user to close video if we notice bandwidth is not optimal.
We've been experimenting doing a bandwidth detection every 60 seconds, but I am wondering if there are specific guidelines to do this for live video, like how many times one should verify bandwidth? Is it ok to take one reading or should we take a few readings and then average out?
i am currently playing around with a flash media server trial in combination with the flowplayer.All in all i am testing the performance and general functionality for the company i work for.Anyways, i am trying to search a way to check the bandwidth of a client ( server sided ) and redirecting him to the right video stream.Sure this could be done by the backend flash application, but its out intention to perform this check server sided.
View 4 RepliesI have made a sample application for publishing video through FMS using as3.In that I had used the same code as given in the sample provided by the adobe,
m_nc = new NetConnection("rtmpt://localhost:1935/Test");
private function onNetStatus(event:NetStatusEvent):void {
switch (event.info.code) case "NetConnection.Connect.
[code].....
Is anyone familiar with the function of the Flash Media Server where it can detect a user's connection speed and deliver the appropriate quality version of the video on the user bandwidth detection?
View 1 RepliesI've just been asked to create a video player which automatically chooses the correct bitrate video to stream by detecting the bandwidth.I have no experience creating a video player so I'm looking for links/resources to do some research on the topic.Has anyone here created a video player in Flash? Would it be better to create in Flash or Flex?Once again, I have no prior knowledge in this type of creation and could use an experienced developer's opinion on what the first step is towards progress.
View 3 RepliesI want to deliver HD Video in different bitrate based on enduser's bandwidth.Also enduser should able to change the bit rate like 200p, 700p, 1500p.
View 1 RepliesWe are having a little problem implementing bandwidth detection with FMS, for some reason when enable it, bandwidth consumption spikes significantly I am wondering why? and if there a white paper somewhere that would talk about how properly implement this feature.
View 4 RepliesI'm creating a video chat application, and no matter what combination of Camera/Microphone/NetStream properties and functions I use, I cannot get high quality video/audio. I get occasional audio latency, pixelated video, occasional frozen video and the degree of each depends on the combination of properties/functions I set/call.
Others such as TokBox, TinyChat, Chat Roulette, etc. have achieved great video/audio quality with FMS, what is the secret? At least point me in the right direction, because right now I'm not impressed with FMS ability to provide a good video/audio experience. BTW, I'm using a P2P mesh using a group specifier, not NetStream.DIRECT_CONNECTIONS.
I cannot get good quality in video chat. I have 3mbps line but i did not get good quality video, and my video is too slow. Also i will subscribe my FMS on influxis server.
View 2 RepliesI'm currently working on a webcam recorder to record high quality video. I had the recorder working before, but the video quality was quite poor. Instead I'm trying to use a client side buffer and then upload the buffer after recording has stopped. I thought after I unattached the video and audio from the NetStream that either a NetStream.Buffer.Empty or NetStream.Record.Stop event would be sent when the buffer was finished uploading.
What is actually happening after I start recording is two NetStream.Record.Stop events are being sent in a row, so recording never really happens. Also, on the server side I'm trying to save a user name and password into a variable, but I'm not sure how to go about doing that since the application script is just a bunch of callback functions.
I'm trying to record a stream from a webcam using FMS4 developer edition. The streams are recording on a linux box in .flv files. These files though have problems.
1 - The video quality is terrible. Fuzzy/blocky. Any kind of motion looks awful. Is there any way to improve this?
2 - The sound jumps/skips and goes out of time with the video.
As it is now this is useless. I am trying to make a system where a user records a short video from the camera and then I upload it to YouTube from my server. If you use Youtube's webcam page the video quality is quite acceptable and the audio is obviously in sync too, so they must know something I don't. [URL]..
Same file streamed from FMS4 (same on 3.5) with rtmp protocol has very poor quality compared to real file quality. Is there some low level configuration to do on Flash Server? Is the streaming server making some kind of transcoding before sending the stream? Or it can be Flash Player? Tried unchecking "hardware acceleration" but nothing changes. I am on a local gigabit network, so no network bottlenecks. Video seems very pixelated on the edges (not soft/antialiased). These are the file details:
[CODE]....
So far , I only found tutorials on control these attributes while publishing the stream
View 15 RepliesIs there anyway to utilise the bandwidth of the flash media server from the server side in such a way so that the streaming will happen from the flash media server to the user based on the user internet connection speed. So users with low bandwidth will receive less streaming data in their buffer and users with high bandwidth will receive more streaming data into their buffer from the server.
View 1 RepliesAs stated in the title, I want to know how to determine if my server/host has native bandwidth detection. I have FMIS 3.5 installed on my Linux server. Is this a setting in FMIS or is this something I have to call my host to find out?
View 5 RepliesI'm trying to stream a webcam from 1 server to many client, what I really need to know is :1. How to adjust a bitrate video for bandwidth streaming, is it enough just using a Camera.setQuality() ?2. If u set Camera.setMode() at large resolution, for example at 1024x768 is it could make the bandwidth for client access increase too ?I mean is it affect the bandwidth for set the resolution at small (ex: 160x120) or set at large (ex: 1024x768) resolution.3. Same as number 2. just it was for video=new Video(w, h) . Is setting a video size affecting the bandwidth ?
View 1 RepliesIs it possible to limit globally the bandwidth usage of FMS 3.5 ? I don't want FMS to use all the bandwidth available via our ISP.I want my coworkers and other servers to be able to continue using Internet while sending/receiving data from/to FMS. I know it is possible to limit various bandwidths per Applications, but it seems there is no easy way - using the xml config files - to globally limit the server bandwidth.
View 2 RepliesHow to retrieve fms bandwidth into flex?
View 2 RepliesI would like to know how bandwidth detection works in FMS? Does it downloading something or what? Does FMS is using rtmp or http protocol to check it?
View 7 RepliesI am trying to get the "bwcheck" application to work on FMS 4 on Amazon EC2, in order to detect my upload speed to the server and provide the best quality stream for my upload speed.
The tutorial I follow is this:
[URL]
Both are almost identical. However when I compile the .fla to .swf (having changed the URL for my server and application), and after I load the server-side code, I get the following error in my server-side log:
Method not found (recData)
I understand that apparently it is not finding the method, but I tried getting it off the function in the global scope, tried attaching it to the client, etc. but nothing worked. The original code of the server-side script is:
for ( i = 0; i < 1000; i++ ) {
data += "S->C";
}
Client.prototype.recData = function(data)
[Code].....
Need to know how to calculate bandwidth for fms shared object used in a text chat application..
View 1 Repliesrtmfp downloaded from the node, and the upload bandwidth to another node, but the FMS bandwidth limitations Client.getBandwidthLimit () seems to only limit the bandwidth of the server to the client such as RTMP, ask how to limit the bandwidth between nodes, such as RTMFP.
View 2 RepliesI'm in the process of developing a realtime video chat application where multiple users can send video streams simultanuously. The number of users receiving the streams can be very big, e.g. 10 broadcasters and 500 receivers, each receiver should get all streams.
I use RTMFP connections to an FMS and streams are published in P2P multicast groups by passing the groupspec to the NetStream constructor. Currently I'm having problems with audio/video synchronization and video stream 'jumps' (not continuous). From what I read on other threads, this is related to the fact that there is not enough upstream bandwidth for sending the streams. So my questions are:
How to calculate the required upstream bandwidth on every peer for the given example of 10 broadcasters and 500 receivers (is it 10*bandwidth of one stream)?What settings (on NetStream, Camera, Microphone etc.) should be used for best results and how to adapt them based on the number of broadcasters?
How to retrieve fms bandwidth into flex?
View 1 RepliesI have an application that I support but did not create. I need to test it on FMSS 3.0 but the developer version has both Streaming and Interactive Server enabled. Is there any way to disable the Interactive Server in the Developer Edition so I can confirm the application works on Streaming Server without influence from Interactive Server? The application works on the development server but when I move it to the production Streaming Server, it does not respond the same.
View 10 RepliesI have confirmed this behavior in FMS 3.0.2 on Windows 2003, Vista, and Linux.
In prior versions of FMS if I had a publisher sending a live video feed to the server, then I could have subscribers connect to the server and set a bandwidth limit for them and the server would ensure that the subscribers only got as much bandwidth as I set for them. As of version 3, the server now ignores this limiting for live streams.
You can set a limit on the publisher which of course then limits the live stream that subscribers view, but that is not what I want. I want to have the publisher push a live stream at the quality I specify and then I need a way to give some subscribers a lower bandwidth version of that stream. This all worked fine in prior versions of FMS and I can't imagine this is intended behavior in version 3, but it seems like a major oversight.
The bug can be replicated by creating a simple flash app to stream live video to the server and then in a separate NetConnection, subscribe to that live stream and display it. Then on the server side, setup an application.onConnect to do a setBandwidthLimit on the subscriber and you can see that it is totally ignored. You get the full bandwidth stream even though the limit should be reduced for the subscriber.
We need to record and display daily/weekly/monthly statistics on vod application usage, we are working with multiple application and need statistics for each one of them individually parameters required are bandwidth, number of connection, view time ...
View 5 Replieswe are using RTMP with Flowplayer with dynamic bitrate switching and I'm a bit confused on the bitrate (kbps) that is called out in the code in order to configure the bandwidth check. I presume that this is the target bitrate if encoding using ABR or constant. How about for the rest of us that are using CRF? My understanding is that CRF is the way to go now for H264 (don't want to hijack the thread to a CRF vs ABR discussion). If we are using CRF, can we guess on the target bitrate that is called out in the bwcheck plugin?
View 1 Repliesi m developing live video broadcasting app in fms.. hw to calculate bandwidth usage for each and every user
View 1 Replies