Occasional Buffering on HTTP LivePackager Streams

Hi -
I'm encountering a sporadic buffering event when playing LivePackager-based streams. The buffering is very short (<1 sec), and seems to happen at random points during the view. From the player's perspective this manifests as a slight stutter, but it is noticable.
There's hardly a pattern to it, sometimes it will occur several times in a minute, and other times I will get several minutes of uninterupted playback before it happens.
I do not see the problem when playing pre-packaged, On-Demand files. Only Live content. I see this issue in both our custom video player (which we've set up to give a trace when the buffering occurs), and the "vanilla" OSMF player, so I suspect it is some sort of setup problem.
I have seen the problem on both multibitrate and single bitrate streams, and with a variety of encoders (FMLE, digital rapids, inlet). I don't think it's an encoder issue (for example, FMLE shows no drops of any kind)
Looking at disk/memory/network usage on the server shows nothing utilized above 30%, so I don't think it is a hardware issue.
1. Are there any settings (or lack of settings) that are known to cause this behaviour?
2. Are there any "known, good" Livepackager HTTP streams that I can test against to isolate if this is an issue with our setup or a broader Livepackager bug?
Thanks,
-bryan

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Can someone help me with HTTP Dynamic Streaming?

I have been googling the crap out of this. I am a video producer for a Non-Profit and in the next couple of weeks we are launching an online training, half of which requires watching multiple different video clips – for this particular training around 50 deferent online videos. I’m a bit experienced with encoding video for the web (FLV, H.264) but would love to know more about HTTP Dynamic Streaming. As of now we just use a progressive download type of playing. We recently hired a web dev and knows servers a bit but didn’t seem like he knew anything about HTTP Dynamic Streaming – said maybe we should search the internet for an auto detecting flash player? Anyways, is this something that I should be looking into for our organization if we do a lot of online video? If we purchased Flash Media Server would this be all we need? Is there like a Dummies book on this subject? Thanks for any help
-Pat

Thanks Saeroner for showing interest in HDS. This is definetely a new era technology.
As I said in my earlier post, I would like you to encourage to download the developer version of the FMS. In case of HDS, this version restricts you to 30 minutes of viewing time.
So for example, once you have installed the FMS, go to <installation-dir>/samples/videoPlayer/videoplayer.html. Open the player and yourself evaluate the HDS vs progressive HTTP
For progressive HTTP, you may play http://localhost/vod/sample1_150kbps.f4v
For HDS, you may play http://localhost/hds-vod/sample1_150kbps.f4v
Though, video quality may not be different, but you may find buffering happening in case of progressive, while HDS will be instant delivery.
Other than this, the main point that I feel you might be really interested as online training company is that you may not like to freely distribute the content to the subscribers.. In case you can win the trust of training content creater that his/her content will be completely protected and can be viewed only to those having rights to view it, it will encourage content creater to host their content on your solutions. Today when premium content creation is so expensive, one would not like it to be get pirated by progressive downloads..
FMS within HDS provides you facility to completely protect your content. Though that's a bigger step..
Other than this, in today's world.. Desktops are not the only medium to watch the content.. Tablets, mobiles are replacing the desktops for day to day purposes like video watching, social site browsing etc... Though tablets and devices may not be attached to high bandwidth network all the time, but HDS provides you flexibility to host streams with different bit-rates and do an adaptive bit rate switching... In such case, progressive download may not at all give you that seamless experience and would require hell lot of time for video to first completely download and start..
You only need client side management in flash for the HDS. HDS requires OSMF player that you either download or build yourself as per your customisation.

How does HTTP live streaming support subtitles?

Our app currently is on HTTP Live Streaming and everytime we scrub (fast forward or rewind) or if with low connection (buffering), the subtitle gets off-sync. Videos are segmented into 10 seconds so when you scrub, it jumps back to the nearest start of segment and when it does, it does not provide the exact and correct current playback time so we can't accurately compute for the offset, thus subtitle gets off synch.
Our one solution is to use ID3 tagging when we encode our videos so we know exactly the time when segments starts. Unfortunately, there are not much encoding system that uses this yet.
Any ideas on this?
Thanks!

Unfortunately, QTSS doesn't support HTTP Live Streaming. I wonder why Apple did not implement QTSS in Snow Leopard Server.
However, Helix Universal Server from Real can do the trick.
http://www.realnetworks.com/products-services/helix-server-proxy.aspx

HTTP Live streaming test in Flash Player, HTML5 player, iphone, android and other smart phones.

Hi,
Can anyone please tell me how can I play http live streaming from FMLE 3.2 to Flash player, iphone, ipdad, HTML5 player, Android and other devices?
I have tried my best to play live streaming usine FMLE 3.2 with help of "http://help.adobe.com/en_US/flashmediaserver/devguide/WSd391de4d9c7bd609-52e437a812a3725df a0-8000.html" but not able to play video using HTTP.
When I tried to play url- "http://localhost/hds-live/livepkgr/_definst_/liveevent/livestream.f4m" even in in Strobe Media Player it was showing "Buffering" that's it. But I can play same RTMP URL in Flash AS3 using the netstream very fine.
Now I want to test the livepkgr content via HTTP to Flash Player, HTML5 Player (on Web browser and smartphones), iphone and other devices.
Thanks
Best regards,
Sunil Kumar

Hi Sunil,
It's difficult to debug an issue when you don't have access to the machine and you can't see what's happening, so I request you to please have a little patience.
For playback just check the following steps and make sure if you have followed them :
1) Delete the streams folder and any .stream file in the livepkgr
2) Restart FMS
3) Make sure you have a crossdomain.xml under root_install/webroot
4) Publish a stream from FMLE as 'livestream?adbe-live-event=liveevent'
5) Use this player to playback the stream : http://osmf.org/dev/2.0gm/StrobeMediaPlayback.html?src=http://<your-ip>/hds-live/livepkgr/_definst_/liveevent/livestream.f4m
If there is no playback, here are some checks you can do :
1) Request for the http://<your-ip>/hds-live/livepkgr/_definst_/liveevent/livestream.f4m in your browser. You should receive an xml that looks something like this :
<?xml version="1.0" encoding="UTF-8" ?>
     <manifest xmlns="http://ns.adobe.com/f4m/1.0">
          <id>livepkgr/events/_definst_/liveevent</id>
                  <mimeType />
          <streamType>live</streamType>
          <duration>0</duration>
          <bootstrapInfo profile="named" url="../../../streams/livepkgr/events/_definst_/liveevent/livestream.bootstrap" id="bootstrap7158" />
          <media streamId="livestream" url="../../../streams/livepkgr/events/_definst_/liveevent/livestream" bootstrapInfoId="bootstrap7158">
                      <metadata>AgAKb25NZXRhRGF0YQgAAAAAAAhkdXJhdGlvbgBAJUUeuFHrhQAFd2lkdGgAQHQAAAAAAA=</m etadata>
            </media>
</manifest>
2) Check the access log under Apache to see if the .f4m, .bootstrap and Frag files have been requested and delivered. If a particular entry has a status code of 200 then the file has been served by FMS. You can confirm the same on the client side using a software like fiddler.
Coming to the player issue, a playback of *f4v via the vod directive is a progressive download, whereas playback of an *f4m file via hds-vod is HTTP streaming.
I have personally used Spark VideoPlayer and hence suggested the same.
You need to add a component like :
<s:VideoPlayer width="100%" height="30%" chromeColor="#CCCCCC" color="#000000"
                 fontSize="12"
                 source="http://<your-ip>/hds-live/livepkgr/_definst_/liveevent/livestream.f4m"
                    symbolColor="#000000"/>
Let me know if any of these suggestions help.
Thanks,
Apurva

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JavaFX 2.2 includes support for http live streaming: http://en.wikipedia.org/wiki/HTTP_Live_Streaming
How could one create a http live stream from a Webcam and thereby enable a JavaFX application to view and hear the Webcam video in realtime?

Bom Dia Saille,
Eu acredito que o que você tenha hoje seja isso aqui (Desenho bem simplificado):
Hoje o que você tem é o Aplicativo do Medidor + USB Driver controlando o seu medidor. Basicamente, sua aplciação está dividida em três camadas:
Aplicação - Onde estão as funcionalidades principais do programa (interface com o usuário, apresentação de dados, geração de arquivos, etc.)
VISA - Uma arquitetura de Software para controle de instrumentos. Basicamente, ele se comunica com o Driver USB para poder enviar e receber pacotes de dados através do barramento USB.
Device Driver - Intruções de SW de baixo nível para controlar um periférico através de um barramento.
No desenho, eu aponto duas camadas onde você pode tentar atuar para automatizar suas medições:
Aplicação - Você pode usar o VI Server para controlar o Aplicativo do Medidor (Se este aplicativo tiver sido desenvolvido em LabVIEW, o que eu suponho ser verdade). No entanto é necessário saber se o desenvolvedor do produto permitiu isso (Veja Using VI Server to Pass Data Between a VI and a LabVIEW Executable). Outra alternativa é conversar com o fabricante para ver se ele desenvolveu alguma API (Application Programming Interface) para que você consiga controlar o instrumento diretamente.
VISA - O LabVIEW Fornece uma API chamada NI-VISA para poder enviar e receber informações através de diversos barramentos (Veja Serial Instrument Control Tutorial)
É possível acessar o Driver diretamente também, mas eu não recomendo. O resultado não compensa o esfroço!
Espero ter esclarecido suas dúvidas e espero que você tenha sucesso na sua aplicação!!
Atenciosamente.
Felipe Flores
Engenharia de Aplicações
National Instruments Brasil

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Hi folks,
Here is a requirement
I need to read a file sent as an http object stream through XI and then updated the same in a database table in R/3?
<b>How can i configure the http adapter so that it reads the file stream</b>
regards
krishna
Message was edited by:
Krishnamoorthy Ramakrishnan

Thanks bhavesh
Though your reply and reference did not directly answer my question, which i will explain below concisely, it did help me to get an idea about how to handle my requirement.
Please read and give me your valuable advise.
The sender is a distributor that wants to send some text file to a file server in XI.The sender will have to send the file as a http stream link. XI has to read the file from the http stream and push it to a file server in XI. for this, i have identified that
1. At outbound/sender side, there is an HTTP adapter in XI.
2.The request to XI should be of the some think like
<b>http://<host>:<port>/file stream.....</b>
3. At inbound side , I have a java server proxy as suggested in the blog.
4. The server proxy will use a http client connection to read the file stream and another ftp client to push it to the file server
Do you think this would realize the requirement?
I have also got a question here
With the above mentioned URL, will the sender be able to communicate with XI, since the client is outside the network and has access to internet only. How can it communicate with XI?
Also, Is there an better alternative to this approach?
Thanks for your help
Kind Regards
krishna

RTMP + HTTP Dynamic Streaming

Dear,
We are about to build a flash based online application. We need the best video support, therefore we would like to have a video player that has all the advantages like adaptive bitrate, caching, dynamic seek.
We just got to know the new HTTP Dynamic Streaming solution that gives us the caching if we use a streaming solution in order to provide the adaptive bitrate functionality and the dynamic seeking.
Adobe has two products for streaming: Flash Media Interactive Server, Flash Media Streaming Server . There is a huge difference in terms of price between those two. Which one should we choose? We won't need to record any videos.
The other big question is the file encoding. As we saw we need h264 videos saved on the server. Which server side software/framework/library do you recommend to use? ffmpeg? We have a Linux server.
Thanks!
By the way, HTTP Dynamic Streaming seems to be a very good solution!

Hi,
Thank you for your interest in the Adobe streaming products ! We look forward to support you.
Regarding the difference between Flash Media Interactive Server and Flash Media Streaming Server, the latter is specifically mentioned for only streaming use cases and no interactivity can be added to your applications. This will be perfectly suiting live scenario and video-on-demand cases. As you mentioned, this cannot/do not record any streams on the server. The former is a fully expandable interactive server where one can develop rich interactive applications including video recording (and hence DVR functionalities) and much more.
Adobe's OSMF (Open Source Media Framework) flash based players are the best fit for all the reqiurements mentioned. You might want to give it a try @ www.osmf.org
For File encoding and transcoding, we have a slew of Adobe Products that you might want to take a look at, like Adobe Media Encoder, CS5 suite, etc.
For live video Encoding , please take a look at the Flash Media Live Encoder.
Thank you !

RMTP + HTTP Dynamic Streaming

Dear,
We are about to build a flash based online application. We need the best video support, therefore we would like to have a video player that has all the advantages like adaptive bitrate, caching, dynamic seek.
We just got to know the new HTTP Dynamic Streaming solution that gives us the caching if we use a streaming solution (rmtp) in order to provide the adaptive bitrate functionality and the dynamic seeking.
Adobe has two products for streaming: Flash Media Interactive Server, Flash Media Streaming Server . There is a huge difference in terms of price between those two. Which one should we choose? We won't need to record any videos.
The other big question is the file encoding. As we saw we need h264 videos saved on the server. Which server side software/framework/library do you recommend to use? ffmpeg? We have a Linux server.
Thanks!
By the way, HTTP Streaming seems to be a perfect solution!

Thanks, Adrian. That's great to hear.
My company has been using RTMP and RTMPT for years and years now. Most of our clients are users within large corporations. Because of their firewall restrictons, our video player has logic built in to cycle through a series of ports for RTMP, then fallback on RTMPT. If RTMPT fails, it then falls back on an HTTP psudo-streaming method using PHP. The psudo-streaming method works great, but it is essentially a tricked out progressive download. If HDS can remedy the need for all those fallback catches and mimic the bandwidth usage of true streaming, then I am very excited to put it in use.
But I am curious. From the sound of it, HDS is very accommodating for video delivery. If that is the case, why would anyone continue to use RTMP for video playback?

Server error 503 when running On-demand HTTP Dynamic Streaming tutorial

Hi,
I'm trying to set up an HTTP Dynamic Streaming environment for VoD (not live streaming). I'm following the instructions in the HTTP Dynamic Streaming Quick Start guide (http://help.adobe.com/en_US/HTTPStreaming/1.0/Using/WS8d6ed60bd880807c48597a9e1265edd6cc0- 8000.html#WS8af793f9af34bea0def106e12873ad717a-8000)
I'm running everything on Windows 7. I installed Apache 2.2, as well as the HTTP Origin module and the f4fpackager. I also installed the Microsoft 2005 and 2008 Visual C++ redustibutable packages (I actually have 3 different versions of the 2008 redistributable package installed on my system).
I ran f4fpackager using the default settings (I only configured the input file and output path). The input file is an H.264 video several minutes long. The result is a single video file (CascadaSeg1.f4f), a single index file (CascadaSeg1.f4x) and the manifest (Cascada.f4m).
I am using the sample OSMF player linked to by the quick start guide. The player plays the sample links correctly.
When I try accessing the .f4m file I generated the video starts playing and then stops with a player message that the segment is unavailable. The network trace shows that the player asks for CascadaSeg1-Frag1, receives it, then asks for CascadaSeg1-Frag3 to which the server returns a "503 Service Temporarily Unavailable" error.
I raised Apache logging level to debug but didn't find anything useful (at least not to me :-) )
Reinstalling all components did not resolve the problem (as was suggested in a different similar discussion).
I can't even distinguish whether the problem is a packager problem or a server problem. I am trying to obtain Flash Media Server 3.8 but that will take a while, if at all.
Any ideas? Does anyone have a correctly packaged video file that I could put on my server to see if that plays correctly? Other suggestions?
All help is much appreciated.
Regards,
- Naomi

Thanks for the pointer. See below the output from the parser (I formatted the first rows for easier reading). I'm not sure exactly how to read it, but it seems the parser found no errors and indeed there is a Fragment 3 but no Fragment 2.
I see that between fragment 1 and 3 there is a large increase in time (twice the increase between other segments).
I don't know how to interpret afra_offset. The f4f file size is 59.1 MB - if afra_offset is a byte offset than the file is definitely large enough.
Any ideas?
Thanks!
- Naomi
f4x file parser utility
Ver 0.1
the length of the file is 1817
afra length 1817
Box name afra
version 0 flags 204
longIDs 1 longOffsets 1, globalEntries 1
timescale 1000
entry_count 0
Count time offset offset-hex
global_entry_count 56
Count      time          segment      fragment      afra_offset      offset_from_afra
0                0            1                1                    12486            0
1                9560       1                3                      348a0b          0
2                14360      1                4                      4514c9       0
3                19160      1                5                      564b63       0
4 23960 1 6 6bd55b 0
5 24000 1 7 ffffffff 0
6 28760 1 8 812320 0
7 33560 1 9 960f5f 0
8 38360 1 10 a84984 0
9 43160 1 11 be4bf7 0
10 47960 1 12 d42bf7 0
11 48000 1 13 ffffffff 0
12 52760 1 14 e7dd5b 0
13 57560 1 15 fd0f2f 0
14 62360 1 16 1117b57 0
15 67160 1 17 12476be 0
16 71960 1 18 136c36b 0
17 72000 1 19 ffffffff 0
18 76760 1 20 149a611 0
19 81560 1 21 15da701 0
20 86360 1 22 16fcc72 0
21 91160 1 23 1817c72 0
22 95960 1 24 192a704 0
23 96000 1 25 ffffffff 0
24 100760 1 26 1a5e901 0
25 105560 1 27 1bb3c74 0
26 110360 1 28 1ccffb6 0
27 115160 1 29 1df7b15 0
28 119960 1 30 1f2251d 0
29 120000 1 31 ffffffff 0
30 124760 1 32 208f76a 0
31 129560 1 33 21e2bdd 0
32 134360 1 34 23665a1 0
33 139160 1 35 24c19a0 0
34 143960 1 36 25e95cc 0
35 144000 1 37 ffffffff 0
36 148760 1 38 270706b 0
37 153560 1 39 27fd359 0
38 158360 1 40 297aa79 0
39 163160 1 41 2ac43c5 0
40 167960 1 42 2be412e 0
41 168000 1 43 ffffffff 0
42 172760 1 44 2d376fd 0
43 177560 1 45 2e632c6 0
44 182360 1 46 2f9e374 0
45 187160 1 47 30e25df 0
46 191960 1 48 325d15c 0
47 192000 1 49 ffffffff 0
48 196760 1 50 33f5173 0
49 201560 1 51 3557336 0
50 206360 1 52 3699a34 0
51 211160 1 53 37df5d3 0
52 215960 1 54 38bba3f 0
53 216000 1 55 ffffffff 0
54 220760 1 56 39e62c8 0
55 225560 1 57 3ae942d 0

How to stream with the player strobe media playback videos using http dynamic streaming?

Hi..
please could i have some help about the player strobe media playback?
i would like to know how to stream with the player strobe media playback videos using http dynamic streaming.
I have already installed the server,i put my own video in the video on demand folder.i downloaded the player but i don't know how to stream that video with the adobe protocol dynamic streaming.

http://osmf.org/configurator/fmp/
Use this configurator, and use the same code it generates with your strobemediaplayback.swf
Also make sure the domain where strobemediaplayback.swf is being called from and resides, is in your /webroot/crossdomain.xml file, or it will not work.

Can FFmpeg produce f4f, f4x and f4m files instead of Adobe's File Packager for HTTP Dynamic Streaming?

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Isn't the packager part of Flash Media Server?
http://help.adobe.com/en_US/HTTPStreaming/1.0/Using/WS9463dbe8dbe45c4c-c126f3b1260533756d- 7ffc.html#WSaeac10ab694095a12a9a3a7d12823cda643-7fff
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We recently purchased FMS4 and I'm in the midst of setting it up. However, not that it's a HUGE deal, but....
I see conflicting answers in the forums about whether or not it is possible to stream media in the HTML5 <video> tag (going back to early 2010).
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Thank you kindly, in advance.

To the best of my knowlege, no.
The browser would need to support the flash media manifest file format to be able to play and HTTP stream from FMS, and I don't think any of the browser vendors have implemented it. It would be more likely that Apple's spec is adopted (HLS uses a similar structure using mpeg-ts), but that's not implemented in anything other than safari at this point.
you -could- use the bundled apache http server to serve progressive downloads to the <video> object in the browser, but it wouldn't be a stream coming from FMS.
More info on flash media manifest file format here:
http://opensource.adobe.com/wiki/pages/viewpage.action?pageId=43581634

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I didn't get your query. Are you looking for the restrictions/time limits on different versions ?
http://www.adobe.com/products/flashmediaserver/compare/

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Hi , how i can read MP3 tags from HTTP mp3 streaming (streaming url : http://94.25.53.133:80/nashe-9)
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