You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@flex.apache.org by "Erik Thomas (JIRA)" <ji...@apache.org> on 2013/02/01 16:04:13 UTC
[jira] [Issue Comment Deleted] (FLEX-33374) spark VideoDisplay and
VideoPlayer fails to stream video on mobile devices
[ https://issues.apache.org/jira/browse/FLEX-33374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Erik Thomas updated FLEX-33374:
-------------------------------
Comment: was deleted
(was: And yes, I understand the spark VideoDisplay leverages OSMF, including MediaPlayer and MediaElement and the defect may belong to OSMF. I will download and debug their sources and see if I can find something. )
> spark VideoDisplay and VideoPlayer fails to stream video on mobile devices
> --------------------------------------------------------------------------
>
> Key: FLEX-33374
> URL: https://issues.apache.org/jira/browse/FLEX-33374
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: VideoPlayer
> Affects Versions: Adobe Flex SDK 4.6 (Release)
> Environment: FlashBuilder 4.7 on Windows 7, iPad 3, iPhone 4, remote FMS 4.5 server, FLV Video source in 112K bitrate.
> Reporter: Erik Thomas
> Priority: Minor
> Attachments: VideoDisplay.jpg, VideoPlayback.zip
>
>
> The spark VideoDisplay will not stream video from FMS 4.5, instead it appears to do progressive download instead, and it buffers the file for about one minute before it begins to play.
> However, the same code running in FlashPlayer on web, or in an AIR mobile simulator, the video properly streams and displays within seconds of playing.
> I understand VideoDisplay is not "optimized" for mobile, but that should not cause this behavior. I am in the process of debugging the spark codebase to find the root cause, but so far have been unsuccessful.
> So I attached a project that displays this behavior. Just unzip the file to a directory, start FB and point the workspace to the directory, open the project, build and run it first in an AIR simulator for an iOS mobile device, you'll see video instantly. Then deploy it in debug or release to an actual device. When you launch the project, you have to wait approximately a minute before the video will start playing.
> I'm assuming it's failing over to progressive download from streaming in some way, but I really have no idea what is causing the issue.
> UPDATE 2/1/2013 - I've downgraded the priority on this since I wrote my own video controller and display classes that just use NetConnection, NetStream, and Video classes. I guess for mobile that's the more optimized solution anyway, as VideoDisplay and VideoPlayer seem pretty heavyweight in comparison. So I'm not waiting on this fix and suggest anyone building a mobile video player should do what I did anyway. Of course we have to do our own bandwidth testing which requires a server-side asc on FMS, but that's actually working better than VideoDisplay's adaptive bitrates anyway that resize the video way too often, so it's really a win not to depend on OSMF.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira