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https://issues.apache.org/jira/browse/FLEX-33374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erik Thomas updated FLEX-33374:
-------------------------------
Description:
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.
was:
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 VideDisplay 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.
> 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.
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