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Frame advance

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hooligancat
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On the Panasonic BD60 player, the right navigation doubles as a frame-by-frame advance for when the player is in pause mode (ie rate of 0.0).

It only enables this functionality until menu graphics are drawn to the screen. So there is a window of about 1second where this behaviour can be seen.

Is there anu UO to prohibit this? Alternatively can the cursor forward UO be prohibted from within the java code, and then set to be permitted again via java?

Thanks

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hooligancat
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Joined: 2009-10-20
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Thanks for the heads up. If I understand you correctly this behaviour cannot be prevented, but this behaviour has been removed from some of the latest models/firmware updates.

Correct?

bhanu_srikanth
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Hi:

See my response to Joe. There is a way to turn this behavior off in some Panasonic players - BD-35, BD-60. I did not check on BD-10.

Bhanu

hooligancat
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Thanks for looking at this.

bhanu_srikanth
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This behavior is exhibited in several stand-alone players. There is a good reason to this - when pause is enabled, player displays OSD (graphics on the screen) briefly. From player's perspective, OSD could be anything including player menus where you could selecti a subtitle or audio stream, so player handles the navigation keys itself and does not pass it onto the BD-J application. Once OSD goes away, BD-J app is in control again. Besides when you pause and press the arrow keys (with or without BD-J) player assumes you want to step through the video.

There is no UO to prohibit this and UO masks are defined in HDMV level, so you cannot turn it on and off in BD-J code. You just have to live with it. :-)

Bhanu
Jargon Technologies

Joe Rice

Hi Bhanu,

In an interactive title, could one inhibit this behavior by implementing pause and other trick play in BD-J and declaring interest in the player control keys? Or does frame advance work regardless of whether the video was paused via UO or BD-J, with no corresponding VK for the frame advance button?

Cheers,
Joe

On Feb 5, 2010, at 2:22 PM, bd-j-dev@mobileandembedded.org wrote:

> This behavior is exhibited in several stand-alone players. There is a good reason to this - when pause is enabled, player displays OSD (graphics on the screen) briefly. From player's perspective, OSD could be anything including player menus where you could selecti a subtitle or audio stream, so player handles the navigation keys itself and does not pass it onto the BD-J application. Once OSD goes away, BD-J app is in control again. Besides when you pause and press the arrow keys (with or without BD-J) player assumes you want to step through the video.
>
> There is no UO to prohibit this and UO masks are defined in HDMV level, so you cannot turn it on and off in BD-J code. You just have to live with it. :-)
>
> Bhanu
> Jargon Technologies
> [Message sent by forum member 'bhanu_srikanth' (bhanu_srikanth@hotmail.com)]
>
> http://forums.java.net/jive/thread.jspa?messageID=385097
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bhanu_srikanth
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Joe:

In my experience, once you do setRate(0) some players throw up a OSD saying "Pause" for a second whether movie title or interactive title. I will check once again on an interactive title and confirm.

However recently I have seen some very recent models from manufacturers the used to exhibit this behavior does not do so anymore.

This has come up counless times in QC that I just could not resist responding when I saw this question.

Bhanu

Joe Rice

Bhanu,

Agreed - we've seen (and been frustrated by) that forced OSD on several players. The PS3 even shows it briefly when a PlayItem ends on a still!

I suppose I'm wondering if declaring interest in the player control VKs would at least allow one to inhibit the frame advance function after a pause, potentially implementing frame advance in BD-J by setting new media time, thereby having the flexibility to only allow it when desired.

Cheers,
Joe

On Feb 6, 2010, at 7:21 PM, bd-j-dev@mobileandembedded.org wrote:

> Joe:
>
> In my experience, once you do setRate(0) some players throw up a OSD saying "Pause" for a second whether movie title or interactive title. I will check once again on an interactive title and confirm.
>
> However recently I have seen some very recent models from manufacturers the used to exhibit this behavior does not do so anymore.
>
> This has come up counless times in QC that I just could not resist responding when I saw this question.
>
> Bhanu
> [Message sent by forum member 'bhanu_srikanth' (bhanu_srikanth@hotmail.com)]
>
> http://forums.java.net/jive/thread.jspa?messageID=385229
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: bd-j-dev-unsubscribe@hdcookbook.dev.java.net
> For additional commands, e-mail: bd-j-dev-help@hdcookbook.dev.java.net
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bhanu_srikanth
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Hi Joe:

Sorry for the delayed response -- I just got a chance to try out some scenarios.

Delcaring interest in player control VKs does not inhibit frame advance after a pause. I can confirm that the player exhibits this behavior regardless of movie or interactive title.

BUT.. I found out that there is a way on Panasonic players to turn this behavior off - Press setup->Display. In this by default status messages are automatic. Change this to OFF and the players messages are gone. This will also turn off status messages which you may want.

Regards
Bhanu