Can't change speed when playing in thread about ofxhapplayer HOT 9 CLOSED

OF version and platform?

from ofxhapplayer.

0.9.2 in OSX

from ofxhapplayer.

and works otherwise? ie you are on a 32-bit build?

from ofxhapplayer.

I'd try constructing the player on the thread - but ofxHapPlayer isn't thread-safe, you would have to lock around calls to it if you want to use it from both threads.

from ofxhapplayer.

Yes it works fine without the thread. 32 bit build.

I tried constructing the player in the thread and just omitting it entirely
from ofApp class, it gave me the same result, black screen.

I also tried running ofVideoPlayer in the thread instead of ofxHapPlayer.
That works fine. Perhaps it's something to do with the way video is drawn?
On Feb 13, 2016 18:35, "Tom Butterworth" [email protected] wrote:

I'd try constructing the player on the thread - but ofxHapPlayer isn't
thread-safe, you would have to lock around calls to it if you want to use
it from both threads.

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#16 (comment)
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from ofxhapplayer.

In the interest of getting something workin for you - are you sure the threaded player is necessary? The point of Hap is that it's light on CPU usage.

from ofxhapplayer.

Thanks. The reason I'm using threads is because I want to delay playback for a precise number of milliseconds. The larger goal is to have several machines on a network play back sound and video clips in sync with each other. So I'm mixing ofxHapPlayer with ofxNetworkSync.

from ofxhapplayer.

I don't have time to look into this soon. QuickTime does not like any work happening across threads, so you will have to create the ofxHapPlayer (using new ofxHapPlayer()) and call all its methods on the thread. That will be complicated because getTexture() will do work in OpenGL which you will have to coordinate with the main thread - and then use that texture on the main thread.

I'm still not convinced this isn't overkill. On a reliable network I've had success using OSC to push frame numbers - see https://github.com/joanielemercier/MediaPlayer_server and https://github.com/joanielemercier/MediaPlayer_client - largely undocumented and for OF 0.8, but worked well.

from ofxhapplayer.

OK - I will see if ofVideoPlayer can't meet my needs, then branch out from there if needs be.

Thanks for taking the time, much appreciated!

from ofxhapplayer.