The dreaded black flash between movies
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Every time when I see PAL mentioned I feel that there is something not quit right with the movie codec. I would try ProRes422. I do not see any problems with the same old MBP even pulling movies from SSD connected to internal PATA bus.
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Have a read through this:
http://troikatronix.com/support/kb/optimizing-for-speed/ -
@vanakaru, by PAL I mean 25 fps. The codec is ProRes Proxy. 422 is slower on my machine.
@Skulpture, thanks but I have read those guidelines many times. I think I'm doing everything I can to optimize.
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Ok - I thought you would have, I just always ask the obvious first, because; well you never know!
Even us mods/beta testers have to check the knowledge base now and again. -
@Skulpture. Sorry, I didn't mean to be short. This is a great resource! BTW. the optimize for speed post is out of date (it does not recommend H264 for encoding, but Isadora 2.0.5 seems to like H264 if one is using AV foundation for playback; I am not as I am still using OS 10.6.8).
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Hey @ursullivision no, no it didn't read as being short. It's all cool.
The only thing I can suggest is opening an ticket and getting the super clever dudes (DusX and Jamie) to check it out for you - maybe you can send them the movie and have a look into it for you. -
I see you only have 2GB of RAM from your computer description in your Sig line.
After the OS loads and Izzy that doesn't leave much left so I wonder if these flashes are to do with memory starvation? Does the MacBook Pro have a discreet GPU if not it's using system memory and the cliches causes by a clash on the bus.I'm just guessing as I haven't come across these flashes with Izzy. AV Foundation does give me juddery playback on my Mac Pro test machine so I tend to use QT playback. On my MBP that I use for development it doesn't matter what I use. -
@Unfenswinger Hmmm, My machine does have a discreet GPU. it could be RAM. But that wouldn't explain why it had the same problem on the MacMini (4 gigs ram). Also, this short "activation" of stage 1 is weird.
@Skulpture. I guess I'll try that. Thanks.
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From personal experience one izzy project would regularly crash my Mac Pro but is stable as anything on my new MBP. The crashes seemed to be due to the timing of scene changes so there may be some timing issue within the project causing the flash frames. Since I moved my license over to my MBP there were no crashes running the project at all so I never followed things up. -
Your observation about the stage settings changing momentarily in the actor, makes me think it might be due to a recently identified and fixed bug.Unfortunately, we are still testing.. and its not ready for release. Of course I can't say for sure, so I can only suggest using a work around for now (use 2 players maybe?.. different layers? .... preload?)I will say that the next release is worth the wait! Awesome new features! -
@DusX, OK. I guess this show will just have a few black flashes. It's too close the performance date to fiddle too much.
Thanks for the info.
ur, ummmmm..........................eric
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Sorry, I could be of more help.
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Could you maybe post one of the videos here for us to try? Even just a 10second loop?
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@Skulpture, Sorry it took me so long to get back to you. Lotsa work. The show went well despite the "dropouts". How (where) can I upload the file for you?
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Do you have a dropbox or similar?
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Yes, I can upload to Dropbox. I'll email you a link if that is ok.
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Sure. Let me know when its up.
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DB link sent to your email address at gmail.
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Got it. Will look into this today for you.
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Skulpture checked my patch and saw the same intermittent black flashes.
Have you sorted out the bug, and could I test a prerelease to see if that solves my problem.Thanks,
Ur,ummmmm.............................................eric
