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Video Issue #82

LeenaTekani opened this Issue · 6 comments

2 participants


Hi all,

I have try to apply filter on existing vide. I have also check your sample code of "SimpleVideoFileFilter", But still in this sample also when The video is exported it is just showing black screen.

Can you tell me if I am making any mistake or missing any setting.
Can you please check this problem and update the version.

here is the link of my update video which can help you.

Waiting for reply.



Which device and iOS version is the SimpleVideoFilter failing on? I know it currently has issues with iOS versions older than 4.3, due to some audio recording problems with the older OSs.


I had tested the app on IOS 5.0 .


What device was this on? I just tested the stock SimpleVideoFilter application on an iPhone 4, iPhone 4S, iPad 2, and iPad 3, all running iOS 5.0 or 5.1, and all of these devices filtered and encoded the movie properly.

Are you running this on an iPhone 3G S? Have you altered this sample in any way? When you run it, what gets logged to the console when the video recording fails?


First i tried on simulator but didn't worked i got a blank video then i tried on iPhone 3GS with IOS 4.3.3 it created a video of only 0.03 seconds then i tested on iPad2 with IOS 5.0 it worked.

Thanks for the clarification and reply.


The Simulator won't work, because it lacks a camera and lacks support for the fast texture cache reads I use on iOS 5.0. It's almost useless to test an application using this framework on the Simulator, so I'd recommend only testing on iOS devices.

I'll look into the iPhone 3G S recording issues, but it sounds like it's now working for you on iOS 5.0.


Hello BradLarson,

I checked again your code on iPhone 4 with iOS 4.3.3 it did not worked it created only 3 seconds of video and i want to implement video editing in IOS 4.x and IOS 5.x so can you tell me the reason why its not working on IOS 4.x or how i can implement on IOS 4.x.


@BradLarson BradLarson closed this
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