GPUImageMovieWriter - crashing with “Cannot call method when status is 2”

Trying to get started with the really great GPUImage framework so graciously shared by Brad Larson, but having an issue.

When running the SimpleVideoFileFilter sample it always crashes at completion with the following error:

[AVAssetWriterInput markAsFinished] Cannot call method when status is 2

Anyone know how to correct this?

Also do not see the video when run in simulator, does it not work for simulator?

Running iOS 6.1 and Xcode 4.6

Thanks!

I am noticing that finishRecordingWithCompletionHandler is being called twice, it crashes on second call

来源：https://stackoverflow.com/questions/15075172/gpuimagemoviewriter-crashing-with-cannot-call-method-when-status-is-2

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