AVFoundation – captureOutput:didOutputSampleBuffer:fromConnection:

iOS 4.3 Beta 1

I dunno what's going on, but somehow the MetaDictionary of the sampleBuffer is missing in the new Beta. Can anyone approve this?

I always got the MetaDictionaty like this

CFDictionaryRef metadataDictionary = CMGetAttachment(sampleBuffer, CFSTR("MetadataDictionary"), NULL);

this is now null, and I cannot figure out why? Somehow I am even not able to figure out all the available keys of the sampleBuffer. So therefore I would need some help or a fix that I still get the metadataDictionary.

update: for additional information i create the sampleBufferDelegate like this

dispatch_queue_t my_queue = dispatch_queue_create("cameraQueue", NULL);
[videoOut setSampleBufferDelegate:delega开发者_开发百科te queue:my_queue];

You might try the constant kCGImagePropertyExifDictionary in place of your string there in the second parameter. They may have changed its value.