this is a known issue with some one. OnPreviewFrame will not start until a 
valid surface is given

On Friday, August 31, 2012 10:01:33 AM UTC+2, cpares wrote:
>
> Hello!
>
> Do you know if OnPreviewFrame (as of Android 4.0.3) is correctly 
> implemented in Samsung Galaxy Nexus? I have programmed some code that works 
> perfectly on a Galaxy S3, but in the Nexus, the byte[] buffer, which comes 
> with the call to OnPreviewFrame and should have the YUV data, has 0s in all 
> the Y channel, and -128 in U and V (that is, plain green, if I'm correct).
>
> getPreviewFormat() is returning a 17 as expected, meaning that the preview 
> mode is actually NV21 (the same as the S3 on which it works).
>
> I know there are some hardware-dependent issues with raw camera data, so 
> maybe that is the explanation? I have been searching but I have found 
> nothing related.
>
> Thank you for your time!
>

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