On Fri, Aug 22, 2008 at 5:09 PM, blindfold <[EMAIL PROTECTED]>wrote: > > Thanks Megha. So the byte[] data provided by onPreviewFrame() is > effectively useless, because there is no efficient means of converting > into a format that the rest of Android understands. Strange API > design... > > I have now successfully used onPictureTaken() instead of > onPreviewFrame(), because that one does have proper image format > support, but this is likely going to run much less efficiently on real > phones because it is meant for (slow) megapixel snapshots, and I need > to take a (small) snapshot every second. Please reconsider the image > formats used in onPreviewFrame() in relation to the image formats that > Android supports, because it is quite weird to offer data in a format > that cannot be used, and for which the format is not even documented > (so every phone manufacturer can pick an arbitrary format that we > developers then need to reverse engineer). > > > To draw the preview frames, you can call Camera.startPreview() and the > system takes care of the drawing. > > I'm after computer vision applications, so mere drawing is not enough. > BTW, as I reported before, the camera preview is stuck at the top left > of the screen because there is no method for specifying its location. > I wished the API designers had a look at J2ME first. >
Could you please log bugs in the public issue tracker for both these issues? > > Thanks. > > On Aug 23, 12:10 am, "Megha Joshi" <[EMAIL PROTECTED]> wrote: > > There is no way to convert the preview frames that come as YUV data from > > Camera.SetPrivewCallBack() into a bitmap.To draw the preview frames, you > can > > call Camera.startPreview() and the system takes care of the drawing. > > CameraPreview sample code in ApiDemos is updated to use startPreview() > now. > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] Announcing the new Android 0.9 SDK beta! http://android-developers.blogspot.com/2008/08/announcing-beta-release-of-android-sdk.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
