So that means I cannot decode continuous frames of data to bitmap in PreviewCallback because data is encoded in raw YCbCr which cannot be decoded.The only way I can do this is using onPictureTaken method of PictureCallback where data is encoded in jpeg format which can be easily decoded.
This is however a slow process and I really wish that preview frames could be decoded. Below link demonstrates how a user decodes the YUV byte[] buffer from the preview callback and converts it into an ARGB_8888 int[] buffer http://groups.google.com/group/android-developers/msg/d3b29d3ddc8abf9b There is also an issue that discusses about applying setPreviewFormat() to set PixelFormat.JPEG at http://code.google.com/p/android/issues/detail?id=823 I would really appreciate if anyone could decode the YUV byte[] buffer from the preview callback and converts it into bitmaps. On Wed, May 27, 2009 at 12:19 PM, Jason Proctor <[email protected]>wrote: > > sorry man, the data from the camera preview is encoded in raw YCbCr > from the camera hardware, it's not readable in any sensible time > frame by anything available in the Android SDK. > > Sujay has the wrong end of the stick again, he's talking about the > image that's captured when the camera actually takes a picture. > > the preview data is in a completely different format and is not > directly usable. ask me, i tried it :-) > > hth > j > > > > > >Does anyone know how to decode the camera data from the > >PreviewCallback? I need to capture camera preview frames and process > >the bitmap obtained by decoding the frames before displaying. > > > > > > > > > > -- > jason.software.particle > > > > --~--~---------~--~----~------------~-------~--~----~ 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] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
