Hello all,

I was trying to use some of the new camera methods included in Froyo,
i.e. setPreviewCallbackWithBuffer() & addCallbackBuffer(). In the
documentation it's said you need first to create a buffer of
appropriated size and use the addCallbackBuffer() method. The buffer
size must be width * height * bits_per_pixel or otherwise you'll never
receive a preview frame. To know the image size, you can ask to the
camera about it's configuration. When I'm trying to configurate the
camera I use Camera.getParameters().getPreviewSize() the emulator says
the size is 320*240, but with that size it didn't work on emulator. I
used the old setPreviewCallback() and, in the onPreviewFrame(), I
asked the size again. That time the size was 480*320. Then I hard-
coded that values in the first code and everything worked.
Now I'm afraid not only the emulator would have that behaviour.
Unfortunately I don't have any real device with Froyo and I can't try
it. So, anyone have tried that methods in real devices? btw, are they
really increasing the poor performance and frame rate?

Thanks

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