I'm a newbie to Android and want to explore the video display flow
under Android.
I browsed the video surface output in opencore, and found that it can
not get the full video display info such as coordinate and
orientation. So it just allocate buffers from pmem heap according to
the original video size and post the buffer out of opencore ( to a
layer buffer module).
So my question is:
(1) Where the video display size and orientation?
(2) which module does the scaling and rotation? by hardware or
software?
(3) Can anybody give a further explanation how the surface flinger and
layer buffer work?
(4) is there any way to let famework base libs (surface flinger and
layer buffer) output some log info like opencore?
It's will be very helpful for me to trace the code.
Many thanks
Jasperr
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