You can enable alpha blending in your display driver, so both graphics
and video overlay blend..
my call sequence for this are like (get fb handle, toggle alpha
blending, set the fb options)
v4l2_ioctl(fd, VIDIOC_G_FBUF, &fbuf);
fbuf.flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA;
v4l2_ioctl(fd, VIDIOC_S_FBUF, &fbuf);
more info:
http://v4l2spec.bytesex.org/spec/r10595.htm -> framebuffer flags ->
V4L2_FBUF_FLAG_GLOBAL_ALPHA
On Thu, May 6, 2010 at 7:20 PM, Svetozar Miuchin
<svetozar.miuc...@gmail.com> wrote:
> Hi,
> I'm porting Android to a board with hardware video decoding support.
> The board hardware draws the video into a video layer beneath the
> graphic layer. I've implemented a custom media player that passes the
> calls to the hardware decoders, but I need to make Android's surfaces
> transparent. Is there any way this is possible with the current
> Android architecture? I'm using the Eclair version for MIPS
> architectures.
> Thanks in advance,
> Svetozar
>
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