I have been trying to use an usb video capturer on my overo board, and id
idn't work, all that I got was a blank (actually green on SDL) picture.
After some digging I found that there was a problem in the initialization
of the device, wich was solved applying the foolowing patch to
em28xx-core.c
diff em28xx-core_old.c em28xx-core.c
778c778
< height >>= norm_maxh(dev);
---
> height >>= 1;
Some time in the past, there was a patch to add support for interlaced
video that replaced the ancient code
height = norm_maxh(dev) >> 1;
with
height = norm_maxh(dev);
[..some code..]
if (!dev->progressive)
height >>= norm_maxh(dev);
Surprisingly on my desktop computer this code is working. When
norm_maxh(dev) = 576, the shift to the right does not change the value of
height, ie:
height = 576;
height>>=height;
printf("%i\n",height);
returns 576
However, if I compile for arm, the code returns 0
Could you confirm that this is right? (maybe I'm breaking something else)
Once this change is applied, the video is shown ok (at least for a while,
but I thinnk this is another issue)
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