On Sat, 24 Jan 2009, Marko Cebokli wrote:
> I managed to compile the y4mscaler.c that was attached to a previous message
> of another thread (10 min ago).
Good! Maybe in the future there will be either a 0.91 version of
y4mscaler or the program will be integrated into mjpegtools.
> But when I try y4mstabilizer with it and 4:4:4 (using the exact y4mscaler
> options from the y4mstabilizer help) , I get exactly the same problem, brief
> flash of first frame and then a green frame that floats away....
Oh, ok - I misunderstood the problem. I thought the entire frame
turned green. Anyhow, that 'green' is 0/0/0 in YUV so something is
zero filling a buffer.
Since there are only 3 uses of bcopy it was not too much effort to
change them to use memmove. I used memmove instead of memcpy because
the manpages state that memmove correctly handles overlapping copies
while memcpy does not. BSD versions of bcopy also handle overlapping
buffers correctly but perhaps other systems do not.
Since the problem doesn't happen on my system I can't test the change.
Try the CVS version of mjegtools and see if the problem goes away. If
it does then the released packages can be updated.
Cheers,
Steven Schultz
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