Il 18/12/2014 11:06, Rémi Denis-Courmont ha scritto:
Hello,
Le 2014-12-07 01:37, Francesco Muzio a écrit :
The bug has been debated here
https://trac.videolan.org/vlc/ticket/12622
And here seems to be found a possible patch, not yet applied
https://trac.videolan.org/vlc/attachment/ticket/12622/vlc-2.2-greenline.patch
That patch is incomplete and I suspect it will lead to crashes in some
cases.
you are right.
I still consider this a bug in XVideo drivers, but there is a
work-around in VLC now. Unfortunately, that means XVideo output will
require memory copying. This is not avoidable without a fix for the
XVideo drivers (which is unlikely to happen anytime soon).
it's strange that a bug happens with two different drivers at same time
Probably this bug happen only with libav and not with ffmpeg
So that sentence sounds a lot like trolling libav developers and the
choice of libav by the Debian multimedia team. I don't know where you
stand on libav vs ffmpeg, but the green line issue is solely between
VLC and the XVideo drivers. VLC and at least some XVideo drivers
disagree on how scaling cropped pictures should be achieved.
I haven't any position in the libav vs ffmpeg debate. It's simply an
observation, because this bug seems reproducible for only few users.
For my experience, on Debian, this bug affect machine with Intel and
Radeon drivers, but not with the nouveau driver. But I have tested only
VLC builded with libav.
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