Op 15 apr 2009, om 16:40 heeft Stas Oskin het volgende geschreven:
Hi.
I would actually suspect a decoder issue. Stas didn't say in what
player he
made the screenshots? I have encountered something like this in the
past
with MPEG-2 or DV sources as I recall. The issue was something in
Quicktime
decoding/displaying the video differently to FFmpeg or libmpeg2 or
so. I
don't remember precisely what it was, maybe Baptiste knows of some
issue in
Quicktime.
The 2nd snapshot was created by VLC, which AFAIK based on FFMPEG as
well.
The YUV are coming from 3rd party decoder, which converts their
proprietary
media to YUV format.
By the way, what people use to view YUV data?
Are you sure that this isn't the result of the wrong scaling?
interpreting YCbCr with its 16-235 range as if it where YUV 0-255.
It's a common mistake to make, but it can be tricky to track down
where the wrong interpretation is made.
- arjan
_______________________________________________
libav-user mailing list
[email protected]
https://lists.mplayerhq.hu/mailman/listinfo/libav-user
