[MEncoder-users] libavcodec vs. xvid for decoding xvid

Michael Niedermayer michaelni at gmx.at
Tue Dec 20 22:21:42 CET 2005


After some disscussion with doom9 via private mail ive realized that i made
a mistake and forgot to test his xvid sample (xvid-clip.avi) this one indeed
is decoded slightly differently in libavcodec and xvid, the cause is the
combination of b frames with qpel, while i did test both i didnt test them
the difference is caused by several bugs, the only one i found sofar, but
there must be more, is the chroma MV rounding for direct MBs in xvid, ive
reported that one to xvid-dev ...


More information about the MEncoder-users mailing list