[FFmpeg-devel] [PATCH] PAFF: Derivation process for chroma motion vector

Carl Eugen Hoyos cehoyos
Sun Oct 14 20:41:45 CEST 2007


Attached is a patch that removes smearing from PAFF test files I use. It
implements Table 8-10 (Derivation of the vertical component of the
chroma vector in field coding mode) by only allowing my to be changed if
the reference picture is a field. (Cosmetic patch will be applied if

For my sample, it has the same effect as Martin Zlomeks patch: I can't
see any bottom fields being referenced.

Thanks to mru, andoma and haali on #ffmpeg!

Carl Eugen
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