On Thu, Feb 11, 2016 at 01:15:38AM +0100, Mats Peterson wrote: > On 02/11/2016 01:11 AM, Mats Peterson wrote: > >On 02/11/2016 12:07 AM, Mats Peterson wrote: > >>For black & white AVI or QuickTime files, in order to produce a > >>monochrome nut file, force the pixel format with "-pix_fmt monow" or > >>"-pix_fmt monob". > >> > >>Unfortunately, there is a problem with converting from pal8 to monow, > >>and I know what it is now. There seems to be some weird dithering going > >>on of the white color, so there will be black pixels here and there in > >>the monow output. A better way is to use "ffmpeg -i 1bpp.avi -vcodec > >>copy -vtag B1W0 1bpp.nut". The "-vtag" option is currently needed, > >>otherwise FFmpeg will use a RGB[15] codec tag for some reason. > >> > > > >An alternative is to use "-sws_dither none", it seems to work fine. I > >just don't understand why the fully white color is dithered at all when > >converting from pal8 to monow. > > > > Nope, doesn't work. I forgot to use "-pix_fmt monow", and it's the > same as before.
have you tried updating your git checkout ? it might be fixed by: 23261e60014908da7446e9b5bc7401dc30fdecd6 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The educated differ from the uneducated as much as the living from the dead. -- Aristotle
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