[FFmpeg-devel] [PATCH] lavf/qtpalette: Treat 1-bit video as palettized
Mats Peterson
matsp888 at yahoo.com
Tue Dec 29 06:45:14 CET 2015
This patch for qtpalette.c and qtpalette.h adds 1-bit video to the
"palettized video" category, since if the video sample description
contains a palette, the two colors in the palette can be any color, not
necessarily black & white.
Unfortunately, I've noticed that the qtrle (QuickTime Animation) decoder
blindly assumes that 1-bit video is black & white. I don't have enough
knowledge about the decoder to fix this, though.
Below is a link to a sample 1-bit QuickTime Animation clip of a rotating
earth that uses blueish colors, and they will be correctly rendered in
QuickTime, but not in FFmpeg (which will use black & white).
https://drive.google.com/open?id=0B3_pEBoLs0faUlItWm9KaGJSTEE
Mats
--
Mats Peterson
http://matsp888.no-ip.org/~mats/
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