Only use PAL8 if palette is present, else use GRAY8 for pixfmt.
Instead of simulating a grayscale palette, use real grayscale pixels, if no palette is actually defined.
2597a84 tiff: Improve grayscale support
libavcodec/tiff.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
Upstream: git.libav.org