Fix bad rendering of AV_PIX_FMT_PAL8 (palette-ised) images (#1426).

diff --git a/src/lib/image.cc b/src/lib/image.cc
index dffc00e0ea2ed6d1e101f1711035dd22bef9d67a..41582f307b30b23bce02603aad7c9f74bae1f6f0 100644 (file)
--- a/src/lib/image.cc
+++ b/src/lib/image.cc
@@ -106,6 +106,10 @@ Image::planes () const
                throw PixelFormatError ("planes()", _pixel_format);
        }
 
+       if (_pixel_format == AV_PIX_FMT_PAL8) {
+               return 2;
+       }
+
        if ((d->flags & AV_PIX_FMT_FLAG_PLANAR) == 0) {
                return 1;
        }