ico: consider IconEntry.NumColors of 255 to be ambiguous

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · bd3a12d68d
parent 3e8a368b2b
commit bd3a12d68d
1 changed files with 2 additions and 0 deletions
--- a/libavformat/icodec.c
+++ b/libavformat/icodec.c
@ -76,6 +76,8 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
        st->codec->width      = avio_r8(pb);
        st->codec->height     = avio_r8(pb);
        ico->images[i].nb_pal = avio_r8(pb);
+        if (ico->images[i].nb_pal == 255)
+            ico->images[i].nb_pal = 0;

        avio_skip(pb, 3);
        st->codec->bits_per_coded_sample = avio_rl16(pb);