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-rw-r--r--libavcodec/iff.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/iff.c b/libavcodec/iff.c
index 9184015d50..9582f9d25d 100644
--- a/libavcodec/iff.c
+++ b/libavcodec/iff.c
@@ -231,7 +231,7 @@ static int extract_header(AVCodecContext *const avctx,
s->transparency = bytestream_get_be16(&buf);
s->masking = bytestream_get_byte(&buf);
if (s->masking == MASK_HAS_MASK) {
- if (s->bpp >= 8) {
+ if (s->bpp >= 8 && !s->ham) {
avctx->pix_fmt = AV_PIX_FMT_RGB32;
av_freep(&s->mask_buf);
av_freep(&s->mask_palbuf);