---
libavcodec/pngdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index a96667f..0ba2749 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -933,7 +933,11 @@ static int handle_p_frame_apng(AVCodecContext *avctx,
PNGDecContext *s,
pd += s->image_linesize;
pd_last += s->image_linesize;
}
+ } else {
+ pd += s->cur_h * s->image_linesize;
+ pd_last += s->cur_h * s->image_linesize;
}
+
for (j = s->y_offset + s->cur_h; j < s->height; j++) {
for (i = 0; i < ls; i++)
pd[i] = pd_last[i];
--
2.2.0
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