--- libavcodec/pngdec.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c index a330d36..9e52d0b 100644 --- a/libavcodec/pngdec.c +++ b/libavcodec/pngdec.c @@ -927,7 +927,17 @@ static int handle_p_frame_apng(AVCodecContext *avctx, PNGDecContext *s, pd += s->image_linesize; pd_last += s->image_linesize; } + } else { + for (j = s->y_offset; j < s->y_offset + s->cur_h; j++) { + for (i = 0; i < s->x_offset * s->bpp; i++) + pd[i] = pd_last[i]; + for (i = (s->x_offset + s->cur_w) * s->bpp; i < ls; i++) + pd[i] = pd_last[i]; + pd += s->image_linesize; + pd_last += 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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