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avcodec/pngdec: apng: fix output buffer filling when no blending is needed.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Benoit Fouet
2014-11-28 16:54:09 +01:00
committed by Michael Niedermayer
parent 885a763cac
commit ebf2052a61
1 changed files with 10 additions and 0 deletions
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10
libavcodec/pngdec.c
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@@ -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];