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-rw-r--r--libavcodec/mjpegdec.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index 87c5862a49..8bf950db6a 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -2195,11 +2195,13 @@ the_end:
}
} else if (s->upscale_h[p] == 2) {
if (is16bit) {
- ((uint16_t*)line)[w - 1] =
- ((uint16_t*)line)[w - 2] = ((uint16_t*)line)[(w - 1) / 3];
+ ((uint16_t*)line)[w - 1] = ((uint16_t*)line)[(w - 1) / 3];
+ if (w > 1)
+ ((uint16_t*)line)[w - 2] = ((uint16_t*)line)[w - 1];
} else {
- line[w - 1] =
- line[w - 2] = line[(w - 1) / 3];
+ line[w - 1] = line[(w - 1) / 3];
+ if (w > 1)
+ line[w - 2] = line[w - 1];
}
for (index = w - 3; index > 0; index--) {
line[index] = (line[index / 3] + line[(index + 1) / 3] + line[(index + 2) / 3] + 1) / 3;