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-rw-r--r--libavcodec/pngenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index 1d362b577e..a29d3c95cf 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -322,7 +322,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
}
/* write png header */
- memcpy(s->bytestream, ff_pngsig, 8);
+ AV_WB64(s->bytestream, PNGSIG);
s->bytestream += 8;
AV_WB32(s->buf, avctx->width);