@@ -62,6 +62,7 @@ static int nc_read_header(AVFormatContext *s, AVFormatParameters *ap)

 static int nc_read_packet(AVFormatContext *s, AVPacket *pkt)

 {

     int size;

+    int ret;

     uint32_t state=-1;

     while (state != NC_VIDEO_FLAG) {

@@ -79,7 +80,7 @@ static int nc_read_packet(AVFormatContext *s, AVPacket *pkt)

         return AVERROR(EAGAIN);

     }

-    int ret = av_get_packet(s->pb, pkt, size);

+    ret = av_get_packet(s->pb, pkt, size);

     if (ret != size) {

         if (ret > 0) av_free_packet(pkt);

         return AVERROR(EIO);