For #1657, Fix utest fail
For #1657, Fix utest fail

winlinvip/srs,ossrs/srs,ossrs/srs,winlinvip/srs,winlinvip/srs,winlinvip/simple-rtmp-server,winlinvip/srs,ossrs/srs,winlinvip/srs,ossrs/srs,winlinvip/srs,ossrs/srs,ossrs/srs