fix st_usleep param from us to ms. (#1236)
fix st_usleep param from us to ms. (#1236)

fix st_usleep param from us to ms.
winlinvip/srs,winlinvip/simple-rtmp-server,ossrs/srs,ossrs/srs,winlinvip/srs,winlinvip/srs,ossrs/srs,ossrs/srs,winlinvip/srs,ossrs/srs,winlinvip/srs,winlinvip/srs,ossrs/srs