windows 10: process 1 output used as process 2 input: pipes

process 1 :
adb shell screenrecord --bit-rate 6000000 --size 1280x720 --output-format=h264 -

process 2:
ffplay -f h264

normally ffplay takes its input as an argument (-i _input)

How to pipe those processes ? The output of process 1 must be the input of process 2