Test

fix compile error in srs_protocol_rtmp_stack.cpp #3659

Job	Run time
multiple-arch-aarch64	22m 56s
cygwin64-cache	1m 45s
utest-regression-blackbox-test	8m 8s
multiple-arch-armv7	22m 29s
fast	1s
cygwin64	15m 2s
build-centos7	4m 54s
build-ubuntu18	3m 35s
build-cross-aarch64	5m 20s
build-cross-arm	5m 23s
build-ubuntu16	3m 5s
build-ubuntu20	3m 35s
coverage	3m 42s
multiple-arch-amd64	2m 25s
test-done	0s
	1h 42m 20s

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