add adaptive streaming; #1408

Job	Run time
Build (x86_64-pc-windows-msvc)	6m 20s
Build (aarch64-pc-windows-msvc)	6m 29s
Build (x86_64-apple-darwin)	6m 24s
Build (aarch64-apple-darwin)	7m 9s
Build (aarch64-apple-ios)	7m 55s
Build (aarch64-apple-ios-sim)	5m 56s
Build (x86_64-unknown-linux-gnu)	3m 44s
Build (aarch64-unknown-linux-gnu)	5m 22s
Build (aarch64-linux-android)	4m 9s
Build (armv7-linux-androideabi)	3m 50s
Build (x86_64-linux-android)	3m 46s
	1h 1m 4s

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