Tests

read_video: accept BytesIO on pyav backend #2784

Job	Run time
onnx / linux-job	4m 51s
unittests-extended / linux-job	17m 25s
unittests-linux (3.10, linux.12xlarge, cpu) / linux-job	23m 8s
unittests-linux (3.11, linux.12xlarge, cpu) / linux-job	21m 13s
unittests-linux (3.12, linux.12xlarge, cpu) / linux-job	22m 7s
unittests-linux (3.8, linux.12xlarge, cpu) / linux-job	23m 11s
unittests-linux (3.8, linux.g5.4xlarge.nvidia.gpu, cuda, 11.8) / linux-job	20m 56s
unittests-linux (3.9, linux.12xlarge, cpu) / linux-job	22m 54s
unittests-macos (3.10, macos-m1-stable) / macos-job	24m 14s
unittests-macos (3.11, macos-m1-stable) / macos-job	21m 30s
unittests-macos (3.12, macos-m1-stable) / macos-job	24m 21s
unittests-macos (3.8, macos-m1-stable) / macos-job	29s
unittests-macos (3.9, macos-m1-stable) / macos-job	28s
unittests-windows (3.10, windows.4xlarge, cpu) / windows-job	3m 3s
unittests-windows (3.11, windows.4xlarge, cpu) / windows-job	3m 5s
unittests-windows (3.12, windows.4xlarge, cpu) / windows-job	3m 10s
unittests-windows (3.8, windows.4xlarge, cpu) / windows-job	4m 12s
unittests-windows (3.8, windows.g5.4xlarge.nvidia.gpu, cuda, 11.8) / windows-job	24m 26s
unittests-windows (3.9, windows.4xlarge, cpu) / windows-job	3m 0s
	4h 27m 43s

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