How to set the sub-stream preview resolution/bit rate?
Source：24小时微信小妹快餐_本地附近站衔女_上门卖身电话100元2020-06-04
The sub-stream is the stream used for network transmission and multi-screen preview. Generally, the value is small, which can ensure the smoothness of network transmission and realize multi-screen preview locally. Therefore, there is no strict resolution and bit rate standard. Generally, it is recommended that the resolution is CIF and the bit rate is 512K, which can be adjusted according to the actual situation. If the video takes the main stream, it will not affect the video clarity.
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