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关于RDK中full features 用例疑问



在full features用例中 cam link出来后分出几路显示,大概如下图所示

                  |->isplink->....->swosdlink->... ->display[HDMI]

 camlink->|->dup[scaler]->displaylink[SD]

  可是在使能swosd之后,从标清视频中也能看到osd,这是为何。标清不是直接从camlink中显示了吗?