（）视频合拍的核心接口与样本视频按照设定的样式进行合拍 A: PLShortVideoMixRecorder B: PLShortVideoMaxRecorder C: PLShrtVideoMixRecorder D: PLShortVideoMixRecordr
（）视频合拍的核心接口与样本视频按照设定的样式进行合拍 A: PLShortVideoMixRecorder B: PLShortVideoMaxRecorder C: PLShrtVideoMixRecorder D: PLShortVideoMixRecordr
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