| 摘要 |
According to one embodiment, a data transmission apparatus classifies a plurality of electronic devices into a plurality of groups in accordance with functions of the electronic devices, and generates list information indicative of a list of structures of the groups. Each of the groups includes a combination of an electronic device which is usable for video display and an electronic device which is usable for audio output, or an electronic device which is usable for both the video display and the audio output. The data transmission apparatus transmits the generated list information to the source device. In accordance with selection information which is output from the source device, the video transmission apparatus specifies destinations of transmission of video data and audio data which are output form the source device.
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