VIDEO PROCESSING APPARATUS, CONTROL METHOD, AND EFFECT SWITCHER

摘要

There is provided a video processing apparatus that includes a network interface, first and second video buffering sections, a video supply section, a video control section, and a command issue section. The two video buffering sections are configured to receive and store video data coming in packets over a network via the network interface. The video supply section is configured to supply a video signal to a video signal line, the video signal being a selected output from one of the first and second video buffering sections. The video control section is configured to execute control over the other components. The command issue section is configured to send a bus input change command to the video control section as an instruction for video data selection for supply to the video signal line, the bus input change command including information about identifying a video data supply source connected over the network.

主权项

1. A video processing apparatus, comprising:
a network interface; a first video buffering section and a second video buffering section each configured to receive and store video data coming in packets over a network via the network interface; a video supply section configured to supply a video signal to a video signal line, the video signal being a selected output from one of the first video buffering section and the second video buffering section; a video control section configured to execute control over the other components; and a command issue section configured to send a bus input change command to the video control section as an instruction for video data selection for supply to the video signal line, the bus input change command including information about identifying a video data supply source connected over the network, the video control section being configured to, when receiving the bus input change command in a state that the output from the first video buffering section is being selected by the video supply section,
send a packet transmission request to the video data supply source that is connected over the network and identified by the bus input change command, and change the video data being received by the second video buffering section to the video data instructed by the bus input change command, andcause, after detecting that the video data stored in the second video buffering section exceeds a predetermined amount, the video supply section to select the output from the second video buffering section at an image frame or field boundary in the video data being the output from the first video buffering section, and cause the video supply section to supply the video data stored in the second video buffering section to the video signal line at the image frame or field boundary therein.