An apparatus according to one aspect of the present disclosure includes: one or more memories, and circuitry which, in operation; decodes a video stream to generate a first video signal with a first luminance range; acquires characteristic data indicating the luminance range of the first video signal; converts the characteristic data into control information according to a predetermined transmission protocol; and outputs the control information in accordance with the predetermined transmission protocol.

A video interface conversion apparatus comprises a video interface circuit, a video clock adjustment information generation circuit and a video clock recovery circuit. The video interface circuit generates at least one original synchronization signal according to a control signal, and fetches video data from a data signal according to a video synchronization signal. The video clock adjustment information generation circuit generates video clock adjustment information and the video synchronization signal according to the original video synchronization signal and a video clock. The video clock recovery circuit receives an original clock and the video clock adjustment information, and recovers the video clock by adjusting the original clock according to the video clock adjustment information.

A video interface conversion apparatus comprises a video interface circuit, a video clock adjustment information generation circuit and a video clock recovery circuit. The video interface circuit generates at least one original synchronization signal according to a control signal, and fetches video data from a data signal according to a video synchronization signal. The video clock adjustment information generation circuit generates video clock adjustment information and the video synchronization signal according to the original video synchronization signal and a video clock. The video clock recovery circuit receives an original clock and the video clock adjustment information, and recovers the video clock by adjusting the original clock according to the video clock adjustment information.

A moving image capturing instructing terminal includes a communicator, a monitor, a memory, and a control unit. The control unit transmits recording start instruction information to a camera through the communicator. After the recording start instruction information is transmitted, the control unit receives moving image recording information related to the recording of the moving image from the camera through the communicator. After the recording start instruction information is transmitted, the control unit displays at least one of a scheduled recording period of time and a combination of a scheduled recording start time and a scheduled recording stop time through the monitor. After the moving image recording information is received, the control unit displays at least one of a recording period of time and a combination of a recording start time and a recording stop time through the monitor.

A moving image capturing instructing terminal includes a communicator, a monitor, a memory, and a control unit. The control unit transmits recording start instruction information to a camera through the communicator. After the recording start instruction information is transmitted, the control unit receives moving image recording information related to the recording of the moving image from the camera through the communicator. After the recording start instruction information is transmitted, the control unit displays at least one of a scheduled recording period of time and a combination of a scheduled recording start time and a scheduled recording stop time through the monitor. After the moving image recording information is received, the control unit displays at least one of a recording period of time and a combination of a recording start time and a recording stop time through the monitor.

An image processing method based on a vertical synchronization signal and an electronic device, related to the field of image processing and display technologies. The method includes that the electronic device draws one or more layers in response to a first vertical synchronization signal; and the electronic device renders, in response to a second vertical synchronization signal, the layers drawn by the electronic device.