Method and corresponding device for streaming video data

A transmitting method for transmitting video data to a client, the method comprising:

• transmitting, to the client, a notification including (i) spatial position information representing, by a pixel position on a frame of a video, a spatial position of each of n spatial regions of the video, n being an integer, and (ii) spatial size information representing a spatial size of each of the n spatial regions of the video,
• receiving, from the client which received the notification, information relating to identification of one or more spatial regions from among the n spatial regions defined in the notification, the one or more spatial regions corresponding to video data to be transmitted to the client, and
• transmitting, to the client, the video data corresponding to the one or more spatial regions which are identified according to the information received from the client.

A method for receiving video data from a server, the method comprising:

• receiving, from the server, a notification including (i) spatial position information representing, by a pixel position on a frame of a video, a spatial position of each of n spatial regions of the video, n being integer, and (ii) spatial size information representing a spatial size of each of the n spatial regions of the video,
• transmitting, to the server, information relating to identification of one or more spatial regions from among the n spatial regions defined in the notification, the one or more spatial regions corresponding to video data to be transmitted from the server, and
• receiving, from the server, the video data corresponding to the one or more spatial regions according to the information transmitted to the server.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method for transmitting video data to a client, the method comprising:

• transmitting, to the client, a notification including (i) spatial position information representing, by a pixel position on a frame of a video, a spatial position of each of n spatial regions of the video, n being an integer, and (ii) spatial size information representing a spatial size of each of the n spatial regions of the video,
• receiving, from the client which received the notification, information relating to identification of one or more spatial regions from among the n spatial regions defined in the notification, the one or more spatial regions corresponding to video data to be transmitted to the client, and
• transmitting, to the client, the video data corresponding to the one or more spatial regions which are identified according to the information received from the client.