Broadcasting signal transmission device, broadcasting signal reception device, broadcasting signal transmission method, and broadcasting signal reception method

A device processing a broadcast content, the device comprising:

• a receiver configured to receive a broadcast content of a broadcast service;
• a display screen configured to display the broadcast content;
• a user interface managing processor configured to detect a first user input;
• an extractor configured to extract information for controlling execution of an application embedded in an audio component of the broadcast content, and information for controlling execution of the application embedded in a video component of the broadcast content;
• and
• a controller configured to control execution of the application, wherein:
• in response to the first user input that is to display an ESG, the display screen is further configured to display the ESG overlaid on the broadcast content being displayed on the display screen, the extractor is configured to determine whether the information for controlling execution of the application embedded in the audio component is received, and the controller is configured to control the execution of the application based on the determination;
• or
• in response to the first user input that indicates a mute mode to mute sound of the broadcast content, the extractor is further configured to determine whether the information for controlling execution of the application embedded in the video component is received, and the controller is configured to control the execution of the application based on the determination.