Electronic apparatus and control method thereof

1. An electronic apparatus comprising:

a communication interface;

a display; and

a processor configured to:

based on a content being received from a source apparatus via the communication interface, obtain feature information of the received content, and transmit the obtained feature information to a8n external server;

receive, from the external server, identification information of the content, the identification information being obtained based on the transmitted feature information;

based on a predetermined display mode being activated according to a signal that is received from the source apparatus via the communication interface, obtain information regarding a first time point when the predetermined display mode is activated;

based on the predetermined display mode being deactivated, obtain information regarding a second time point when the predetermined display mode is deactivated after the first time point; and

obtain information regarding the content that is displayed via the display, based on the received identification information, the obtained information regarding the first time point, and the obtained information regarding the second time point,

wherein the signal received from the source apparatus includes control information for allowing the electronic apparatus to activate or deactivate the predetermined display mode based on a type of the content received from the source apparatus,

wherein the control information includes instruction information for changing a response time of the display based on the type of the content, and

wherein the predetermined display mode is an automatic low-latency mode (ALLM).

2. The electronic apparatus according to claim 1 , wherein the processor is further configured to:

identify a title of the displayed content, based on the identification information received from the external server; and

identify a reproduction time period of the content of which the title is identified, based on the obtained information regarding the first time point and the obtained information regarding the second time point.

3. The electronic apparatus according to claim 1 , wherein the processor is further configured to obtain the identification information of the content, based on the feature information that is obtained after the first time point before the second time point, among a plurality of pieces of the identification information received from the external server.

4. The electronic apparatus according to claim 1 , wherein the control information is provided from the source apparatus to the electronic apparatus supporting an HDMI standard of a predetermined or higher version.

5. The electronic apparatus according to claim 1 , wherein the content is a game content.

6. The electronic apparatus according to claim 1 , wherein the feature information comprises any one or any combination of video feature information and audio feature information, and

wherein the processor is further configured to:

capture images of a content currently being watched among the content received from the source apparatus, at a predetermined time interval;

obtain the video feature information, based on pixel values of the captured images;

obtain frequency information of acoustic information of the content currently being watched, at the predetermined time interval; and

obtain the audio feature information, based on the obtained frequency information.

7. The electronic apparatus according to claim 6 , wherein, based on a number of pieces of the identification information of the content obtained based on the video feature information being more than one, the audio feature information is additionally used for obtaining identification information corresponding to the content currently being watched among a plurality of pieces of the obtained identification information.

8. The electronic apparatus according to claim 6 , wherein the processor is further configured to obtain the video feature information from a predetermined number of recently captured images among the captured images.

9. A method of controlling an electronic apparatus, the method comprising:

based on a content being received from a source apparatus, obtaining feature information of the received content, and transmitting the obtained feature information to an external server;

receiving, from the external server, identification information of the content, the identification information being obtained based on the transmitted feature information;

based on a predetermined display mode of a display of the electronic apparatus being activated according to a signal that is received from the source apparatus, obtaining information regarding a first time point when the predetermined display mode is activated;

based on the predetermined display mode of the display being deactivated, obtaining information regarding a second time point when the predetermined display mode is deactivated after the first time point; and

obtaining information regarding the content that is displayed, based on the received identification information, the obtained information regarding the first time point, and the obtained information regarding the second time point,

wherein the signal received from the source apparatus includes control information for allowing the electronic apparatus to activate or deactivate the predetermined display mode based on a type of the content received from the source apparatus,

wherein the control information includes instruction information for changing a response time of the display based on the type of the content, and

wherein the predetermined display mode is an automatic low-latency mode (ALLM).

10. The method according to claim 9 , wherein the obtaining the information regarding the content comprises:

identifying a title of the displayed content, based on the identification information received from the external server; and

identifying a reproduction time of the content of which the title is identified, based on the obtained information regarding the first time point and the obtained information regarding the second time point.

11. The method according to claim 9 , further comprising obtaining the identification information of the content, based on the feature information that is obtained after the first time point before the second time point, among a plurality of pieces of the identification information received from the external server.

12. The method according to claim 9 , wherein the control information is provided from the source apparatus to the electronic apparatus supporting an HDMI standard of a predetermined or higher version.

13. The method according to claim 9 , wherein the content is a game content.

14. The method according to claim 9 , wherein the feature information comprises any one or any combination of video feature information and audio feature information, and

wherein the obtaining the feature information comprises:

capturing images of a content currently being watched among the content received from the source apparatus, at predetermined time interval;

obtaining the video feature information, based on pixel values of the captured images;

obtaining frequency information of acoustic information of the content currently being watched, at the predetermined time interval; and

obtaining the audio feature information, based on the obtained frequency information.

15. The method according to claim 14 , wherein, based on a number of pieces of the identification information of the content obtained based on the video feature information being more than one, the audio feature information is additionally used for obtaining identification information corresponding to the content currently being watched among a plurality of pieces of the obtained identification information.

16. The method according to claim 14 , wherein the obtaining the video feature information comprises obtaining the video feature information from a predetermined number of recently captured images the captured images.

17. A non-transitory computer-readable storage medium storing instructions that, when executed by at least one processor of an electronic apparatus, cause the at least one processor to:

identify whether a predetermined display mode of a display of the electronic apparatus is activated, based on a signal that is received from a source apparatus;

based on the predetermined display mode of the display being identified to be activated, obtain a first time point at which the predetermined display mode of the display is activated;

obtain feature information from the received signal;

transmit the obtained feature information to an external server;

receive, from the external server, identification information of content corresponding to the transmitted feature information;

based on the predetermined display mode of the display being identified to be deactivated, obtain a second time point at which the predetermined display mode of the display is deactivated, after the first time point; and

obtain information of the content that is displayed via the display, from a portion of the received identification information, the portion corresponding to a time period from the obtained first time point to the obtained second time point,

wherein the signal received from the source apparatus includes control information for allowing the electronic apparatus to activate or deactivate the predetermined display mode based on a type of the content received from the source apparatus,

wherein the control information includes instruction information for changing a response time of the display based on the type of the content, and

wherein the predetermined display mode comprises an automatic low-latency mode (ALLM), and the information of the content comprises either one or both of a title and a type.

18. The non-transitory computer-readable storage medium of claim 17 , wherein the instructions, when executed by the at least one processor, cause the at least one processor to obtain the identification information of the content, based on the feature information that is obtained after the first time point before the second time point, among a plurality of pieces of the identification information received from the external server.