Method for controlling video call and electronic device thereof

1. A foldable electronic device comprising:

a sensor circuit configured to detect folding or unfolding of the foldable electronic device;

at least one display;

a communication circuit;

a memory; and

at least one processor operatively connected to the at least one display, the communication circuit, and the memory, wherein the at least one processor is configured to:

obtain information on a first display aspect ratio associated with a current state of the at least one display in response to receiving an input indicating initiation of a video call;

determine at least one first image ratio associated with the video call based on the information on the first display aspect ratio;

transmit, to an external electronic device, a first signal including information on the at least one first image ratio by using the communication circuit;

receive, from the external electronic device, a second signal including information on a second image ratio associated with the video call by using the communication circuit;

perform the video call by using the communication circuit based on the second image ratio;

detect the folding or unfolding of the foldable electronic device by using the sensor circuit while performing the video call; and

renegotiate an image ratio associated with the video call with the external electronic device based on a second display aspect ratio of the at least one display changed with the folding or unfolding of the foldable electronic device.

2. The foldable electronic device of claim 1 , wherein the at least one processor is configured to:

receive, from the external electronic device, video data by using the communication circuit; and

display the video data on the at least one display at the second image ratio.

3. The foldable electronic device of claim 1 , wherein the at least one processor is configured to renegotiate the image ratio associated with the video call by transmitting, to the external electronic device, a session initiation protocol (SIP) RE-INVITE message including a third image ratio corresponding to the second display aspect ratio by using the communication circuit.

4. The foldable electronic device of claim 1 , wherein the sensor circuit includes at least one of at least one acceleration sensor, at least one gyro sensor, or at least one hinge sensor.

5. The foldable electronic device of claim 1 , wherein the at least one display changes a display to be used for the video call or a display region to be used for the video call with the folding or unfolding of the foldable electronic device.

6. The foldable electronic device of claim 1 , wherein the at least one processor is configured to output, to the at least one display, an image corresponding to the video call at the second image ratio when the second image ratio is the same as the first image ratio.

7. The foldable electronic device of claim 1 , wherein the at least one processor is configured to provide guide information indicating the folding or unfolding of the foldable electronic device when the second image ratio is different from the first image ratio.

8. The foldable electronic device of claim 1 , wherein the first signal includes a session initiation protocol (SIP) INVITE message.

9. The foldable electronic device of claim 8 , wherein the information on the at least one first image ratio includes a video codec list including information on a plurality of video codecs supported by the foldable electronic device, and

a video codec corresponding to the first display aspect ratio is set to include a predefined priority in the video codec list.

10. A method for performing a video call by a foldable electronic device, the method comprising:

receiving an input indicating initiation of a video call;

obtaining information on a first display aspect ratio associated with a current state of at least one display of the foldable electronic device;

determining at least one first image ratio associated with the video call based on the information on the first display aspect ratio;

transmitting, to an external electronic device, a first signal including information on the at least one first image ratio;

receiving, from the external electronic device, a second signal including information on a second image ratio associated with the video call;

performing the video call based on the second image ratio;

detecting folding or unfolding of the foldable electronic device during the performing of the video call; and

renegotiating an aspect ratio associated with the video call with the external electronic device based on a second display aspect ratio of the at least one display changed with the folding or unfolding of the foldable electronic device, in response to detecting the folding or unfolding.

11. The method of claim 10 , wherein performing of the video call comprises:

receiving video data from the external electronic device; and

displaying the video data on the at least one display at the second image ratio.

12. The method of claim 10 , wherein renegotiating of the aspect ratio associated with the video call with the external electronic device comprises transmitting, to the external electronic device, a session initiation protocol (SIP) RE-INVITE message including third image ratio information corresponding to the second display aspect ratio.

13. The method of claim 10 , wherein detecting of the folding or unfolding of the foldable electronic device comprises detecting the folding or unfolding of the foldable electronic device by using at least one of at least one acceleration sensor, at least one gyro sensor, or at least one hinge sensor.

14. The method of claim 10 , wherein the at least one display changes a display to be used for the video call or a display region to be used for the video call with the folding or unfolding of the foldable electronic device.

15. The method of claim 10 , wherein performing of the video call based on the second image ratio comprises outputting, to the at least one display, an image corresponding to the video call at the second image ratio when the second image ratio is the same as the first image ratio.

16. The method of claim 10 , wherein performing of the video call based on the second image ratio comprises providing guide information indicating the folding or unfolding of the foldable electronic device when the second image ratio is different from the first image ratio.

17. The method of claim 10 , wherein the first signal comprises a session initiation protocol (SIP) INVITE message.

18. The method of claim 10 , wherein the information on the at least one first image ratio comprises a video codec list including information on a plurality of video codecs supported by the foldable electronic device, and

a video codec corresponding to the first display aspect ratio is set to include a predefined priority in the video codec list.