Method and device for playing multimedia data synchronously

An electronic device, comprising:

• at least one processor;
• and
• a memory communicably connected with the at least one processor for storing instructions executable by the at least one processor, wherein execution of the instructions by the at least one processor causes the at least one processor to:
• synchronize a clock of each multimedia playing device according to a data transmission delay of time of the multimedia playing device;
• receive multimedia data comprising a timestamp indicating a play instance of time of each frame of the multimedia data;
• and
• calculate a playback instance of time of each frame of the multimedia data according to an instance of time of the synchronized clock, a target data transmission delay of time, a period of time for which each frame of the multimedia data is buffered in the multimedia playing device and the play instance of time of each frame of the multimedia data indicated by the timestamp, and transmit the multimedia data and the playback instance of time of each frame of the multimedia data to a plurality of multimedia playing devices to instruct the plurality of multimedia playing devices each to play back the multimedia data according to a relationship between the received playback instance of time of each frame of the multimedia data and a current instance of time of a clock thereof, where the target data transmission delay of time is determined among the data transmission delays of time of the plurality of multimedia playing devices under a preset rule.

A non-transitory computer-readable storage medium storing executable instructions that, when executed by an electronic device with a touch-sensitive display, cause the electronic device to:

• synchronize a clock of each multimedia playing device according to a data transmission delay of time of the multimedia playing device;
• receive multimedia data comprising a timestamp indicating a play instance of time of each frame of the multimedia data;
• and
• calculate a playback instance of time of each frame of the multimedia data according to an instance of time of the synchronized clock, a target data transmission delay of time, a period of time for which each frame of the multimedia data is buffered in the multimedia playing device and the play instance of time of each frame of the multimedia data indicated by the timestamp, and transmit the multimedia data and the playback instance of time of each frame of the multimedia data to a plurality of multimedia playing devices to instruct the plurality of multimedia playing devices each to play back the multimedia data according to a relationship between the received playback instance of time of each frame of the multimedia data and a current instance of time of a clock thereof, where the target data transmission delay of time is determined among the data transmission delays of time of the plurality of multimedia playing devices under a preset rule.