Methods, systems, and media for synchronized media content playback on multiple devices

1. A method for synchronizing playback of media content, the method comprising:

receiving, at a server, a first communication to present a media content item from a first user device and a second communication to present the media content item from a second user device;

transmitting, from the server to the first user device and to the second user device, media content data corresponding to the media content item for storage on the first user device and the second user device;

receiving, at a first time point, a message from the first user device that includes an indication that the first user device has buffered a predetermined amount of the media content data and a communication to begin presenting the media content item on the first user device;

receiving, at a second time point, a message from the second user device that includes an indication that the second user device has buffered the predetermined amount of the media content data and a communication to begin presenting the media content item on the second user device;

in response to determining that the first user device and the second user device have each buffered the predetermined amount of the media content data, transmitting instructions to the first user device and to the second user device that cause the first user device and the second user device to begin presenting the media content item;

receiving, from a third user device, after transmitting instructions to the first user device and the second user device that cause the first user device and the second user device to begin presenting the media content item, a communication to join presentation of the media content item;

determining a playback position from which the third user device is to begin presentation of the media content item, wherein the first user device and the second user device have not yet reached the playback position; and

transmitting instructions to the third user device to begin presentation of the media content item from the playback position at a specified time in response to receiving an indication from the third user device that the predetermined amount of the media content data that corresponds to media content after the playback position has been buffered by the third user device.

2. The method of claim 1 , further comprising:

in response to determining that the first user device has buffered the predetermined amount of the media content data and in response to determining that the second user device has not buffered the predetermined amount of the media content data, transmitting a message to the first user device indicating the presentation of the media content item is not to begin.

3. The method of claim 1 , further comprising:

receiving, from the first user device, an indication that additional media content data is to be buffered by the first user device;

transmitting the additional media content data to the first user device; and

transmitting instructions to the first user device to speed up playback of the media content item for a predetermined duration of time.

4. The method of claim 1 , further comprising:

receiving, from the first user device, an indication that additional media content data is to be buffered by the first user device;

transmitting the additional media content data to the first user device; and

transmitting instructions to the second user device to slow down playback of the media content item for a predetermined duration of time.

5. A system for synchronizing playback of media content, the system comprising:

a memory; and

a hardware processor that, when executing computer executable instructions stored in the memory, is configured to:

receive, at a server, a first communication to present a media content item from a first user device and a second communication to present the media content item from a second user device;

transmit, from the server to the first user device and to the second user device, media content data corresponding to the media content item for storage on the first user device and the second user device;

receive, at a first time point, a message from the first user device that includes an indication that the first user device has buffered a predetermined amount of the media content data and a communication to begin presenting the media content item on the first user device;

receive, at a second time point, a message from the second user device that includes an indication that the second user device has buffered the predetermined amount of the media content data and a communication to begin presenting the media content item on the second user device;

in response to determining that the first user device and the second user device have each buffered the predetermined amount of the media content data, transmit instructions to the first user device and to the second user device that cause the first user device and the second user device to begin presenting the media content item;

receive, from a third user device, after transmitting instructions to the first user device and the second user device that cause the first user device and the second user device to begin presenting the media content item, a communication to join presentation of the media content item;

determine a playback position from which the third user device is to begin presentation of the media content item, wherein the first user device and the second user device have not yet reached the playback position; and

transmit instructions to the third user device to begin presentation of the media content item from the playback position at a specified time in response to receiving an indication from the third user device that the predetermined amount of the media content data that corresponds to media content after the playback position has been buffered by the third user device.

6. The system of claim 5 , wherein the hardware processor is further configured to:

in response to determining that the first user device has buffered the predetermined amount of the media content data and in response to determining that the second user device has not buffered the predetermined amount of the media content data, transmit a message to the first user device indicating the presentation of the media content item is not to begin.

7. The system of claim 5 , wherein the hardware processor is further configured to:

receive, from the first user device, an indication that additional media content data is to be buffered by the first user device;

transmit the additional media content data to the first user device; and

transmit instructions to the first user device to speed up playback of the media content item for a predetermined duration of time.

8. The system of claim 5 , wherein the hardware processor is further configured to:

receive, from the first user device, an indication that additional media content data is to be buffered by the first user device;

transmit the additional media content data to the first user device; and

transmit instructions to the second user device to slow down playback of the media content item for a predetermined duration of time.

9. A non-transitory computer-readable medium containing computer executable instructions that, when executed by a processor, cause the processor to perform a method for synchronizing playback of media content, the method comprising:

receiving, at a server, a first communication to present a media content item from a first user device and a second communication to present the media content item from a second user device;

transmitting, from the server to the first user device and to the second user device, media content data corresponding to the media content item for storage on the first user device and the second user device;

receiving, at a first time point, a message from the first user device that includes an indication that the first user device has buffered a predetermined amount of the media content data and a communication to begin presenting the media content item on the first user device;

receiving, at a second time point, a message from the second user device that includes an indication that the second user device has buffered the predetermined amount of the media content data and a communication to begin presenting the media content item on the second user device;

in response to determining that the first user device and the second user device have each buffered the predetermined amount of the media content data, transmitting instructions to the first user device and to the second user device that cause the first user device and the second user device to begin presenting the media content item;

receiving, from a third user device, after transmitting instructions to the first user device and the second user device that cause the first user device and the second user device to begin presenting the media content item, a communication to join presentation of the media content item;

determining a playback position from which the third user device is to begin presentation of the media content item, wherein the first user device and the second user device have not yet reached the playback position; and

transmitting instructions to the third user device to begin presentation of the media content item from the playback position at a specified time in response to receiving an indication from the third user device that the predetermined amount of the media content data that corresponds to media content after the playback position has been buffered by the third user device.

10. The non-transitory computer-readable medium of claim 9 , wherein the method further comprises:

in response to determining that the first user device has buffered the predetermined amount of the media content data and in response to determining that the second user device has not buffered the predetermined amount of the media content data, transmitting a message to the first user device indicating the presentation of the media content item is not to begin.

11. The non-transitory computer-readable medium of claim 9 , wherein the method further comprises:

receiving, from the first user device, an indication that additional media content data is to be buffered by the first user device;

transmitting the additional media content data to the first user device; and

transmitting instructions to the first user device to speed up playback of the media content item for a predetermined duration of time.

12. The non-transitory computer-readable medium of claim 9 , wherein the method further comprises:

receiving, from the first user device, an indication that additional media content data is to be buffered by the first user device;

transmitting the additional media content data to the first user device; and

transmitting instructions to the second user device to slow down playback of the media content item for a predetermined duration of time.