Dropbox, Inc.

Alan Rogers

Daniel Wagner

Jason Stakelon

Siya Yang

Dylan Nelson

Irene Ma

Robert F Mason

Evan Tana

Parker Wilf

Tomaz Nedeljko

Iris Lin

James Espejo

The present disclosure is directed toward systems, methods, and non-transitory computer-readable media for providing a streamed presentation of a video proxy referencing a cloud-based location of a digital video. For example, the disclosed systems receive a request to edit a digital video stored in a cloud-based location of a content management system. In addition, the disclosed systems generate a video proxy that include a reference to the cloud-based location of the digital video and modifies the video proxy in response to an editing operation. Further, the disclosed systems provide for display a streamed presentation of the video proxy depicting modifications defined by the editing operation.

Utilizing proxy-based streaming to provide an end-to-end video editing interface

The present technology pertains to synchronized video viewing that is supported by the use of a pending changes count to keep the client devices in synchronization while providing a user experience that matches the expectations of the user. A second client device can receive input to change some aspect of the playback of a video that is being viewed synchronously with at least one other device. The second client device can process the event so the video can reflect the received input. The second client device can also send a collaboration message to a synchronized video viewing service to inform other client devices of the command. Since the second client device is aware of its own event, the second client device can ignore processing any other collaboration messages until it receives the collaboration message it initiated echoed back to it. Thereafter it can resume processing received collaboration messages.

Synchronized video viewing using a logical clock

Techniques are disclosed for allowing remote participation in collaborative video review based on joint state data, for a video collaboration session, maintained by a video collaboration service. A user at a participant client device may provide one or more annotations, such as a drawing annotation, for the video data via a client application. The client application transmits computer-readable instructions for re-creating the drawing annotation to the service, which distributes the drawing instructions to the other participant client devices. Using the drawing instructions, the client applications at the client devices are configured to re-create the drawing annotation on the associated video frame displayed at the client devices. The joint state data communicated to client devices for a given session may include co-presence data that efficiently increases communication among the participants in a session. Co-presence data received by a participant client device may be depicted in a GUI of the client application.

Techniques for efficient communication during a video collaboration session

Techniques are disclosed for avoiding conflicting user actions while the users synchronously participate in collaborative video review based on joint state data for a video collaboration session. User actions may conflict, e.g., when a user submits a video playback instruction to change the current frame of the session while another user is performing a frame-specific action on the current frame. The video collaboration service freezes the current frame in joint state data based on detecting that a frame-specific action is being performed or is likely imminent. Detecting a freeze condition may be implicit or explicit. In order to unfreeze the current frame of the joint state data, no active freeze conditions may be in effect. Further, the freeze condition may be lifted implicitly or explicitly. A visual video freeze indication may be displayed by one or more client applications participating in the session while a freeze condition is active.

Techniques for avoiding conflicting user actions during a video collaboration session

The present technology pertains to a details pane that is displayed in coordination with a file explorer interface. The details pane can display details including activities, comments, and previews for content items displayed in the details pane. In some embodiments the content items displayed in the file explorer interface can be stored in and accessed from different services, and the details in the details pane can also be populated from diverse sources. In some embodiments, edits or navigations can be performed within a preview of the content item. In some embodiments, comments can be shown along with previews that show the comment located within the content item.

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Fitzroy North, Australia

Alan Rogers