Simultaneous editing

Abstract: A multimedia document consists of different media objects that are to be sequenced and presented according to temporal and spatial specifications. Collaborative authoring helps in simultaneous editing and viewing of a multimedia document by multiple authors. However, it may cause the objects composing a multimedia document to be distributed over a computer network. In this paper, we propose a framework for distributed multimedia document authoring and presentation. The salient features of this framework are: flexible temporal specification based on difference constraints, system and user defined access filters, local editing, format conversions of media objects, and flexible object retrieval schedules for handling variations in system parameters such as network throughput and buffer resources. We propose shortestpath based algorithms for solving difference constraints. We show how the proposed algorithms can handle local editing and access filtering of multimedia documents. We also describe how the difference constraints based temporal specifications can help in deriving a flexible object retrieval schedule.

Abstract: Methods and systems for remotely editing a video file involve: receiving, at a server, a video editing command from a remote client; modifying, at the server, a virtual representation of a media file in accordance with the received command, the virtual representation including a reference to a source media file stored on a storage device, the storage device being connected to the server over a high-speed link; and generating and transmitting, from the server to the remote client, a proxy representation of the source media file modified by the editing commands, wherein the various regions of the proxy representation are rendered either in the background or in real-time according to their complexity. Rendered frames, whether generated in the background or in real time, are stored for reuse. Individual frames of the edited video file may be transmitted upon request from a client. Simultaneous editing of independent projects by multiple users connected to the server via multiple thin clients is supported.

Abstract: Techniques are disclosed for a web or mobile interface enabling users and collaborators to simultaneously comment, edit, or edit content in real time or near real time managed by a cloud-based collaboration platform. In one embodiment, the data to be accessed concurrently is presented or depicted at the multiple physical devices to the collaborators for viewing and accessing the data in real time or near real time. Each of the collaborators is able to view, re-edit, or re-modify in a concurrent fashion, at the collaborator's physical device, edits or modifications made to the data in real time or near real time as a result of any of the other collaborators accessing the data at their respective physical devices. In some instances, additional collaborators are specifiable for the data created for concurrent real time access in addition to those originally associated with the folder.