Citrix Systems, Inc.

James Michael Page

Todd Giebler

Georgy Momchilov

Vladimir Vysotsky

Hariprasad Chowlur

A virtual desktop server include an application framework comprising a real-time media application to provide real-time communications (RTC), a native RTC engine to execute a portion of the real-time media application when received, and a processor coupled to the application framework and to the native RTC engine. The processor redirects original application program interfaces (APIs) of the real-time media application intended for the native RTC engine based on redirection code injected into the real-time media application so that the portion of the real-time media application is to be redirected. The processor receives from a client computing device capabilities of the client computing device to execute the redirected portion of the real-time media application. The processor switches to a fallback mode if the client computing device has limited capabilities.

WebRTC API redirection with fallbacks

A server includes at least one processor configured to execute a media application to provide media streaming that includes at least one video stream and at least one overlay on the at least one video stream. A portion of the media streaming is redirected by providing a placeholder to indicate positioning geometry of the at least one video stream within a media window, with the placeholder to include the at least one overlay. The processor detects the placeholder and determines positioning geometry associated therewith. A color and an alpha blending factor of the at least one overlay is determined based on calculations involving different colors of the at least one underlay at different times.

Detection and repainting of semi-transparent overlays

A computing system includes a server within an enterprise, with the includes at least one processor to access a real-time media application to provide real-time communications (RTC) for peer-to-peer networking, and intercept APIs of the real-time media application so that a portion of the real-time media application is redirected away from said server. The redirected portion of the real-time media application includes provisioning information directed to a media server. A client device is associated with a branch within the enterprise and includes a processor to execute the redirected portion of the real-time media application, and receive alternative network connectivity options for the peer-to-peer networking from a network edge appliance associated with the branch within the enterprise. At least one media stream is established with the peer computing device via the network edge appliance based on the alternative network connectivity probing.

WebRTC API redirection with alternative network connectivity steering

A computing system includes a server to execute a first portion of a real-time media application so as to integrate with other desktop applications and other operating system functionality, and to redirect intercepted APIs of the real-time media application based on redirection code injected into the real-time media application so that a second portion of the real-time media application is redirected. A client computing device communicates with the server, and executes the redirected second portion of the real-time media application. The redirected second portion of the real-time media application corresponds to real-time media processing and networking off-loaded from the server to the client computing device.

WebRTC API redirection with interception techniques

A computing system includes a virtual desktop server and a client computing device. The virtual desktop server includes a real-time media application to provide real-time communications (RTC) for peer-to-peer networking, and a native RTC engine to execute a portion of the real-time media application when received by the native RTC engine. An API code redirection module redirects intercepted APIs of the real-time media application so that the portion of the real-time media application is redirected away from the native RTC engine to a client RTC engine in the client computing device. The client RTC engine executes the redirected portion of the real-time media application, and performs network connectivity probing to determine reachability to a peer computing device. A media stream is established with the peer computing device based on the network connectivity probing.

WebRTC API redirection with network connectivity steering

A server includes a real-time media application to provide real-time communications (RTC), and a processor to redirect a portion of the real-time media application based on redirection code injected into the real-time media application, with the injected redirection code defining at least one placeholder to indicate positioning geometry of at least one video stream within an RTC window. The processor determines the positioning geometry of the at least one placeholder within the injected redirection code for a client device to overlay the at least one video stream over the at least one placeholder within a displayed RTC window based on the positioning geometry.

WebRTC API redirection with window monitoring/overlay detection

A computing system includes a virtual desktop server and a client computing device. The virtual desktop server includes a real-time media application to provide real-time communications (RTC) for peer-to-peer networking, and a native RTC engine to execute a portion of the real-time media application when received by the native RTC engine. An API code redirection module redirects intercepted APIs of the real-time media application so that the portion of the real-time media application is redirected away from the native RTC engine to a client RTC engine in the client computing device. The portion of the real-time media application being redirected includes provisioning information directed to a remote media server. A network location service provides provisioning information directed to a nearby media server. The client RTC engine executes the redirected portion of the real-time media application, and selects the remote media server or the nearby media server based on network proximity to the client computing device.

WebRTC API redirection with intelligent network connectivity steering

A computing system includes a virtual desktop server and a client computing device. The virtual desktop server includes a real-time media application to provide real-time communications (RTC) for peer-to-peer networking, and a native RTC engine to execute a portion of the real-time media application when received by the native RTC engine. An API code redirection module redirects intercepted APIs of the real-time media application so that the portion of the real-time media application is redirected away from the native RTC engine to a client RTC engine in the client computing device. The client RTC engine executes the redirected portion of the real-time media application, performs network connectivity probing to determine reachability to a peer computing device, and performs fallback network connectivity probing via the virtual desktop server to determine reachability to the peer computing device.

WebRTC API redirection with network connectivity steering fallback

A computing system includes a first client computing device, and a virtual desktop server. The first client computing device displays a local client surface, and a virtual client surface provided by the virtual desktop server. The virtual desktop server provides a real-time media application to provide real-time communications (RTC), and an API code redirection module to redirect intercepted APIs of the real-time media application intended for a native RTC engine based on redirection code injected into the real-time media application so that the portion of the real-time media application is redirected. The injected redirection code enumerates the local and virtual client surfaces. The first client computing device shares the local and virtual client surfaces with a second client computing device based on the intercepted APIs enumerating the local and virtual client surfaces.

WebRTC API redirection with screen sharing

Aspects described herein are directed to the redirection of web content from a virtual desktop session on a remote computing device to a client computing device for rendering. A virtual delivery agent on the remote computing device may remote a web browser instance to a receiver on a client computing device. The virtual delivery agent may receive, from the remoted browser instance on client computing device, a uniform resource locator (URL). Based on the URL, the virtual delivery agent on the remote computing device may terminate loading of page content associated with the URL on the remote computing device. The virtual delivery agent may instruct the client computing device to render the page content in an overlaid position corresponding to the remoted web browser instance on the receiver of the client computing device.

Redirection of web content

A computing system includes a virtual desktop server and a client computing device. The virtual desktop server includes a real-time media application to provide real-time communications (RTC), a native RTC engine, and an API code redirection module. The API code redirection module redirects original APIs of the real-time media application so that a portion of the real-time media application is to be redirected. The client computing device includes a client RTC API engine reporting to the API code redirection module on capabilities of the client computing device to execute the redirected portion of the real-time media application. The API code redirection module switches to a fallback mode if the client computing device has limited capabilities. In the fallback mode, original APIs are used so that the native RTC engine executes at least part of the portion of the real-time media application.

A computing system includes a video source to provide a video stream and a virtual desktop server. The virtual desktop server includes a media application to provide media streaming that includes the video stream and an overlay on the video stream. An accelerated content redirection module redirects a portion of the media streaming by providing a placeholder to indicate positioning geometry of the video stream within a media window, with the placeholder to include the overlay. Providing the placeholder includes providing a first color for an underlay of the placeholder at a first time, and providing a second color for the underlay of the placeholder at a second time. A geometry tracking module detects the placeholder and determines positioning geometry associated therewith, and determines a color and an alpha blending factor of the overlay based on calculations involving the first and second colors for the underlays of the placeholder.

A computing system includes a virtual desktop server and a client computing device. The virtual desktop server is within an enterprise and includes a real-time media application to provide real-time communications (RTC) for peer-to-peer networking, and a native RTC engine to execute a portion of the real-time media application when received by the native RTC engine. An API code redirection module redirects intercepted APIs of the real-time media application intended for the native RTC engine so that the portion of the real-time media application is redirected away from the native RTC engine to a client RTC engine in the client computing device. The portion of the real-time media application being redirected includes provisioning information directed to a media server. A network edge appliance associated with a branch within the enterprise provides alternative network connectivity options for the peer-to-peer networking.

WEBRTC API redirection with alternative network connectivity steering

A computing system includes at least one video source, a virtual desktop server and a client computing device. The virtual desktop server includes a real-time media application to provide real-time communications (RTC), a native RTC engine, a geometry tracking module, and an API code redirection module to redirect intercepted APIs of the real-time media application intended for the native RTC engine based on redirection code injected into the real-time media application. The injected redirection code defines a placeholder to indicate positioning geometry of a video stream within an RTC window. The geometry tracking module detects the placeholder within the injected redirection code. The client computing device includes a display composition module to receive the video stream and the positioning geometry of the placeholder, and to overlay the video stream over the placeholder within the displayed RTC window based on the positioning geometry.

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Coral Springs, FL, United States of America

James Michael Page