WebRTC API redirection with fallbacks

A method for operating a computing system comprising a virtual desktop server and a client computing device comprising a client real-time communications (RTC) application programming interface (API) API engine, with the virtual desktop server comprising an application framework and an API code redirection module, and with the application framework comprising a real-time media application and a native RTC engine, the method comprising:

• providing real-time communications (RTC) based on operation of the real-time media application, with a portion of the real-time media application to be executed by the native RTC engine when received by the native RTC engine;
• redirecting by the API code redirection module original 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;
• reporting by the client RTC API engine to the API code redirection module through a virtual channel on capabilities of the client computing device to execute the redirected portion of the real-time media application;
• and
• operating the API code redirection module to switch to a fallback mode if the client computing device has limited capabilities, where in the fallback mode at least part of the original APIs are used so that the native RTC engine executes at least part of the portion of the real-time media application.

A non-transitory computer readable medium for operating a virtual desktop server within a computing system comprising a client computing device comprising a client real-time communications (RTC) application programming interface (API) engine, with the virtual desktop server comprising an application framework and an API code redirection module, with the application framework comprising a real-time media application and a native RTC engine, and with the non-transitory computer readable medium having a plurality of computer executable instructions for causing the virtual desktop server to perform steps comprising:

• providing real-time communications (RTC) based on operation of the real-time media application, with a portion of the real-time media application to be executed by the native RTC engine when received by the native RTC engine;
• redirecting by the API code redirection module original 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;
• receiving, by the API code redirection module from the client RTC API engine through a virtual channel, capabilities of the client computing device to execute the redirected portion of the real-time media application;
• and
• operating the API code redirection module to switch to a fallback mode if the client computing device has limited capabilities, where in the fallback mode at least part of the original APIs are used so that the native RTC engine executes at least part of the portion of the real-time media application.