Systems and methods for remotely presenting a multimedia stream

• US 9,191,425 B2
• Filed: 12/08/2010
• Issued: 11/17/2015
• Est. Priority Date: 12/08/2009
• Status: Active Grant

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Momchilov, Georgy, Giebler, Todd, Tabares, Modesto, Summers, Jacob
• Primary Examiner(s): Ibrahim, Mohamed
• Assistant Examiner(s): FIORILLO, JAMES N
• Application Number:
  US12/963,535
• Publication Number:
  US 20110145431A1
• Time in Patent Office: 1,805 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/765 intermediate

Abstract

A proxy streaming module executes on a first computing machine to stream multimedia data from a virtual channel that is established between the first computing machine and a second computing machine. In some instances, the multimedia data is generated by a multimedia device that communicates with the second computing machine. The proxy streaming module forwards the multimedia data to a presentation application that is executing on the first computing machine. A remoting application that executes on the first computing machine then captures the application output generated by the presentation application while the presentation application presents the multimedia data. The remoting application then transmits the application output to the second computing machine which displays the application output in an application output window.

Claims

1. A system for displaying on a local computing device, by an application executing on a remote computing device, raw multimedia data generated by a multimedia device connected to the local computing device, the remote computing device in communication with the local computing device via a virtual channel, the system comprising:

a local computing device;

a multimedia device communicating with the local computing device, the multimedia device generating raw multimedia data;

a remote computing device hosting the execution of a proxy streaming module to receive raw multimedia data passed by the local computing device to the proxy streaming module via a virtual channel and to forward the raw multimedia data to a presentation application executing on the remote computing device;

wherein the presentation application generates formatted multimedia application output from the raw multimedia data and the remoting application intercepts the generated formatted multimedia application output generated from the raw multimedia data prior to the display of the formatted multimedia application output by the remote computing device, encapsulates the intercepted formatted multimedia application output generated from the raw multimedia data in a presentation level protocol, and transmits the formatted multimedia application output generated from the raw multimedia data to the local computing device, wherein the local computing device receives and unencapsulates the encapsulated formatted multimedia application output generated from the raw multimedia data and displays the formatted multimedia application output generated from the raw multimedia data in an application output window of the local computing device.

2. The system of claim 1, further comprising a local remoting application executing on the local computing device transmitting the raw multimedia data to the remote computing device over the virtual channel.

3. The system of claim 2, wherein the local remoting application executing on the local computing device constructs a packet to include the raw multimedia data in a protocol wrapper before transmitting the packet comprising the raw multimedia data to the remote computing device.

4. The system of claim 3, wherein the remoting application executing on the remote computing device deconstructs the packet by extracting the raw multimedia data from the packet before forwarding the raw multimedia data to the presentation application.

5. The system of claim 2, further comprising a streaming module executing on the local computing device streaming the raw multimedia data from a multimedia interface to the remoting application executing on the local computing device.

6. The system of claim 1, further comprising an encoder executing on the local computing device encoding the raw multimedia data before transmitting the raw multimedia data to the remote computing device.

7. The system of claim 6, further comprising a decoder executing on the remote computing device to decode the raw multimedia data before forwarding the raw multimedia data to the presentation application.

8. The system of claim 1, wherein the raw multimedia data is passed to the proxy streaming module responsive to receiving a request from a user of the local computing device to execute the presentation application.

9. The system of claim 1, wherein the presentation application stores the raw multimedia data in a storage repository.

11. The method of claim 1, further comprising transmitting, by a local streaming module executing on the local computing device, the raw multimedia data to the remote computing device via the virtual channel.

12. The method of claim 11, further comprising:

streaming, by a local streaming module executing on the local computing device, the raw multimedia data from a multimedia device interface; and

streaming, by the local streaming module executing on the local computing device, the raw multimedia data to a local remoting application executing on the local computing device.

13. The method of claim 1, further comprising encoding, by an encoder executing on the local computing device, the raw multimedia data before transmitting the raw multimedia data to the remote computing device.

14. The method of claim 13, further comprising decoding, by a decoder executing on the remote computing device, the raw multimedia data before forwarding the raw multimedia data to the presentation application.

15. The method of claim 1, further comprising constructing a packet, by a local remoting application on the local computing device, to include the raw multimedia data in a protocol wrapper before transmitting the packet comprising the raw multimedia data to the remote computing device.

16. The method of claim 15, further comprising deconstructing the packet, by the remoting application executing on the remote computing device, to extract the raw multimedia data from the packet before forwarding the raw multimedia data to the presentation application.

17. The method of claim 1, wherein the raw multimedia data is passed to the proxy streaming module responsive to receiving a request to execute the presentation application from a user of the local computing device.

18. The method of claim 1, further comprising encrypting, by an encoder executing on the local computing device, the raw multimedia data before transmitting the raw multimedia data to the remote computing device.

19. The method of claim 1, further comprising decrypting, by a decoder executing on the remote computing device, the raw multimedia data received from the local computing device.

20. The method of claim 1, further comprising storing, by the presentation application, the raw multimedia data in a storage repository.

21. The method of claim 1, wherein intercepting the formatted multimedia application output comprises:

intercepting a call; and

extracting the formatted application data from the call.

10. A method for displaying on a local computing device, by an application executing on a remote computing device, raw multimedia data generated by a multimedia device connected to the local computing device, the remote computer device in communication with the local computing device via a virtual channel, the method comprising:

receiving, by a proxy streaming module executing on a remote computing device, raw multimedia data via a virtual channel, the raw multimedia data generated by a multimedia device associated with the local computing device and passed by the local computing device to the proxy streaming module;

forwarding, by the proxy streaming module, the raw multimedia data to a presentation application executing on the remote computing device, the presentation application generating formatted multimedia application output from the raw multimedia data;

intercepting, by a remoting application executing on the remote computing device, the formatted multimedia application output generated from the raw multimedia data prior to the display of the formatted multimedia application output by the remote computing device;

encapsulating, by the remoting application executing on the remote computing device, the intercepted formatted multimedia application output generated from the raw multimedia data in a presentation level protocol; and

transmitting, via the virtual channel, by the remoting application executing on the remote computing device, the encapsulated formatted multimedia application output generated from the raw multimedia data to the local computing device, wherein the local device receives and unencapsulates the encapsulated formatted multimedia application output generated from the raw multimedia data and displays the formatted multimedia application output generated from the raw multimedia data in an application output window on the local computing device.

22. A method for displaying on a client device, by an application executing on a remote server, raw multimedia data generated by a multimedia device connected to the client device, the method comprising:

transforming, by one or more filters of the client device, raw multimedia data to conform to a protocol of a virtual channel established between the client device and a remote server;

forwarding, by a streaming module executing on the client device, the raw multimedia data to the remote server via the virtual channel;

receiving, by a proxy streaming module executing on the remote server, the raw multimedia data received from the client device via the virtual channel;

forwarding, by the proxy streaming module, the raw multimedia data to a presentation application executing on the remote server;

intercepting, by a remoting application executing on the remote server, formatted application output generated from the raw multimedia data by the presentation application prior to the display of the formatted application output;

encapsulating, by the remoting application executing on the remote computing device, the intercepted formatted multimedia application output generated from the raw multimedia data in a presentation level protocol; and

transmitting, via the virtual channel, by the remoting application executing on the remote server, the encapsulated formatted application output generated from the raw multimedia data to the local client device;

receiving, by the client device, the encapsulated formatted application output generated from the raw multimedia data;

unencapsulating, by the client device, the encapsulated formatted application output generated from the raw multimedia data; and

displaying, by the client device, the formatted application output in an application output window.