MULTIMEDIA PRE-PROCESSING APPARATUS AND METHOD FOR VIRTUAL MACHINE IN MULTICORE DEVICE

• US 20120185869A1
• Filed: 12/06/2011
• Published: 07/19/2012
• Est. Priority Date: 01/18/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd., Seoul National University R&DB Foundation (Seoul National University)
• Original Assignee: Samsung Electronics Co. Ltd., Seoul National University R&DB Foundation (Seoul National University)
• Inventors: Jung, Dong-Heon, Moon, Soo-Mook, Sihn, Kue-Hwan
• Granted Patent: US 9,372,720 B2
• Time in Patent Office: Days
• US Class Current: 718/105
• CPC Class Codes: G06F 11/3404 for parallel or distributed programming
• CPC Class Codes: G06F 16/40 of multimedia data, e.g. slideshows comprising image and additional audio data retrieval of still image data G06F16/50; retrieval of audio data G06F16/60; retrieval of video data G06F16/70
• CPC Class Codes: G06F 9/3818 Decoding for concurrent execution
• CPC Class Codes: G06F 9/3822 Parallel decoding, e.g. parallel decode units
• CPC Class Codes: G06F 9/4843 by program, e.g. task dispatcher, supervisor, operating system
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/382 Preprocessing; Feature extraction

Abstract

A multimedia data preprocessing apparatus for a virtual machine is provided. The multimedia data preprocessing apparatus includes a detection unit configured to detect multimedia data included in an application, a generation unit configured to generate a thread for processing the detected multimedia data, and an allocation unit configured to allocate the generated thread to an idle core.

Claims

1. A multimedia data preprocessing apparatus for a virtual machine in multicore device, the multimedia data preprocessing apparatus comprising:

a detection unit configured to detect multimedia data included in an application;

a generation unit configured to generate a thread for processing the detected multimedia data; and

an allocation unit configured to allocate the generated thread to an idle core.

2. The multimedia data preprocessing apparatus of claim 1, wherein the detection unit identifies multimedia data attributes included in code or metadata of the application and detects the multimedia data included in the application based on the identified multimedia data attributes.

3. The multimedia data preprocessing apparatus of claim 1, wherein the generated thread is decodes the detected multimedia data into code that is capable of being processed by the application.

4. The multimedia data preprocessing apparatus of claim 1, wherein the detection unit identifies code or metadata of the application and detects a multimedia data attribute from the identified application code or metadata.

5. The multimedia data preprocessing apparatus of claim 4, wherein the generated thread loads multimedia data corresponding to the detected multimedia data attribute and decodes the loaded multimedia data into code that is capable of being processed by the application.

6. The multimedia data preprocessing apparatus of claim 1, wherein the allocation unit allocates the generated thread to an idle core other than a core executing the application.

7. The multimedia data preprocessing apparatus of claim 1, wherein the allocation unit allocates the generated thread to a core executing the application in response to the core becoming idle.

8. The multimedia data preprocessing apparatus of claim 1, further comprising a storage unit configured to store processed multimedia data obtained by processing the detected multimedia data based on the generated thread.

9. The multimedia data preprocessing apparatus of claim 8, wherein the storage unit stores the processed multimedia data in a data structure that is capable of being used in the is application.

10. The multimedia data preprocessing apparatus of claim 1, wherein the detected multimedia data comprises video data, audio data, image data, text data, or any combination thereof.

11. The multimedia data preprocessing apparatus of claim 1, wherein in response to an execution of the application being complete, the allocation unit removes the thread allocated to the idle core.

12. The multimedia data preprocessing apparatus of claim 8, wherein in response to an execution of the application being complete, the storage unit deletes the multimedia data stored therein.

20. The multimedia data preprocessing apparatus of claim 1, further comprising a plurality of cores.

13. A multimedia data preprocessing method for a virtual machine in multicore device, the multimedia data preprocessing method comprising:

detecting multimedia data included in an application;

generating a thread for processing the detected multimedia data; and

allocating the generated thread to an idle core.

14. The multimedia data preprocessing method of claim 13, further comprising determining whether the detected multimedia data is decoded.

15. The multimedia data preprocessing method of claim 13, wherein the detecting the is multimedia data comprises detecting a multimedia data attribute in code or metadata of application.

16. The multimedia data preprocessing method of claim 13, wherein the generated thread loads multimedia data corresponding to the detected multimedia data attribute and decodes the loaded multimedia data into code that is capable of being processed by the application.

17. The multimedia data processing method of claim 13, further comprising storing processed multimedia data obtained by processing the detected multimedia data using the generated thread.

18. The multimedia data preprocessing method of claim 13, wherein the detected multimedia data comprises video data, audio data, image data, text data, or any combination thereof.

19. A multimedia data preprocessing method for a virtual machine in multicore device, the multimedia data preprocessing method comprising:

receiving a call for multimedia data from an application;

determining whether the multimedia data is decoded; and

in a case in which the multimedia data is stored, returning the stored multimedia data to the application.

21. A multimedia data preprocessing apparatus for a virtual machine in a multicore device, comprising:

a generation unit configured to generate a thread for processing multimedia data;

an allocation unit configured to allocate the generated thread to an idle core; and

a detection unit configured to detect multimedia data included in an application from the generated thread.