MULTIMEDIA-DATA-PROCESSING METHOD

• US 20120299929A1
• Filed: 12/24/2010
• Published: 11/29/2012
• Est. Priority Date: 12/28/2009
• Status: Active Grant

• Current Assignee: Korea Electronics Technology Institute (Government of South Korea)
• Original Assignee: Korea Electronics Technology Institute (Government of South Korea)
• Inventors: Choi, Byeong Ho, Kim, Yong Hwan, Shin, Hwa Seon, Cho, Choong Sang, Park, Min Seok
• Granted Patent: US 9,570,110 B2
• Time in Patent Office: Days
• US Class Current: 345/440
• CPC Class Codes: G11B 27/10 Indexing; Addressing; Timing or synchronising; Measuring tape travel

Abstract

The present invention relates to a multimedia-data-processing method which enables a media graph to always be constructed in a “connection without negotiation” manner, on the basis of an already known media graph construction, and thus provides a media framework in which procedures for connecting components are minimized, thereby improving the performance of a system and satisfying the requests of an OS platform builder and a media application developer. The multimedia-data-processing method of the present invention is performed by a multimedia framework, and comprises: (a) a step of receiving component information required for the construction of the media graph and component connection information from a media application; and (b) a step of ensuring that the media graph is constructed by the content received in step (a), and that the media graph waits for a rendering command, thereby eliminating the necessity of permitting the media application to check the construction of the media graph.

Claims

1. A method of processing multimedia data by a multimedia framework, which allows a media application to omit checking of a construction of a media graph, the method comprising the steps of:

(a) receiving information on a component and connection information on the component required for construction of a media graph from the media application; and

(b) ensuring that the media graph is constructed according to contents received in the step of (a) and that the media graph waits for a rendering command.

2. The method as claimed in claim 1, wherein in the step of (a), the information on the component and the connection information on the component are directly received.

3. The method as claimed in claim 1, wherein in the step of (a), the information on the component and the connection information on the component are received through preset file information containing the information on the component and the connection information on the component.

4. The method as claimed in claim 1, wherein the component includes a connection denial capability component, which is capable of denying a connection and a connection denial incapability component, which is incapable of denying a connection, and the media framework notifies the connection denial incapability component of only information on a component to be connected in a back side, but intervenes in a connection between a front component and a back component for the connection denial capability component.

5. The method as claimed in claim 4, wherein when the connection denial incapability component performs the rendering, the connection denial incapability component identifies data received through an input port and outputs the data through an output port after processing the data when the received data is processible data, but does not receive the data and makes the data flow when the received data is not processible data.

6. The method as claimed in claim 5, wherein the flown data is transferred to the multimedia framework or another component designated by the multimedia framework.

7. The method as claimed in claim 6, wherein when the multimedia framework receives the flown data, the multimedia framework notifies the media application of the fact that the multimedia framework receives the flown data.

8. The method as claimed in claim 1, wherein one or more components included in the media graph are allowed to be changed or replaced during the performance of the rendering.

9. The method as claimed in claim 1, wherein the component includes a connection denial incapability component, and the connection denial incapability component pre-stores alignment unit information on data processible by the connection denial incapability component, and compares the pre-stored alignment unit information with alignment unit information included in a header of the input data, and receives the data when the pre-stored alignment unit information corresponds to the alignment unit information included in the header of the input data, but denies the reception of the data and makes the data flow when the pre-stored alignment unit information does not correspond to the alignment unit information included in the header of the input data.

10. The method as claimed in claim 9, wherein the connection denial incapability component outputs the data by adding alignment unit information on the corresponding data to a header of the data processed by itself.

11. The method as claimed in claim 9, wherein the connection denial incapability component outputs the data by adding type information and alignment unit information on the corresponding data to a header of the data, pre-stores the type information and the alignment unit information on the data processible by itself, and receives the data when all of the type information and the alignment unit information included in the header of the input data correspond to the pre-stored type information and the pre-stored alignment unit information, but denies the reception of the data and makes the data flow when any one of the type information and the alignment unit information included in the header of the input data does not correspond to the pre-stored type information and alignment unit information.

12. The method as claimed in claim 9, wherein the flown data is transferred to the multimedia framework or another component designated by the multimedia framework.

13. The method as claimed in claim 12, wherein when the multimedia framework receives the flown data, the multimedia framework notifies the media application of the fact that the multimedia framework receives the flown data.

14. The method as claimed in claim 9, wherein one or more components included in the media graph are allowed to be changed or replaced during the performance of the rendering.

15. A computer readable recording medium including a program executing the method of one as claimed in claim 1.