JP2013532441A5

JP2013532441A5 -

Info

Publication number: JP2013532441A5
Application number: JP2013515413A
Authority: JP
Filing date: 2011-06-13
Publication date: 2014-07-24

Claims

A method of creating a component file from a media entity containing multiple layers,
Extracting metadata for each layer from the media entity;
Extracting from the media entity media data corresponding to the extracted metadata of each layer of the media entity;
Associating the extracted media data with the extracted metadata to enable creation of component files including the extracted metadata and the extracted media data in each of the layers. , Said method.

Extracting additional media data related to the extracted media data of each layer from the media entity to each layer;
The method of claim 1, further comprising associating the extracted media data and the additional media data for each layer for creation of a corresponding component file.

Identifying additional media data references related to the extracted media data for each layer;
The method of claim 1, further comprising associating the reference with the extracted metadata and the extracted media data for each layer to create a corresponding component file.

Embedding the reference in the extracted metadata of each layer;
The method of claim 3 , further comprising adding the reference indication to the extracted media data.

The method of claim 4 , wherein the reference is placed at the beginning of the component file for each layer.

The method of claim 4 , wherein the reference is entered in a media reference box and the indicator is entered in an extractor.

A file encapsulation device that creates a component file from a media entity containing multiple layers,
An extractor that extracts metadata of each layer from the media entity and extracts media data corresponding to the extracted metadata of each layer of the media entity from the media entity;
A correlator that associates the extracted media data with the extracted metadata and that enables creation of component files including the extracted metadata and the extracted media data in each of the layers. The file encapsulation device.

The extractor further extracts, for each layer, additional media data related to the extracted media data of each layer from the media entity;
8. The file encapsulation apparatus according to claim 7 , wherein the correlator further associates the extracted media data and the additional media data of each layer to create a corresponding component file.

A reference identifier for identifying a reference of additional media data related to the extracted media data of each layer from the media entity, wherein the correlator extracts the reference from the extracted meta data of each layer; 8. The file encapsulation device according to claim 7 , wherein a corresponding component file is created in association with data and the extracted media data.

The file encapsulation apparatus according to claim 9 , wherein the correlator further embeds the reference in the extracted metadata of each layer, and adds the index of the reference to the extracted media data.

A method of reading a component file,
Parsing the component file to obtain metadata, media data and references;
According to the reference, when the media data of the component file is related to media data of another component file, the related media Retrieving the data.

The method of claim 11 , wherein the media data of the component file is related to media data of other component files according to encoding dependencies.

The method of claim 11 , further comprising parsing the metadata to obtain the reference.

Parsing the media data to obtain a reference index embedded therein;
14. The method of claim 13 , further comprising: obtaining a corresponding reference according to the reference index.

Said removing step comprises:
14. The method of claim 13 , comprising retrieving the other component file in parallel according to the reference.

Said removing step comprises:
Checking the local file storage;
16. The method of claim 15 , further comprising retrieving the other component file from the local storage device if the local file storage device includes the other component file.

A parser that parses component files to obtain metadata, media data, and references;
A retriever for retrieving media data related to the media data from other component files according to the reference;
A processor for processing media data retrieved from the metadata, the media data, and the other component files.

18. The file reader of claim 17 , wherein the media data of the component file is related to media data of other component files in terms of encoding dependency.

The file reader of claim 17 , wherein the processor comprises a video decoder.

The file reader of claim 17 , wherein the parser further comprises means for obtaining the reference.

21. The file reader of claim 20 , wherein the parser further parses the media data to obtain a reference index embedded therein and obtains a corresponding reference according to the reference index.

21. The file reader of claim 20 , wherein the retriever further retrieves the other component files in parallel according to the obtained reference.

The retriever further checks a local file storage device, and if the local file storage device includes the other component file, retrieves the other component file from the local storage device. Item 23. The file reader according to Item 22 .