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US 8,275,814 B2Granted
Method and apparatus for encoding/decoding signal
AssigneeLG Electronics Inc.
InventorsTae Hyeon Kim, Hyouk Jean Cha
Life of this patent
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Abstract
The disclosed embodiments relate to a multimedia data encoding/decoding method and apparatus. In some aspects, an encoding method includes generating a file type area having information on a file format; generating a data area comprising a plurality of media data areas; and generating a media information area comprising a plurality of track areas corresponding to the plurality of media data areas, respectively. According to one aspect, the multimedia data encoding/decoding method and apparatus can construct a slide show using only a small amount of multimedia data. Thus, a time taken to process and transmit the multimedia data can be reduced.
Claims23
A decoding method implemented by a processor, comprising:
- receiving multimedia data which includes a file type area having file format information, a data area including media data, and a media information area including a slide show area and an audio track area corresponding to image data and audio data in the data area, respectively, the slide show area including a media area and a track meta area, the media area of the slide show area including decoding time information, position information, and size information on a plurality of image data, each decoding time information, position information, and size information in the media area of the slide show area being allocated for each image data in the data area;
- parsing the multimedia data, the media information area of the multimedia data being parsed first;
- extracting timing information related to the decoding time information from the media area of the slide show area of the media information area;
- extracting the media data to be reproduced depending on the extracted timing information;
- and
- reproducing the extracted media data using the extracted timing information,
- wherein media data included in the data area is synchronized on a single timeline,
- wherein images used in the slide show presentation are arranged in a single track,
- wherein each track meta area of the slide show area and the audio track area includes meta information on the image data and the audio data, respectively,
- wherein the track meta area of the slide show area includes a collection level descriptive meta data, and the collection level descriptive meta data includes title information of a group of a plurality of image data in the data area,
- wherein each track meta area of the slide show area and the audio track area includes XML format data on the meta information.
8 more elements
An encoding method implemented by a processor, comprising:
- generating a file type area having file format information;
- generating a media information area which comprises a plurality of track areas respectively corresponding to media data;
- generating a data area including the media data;
- and
- constructing the generated file type area, media information area, and data area as one file, and outputting encoded multimedia data;
- wherein the media data included in the data area is synchronized on a single timeline, and
- wherein a slide show area of the plurality of track areas includes a media area and a track meta area,
- wherein the media area of the slide show area includes decoding time information, position information, and size information on a plurality of image data, each decoding time information, position information, and size information in the media area of the slide show area being allocated for each image data in the data area,
- wherein the multimedia data includes the file type area, data area, and media information area,
- wherein images used in a slide show presentation are arranged in a single track,
- wherein each track meta area of the slide show area and the audio track area includes meta information on the image data and the audio data, respectively,
- wherein the track meta area of the slide show area includes a collection level descriptive meta data, and the collection level descriptive meta data includes title information of a group of a plurality of image data in the data area
- wherein each track meta area of the slide show area and the audio track area includes XML format data on the meta information.
10 more elements
A decoding apparatus comprising:
- a processor coupled to a memory;
- a data input unit, controlled by the processor, which receives multimedia data that includes a file type area having file format information, a data area including media data, and a media information area including a plurality of track areas respectively corresponding to the media data, a slide show area of the plurality of track areas including a media area and a track meta area, the media area of the slide show area including decoding time information, position information, and size information on a plurality of image data, each decoding time information, position information, and size information in the media area of the slide show area being allocated for each image data;
- and
- a timing information extractor, controlled by the processor, which extracts timing information related to the decoding time information from the media area of the slide show area of the media information area;
- a media data extractor, controlled by the processor, which extracts the media data to be reproduced depending on the extracted timing information;
- and
- a reproducing unit, controlled by the processor, which reproduces the extracted media data using the extracted timing information,
- wherein media data included in the data area is synchronized on a single timeline,
- wherein images used in the slide show presentation are arranged in a single track,
- wherein each track meta area of the slide show area and the audio track area includes meta information on the image data and the audio data, respectively,
- wherein the track meta area of the slide show area includes a collection level descriptive meta data, and the collection level descriptive meta data includes title information of a group of a plurality of image data in the data area,
- wherein each track meta area of the slide show area and the audio track area includes XML format data on the meta information.
9 more elements
An encoding apparatus comprising:
- a processor coupled to a memory;
- a file type area generator, controlled by the processor, which generates a file type area having file format information;
- a data area generator, controlled by the processor, which generates a data area including media data;
- a media information area generator, controlled by the processor, which includes a plurality of track areas respectively corresponding to the media data, a slide show area of the plurality of track areas including a media area and a track meta area, the media area of the slide show area including decoding time information, position information, and size information on a plurality of image data, each decoding time information, position information, and size information in the media area of the slide show area being allocated for each image data;
- and
- an output unit, controlled by the processor, which constructs the generated file type area, media information area, and data area as one file, and outputs encoded multimedia data,
- wherein the media data included in the data area is synchronized on a single timeline,
- wherein images used in the slide show presentation are arranged in a single track,
- wherein each track meta area of the slide show area and the audio track area includes meta information on the image data and the audio data, respectively,
- wherein the track meta area of the slide show area includes a collection level descriptive meta data, and the collection level descriptive meta data includes title information of a group of a plurality of image data in the data area,
- wherein each track meta area of the slide show area and the audio track area includes XML format data on the meta information.
8 more elements
Dependencies are inferred from the claim text.