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Media data display device, media data display method, and media data display program

A media data and display device technology, applied in the field of media data display devices, can solve problems such as increased power consumption, difficulty in implementing multiple display methods, and increased CPU load, so as to reduce processing load, suppress power consumption, The effect of prolonging the use time

Inactive Publication Date: 2006-08-23
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the display is uniform and it is difficult to realize various display methods
In addition, in the media display device 10 of the prior art, when displaying video, it is necessary to perform calibration several to tens of times per second, which increases the load on the CPU and increases power consumption. Especially in portable terminals that require low power consumption and low processing

Method used

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  • Media data display device, media data display method, and media data display program
  • Media data display device, media data display method, and media data display program
  • Media data display device, media data display method, and media data display program

Examples

Experimental program
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no. 1 Embodiment approach

[0092] Next, a first embodiment of the present invention will be described using FIGS. 1 to 3 .

[0093] FIG. 1 is a block diagram illustrating the configuration of a media data display device 20 as a first embodiment of the present invention. The media data display device 20 is, for example: a device that downloads an MP4 file (refer to FIGS. 29 to 33 . The following is the same in the "embodiment of the invention") stored in a server by utilizing HTTP, and the playback is stored in a recording medium such as an SD card. The device of the MP4 file is installed in a TV, a personal computer (PC), a mobile phone or other devices that can display image signals.

[0094] In the media data display device 10 of the prior art, the video that the MP4 file has has nothing to do with the image size (Wv, Hv) stored in "stsd", and is scaled to become the display area size (Wp, Hp) stored in "tkhd". displayed after. On the other hand, the media data display device 20 does not include the...

no. 2 Embodiment approach

[0132] Next, a second embodiment of the present invention will be described using FIGS. 4 to 13 .

[0133] FIG. 4 is a block diagram illustrating the configuration of a media data display device 35 as a second embodiment of the present invention. The media data display device 35 is, for example: a device that utilizes HTTP to download an MP4 file stored in a server and a device that reproduces an MP4 file stored in a recording medium such as an SD card, and is installed in a television, a personal computer (PC), a mobile phone, etc. Or other devices that can display image signals.

[0134] The media data display device 35, like the media data display device 20 described with reference to FIG. 1, does not include the scaling unit 18 (see FIG. 34), and displays the video included in the MP4 file without scaling.

[0135] Here, the MP4 file acquired by the media data display device 35 stores in "stbl" a Sample Display Center Box (hereinafter referred to as "stdc") designating an...

no. 3 Embodiment approach

[0197] Next, a third embodiment of the present invention will be described using FIGS. 14 to 22 .

[0198] FIG. 14 is a block diagram illustrating the configuration of a media data display device 85 as a third embodiment of the present invention. The media data display device 85 is, for example: a device that utilizes HTTP to download an MP4 file stored in a server and a device that reproduces an MP4 file stored in a recording medium such as an SD card, and is installed in a television, a personal computer (PC), a mobile phone, etc. Or other devices that can display image signals.

[0199]The media data display device 85 determines whether to scale the frame data of the video based on the information acquired from MP4.

[0200] Here, the MP4 file acquired by the media data display device 85 has "stdc" described in [Second Embodiment] using FIG. 5 . Furthermore, the MP4 file acquired by the media data display device 85 has, in "stdc", a SampleScale Boc (hereinafter referred t...

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Abstract

The present invention provides a media data display device, a media data display method and a media data display program for displaying, on a display screen, multimedia data made up of a plurality of media including moving images in a variety of display methods. The media data display device (85) is a media data display device for displaying, on a display screen, multimedia data made up of a plurality of media including moving images, and is provided with a scaling determining portion (87), a scaling portion (89) and a display portion (19). The scaling determining portion (87) determines whether to display the moving images after changing their image size or to display the moving images without changing their image size. The scaling portion (89) and the display portion (19) are means for displaying the multimedia data, and display the moving images after switching whether to perform scaling or not based on a determination result from the scaling determining portion (87).

Description

technical field [0001] The present invention relates to a media data display device, a media data display method, and a media data display program, and in particular to a media data display device, a media data display method, and a media data display device for displaying multimedia data composed of multiple media including moving images on a display screen. Media data display program. Background technique [0002] In recent years, people have been developing technologies for transmitting video, audio or text data through communication networks such as the Internet. For example, the digital video, audio or text data is transmitted in packets according to communication protocols such as RTP (Reel time Transport Protocol) and HTTP / TCP (Hyper Text Transport Protocol, Transmission Control Protocol). Conventional technology related to the distribution (transmission) of video, audio, or text data using MPEG-4 as a video and audio coding method and MP4 (ISO / IEC 14496-1:2001) file...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/36G09G5/14G06F3/14H04N5/66
CPCG09G5/36G09G2330/021G09G2340/0407G06T3/40G09G3/20G09G5/00
Inventor 远间正真松井义德
Owner PANASONIC CORP