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Multimedia reproduction apparatus

A technology of reproduction device and multimedia, applied in TV, two-way working system, components of color TV, etc., can solve the problems of complex circuit structure and achieve the effect of suppressing overflow

Inactive Publication Date: 2006-11-15
PANASONIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the difference of PTS information needs to be calculated, the circuit structure becomes complicated

Method used

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  • Multimedia reproduction apparatus
  • Multimedia reproduction apparatus

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no. 1 Embodiment

[0021] figure 1 The configuration of the multimedia playback device according to the first embodiment is shown. The multimedia reproduction device involved in this embodiment includes: an input processing unit 10, a PTS buffer 11, a video data buffer 12, an audio data buffer 13, a video decoding unit 14, an audio decoding unit 15 and an AV synchronous processing unit 16.

[0022] The input processing unit 10 classifies input coded data into video data and audio data, and outputs them. Furthermore, PTS information corresponding to video data and audio data is extracted from the coded data.

[0023] The PTS buffer 11 stores the PTS information output from the input processing unit 10 .

[0024] The video data buffer 12 stores the video data output from the input processing unit 10 .

[0025] The audio data buffer 13 stores audio data output from the input processing unit 10 .

[0026] The AV synchronous processing unit 16 synchronously reproduces the decoded data by the vid...

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Abstract

A mutlimedia reproduction apparatus comprises an input processor and a storing section. The input processor receives encoded data, successively separates video data and audio data from the encoded data, extracts time information related to the separated data, thins the extracted time information, and stores the thinned time information into the storing section.

Description

technical field [0001] The invention relates to a multimedia reproducing device, in particular to synchronous reproduction of video data and audio data. Background technique [0002] Conventional multimedia playback devices separate video data, audio data, and PTS (Presentation Time Stamp) information corresponding to these data from input coded data. Separated video data and audio data are sorted and stored in each buffer. In addition, PTS information is also stored in a dedicated buffer. Simultaneous data reproduction in a multimedia reproduction device is performed by decoding video data and audio data separately, and performing them based on PTS information corresponding to them (for example, refer to JP-A-2001-169249). [0003] When video data and audio data to be reproduced simultaneously are multiplexed at separate positions, it is necessary to expand the buffer size of the video data and audio data. Along with this, it is also necessary to expand the buffer for st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/93H04N7/173H04N21/435H04N21/44
CPCH04N21/2368H04N21/4305H04N21/4341H04N21/43072
Inventor 直田清吾
Owner PANASONIC CORP
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