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Data processing device and data processing method

A data processing device and data processing technology, applied in data recording, digital recording/reproducing, digital signal formatting, etc., can solve problems such as difficulty in stream attribute information

Inactive Publication Date: 2006-09-13
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when describing a seamless playlist for ensuring, for example, seamless playback by this feature, it is difficult to describe stream attribute information for each playback section

Method used

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  • Data processing device and data processing method
  • Data processing device and data processing method
  • Data processing device and data processing method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0100] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0101] Fig. 10 shows the connection relation of a portable video recorder 10-1, a camcorder 10-2 and a PC 10-3 for data processing according to the present invention.

[0102] The portable video recorder 10-1 receives a broadcast program using an attached antenna, and compresses the broadcast program by moving images to generate an MP4 stream. The all-in-one camera 10-2 records images, simultaneously records the voice attached to the images, and generates MP4 streams. In the MP4 stream, image / audio data is encoded by a predetermined compression encoding method, and is recorded according to the data structure described in the manual. The portable video recorder 10-1 and the camcorder 10-2 record the generated MP4 stream on a recording medium 131 such as DVD-RAM, or output it through a digital interface such as IEEE1394 or USB. Moreover, since the portable video recorde...

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Abstract

A data processor records an audio frame corresponding to an audio gap interval at a connection point, as well as the audio playback control information, in a post recording area. The audio is reproduced so as to include the audio frame at the connection point. The audio is also reproduced while being faded in and faded out in accordance with the audio playback control information. As a result, when an MPEG program stream stored on a disk is played back by making a play list with the connection point re-encoded, seamless playback is guaranteed without discontinuing the audio at all.

Description

technical field [0001] The present invention relates to a data processing device and method for recording stream data of a moving image stream on a recording medium such as an optical disc. Background technique [0002] Various data streams in which image data is compressed and encoded at a low bit rate are being standardized. As an example of such a data stream, an MPEG2 system standard (ISO / IEC 13818-1) system stream is known. System streams include program stream (PS), transport stream (TS) and PES stream. [0003] In recent years, there has been a new movement for specifying the data stream of the MPEG4 system standard (ISO / IEC 14496-1). In the format of the MPEG4 system standard, an MPEG2 video stream or a video stream including the MPEG4 video stream and various audio streams are multiplexed to generate data as a moving picture stream. Further, the supplementary information is specified in the format of the MPEG4 system standard. The subsidiary information and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/91H04N5/92H04N7/24G11B20/10G11B20/12G11B27/00G11B27/034G11B27/036H04N5/85H04N9/804
CPCH04N5/85G11B2220/2575G11B2220/213G11B2220/218G11B2220/2562H04N9/8042G11B20/10009G11B27/036G11B2220/216G11B2220/2541G11B27/034
Inventor 伊藤正纪冈内理中村正
Owner PANASONIC CORP