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Method for recording medium data

A data and media technology, applied in the field of recording media data, can solve problems such as large coded video bit streams, small coded video bit streams, etc.

Inactive Publication Date: 2008-10-08
BENQ CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although high-definition mode has the best image quality, its high bit rate produces a large encoded image bitstream, thereby reducing the amount of other image bitstreams that can be recorded on storage media (such as magnetic media or DVDs). On the other hand, although the ultra-long playback mode has the worst image quality, its low bit rate produces a smaller encoded image bitstream, thus increasing the number of other image bitstreams that can be recorded on the storage medium. quantity

Method used

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Embodiment Construction

[0025] see figure 1 , figure 1 It is a schematic functional block diagram of the video recording system 10 capable of recording media data according to the present invention. Here, media data generally refers to objects carrying information that need to be presented through media playback. Media data can be text, video (graphics, images, etc.), audio ( Music, language, sound effect) and other materials; and the media for playing media data can be projectors, slide projectors, video recorders, tape recorders, TV, radio, computer networks and other playback media. The video recording system 10 can be a digital video recorder (DVR) or a personal video recorder (Personal Video Recorder, PVR). The video recording system 10 includes a media data input terminal 12 for receiving media data, such as receiving wired or wireless TV broadcast signals, etc., a coder / decoder 14 (codec), coupled to the media data input terminal 12, for the multimedia The data is encoded or decoded, for exa...

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Abstract

The invention discloses a method for recording media data, which includes the following steps: (a) recording a first part of the media data to a storage media with a first code bit rate in the first time interval; (b) judging whether the first time interval is larger than a specified time; (c) determining whether to transcode the first code bit rate of the first part of the media data stored in the storage media in the step (a) to a second code bit rate or not according to the judging result of the step (b). The method for recording media data of the invention can achieve effective storage media management in a limited storage media space through management recording mode according to requirements of users, which also provides a humanized recording management mechanism.

Description

technical field [0001] The present invention provides a method for recording media data, especially a method for adjusting the encoding bit rate of the recorded media data or the media data to be recorded according to the recording time length. Background technique [0002] In recent years, video recording devices, such as video cassette recorders (Video Cassette Recorder, VCR) and digital versatile disc (Digital Versatile Disc, DVD) video recorders, etc., have been widely used in recording movies and video programs. These recording and playback devices can Read data from the storage medium to project static pictures or dynamic pictures on the screen, and play corresponding audio data; in addition, multiple dynamic pictures and their related audio data can also be recorded on the storage medium. General hard disk video recorders, such as Digital Video Recorder (DVR) or Personal Video Recorder (PVR), have the function of so-called time shift (Time Shift). The function of so-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/926H04N5/92
Inventor 李昌鸿
Owner BENQ CORP
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