Method for generating video frequency target unit in HD-DVD system
A technology for generating video and target units, which is applied to the components of TV systems, components of color TVs, and the use of detectable carrier information, etc., which can solve the difficulties affecting the playback effect, reading, decoding and synchronization of HD-DVD discs. and other problems to achieve the effect of reducing technical difficulty and improving backward compatibility
Inactive Publication Date: 2004-07-14
KONINK PHILIPS ELECTRONICS NV
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According to this criterion, it is reasonable to store SD data and related HD-enh data on the disc, otherwise, in the process of playing HD-DVD discs, it will give future HD-DVD video players a problem with the SD and related data in the disc. The reading, decoding and synchronization of HD-enh video data brings difficulties, and also affects the playback effect of HD-DVD discs in existing DVD players
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[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0031] A kind of method for generating video object unit (VOBU) in HD-DVD system of the present invention comprises the following steps:
[0032] a, HD original video data stream is separated to obtain HD-enh video data stream and SD video data stream;
[0033] b. Pack various data streams including HD-enh video data streams, SD video data streams, and audio data streams into HD-enh video data packets (V_PCK_HD), video data packets (V_PCK), and audio data packets (A_PCK) Form a series of VOBU.
[0034] FIG. 1 shows the device for generating a video object unit (VOBU) in an HD-DVD system according to the present invention. Take an HD original video data stream with a resolution of 1920*1080 as an example.
[0035]First, as shown in FIG. 1 , the separation device 110 processes the input HD original video data stream and separates it into HD-enh video d...
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This invention provides a method for generating video object units (VDBO) in HD-DVD system, storing HD-enh data and SD data in form of data packets interlacedly based on VOBU to shorten the storage distance to the utmost between V-PCK video data packet and cohenrent V-PCK-HD-enh data video data packet, so as to increase fetching, decoding and synchronizing SD and HD-enh data efficiency of the future supporting HD-DVD disk form strengthened DVD video player and to produce disks with extremely good backward compatibility based on this storage way.
Description
technical field [0001] The present invention relates to HD-DVD technology, in particular to a method for generating a video object unit (VOBU) in the HD-DVD system. Background technique [0002] DVD-Video is now a huge success in the market, and interest in the high-resolution standard is increasing rapidly. Current DVD-Video discs accommodate images with a resolution of 720*480@29.94Hz or 720*576@25Hz, referred to herein as a Standard Definition (SD) video / data stream. The enhanced DVD-Video disc can accommodate images with a spatial resolution of 1280*720 or even 1920*1080, which is called high-definition (HD) video / data stream in this paper. [0003] If the same compression technology is used, high-quality video requires a higher bit-rate or bit-rate program stream. This means that for a single-sided CD with the same playing time (135 minutes), the total storage capacity of the CD must be increased. In addition to requiring an update of the optical disc production line...
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IPC IPC(8): G11B20/10G11B20/12G11B27/034G11B27/32H04N5/85H04N7/26H04N9/804H04N11/04H04N11/24
CPCG11B27/034G11B20/12G11B20/10527H04N11/004G11B2220/2579H04N5/85G11B2220/216G11B20/10H04N9/8042G11B27/329H04N11/044G11B2220/2562H04N11/26H04N5/92
Inventor 魏功明王蓓芬恩斯·布鲁斯
Owner KONINK PHILIPS ELECTRONICS NV