Method for controlling command in playing procedure of video player

A technology of video player and command control, which is applied in the field of command control during video player playback and audio and video disc playback command control, and can solve the problems affecting the difficulty of DVD video discs and players, occupying storage resources, and difficulty in players, etc. , to achieve the effect of increasing system overhead, simple implementation, and simple and clear structure

Active Publication Date: 2005-01-05
AMOLOGIC (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the DVD-Video (DVD) navigation system has a set of powerful command interpretation operation mechanism, which can support calculation, conditional jump, timer operation and some other functions, which almost cover all necessary occasions, but its There are a great variety of commands, and the commands used are scattered in several places (PGC, CELL, Button) of the DVD-Video (DVD) navigation system, which not only takes up tight storage resources, but also causes the player to be very complicated due to its complexity. It is difficult to fully and correctly explain and execute all commands, which ultimately affects the difficulty of making DVD video discs and players, as well as the stability of DVD video disc playback

Method used

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  • Method for controlling command in playing procedure of video player
  • Method for controlling command in playing procedure of video player
  • Method for controlling command in playing procedure of video player

Examples

Experimental program
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Embodiment Construction

[0012] Before describing the preferred embodiment according to the present invention, present the conventions, abbreviations and descriptions of basic types which will be used in describing the preferred embodiment, which constitute the basic knowledge or description method of the preferred embodiment The description is helpful for better understanding of the preferred embodiment.

[0013] conventions and abbreviations

[0014] bit sorting

[0015] All multi-bit bit numbers are shown graphically with the most significant bit (msb) on the left and the least significant bit (lsb) on the right. The most significant bit is the bit with the highest bit number.

[0016] In Table 1 below, bit i represents the bit whose bit position is i.

[0017] Table 1: Sorting instructions for 8 bytes

[0018] msb lsb

[0019]

[0020] byte order

[0021] Data requiring more than 8 bits to represent occupies more than one byte on the video disc. For all of this data, the byte order on th...

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Abstract

The invention is a method for command control in the process of playing of video player. The invention uses a independent command control file to store all the needed commands, the command files are made up of several command groups, each command group is made up of several commands, the command control files store the information file for controlling the play order and effect of the disk needed by the disk, which includes the control of playing connection among each audio frequency sources, the settings control of audio and caption, the control of the playing effect of caption and high bright area, the system executes these commands through a series of commands. In the invention, the interaction operation of user becomes the necessary function of the audio frequency disk playing, and the playing of the player can be realized easily.

Description

technical field [0001] The invention relates to a method for command control of playing audio and video disks, in particular to a method for command control in the process of playing a video player. It belongs to the technical field of video playing. Background technique [0002] During the playback of the audio and video source disk, each playback source needs to be played according to a certain playback sequence. The navigation system must be able to support the playback sequence set by default and the playback sequence set by the user. Audio and video discs can control the navigation system through a series of commands to achieve the required playback sequence. At the same time, the corresponding commands for user interaction must also be executed by the navigation system. After searching, it is found that the DVD Specifications for Read-Only Disc Part3 VideoSpecifications Version 1.12 July 2000 (DVD Read-Only Disc Specifications Part 3 Video Specifications, Version 1.1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/10G11B20/00H04N5/76
Inventor 钟培峰陈实
Owner AMOLOGIC (SHANGHAI) CO LTD
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