Making method, device, playing device and method for media electronic file

Abstract

The invention discloses a method for making electronic media files, which includes the following steps: encode the audio and video data by taking block structure as a basic organization form to generate the electronic media files, wherein, the block structure includes a plurality of block data which are: an integral information block used for storing the whole information of the files, a video information block used for storing the video information of the files, an audio information block used for storing the audio information of the files, a basic media data block used for storing the video and audio data according to the divided category of the main categories and a summary information block used for storing the summary information of the audio and video information of each main category. Because the audio information block and the video information block are edited independently, the audio data and the video data can be encoded in a basic data storage unit according to different formats, which is easy to expand the electronic media file. As the electronic media file takes the block as the organization form, each data block can store data according to different levels, thus the method can save the memory space of the electronic media file compared with the prior art.

Description

technical field [0001] The present invention relates to the technical field of media playing, and more specifically, to a method and device for making a media electronic file, as well as its playing equipment and method. Background technique [0002] Matrox Electronic Systems Ltd. (Matrox Electronic Systems Ltd.) formulated OpenDML AVI Format Extensions (open DML audio and video interleaved format range) in September 1997 for capturing, editing and playback of video and audio sequences. Format information and data information are stored separately in a LIST (list), and each item of format information is unique. Video and audio data is stored by frame, the size and storage location of audio and video data are random, and each frame of data is non-encrypted data. The end of the file contains the index table of the entire video and audio data frame. [0003] The format LIST and media data LIST in the AVI (Audio Video Interleaved, Audio Video Interleaved) file structure are in...

AI Technical Summary

Problems solved by technology

[0004] Synchronization in AVI is based on the frame rate of the video and the bit rate of the audio to synchronize the video and audio. When separating audio and video data, it is necessary to calculate the timestamp of the audio and video. At the same time, the irregular sequence of audio and video frames leads to the efficiency of separation. Low, low synchronization efficiency, which directly affects the efficiency of playback

[0005] In addition, AVI lacks a certain security mechanism, and lacks an interface to communicate with external security mechanisms

AVI cannot provide measures to protect the interests of advertisers

Finally, the loose frame structure in AVI is difficult to meet the seamless switching between the main voice and the accompanying voice in K-Show (a technology for synthesizing original singing, accompanying voice, lyrics, recording and recording playback).

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