Information writing method and device of MP3 files
A technology for writing information and files, applied in the field of multimedia, can solve the problem of lack of copyright information writing method, and achieve the effect of good concealment and simple implementation process.
Active Publication Date: 2011-03-30
GUANGZHOU KUGOU COMP TECH CO LTD
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Problems solved by technology
[0011] Therefore, there is a lack of a simple and effective copyright information writing method that does not damage the sound quality of MP3 files in the prior art
Method used
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[0064] The core idea of the embodiments of the present invention is: write the binary code that the information to be written into in the audio frame header of the MP3 file, when needing to obtain the information to be written in the MP3 file, read the audio frequency of the MP3 file The binary code written in the frame header, by converting the binary code to obtain the writing information of the MP3 file, has good concealment and simple implementation process.
[0065] Specifically, the embodiment of the present invention provides a method for writing information of an MP3 file, such as figure 1 shown, including the following steps:
[0066] Step 101, convert the information to be written in the MP3 file into binary code.
[0067] Specifically, converting the information to be written into the MP3 file into binary code includes:
[0068] Convert the information to be written into the MP3 file into a preset character code, such as UTF-8 character code;
[0069] The pres...
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The embodiment of the invention discloses an information writing method of MP3 files, comprising the steps: converting the information of MP3 files to be written into binary codes; writing the binary codes converted by the information to be written in frame heads of audio frames of the MP3 files; and reading the binary codes written in the frame heads of the audio frames of the MP3 files and obtaining the written information of the MP3 files according to the binary codes when needing to obtain the information to be written in the MP3 files. In the information writing method of MP3 files, the information of the MP3 files to be written is converted into the binary codes and is written into the frame heads of the audio frames of the MP3 files; when needing to obtain the information to be written in the MP3 files, the information to be written is obtained by reading the binary codes written in the frame heads of the audio frames of the MP3 files; and consequently, the copyright information of the MP3 files can be written into the frame heads of the audio frames. The information writing method of MP3 files has the advantages of good concealing property and simple realizing process.
Description
technical field [0001] The invention relates to the field of multimedia technology, in particular to an information adding method and device for MP3 files. Background technique [0002] MP3 (Moving Picture Experts Group Audio Layer III, moving picture expert compression standard audio level 3) is a very popular digital audio coding and lossy compression format today, used to greatly reduce the amount of audio data, and for most users In other words, the sound quality of the playback is not significantly lower than that of the original uncompressed audio. Because the full name of this compression method is called MPEG Audio Layer3, people call it MP3 for short. MP3 uses MPEG Audio Layer3 technology to compress music into smaller files with a compression ratio of 1:10 or even 1:12. In other words, it can compress files to smaller files with little loss of sound quality. The degree, but also very good to maintain the original sound quality. The MP3 format of music per minute...
Claims
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IPC IPC(8): G11B20/12
Inventor 郑焕德
Owner GUANGZHOU KUGOU COMP TECH CO LTD