Method for extracting jpg pictures and mp3 files in batch from swf files

Abstract

The invention discloses a method for extracting jpg pictures and mp3 files in batch from swf files. The method comprises the following steps of: S1, receiving a source swf file set uploaded by a request end; S2, reading a source swf file in the source swf file set in a binary stream mode; S3, resolving a file header of the source swf file read in the S2 to acquire file header information; S4, resolving all tags in the source swf file according to the file header information to acquire all tag information; S5, sequentially judging types of all the tags; if the type of the tags is DefineBitsJPEG2, extracting jpg picture data from the tags, and storing the jpg picture data as jpg files; if the type of the tags is DefineSound, extracting mp3 audio data from the tags, and storing the mp3 audio data as mp3 files; if the type of the tags is End, executing the next step; and S6, repeating S2-S5 till all source swf files in the source swf file set are processed, and ending.

Description

technical field [0001] The invention relates to the technical field of Internet applications, in particular to a method for batch-extracting jpg pictures and mp3 files in swf files. Background technique [0002] For purposes of editing, modifying, etc., it is often necessary to extract the contained jpg picture and mp3 file from the swf file. [0003] However, in the prior art, there is no tool that can completely extract all jpg pictures and mp3 files from a swf file, and when a user needs to extract a jpg picture or an mp3 file from a swf file, it is usually for For a specific swf file, write a swf program by yourself, and use this program to process the swf file locally to extract the jpg picture or mp3 file. But if you need to extract multiple swf files, you can only process them one by one; [0004] This single local processing method is acceptable if there are only a few files to be processed, but if a large number of files (such as dozens or even hundreds or more) n...

AI Technical Summary

Problems solved by technology

[0004] This single local processing method is acceptable if there are only a few files to be processed, but if a large number of files (such as dozens or even hundreds or more) need to be processed, this A single way to process swf files is too time-consuming and laborious

[0005] Moreover, this self-written program cannot handle all swf files, so it has great limitations and cannot be applied in batches, and the integrity of the extracted files cannot be guaranteed.

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