MP4 (Mobile Pentium 4) video format corruption detection method

Abstract

The invention discloses an MP4 (Mobile Pentium 4) video format corruption detection method. The method comprises the following steps: opening a video file of an MP4 format; reading metadata information in the opened video file to obtain the size of each BOX; adding the sizes of all the obtained BOXes to obtain the theoretical size s0 of the video file; reading the size s1 of the MP4 format video file in a file system; comparing the sizes of the s0 and the s1; if the s0 is greater than the s1, judging that the video file is corrupted and recording the video corruption information in a log; if the s0 is equal to the s1, judging that the video file is uncorrupted; reading a next piece of video. The method aims to realize the advantages of precision in detection, labor saving and cost reduction.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a method for detecting MP4 video format damage. Background technique [0002] Due to an unstable network environment or disk read and write bottlenecks, the video submitted by the user is incomplete, resulting in a discrepancy between the playback duration displayed during playback and the actual playback duration. To solve this problem, the existing solution is to use the player to open the video; verify the length of the video; pull the timeline near the end of the timeline; confirm whether the video at the end of the timeline can be played normally; if it can be played normally, check the next video; This method has the following problems, which need to be detected manually; and all files need to be saved locally first; the damage of less than 2 seconds is difficult to detect manually; the detection of a single video takes too long; the cost input is proportional to the n...

AI Technical Summary

Problems solved by technology

[0002] Due to an unstable network environment or disk read and write bottlenecks, the video submitted by the user is incomplete, resulting in a discrepancy between the playback duration displayed during playback and the actual playback duration

To solve this problem, the existing solution is to use the player to open the video; verify the length of the video; pull the timeline near the end of the timeline; confirm whether the video at the end of the timeline can be played normally; if it can be played normally, check the next video; This method has the following problems, which need to be detected manually; and all files need to be saved locally first; the damage of less than 2 seconds is difficult to detect manually; the detection of a single video takes too long; the cost input is proportional to the number of videos, when the video When the quantity reaches the order of millions, it needs to invest a lot of manpower and time

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