Audio and video synchronization test and correction method and device and electronic device
An audio and video synchronization and video frame technology, applied in the field of signal processing, can solve the problems of poor audio and video synchronization correction, large development time, and cost, and achieve the effect of saving manpower and time costs and good audio and video synchronization effects
Active Publication Date: 2021-01-05
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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Problems solved by technology
[0003] The present disclosure provides a method, device and electronic device for audio and video synchronization testing and correction, to at least solve the problems in the related art that the audio and video synchronization correction consumes a lot of development time and the effect of audio and video synchronization correction is not good, and it may not be solved any of the above issues
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[0039] In order to enable ordinary persons in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.
[0040] It should be noted that the terms "first" and "second" in the specification and claims of the present disclosure and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following examples do not represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspect...
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The invention relates to an audio and video synchronization test and correction method and device and an electronic device, and the method comprises the steps: capturing a played specific video framesequence and audio frame sequence according to a preset frame rate, all video frames and all audio frames being in one-to-one correspondence, all video frames being different from each other, and allaudio frames being different from each other; wherein each video frame in the specific video frame sequence and an audio frame corresponding to the video frame in the audio frame sequence are played at the same time, and the playing time of each video frame is set according to the predetermined frame rate, so that at least one video frame in the specific video frame sequence can be captured according to the predetermined frame rate; performing image analysis on the captured video frame to determine a first timestamp of the captured video frame and an audio frame corresponding to the captured video frame in the audio frame sequence, and determining a second timestamp of the audio frame corresponding to the captured video frame by performing sound analysis on the captured audio frame; and performing audio and video synchronization correction according to the first timestamp and the second timestamp.
Description
technical field [0001] The present disclosure relates to the field of signal processing, and in particular to a method, device and electronic equipment for audio and video synchronization testing and correction. Background technique [0002] In the related art, even if the same recording software is used on different models, the audio and video capture time difference is often different. The traditional audio and video correction for recording software is in the development stage (for example, the recording software development stage), and the audio and video synchronization corrections are performed separately for each model. However, when a general-purpose software is adapted to various models, if an engineer manually adjusts the appropriate parameters for each model to perform audio and video synchronization verification, it will consume a lot of development time, and this correction This method is easy to introduce more human factors, which may lead to poor audio and vi...
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IPC IPC(8): H04N21/43H04N21/439H04N21/44H04N21/8547
CPCH04N21/4305H04N21/4307H04N21/8547H04N21/44008H04N21/4394
Inventor 王文峰
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD