Design And Implementation Of Audio And Video Editing Library

With the development of social communication technology, multimedia technology are developing rapidly. As one of the main technical multimedia audio and video codec technology has also been considerable development. But now according to the different needs of various companies of different audio and video formats designed to make audio and video market in the format of many, do not use either, which are not conducive to mutual development of multimedia and user situation. So, when a variety of encoding and decoding algorithm to use either the unity between various audio formats and can be converted to not only to continue the good development of multimedia technology also allows users to easily use a variety of audio and video formats. In addition, the diversity of modern thinking, in reality, the video appeared on the reprocessing of existing demand, which requires audio and video codec technology in some studies, limited to audio and video editing software. Therefore, this paper studied the existing audio and video technology and design and implement audio and video editing library.Audio and video codec technology is one of the key technologies of multimedia technology. Multimedia information with the amount of information, information redundancy and other characteristics, but the multimedia information can be the most direct and effective way to transmit information. Now the Status of network technology and storage technology, limits the use of multimedia information.Therefore, compression of multimedia information is necessary. People now live diversification, diversification of demand, the demand for on a variety of media. The existing audio and video post-processing is the multimedia needs of a people. This will not only enrich existing multimedia information, but also the direction of the new multimedia technology anyway.Paper discusses the audio and video codec technology development at home and abroad. The existing audio and video codec technology and the FFmpeg librarys, based on dynamic link libraries to use technology, according to the existing requirements, design and implementation of an audio and video editing library. This gives the functional requirements of each module and process design. In the system architecture, with regard to the application of the editing library goals were reasonable and effective structural design, reasonable and orderly completion of the audio and video editing database design and implementation.This audio and video editing library designed primarily to facilitate the development of fast and efficient personnel development in line with the actual needs of video products, and thus make the video production crew video production more efficient production.