Design And Implementation Of Short Video Map Application Based On IOS System

With the rapid development of mobile Internet,social networking platform is also increasing,social patterns also changed from text,pictures,voice interaction to the current short video exchange interaction.Compared with text and pictures,short video communication is more three-dimensional.Through the process of short video editing,such as filters,mapping,dubbing,short video contents are getting rich,meeting the needs of individual users and also increasing social network activity.This paper designed a short video mapping application based on IOS system to achieve short video editing.The main work of this paper is as follows:1.Project is divided into five modules,according to the video source,video clips,video processing and docking network requirements,which are video recordings,video input,video cropping,video editing,video sharing.The paper respectively describes the realization in each module.2.Video recording and clipping.Using AV Foundation framework,camera and microphone configuration device to capture audio and video resources,through the use of multiple fragments to achieve continuous recording,using AV Foundation framework synthesis to complete video recording.With imported local video,the user can intercept 3-20 s video clips through the video preview map,and synthetic interception of the video base on AV Foundation framework.3.Short video editing.Short video editing processing by frame image processing,through the realization of image short video frame extraction AV Foundation framework,and by OpenGL ES rendering graphics,display in the screen of the mobile device,and detect whether the frames contained in the face to face,the picture contains dynamic human face tracking the location and face mapping,free face images,the user can carry touch gestures on map.In the short video duration,the user can freely choose the time to map the insert also can be mixed with short video audio and video processing.After the synthesis of short video can share to WeChat,Weibo social platform.4.System testing.Carry on the application analysis of functional testing and performance testing.Examine the error of potential memory leak and code logic using static analysis andInstruments tools,and correct the problems founding through the test,improving the performance of software.