A Mobile Application of Video Transmission to Cloud Services

Abstract

The paper presents a new way to obtain evidence with a mobile device - by means of an Android-application that allows to rapidly start video transmission to cloud services. For the sake of quick launch there is a widget available to the user which can be placed on the home screen. Tapping the widget starts video recording which is sent to cloud service as it is recorded. The latter is essential for the security of data that has already been received, even if the device has been damaged. To save as much data as possible in unexpected situations which lead to phone’s loss, small duration of one fragment has been chosen - one second. Upon completion of the recording the user has an opportunity to assemble the whole clip from its fragments, downloading missing fragments from cloud service if necessary. The practical value of the application is that it allows to record events reliably and quickly enough, and the collected video materials can be useful both for litigations and for self-study. The paper analyzes existing solutions. As a result, each of them is found to have certain disadvantages preventing them from usage in video evidence retrieval. An architecture for the application is proposed, featuring the MVC design pattern with 6 modules. The application implementation is described and the developed UI is presented.