Design And Implementation The Medium Player Based On YinHe Kylin (Gnome GUI)

The operating system is the soul of computer and there is no need to query its position in the information safety. Face up to the rigorous safey situation, it is imminent to develop and spread relatively safe operatiing system. With the multi-media file playing as the problem of the utmost urgency in spreading the YinHe Kylin operating system, this thesis chooses medium player as the developing target and develops a medium player which support all the audio-visual format medium player other than that supporing rm format, which the users can only double-click to finish installation. The main content and achivement of the research are as follows:(1) Through the installation and use of the YinHe Kylin system, this thesis finds out the bottleneck problem in spreading this system—the support of multi-media file playing; with the practice of software development, this thesis explores and sumarizes a general approach for the applied software development in Kylin system.(2) Via study and research, this thesis grasps the method of Gnome and Gtk+ programme, and successfully composes the front interface of medium player with the use of Gtk+ and other Gnome database.(3) As to the requirement of developing medium player, the paper makes an initial study of the format and coding/encoding of various kinds of audio-visual files.(4) This thesis masters the Gsstreamer programme thought and means and successfully realizes the backstage modular of meidum player by the use of GStreamer through studay and research.(5) This paper finally succeeds in completing the establishment of GStreamer developing environment in Kylin system, and makes an elementary summary of expirence in constructing programme environment of Unix system in Kylin system.(6) With the basis of the above research, the present paper realizes a medium player in YinHe Kylin system, and ensures users to finish installing the software by double-clicking mouse, so that it improves the usablity of the Kylin system and solves the bottleneck problem in the promulgation of Kylin system.As to the topic of medium player in the YinHe Kylin system, an introduces is firstly made to the proposal of demand and the preliminary design prototype. Then the thesis states respectively the design scenario of the front interface and backstage modular of the player. Finally, the paper reviews the software implementation process and elaborates on the information cntrol mechanism, affairs processing, obtaining document information, establishment of GStreamer broadcasting passage, GStreamer total line news control, the rpm gearing wrap creation, etc.