隨著科技的快速演進，現代人對行動通訊、無線上網與多媒體娛樂的需求更甚以往。以國際市調研究機構Gartner最新出爐的調查為例，採用Android作業系統的智慧型手機，在過去一年以來
已成為佔有率第二並且成長幅度最高。目前Android所釋放出來的多媒體原始碼，並沒有充分利用平台的多媒體加速器， 執行效能還有改進的空間。因此， 我們試著將工研院資通所自行研發的PACDSP多媒體運算加速器與Android軟體平台整合， 其解碼效能有明顯之增強， 此外本文將朝StageFright多媒體架構的探討， 並分享如何將我們現有的PACDSP Codec整合進入Android多媒體框架中， 以提昇解壓縮效能。

For the fast evolution of the science and technology, people in the present day have more requirements on mobile communication, Internet for wireless and multimedia amusement. An international market analysis in Gartner is presented in which Android system has a highest number of product to be sold in the past one year to compare with these following products, for example the Apple iPhone, RIM and Microsoft WP7. Currently, the performance for Android still needs to have a better improvement since the Android is still in a developing step and many multimedia functions are not enough. Therefore, we use and integrate ITRI’s PACDSP into Android system such that the performance of the decoding has an obvious improvement. Moreover, we also present multimedia framework of StageFright for Android and introduce how the PACDSP integrates with multimedia framework of Android system to speed up the performance of
decoding.