| 基于Qtopia的RealMedia解码器插件移植与优化 |
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| 引用本文： | 祝炎明,何加铭,范志蔚.基于Qtopia的RealMedia解码器插件移植与优化[J].计算机应用与软件,2008,25(11). |
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| 作者姓名： | 祝炎明 何加铭 范志蔚 |
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| 作者单位： | 1. 宁波大学通信技术研究所,浙江,宁波,315211
2. 多媒体通信教育部工程研究中心,浙江,宁波,315211 |
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| 基金项目： | 浙江省科技计划重点科研项目 |
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| 摘 要： | 针对目前手持多媒体播放器对RealMedia格式支持不足,在对RealMedia格式,Qtopia中Mediaplayer的解码器插件进行分析的基础上,把RealMedia解码器作为播放器插件在基于i.MX21的手持多媒体播放器上进行了移植,并着重对解码器性能进行了优化,实现了基于硬件的色彩空间转换和图像缩放,显著提升了解码器性能.
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| 关 键 词： | 解码器 优化 硬件加速 |
TRANSPLANTATION AND OPTIMIZATION OF REALMEDIA DECODER PLUGIN BASED ON QTOPIA |
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| Zhu Yanming,He Jiaming,Fan Zhiwei.TRANSPLANTATION AND OPTIMIZATION OF REALMEDIA DECODER PLUGIN BASED ON QTOPIA[J].Computer Applications and Software,2008,25(11). |
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| Authors: | Zhu Yanming He Jiaming Fan Zhiwei |
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| Affiliation: | Zhu Yanming He Jiaming Fan Zhiwei (Institute of Communication Technology,Ningbo 315211,Zhejiang,China) (Engineering Research Center of Multimedia Communication,Ministry of Education,China) |
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| Abstract: | Currently,the portable multimedia player can not support RealMedia format.The RealMedia format and the decoder plugin of Mediaplayer in Qtopia are analyzed.RealMedia decoder is transplanted as a plugin to i.MX21-based portable multimedia player.Then,the performance of the decoder is optimized to realize the colour space converting and image scaling based on hardware,which improves the per- formance of decoder remarkably. |
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| Keywords: | RealMedia |
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