A real-time embedded design of MPEG-4 visual simple profile and advanced audio coding decoder using Digital Signal Processor and ARM9 core are presented in this paper.
文中提出应用数字信号处理器和微控制处理器ARM9核的MPEG-4视频简易框架和高级音频编码解码器的实时嵌入式设计。
MPEG-4 standards are described in brief. Based on this, audio object coding and video object coding are emphasized.
简要介绍了MPEG - 4标准的主要内容在此基础上着重介绍了音频对象的编码和视频对象的编码。
As the general coding of moving pictures and audio information, MPEG-2 is used in wide scope.
作为运动图像伴音信息的通用编码，MPEG - 2得到了广泛的应用。
And the new patent licensing policy introduced by MPEG-4 is considered to be too harsh and unacceptable. Many such reasons urgently need a new audio video coding standard to be introduced.
而MPEG - 4出台的新专利许可政策被认为过于苛刻无法接受，诸多此类原因都迫切需要一种新的视频编码标准出台。
Rate-distortion control algorithm in MPEG-4 AAC(Advanced Audio Coding) needs to search Huffman code books many times to obtain the reference number of the current consumed bits.
AAC的码率失真控制算法需要多次检索霍夫曼码书以获得当前状态比特消耗的参考值。
Rate-distortion control algorithm in MPEG-4 AAC(Advanced Audio Coding) needs to search Huffman code books many times to obtain the reference number of the current consumed bits.
AAC的码率失真控制算法需要多次检索霍夫曼码书以获得当前状态比特消耗的参考值。
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