完全负责硬件加速处理 BitstreamProcessing( 码流处理)和 Entropy Decode(熵解码),由 Shader 着色单元来硬件加速FrequencyTransform(频率转换)、Pixel Prediction(像素预测)和Deblocking
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... 熵译码器 entropy decoder 熵解码 entropy decoding 熵编码器 entropy encoder ...
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...imation)、变换(Transform)及逆变换、量化(Quantization)及逆量化、环路 滤波器(Loop Filter)、熵解码(Entropy Coding)(如何设置参数在视频转换中占有重 要地位,决定了视频输出的质量)。
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According to the characteristics of Huffman table and JPEG standard, parallel algorithm for entropy decoding is proposed to achieve a fast Huffman decoding.
基于JPEG标准中Huffman码表的规律提出并行熵解码的算法,实现了快速Huffman解码。
参考来源 - 基于FPGA的JPEG解码算法的研究与实现The system is composed with six sections which are entropy decoder, inverse Z transform, inverse quantization, inverse discrete cosine transform (IDCT), up sampling and color space transform.
JPEG解码算法主要由熵解码、逆Z变换、反量化、反离散余弦变换、内插和色度空间转换六部分组成。
参考来源 - 基于MCF5272的JPEG解码算法的设计与实现·2,447,543篇论文数据,部分数据来源于NoteExpress
接着对解码中比较耗时的熵解码及自适应环路滤波模块做了详细的介绍。
Then introduced the entropy decoding and adaptive in-loop filter which are time-consuming modules.
专用视频处理模块包括运动补偿单元 (510)、用于执行IDCT和反量化的装置(512)、熵解码单元(513) 以及过滤单元(515)。
The special video processing modules include a motion compensation unit (510), means (512) for performing IDCT and inverse quantization, an entropy decoding unit (513) and a filter unit (515).
在尽量减少时钟消耗的前提下,此解码器可以解码每个变换块中变换系数的熵编码码流,并将结果按照块扫描顺序并行输出。
While minimizing the use of clock cycles, it could decode the coded stream of transform coefficients in each block and output the decoded coefficients in zigzag scanning order.
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