CN201282535Y - H.264到avs视频码流转换装置 - Google Patents
H.264到avs视频码流转换装置 Download PDFInfo
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- CN201282535Y CN201282535Y CN 200820146470 CN200820146470U CN201282535Y CN 201282535 Y CN201282535 Y CN 201282535Y CN 200820146470 CN200820146470 CN 200820146470 CN 200820146470 U CN200820146470 U CN 200820146470U CN 201282535 Y CN201282535 Y CN 201282535Y
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Abstract
Description
技术模块 | AVS-P2 | H.264 |
帧内预测 | 基于8×8块,5种亮度预测模式,4种色度预测模式 | 9种4×4亮度块模式,4种16×16亮度块模式,4种8×8色度块模式 |
多参考帧预测 | 最多2帧 | 最多16帧复杂的缓冲区管理机制 |
变块大小运动补偿 | 16×16、16×8、8×16、8×8块运动搜索 | 16×16、16×8、8*16、8*8、8*4、4×8、4×4块运动搜索 |
B帧宏块对称模式 | 只搜索前向运动向量即可 | 双向搜索 |
1/4像素运动补偿 | 1/2像素位置采用4拍滤波1/4像素位置采用4拍滤波、线性插值 | 1/2像素位置采用6拍滤波1/4像素位置线性插值 |
变换与量化 | 解码端归一化在编码端完成,降低解码复杂性 | 编解码端都需进行归一化 |
熵编码 | 上下文自适应2D-VLC,Exp-Golomb码降低计算及存储复杂性 | CAVLC:与周围块相关性高,实现较复杂CABAC:硬件实现特别复杂 |
环路滤波 | 基于8×8块边缘进行,简单的滤波强度分类,滤波较少的像素 | 基于4×4块边缘进行,滤波强度分类繁多,滤波边缘多 |
容错编码 | 简单的条带划分机制足以满足广博应用中的错误隐藏、恢复需求 | 数据分割、复杂的FMO/ASO等宏块、条带组织机制、强制Intra块刷新编码、约束性帧内预测等实现特别复杂 |
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CN 200820146470 CN201282535Y (zh) | 2008-08-18 | 2008-08-18 | H.264到avs视频码流转换装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102098502A (zh) * | 2009-12-14 | 2011-06-15 | 无锡中星微电子有限公司 | 一种编码格式转化的方法及装置 |
CN102186082A (zh) * | 2011-05-13 | 2011-09-14 | 哈尔滨工业大学 | 基于h.264协议中对于帧内编码压缩技术的优化解码方法 |
CN101909211B (zh) * | 2010-01-04 | 2012-05-23 | 西安电子科技大学 | 基于快速模式判决的h.264/avc高效转码器 |
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2008
- 2008-08-18 CN CN 200820146470 patent/CN201282535Y/zh not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102098502A (zh) * | 2009-12-14 | 2011-06-15 | 无锡中星微电子有限公司 | 一种编码格式转化的方法及装置 |
CN102098502B (zh) * | 2009-12-14 | 2015-06-03 | 无锡中星微电子有限公司 | 一种编码格式转化的方法及装置 |
CN101909211B (zh) * | 2010-01-04 | 2012-05-23 | 西安电子科技大学 | 基于快速模式判决的h.264/avc高效转码器 |
CN102186082A (zh) * | 2011-05-13 | 2011-09-14 | 哈尔滨工业大学 | 基于h.264协议中对于帧内编码压缩技术的优化解码方法 |
CN102186082B (zh) * | 2011-05-13 | 2014-04-16 | 哈尔滨工业大学 | 基于h.264协议中对于帧内编码压缩技术的优化解码方法 |
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Address after: Nanshan District Nanshan Road Shenzhen city Guangdong province 518054 Nanshan Industrial Zone No. 1124 Nanyou fourth smart grid industrial park 807 Patentee after: Shenzhen Tieyue Electric Co., Ltd. Address before: 518067, F, 13, sea view Plaza, 18 Prince Edward Road, Shekou, Guangdong, Nanshan District, Shenzhen Patentee before: Shenzhen Tieyue Electric Co., Ltd. |
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Address after: Dragon Street Longgang Huangge Road District of Shenzhen City, Guangdong province 518054 No. 441 Longgang Tianan cyber Park No. 1 building block B B804 Patentee after: Shenzhen Tieyue Electric Co., Ltd. Address before: Nanshan District Nanshan Road Shenzhen city Guangdong province 518054 Nanshan Industrial Zone No. 1124 Nanyou fourth smart grid industrial park 807 Patentee before: Shenzhen Tieyue Electric Co., Ltd. |
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