最近Google宣布, 与On2 Technologies达成最终协议，将收购这家总部位于纽约克利夫公园的视频压缩技术开发商. On2公司主要为桌面和移动应用开发先进的视频压缩、编码和潜入技术，主要产品包括视频编码VP6/VP7/VP8、Web开发平台Flix Pro、一系列Web浏览器插件Flix Publisher、服务器转码平台Flix Engine、视频内容创建库Flix DirectShow SDK，服务客户有Adobe、Skype、Sun、Brightcove、Move Networks、诺基亚、英飞凌、联发科、索尼等业界大厂，其中Flash编码工具在过去三年中分别贡献了64％、4[......]
本文来自: 由Google收购ON2谈起
最近一直在Mac OS X下工作, 已经很久没有通过Bootcamp或VMWare Fusion开启Windows 系统了, 基本上我在Windows下需要的工作及休闲软件在Mac OS X下都有对应的软件,下面是对比列表.
Windows
Mac OS X
备注
编程类
Visual Studio
Xcode
可能需要一段时间适应Xcode的开发环境,但对于基本上只用来编控制台程序的我而言,学习曲线很小
Matlab for Windows
Matlab for Mac/Unix
我用的都是2009a版本,完全一样,没有任何区别
办公类
Microsoft Offi[......]
As well-known, the JVT (a joint video team between MPEG and VCEG) achieves great success in the standardization of the state-of-art video compression, including H.264/AVC, SVC, and MVC. The academic and industry want to continue the success in the collaboration between MPEG and VCEG. Some proposals [......]
In the last MPEG Maui meeting, MPEG issued a Call for Evidence (CfE) on High-performance Video Coding (HVC). Nine responses to the CfE are received in this meeting (89th MPEG London). Those reponse proposals adopt typical coding tools in KTA, such as adaptive loop filter (ALF), extended macroblock s[......]
本文来自: Current Status of HVC (High-performance Video Coding) in MPEG
AvsX开源项目现已启动, 我已在SourceForge建立了AvsX的项目网址 http://avsx.sourceforge.net. 将来有可能迁移到正式的AvsX网址: http://www.avsx.org (建设中).
AvsX decoder部分的源代码加入了该网址 http://sourceforge.net/projects/avsx/,下一步的计划,继续将AvsX encoder部分的源代码逐步加入.
由于一个人的力量有限,对AvsX的编解码器的优化难以完善,希望有更多对AVS开源编解码器有兴趣的朋友能够加入该项目. 如果想参与到这个项目或者修改源代码的，你可以把你的代码e[......]
本文来自: AvsX开源项目的启动
Today, IETR (Institut d’ Electronique et de Télécommunications de Rennes, France) announces an open source SVC decoder library for TCPMP and Mplayer, 2 different opensource players.
The source code of this decoding library is available here. Further information can be found here about installa[......]
本文来自: IETR Announces an Open Source Code of H.264/SVC Decoder
为了给开源社区贡献一份力量，特此公开本人开发的AVS基准及加强档次兼容视频编解码器AvsXCore – Decoder部分的源代码。本解码器已经完全通过最新2009版的AVS P2 – Jizhun Profile符合性测试的92个标准测试码流，并且完全兼容最新2009年正在报批的AVS P2 – Jiaqiang Profile。
下载地址：avsxdecore-r1-b20090617.zip
AvsXCore项目下一步开发计划为，采用NVIDIA CUDA架构，实现基于GPU加速的AVS视频解码器，以达到1080p的实时解码及降低CPU的占用率的目标。[......]
本文来自: AVS基准及加强档次兼容的视频解码器参考设计
The 89th MPEG / 31st JVT / 38th ITU-VCEG meetings are hosted by the Centre for Digital Music, School of Electronic Engineering and Computer Science of Queen Mary University of London, UK.
- AhGs will meet on 27-28 June 2009.
- The 89th MPEG Meeting will be held on 29 June – 3 July, 2009.
- The 31st[......]
在前面的文章中，曾介绍过Xcode IDE环境下的CUDA设置。之前提过我的CUDA Plugin for Xcode一直设置不成功，经过一番折腾，总算是把Xcode IDE的CUDA配置给搞定了。下面介绍一下如何设置CUDA Plugin for Xcode IDE。
- 首先安装NVIDIA最新的显卡驱动,以及 CUDA Toolkit 和 CUDA SDK. 下载地址 here.
- 安装CUDA之后，你可以测试一下你的机器是否CUDA配置正确。方法如下：进入CUDA安装目录，我将CUDA安装在/Developer目录下。在/Developer/CUDA下有一个Makefile，在该目录[......]
4. Rate-Distortion Optimized Quantization
Previously, adaptive rounding was proposed to improve quantization, which captures the statistics of the incoming residual signal and adjusts the rounding offsets accordingly. However, the adaptive rounding quantization is still based on the criterion which [......]