具有浮点指令的g.729语音压缩编码，符合ITU-T G.729 Annex C 规范，通过修改makefile可以支持windows/linux/solaris等操作系统，仅需要很少的更改就可以应用到voip领域
上传时间： 2016-09-24
上传用户：hongmo
g.729a语音压缩编码最新版本，符合ITU-T G.729 Annex A 2006年的规范，通过修改makefile可以支持windows/linux/solaris等操作系统，g.729a是g.729的简化复杂度后的结果，适合应用在嵌入式领域的voip实现。
上传时间： 2013-12-19
上传用户：cylnpy
ITU656介绍，提供使用者了解ITU-R BT.601规范
上传时间： 2014-06-28
上传用户：lijianyu172
H.248协议，也叫MeGaCo协议，是媒体网关控制器（MGC）与媒体网关（MG）之间的一种媒体网关控制协议，这个协议是一项ITU-T与IETF合作结果的新标准。目前ITU-T、IETF、软交换论坛等标准化组织正在加紧对H.248协议进行完善，各大电信设备制造商也在H.248协议的研发和应用上加大了投入。与MGCP协议相比，H.248协议可以支持更多类型的接入技术并支持终端的移动性，除此之外，H.248协议最显著之处在于能够支持更大规模的网络应用，而且更便于对协议进行扩充，因而灵活性更强，已逐渐取代MGCP发展成为媒体网关控制协议的标准
上传时间： 2016-12-17
上传用户：笨小孩
H.264/AVC, the result of the collaboration between the ISO/IEC Moving Picture Experts Group and the ITU-T Video Coding Experts Group, is the latest standard for video coding. The goals of this standardization effort were enhanced compression efficiency, network friendly video representation for interactive (video telephony) and non-interactive applications (broadcast, streaming, storage, video on demand). H.264/AVC provides gains in compression efficiency of up to 50％ over a wide range of bit rates and video resolutions compared to previous standards. Compared to previous standards, the decoder complexity is about four times that of MPEG-2 and two times that of MPEG-4 Visual Simple Profile. This paper provides an overview of the new tools, features and complexity of H.264/AVC.
标签： the collaboration between Experts
上传时间： 2013-12-30
上传用户：dongbaobao
COSTG711算法，完全兼容ITU-G.711，来自于Cambridge University。
上传时间： 2017-01-13
上传用户：er1219
Overview Input Clock = 24Mhz Preview VGA 15fps @ 60Hz VGA 12.5fps @ 50Hz Capture VGA 15fps @ 60Hz VGA 12.5fps @ 50Hz Output Format YCbCr 4:2:2 (ITU 656) YCbCr to RGB conversion R = Y + (351*(Cr – 128)) >> 8 G = Y – (179*(Cr – 128) + 86*(Cb – 128))>>8 B = Y + (443*(Cb – 128)) >> 8
上传时间： 2013-12-24
上传用户：远远ssad
This document contains a detailed description of the usage and configuration of the JSVM [Joint Scalable Video Model] software for the Scalable Video Coding [SVC] project of the Joint Video Team [JVT] of the ISO/IEC Moving Pictures Experts Group [MPEG] and the ITU-T Video Coding Experts Group [VCEG]. It provides information how to build the software on Windows32 and Linux platforms. It contains a description of the usage and configuration for the binaries built from the software package, including examples for spatial, SNR and combined scalability scenarios. Guidelines for the integration and validation of new tools in the software are provided.
标签： configuration description the document
上传时间： 2017-03-26
上传用户：sz_hjbf
A certification path is an ordered list of certificates starting with a certificate issued by the relying party s trust root, and ending with the target certificate that needs to be validated. Certification path validation procedures are based on the algorithm supplied in ITU-T Recommendation X.509 and further defined in Internet Engineering Task Force (IETF) Request for Comments (RFC) 3280. Certification path processing verifies the binding between the subject distinguished name and/or subject alternative name and the subject public key defined in the target certificate. The binding is limited by constraints, which are specified in the certificates that comprise the path, and inputs that are specified by the relying party. To ensure secure interoperation of PKI-enabled applications, the path validation must be done in accordance with the X.509 and RFC 3280 specifications. This document provides the test assertions and the test cases for testing path validation software against these specifications.
标签： certification certificates certificate starting
上传时间： 2017-07-31
上传用户：清风冷雨
TW9910 I2C初始化程序，把CVBS信号转换成ITU-R-656格式输出，液晶屏是3.5寸奇美屏。
上传时间： 2014-01-20
上传用户：PresidentHuang
