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Description: ITU-T X.224-1995 信息技术 开放系统互连（osi） 提供连接模式传输业务协议-information technology—open systems interconnection—protocol for providing the connection—mode transport service
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Author: 风帆 |
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Description: 基于DSP的G.729语音编码－－－已在TMS320VC5535中实现-/*
ITU-T G.729 Speech Coder ANSI-C Source Code
Copyright (c) 1995, AT&T, France Telecom, NTT, Universite de Sherbrooke.
All rights reserved.
*/
/*-------------------------------------------------------------------*
* Main program of the ITU-T G.729 8 kbit/s encoder. *
* *
* Usage : coder speech_file bitstream_file *
*-------------------------------------------------------------------*/
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Author: yueqiulijun |
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Description: 在传统电话系统中，一次通话从建立系统连接到拆除连接都需要一定的信令来配合完成。同样，在IP电话中，如何寻找被叫方、如何建立应答、如何按照彼此的数据处理能力发送数据，也需要相应的信令系统，一般称为协议。目前在国际上，比较有景响的IP电话方面的协议包括ITU-T提出的H.323协议和IETE提出的SIP协议，本节主要介绍目前用得最广泛H.323协议。-In the traditional telephone system, a call from the establishment of systems to connect to dismantle connection with the completion of signaling. Likewise, IP telephony, how to find the called party, how to create a response, how to send data to each other s data processing capabilities, signaling systems, commonly known as the Agreement. Internationally, more King loud IP telephony protocols, including ITU-T H.323 and SIP protocol IETE, this section introduces the most widely used H.323 protocol.
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Author: lxx |
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Description: 基于ITU-T G.729的语音编解码程序，已经调试成功可以使用-Based on the ITU-T G.729 voice codec program has been successful commissioning can use
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Author: zhangyue |
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Description: ASN.1开源编解码代码。ASN.1抽象语法标记（Abstract Syntax Notation One） ASN.1是一种 ISO/ITU-T 标准，描述了一种对数据进行表示、编码、传输和解码的数据格式。它提供了一整套正规的格式用于描述对象的结构，而不管语言上如何执行及这些数据的具体指代，也不用去管到底是什么样的应用程序。-ASN.1 stands for Abstract Syntax Notation One.
ASN.1 allows to describe complex data structures independently of any particular programming language. The ASN.1 compiler would take these ASN.1 specifications and produce a set of target language (C, C++, Java) files which would contain the native type definitions for these abstractly specified structures, and also generate a code which would perform the conversions of these structures into/from a series of bytes (serialization/deserialization), (presumably, these routines would be useful if the structure is going to be transferred over the network or written to an external media).
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Author: William Wang |
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Description: G.711算法，它是国际电信联盟ITU-T订定出来的一套语音压缩标准，它代表了对数PCM（logarithmic pulse-code modulation）抽样标准，主要用于电话。它主要用脉冲编码调制对音频采样，采样率为8k每秒。它利用一个 64Kbps 未压缩通道传输语音讯号。 起压缩率为1：2， 即把16位数据压缩成8位。G.711是主流的波形声音编解码器。-G.711 algorithm
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Size: 19456 |
Author: 宋鸽 |
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Description: 用FPGA实现的JPEG编码器，可以直接使用，内含完成说明文档，经过验证无误。-• JPEG baseline encoding JPEG ITU-T T.81 | ISO/IEC 10918-1
• Standard JFIF header v 1.01 automatic generation
• Color images only (3 components, RGB 24 or 16 bit, YUV input)
• Two programmable Quantization tables
• Hardcoded Huffman tables (luminance and chrominance)
• 2.3 to 2.7 clock cycles per one input 24 bit pixel @ 50 Quality
• OPB programming and data Host interface
• 4:2:2 subsampling
• Source code target independent, synthesizable RTL VHDL code
• Detailed documentation
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Description: ITU-T G.729A标准源代码解码端，已创建工程文件，方便初学入门者，已测试，运行良好-ITU-T G.729A-ITU-T G.729A standard source code decoder side, the project file has been created to facilitate the beginner beginners, have been tested and run well-ITU-T G.729A
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Size: 120832 |
Author: kgd815 |
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Description: ITU-T G.729A标准源代码编码端，已创建工程文件，方便初学入门者.-ITU-T G.729A standard source coding side, create a project file, easy beginner beginners
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Size: 91136 |
Author: kgd815 |
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Description: X.509标准是ITU-T设计的PKI标准，它是为了解决X.500目录中的身份鉴别和访问控制问题而设计的。本书中定义的组建与X.509是基本一致的。
在X.509标准的早期版本中，除了最基本的组件——CA、证书持有者和依赖方外，只涉及了资料库。由于X.509标准是为X.500目录服务的，所以，资料库的形式就是X.500目录。在后来的X.509标准版本中，又增加了CRL Issuer组件。
在X.509标准中，使用大量的篇幅来定义证书和CRL的数据格式。目前，使用最广泛、最成功的证书和CRL格式，都是X.509标准定义的格式。-The X.509 standard PKI standards of ITU-T, it is designed to solve the problem of the X.500 directory authentication and access control. The book definition of the formation of X.509 is basically the same. In an earlier version of the X.509 standard, in addition to the most basic components- CA, the certificate holder and dependent parties themselves, relate only to the database. The X.509 standard is the X.500 directory service, so the database in the form of an X.500 directory. X.509 standard version later added to the CRL Issuer components. In the X.509 standard, a lot of space to define the certificate and CRL data format. At present, the most widely used and most successful of the certificate and CRL formats are X.509 standard defines the format.
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Author: 萧十一 |
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Description: ITU-T P.862的源码。PESQ算法-source codes of ITU-T P.862 PESQ
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Size: 38912 |
Author: Vileng |
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Description: ITU-T G.729标准源代码编码端，已创建工程文件，方便初学入门者，已测试，运行良好-ITU-T G.729 standard source code encoding end, create a project file for easy beginner beginners and have been tested to work well
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Size: 83968 |
Author: academic |
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Description: G.711是一种由国际电信联盟（ITU-T）订定音频编码方式，又称为ITU-T G.711。 主要用于音频的编解码。-G.711
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Author: alexhome |
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Description: Draft 8 of High efficiency video coding (HEVC), 10th Meeting: Stockholm, SE, 11–20 July 2012, by Joint Collaborative Team on Video Coding (JCT-VC)
of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11. Document: JCTVC-J1003_d7
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Size: 1720320 |
Author: annderson |
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Description: Draft 7 of High efficiency video coding (HEVC), 9th Meeting: Geneva, CH, 27 April – 7 May 2012, by Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11. Document: JCTVC-I1003_d9
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Size: 1790976 |
Author: annderson |
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Description: HM6 of High Efficiency Video Coding (HEVC), Test Model 6 Encoder Description, 8th Meeting: San José, CA, USA, 1–10 February, 2012, by Joint Collaborative Team on Video Coding (JCT-VC)
of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11. Document: JCTVC-H1002.
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Size: 618496 |
Author: annderson |
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Description: HM7 of High Efficiency Video Coding (HEVC), Test Model 7 Encoder Description, 9th Meeting: Geneva, CH, 27 April – 7 May 2012, by Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11. Document: JCTVC-I1002.
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Author: annderson |
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Description: HM5 of High Efficiency Video Coding (HEVC), Test Model 5 Encoder Description, 7th Meeting: Geneva, CH, 21-30 November, 2011, by Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11. Document: JCTVC-G1102, WG11 Number: N12345.
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Size: 562176 |
Author: annderson |
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Description: G.720.1是ITU-T最新制定的语音标准，其主要包括活动话音检测、语音和噪声分类功能，可以适用与宽带和窄带语音。-G.720.1 is a newly developed speech standard ITU-T, which mainly includes a voice activity detection, voice and noise classification function can be applied with both broadband and narrowband voice.
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Author: 张勇 |
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Description: H.264，同时也是MPEG-4第十部分，是由ITU-T视频编码专家组（VCEG）和ISO/IEC动态图像专家组（MPEG）联合组成的联合视频组（JVT，Joint Video Team）提出的高度压缩数字视频编解码器标准。H.264是ITU-T以H.26x系列为名称命名的标准之一，同时AVC是ISO/IEC MPEG一方的称呼。这个标准通常被称之为H.264/AVC（或者AVC/H.264或者H.264/MPEG-4 AVC或MPEG-4/H.264 AVC）而明确的说明它两方面的开发-H.264, also the tenth part of MPEG-4, ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG) coalition Joint Video Team (JVT, Joint Video Team) the height of the compressed digital video codec standard. H.264 is an ITU-T standard one name H.26x series AVC ISO/IEC MPEG party called. This standard is usually called the H.264/AVC (or AVC/H.264 or H.264/MPEG-4 AVC or MPEG-4/H.264 AVC), and a clear description of the development of both
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Author: 石大 |
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