使用directshow来进行mpeg

经典的带内音频dtmf产生和检测的c语言源码，检测准确率相当高-classic band audio DTMF generation and detection of c-source language, detection accuracy rate is very high

使用directshow来进行mpeg-4的视频传输，网络传输使用rtp协议-directshow to use MPEG-4 video transmission, the use of network transmission agreement rtp

H323协议的Windows实现，开源代码，可直接使用。-Windows realize H323 protocol, open source code, can be used directly.

点对点视频会议程序:VideoNet 该程序可以用于两个人在LAN/Intranet(或者Internet)上进行视频会议。现在有许多视频会议程序，每个都有各自的性能提升技术。主要的问题是视频会议视频帧的尺寸对于传输来说太大。因此，性能依赖于对帧的编解码-point-to-point video conferencing : VideoNet the two procedures can be used in LAN/Intranet (or Intern et) on video conferencing. Now there are many video conference proceedings, each have their own performance enhancements. The main problem is video conferencing video frame size too large for transmission. Therefore, the performance depends on the right frame codec

H.323规范的一部分，规定的信令部分的控制，是开发H.323不可缺少的文档。-part of the H.323 standard, signaling the part of the control, development of H.323 is an indispensable document.

网络电话。采用GSM语音格式，2.2KB/s的数据流量，支持HTTP, Socks4/5单一代理或二者同时代理。本版本修复了以前版本的一些小问题，增加了动态调整延时，打开、关闭话筒和声音，保存和自动加载通话地址列表，代理服务器列表，使用全部或部分本机地址开机-telephone network. GSM voice format, 2.2KB/s data traffic, supports HTTP, Socks4/5 of a single agent or combination of both agents. This version fixes previous versions of some small problem, the dynamic adjustment of delay, opening, closing and microphone voice, preservation and automatically load calls address list, the proxy list, the use of all or part of the machine addresses boot

jpeg视频编解码程序，包括dct变换、量化、vlc等过程，针对视频压缩-jpeg video codec procedures, including Extra transform, quantization, VLC and so on, for video compression

基于osip开发的ip电话-based on the development of the telephone ip

nettalk,个人觉得非常不错的网络电话，集成视频，声音和文本聊天。提供源码，大家共同学习

IP电话编程-IP telephone programs