MediaStreamer2

• 授权协议: GPL
• 开发语言: C/C++
• 操作系统: 跨平台
• 软件首页: http://www.linphone.org/index.php/eng/code_review/mediastreamer2
• 软件文档: http://download.savannah.gnu.org/releases-noredirect/linphone/mediastreamer/doc/modules.html

软件介绍

Mediastreamer2 是一个支持多种平台的轻量级的流技术引擎，主要适合于开发语音和视频电话应用程序。该引擎主要为 linphone 的多媒体流的收发，包括语音和视频的捕获、编码解码以及渲染。

主要功能：

• Read/Write from to an alsa device, an oss device, a windows waveapi device
• Send and receive RTP packets
• Encode and decode the following formats: speex, G711, GSM, H263, theora, iLBC, MPEG4, and H264.
• Read and write from/to a wav file
• Read YUV pictures from a webcam (provided that it has video4linux v1 or v2 driver)
• Display YUV pictures (using SDL library or native apis on windows)
• Dual tones generation
• Echo cancelation, using the extraordinary echo canceler algorithm from the speex library
• Audio conferencing
• Audio parametric equalizer using a FIR filter
• Volume control, automatic gain control

Mediastreamer2  可通过插件进行扩展，当前提供了 H264 和 ILBC 编码器插件。

获取源码：git clone git://git.linphone.org/mediastreamer2.git

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