用VC++开发的视屏会议软件Demo版,对Mpeg-4压缩技术和传输技术很成熟,对H.323协议的写法值得借鉴-development of the VC conferencing software Demo screen version the MPEG-4 compression technology and transmission technology is very mature and H.323 should draw on the wording

Draw Straight Line any degr-Draw Straight Line any degree

FFmpeg读取MP4并且利用SDL进行绘制显示(FFmpeg reads MP4 and uses SDL to draw the display)