vs2008环境下编写的基于ffmpeg的H264帧的生成代码，可以完成yuv420和rgb24到H264帧 的转换，并附有图片可供验证，生成的H264帧可以用elecard软件查看。-prepared under the vs2008 environment based on ffmpeg H264 fr a mes generated code can be completed the conversion of yuv420 and rgb24 H264 fr a me with pi