inpilen的专栏

ffmpeg命令笔记1. 生成fmp4: ffmpeg -i a.mp4 -vcodec copy -f mp4 -movflags frag_keyframe+empty_moov -codec copy b.mp42.

D3D进行视频等比缩放渲染，主要使用StretchRect函数，关键代码如下 int srcW = 352, srcH = 288, dstW = 800, dstH = 600; int dw = 0, dh = 0, dx = 0, dy = 0; float x = 0, y = 0; x = ( float )dstW / ( float )srcW; //...