Basic video app with OpenGL and libva

Douglas A 7dc96c7128 (git): add .vscode to .gitignore 3 éve
lib 09d252f672 (ffmpeg): add libav for decoding video frames 3 éve
src 77690bd146 (fix): fix some issues when bliting the surface 3 éve
.gitignore 7dc96c7128 (git): add .vscode to .gitignore 3 éve
.gitmodules 71ba2c413c initial: boilerplate repository items 3 éve
CMakeLists.txt 09d252f672 (ffmpeg): add libav for decoding video frames 3 éve
README.md 71ba2c413c initial: boilerplate repository items 3 éve

README.md