Basic video app with OpenGL and libva

Douglas A 1cfa3660b4 (refactor): move load_frame into decoder class %!s(int64=3) %!d(string=hai) anos
lib 09d252f672 (ffmpeg): add libav for decoding video frames %!s(int64=3) %!d(string=hai) anos
src 1cfa3660b4 (refactor): move load_frame into decoder class %!s(int64=3) %!d(string=hai) anos
.gitignore 7dc96c7128 (git): add .vscode to .gitignore %!s(int64=3) %!d(string=hai) anos
.gitmodules 71ba2c413c initial: boilerplate repository items %!s(int64=3) %!d(string=hai) anos
CMakeLists.txt 1cfa3660b4 (refactor): move load_frame into decoder class %!s(int64=3) %!d(string=hai) anos
README.md 71ba2c413c initial: boilerplate repository items %!s(int64=3) %!d(string=hai) anos

README.md