!!!!!!!!!!!!!!!!!!!!!!decode err 23!!!!!!!!!!!!!!!!!!!!!! when run in GPU mode

[efflorez]

Hello , thanks for share ur code , i chnaged m_eDecodeMode = VideoDecode::GPU; when i try to run the code it shows (!!!!!!!!!!!!!!!!!!!!!!decode err 23!!!!!!!!!!!!!!!!!!!!!! ) and in CPU the window open but looks black , i used :
ffmpeg n4.1
opencv 3.4.6
do you have any update ?