I need to play a video file with ffplay in fullscreen mode. The original file has 720x576 resolution, my display is at 1920x1080.
When I launch ffplay as
ffplay "filename.avi" and upscale it by maximizing its window, the resulting video looks pixelated. I think this is related to default image scaling algorithm used by ffplay.
When I launch it as
ffplay "filename.avi" -vf scale=1920x1080:sws_flags=lanczos+accurate_rnd+full_chroma_int+full_chroma_inp and maximize the window, the result looks much better (anti-aliased, smooth edges), but CPU usage is at 25%.
At the same time, when I watch the same video in Windows Media Player, the result is as good as when upscaling the video in ffplay, but CPU usage is less than 5%.
How can I achieve the same result with ffplay?
Maybe it's because Windows Media Player upscales the video with GPU? If so, can ffplay use GPU too?
UPD: Does https://stackoverflow.com/questions/29037324/ffmpeg-frame-to-directx-surface-hardware-accelerated have something in common to my question?