I tried to play MP4 file with SimplePlayer (UMC/IPP Sample application).
MP4 has H.264 video track (640*480) and AAC audio track(2 channels, 16 bit, 44100 Hz)
I used OpenGL video render.
Everything was fine, but CPU load was about 10%.
When I played this file with usual Windows Media Player, CPU load became 1-2%.
I don't understand why IPP sample performance was so slow.
Is my error in settings, or general problem with H.264?