I am sending H264 over RTP, using my own code (encoder). I am sending the key frame every 2 seconds (complete access unit composed of SPS/PPS/IDR-slices, etc.).
I am using VLC to play the stream out of Wowza but note the same behavior using the Wowza web players: just about every 2 seconds I am seeing the screen partially go black and then resync itself. I also get a significant amount of pixelation during this time.
Is there something that I should be aware of that would cause the key frame to do this?