I had a H264+AAC stream sent to a Wowza server and transrated into three streams (using Wowza's transcoder addon), which were: 1264kbps, 564kbps, and 164kbps.
During playback on the client (flash player) we noticed:
1) Bandwidth would peak to ~5000kbps. When the video was sending a still screen, such as a slide, it would lower to ~500kbps; otherwise it would rise back up to the ~5000kbps range.
2) When we apply a bandwidth limiter on the client (flash player) PC, and cap the bandwidth to 2000kbps we would get buffering every ten to twenty seconds even though this is well above the highest stream's bitrate.
Would someone please help point me in the right direction to fix these behaviors?