What is the optimal streaming setup for SD (480p)?

Video Codec: H.264 Profile: High, if not available: Main Level: 3.1 Keyframe interval: 2 seconds Frame rate: 25 fps in full frames (25p) Output: 854 x 480 Bitrate 500 kbit/s - 2,000 kbit/s Audio: AAC or MP3, stereo, 44.100 kHz, 96 kbps without commentary, 128 kbps with commentary Note: please do not send an interlaced signal (720i)