QVidium QVMP2C-1011 - Manual (Page 42)

User’s Manual v.28 QVidium™ MPEG2+4 Codec
42 of 45 - Copyright 2007-2008 QVidium™ Technologies, Inc.
Half Frame Rate Minimum MPEG-2 PS bitrates for MPEG-4(SP) Encoding:
• 1.16 Mbps for 720x480 video resolution
• 769 Kbps for 480x480 video resolution
• 564 Kbps for 352x480 video resolution
• 282 Kbps for 352x240 video resolution
• 256 Kbps for 320x240 video resolution
Absolute Minimum Allowable MPEG-2 bitrate is 143 Kbps (1/3 frame rate & lower)
Note: Video quality is content dependent and at minimum bitrates may not produce
acceptable video for a given application. For bitrates under 1.5 Mbps, as a general
rule we suggest that you use MPEG-4 encoding for best video quality.
Codec (Bi-Directional) Bitrate Limits
Bitrate limits related to simultaneously sending and receiving a MPEG-2 Transport Stream
video to and from the network.
Maximum MPEG-2 Transport Stream bitrates:
• 3.0 Mbps with ProMPEG FEC
• 4.5 Mbps with UDP, RTP or ARQ