Grass Valley Profile XP Aug 16 2004 - Manual (Page 191)

Using multiple video tracks for one channel
23 July 2004 Profile XP System Guide 191
4. Select a video quality preset for the new track using the video quality list box. (This
setting is not applicable for DVCPRO 25, DVCPRO 50, or MPEG D10 channels.)
All video quality settings are shown in the following table. See “Selecting video
quality for a channel” on page 158
for guidelines on selecting video quality presets.
Quality Preset MPEG-2 Data
rate in Mbps
(Standard Def) MPEG-2 Data
rate in Mbps
(High Def) Chrominance
Sampling
Method Group of Pictures (GoP)
Draft 4 4:2:0 *
* Video recorded at 4:2:0 on the Video Processor board (PVS1100, PVS3000, and PVS3500) begins at line 23, and so
does not include VBI information such as VITC in the compressed video.
IBBPBBPBBPBBPBBP (PVS1000)
IBPBPBPBPBPB (PVS1100, PVS3000,
PVS3500)
Low 8 30
Medium (default) 15 50 4:2:2 (4:2:0
only in HD)
High 24 80
Custom 1 to 4 4-50 in
increments of 4
(12 default) 4:2:2 (default)
or 4:2:0 Choose from I, IP, IBP, IBBP, IBPBP,
IBBPBBP, IBPBPBPBP,
IBBPBBPBBP, IBBPBBPBBPBBP, and
IBBPBBPBBPBBPBBP(PVS1000), or
I, IP, IBPB, IBPBPB, IBPBPBPB,
IBPBPBPBPB, and IBPBPBPBPBPB
(PVS1100, PVS3000, PVS3500)