MPEG2 Specifications
from Steve Mullen





The three High Profile standards are for production, not distribution - think of them as a competitor to Motion JPEG. For example, MXF uses High Profile for 4:2:2.  Lower frame rates are supported, but not arbitrary frame rates. You're looking at 24p, 25p, 30p, 50p, 50i, 60p, and 60i.  As well, 0.1% lower variants for NTSC of 23.976, 29.97, and 59.94.
NameMax Data RateResolutionColor SamplingNotes
MP@ML
(Main Profile@Main Level)
15Mbps720x480, 30fps4:2:0SD/NTSC used for DVDs
MP@HL1440
(Main Profile@High 1440 Level)
60Mbps, but currently limited to 25Mbps to fit on DV tape1080i with 1440 pixels/line at [up to] 30fps, 1080p with 1440 pixels/line at [up to] 30fps4:2:0Pretty much Consumer HDV, except that HDV limits its progressive to only 1280x720. Rumored to be what DirecTV uses. And cable/DBS systems who CBS would NOT allow to carry their 1080i programming!

JVC might use this for the HD7000, in which case it would be an 4:2:0 HDV camcorder. The data rate could be increased to 50Mbps for far less compression artifacts.
MP@HL
(Main Profile@High Level)
60Mbps1920x1080 at 30 frames/sec OR 1280x720 at [up to] 60fps4:2:0Looks like what ATSC 1080i and 720p60 are, but they limit to 19Mbps to fit in their alotted 6MHz channel bandwidth.
422P@ML
(High Profile@Main Level / 4:2:2Profile@Main Level)
20Mbps720x480 at [up to] 60fps4:2:2Perhaps an ATSC SD format?
422P@H1440L
(High Profile@High 1440 Level / 4:2:2 Profile@High 1440 Level)
80Mbps1080i with 1440 pixels/line at [up to] 30fps, 720p at [up to] 60 fps4:2:2This may be what Sony will use for HDV2-- XDCAM IMX HD. Even HDCAM only does 1440x1080. Hopefully HDV+ will use this as well.
422P@HL
(High Profile@High Level / 4:2:2 Profile@High Level)
100Mbps1080i with 1920 pixels/line at [up to] 30fps, or 1080p with 1920 pixels/line at [up to] 60fps (!)4:2:2Sony has talked about 1080p. I don't think we'll see this for several years.


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