Mpeg4 HD Specs
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MPEG-4 Video supports :
* as Scanning Methods : progressive and interlaced.
* as Luminance Spatial Resolutions : arbitrary sizes from 8*8 to 2048*2048, e.g. SQSIF/SQCIF, QSIF/QCIF, SIF/CIF, 4*SIF/CIF, and CCIR 601.
* as Color Spaces : monochrome, Y, Cr, Cb, combined with an Alpha Channel (of same size as Y data).
* as Chrominance Spatial Resolutions : 4:0:0, 4:2:0, 4:2:2.
* as Temporal Resolutions : various resolutions with as maximum the capture rate. The frame rate shall be continuously variable, on a frame-by-frame basis.
These supported formats are given by the Requirements Group, and may still change in the future.
MPEG-4 Video is optimized for :
* low (<64 kbps),
* intermediate (64-384kbps), and
* high (384-4Mbps) bitrates.
It shall support both constant bitrate (CBR) and variable bitrate (VBR).
These supported bitrates modes are given by the Requirements Group, and may still change in the future.
* as Scanning Methods : progressive and interlaced.
* as Luminance Spatial Resolutions : arbitrary sizes from 8*8 to 2048*2048, e.g. SQSIF/SQCIF, QSIF/QCIF, SIF/CIF, 4*SIF/CIF, and CCIR 601.
* as Color Spaces : monochrome, Y, Cr, Cb, combined with an Alpha Channel (of same size as Y data).
* as Chrominance Spatial Resolutions : 4:0:0, 4:2:0, 4:2:2.
* as Temporal Resolutions : various resolutions with as maximum the capture rate. The frame rate shall be continuously variable, on a frame-by-frame basis.
These supported formats are given by the Requirements Group, and may still change in the future.
MPEG-4 Video is optimized for :
* low (<64 kbps),
* intermediate (64-384kbps), and
* high (384-4Mbps) bitrates.
It shall support both constant bitrate (CBR) and variable bitrate (VBR).
These supported bitrates modes are given by the Requirements Group, and may still change in the future.
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