## MMPM/2 Device Driver Reference

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### General Stream Control Escape - 70H

This escape is used to imbed control information in the stream. It is followed by a single byte value containing the control information.

Stream control byte values

Set stream interpretation mode 0 - 00H

Stream interpretation mode 0 block header quadrant decomposition cases:

1.00: Unchanged quadrant

2.01: Homogenous/shallow LTC quadrant

3.10: Luminance transition coding (LTC) quadrant

4.11: Statistical/extended LTC quadrant

Set stream interpretation mode 1 - 01H

Stream interpretation mode 1 block header quadrant decomposition cases:

1.00: Unchanged quadrant

2.01: Homogenous/shallow LTC quadrant

3.10: Subsampled 4-luminance quadrant

4.11: 16-luminance quadrant