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3.3.8.2 RemoteFX Progressive Codec Compression

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The functional stages involved in the decoding path are illustrated in the following figure. Compared to the encoding stages, the decoding stage operations are the operations of the encoding stage in reverse order.

RemoteFX Progressive Codec decoding stages

Figure 5: RemoteFX Progressive Codec decoding stages

When compared to [MS-RDPRFX] section 3.1.8.2, the codec now maintains state. "Current frame" contains the DWT coefficients of the tiles, and "Persistent progressive state" is used to maintain information pertinent to tiles that have been received in progressive chunks.