Remote access encoding

1. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames,

determining whether the current block is a static block, by determining that the current block is a static block on a condition that a difference between the current block and a corresponding raw reference block does not exceed a threshold and determining that the current block is not a static block on a condition that the difference between the current block and the raw reference block exceeds the threshold, wherein determining that the current block is a static block includes associating the current block with a zero motion vector,

determining a coding quality for encoding the current block, and

determining whether to encode the current block as a skipped block; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.

2. The method of claim 1 , wherein determining whether the current block is a static block includes determining whether the current block includes static content.

3. The method of claim 1 , wherein the raw reference block is one of a plurality of blocks in a raw reference frame, and wherein a position of the raw reference block in the raw reference frame corresponds with a position of the current block in the current frame offset by information indicating movement of a window in the operating environment, and wherein determining that the current block is a static block includes associating the current block with a non-zero motion vector.

4. The method of claim 1 , wherein determining the coding quality for encoding the current block includes determining that the encoding quality is high quality on a condition that the current block is a static block.

5. The method of claim 1 , wherein determining whether to encode the current block as a skipped block includes encoding the current block as a skipped block and indicating that the skipped block is a high quality block on a condition that a reference block for encoding the current block is a high quality reference block and the current block is a static block.

6. The method of claim 1 , wherein determining whether to encode the current block as a skipped block includes encoding the current block as a skipped block and indicating that the skipped block is a low quality block on a condition that a reference block for encoding the current block is a low quality reference block and the current block is a static block.

7. The method of claim 1 , wherein determining whether to encode the current block as a skipped block includes determining whether a reference block for encoding the current block is a high quality reference block.

8. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames

determining whether the current block is a static block,

determining a coding quality for encoding the current block, wherein determining the coding quality for encoding the current block includes determining that the encoding quality is high quality on a condition that the current block includes a portion of a topmost window of the operating environment, and

determining whether to encode the current block as a skipped block; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.

9. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames

determining whether the current block is a static block,

determining a coding quality for encoding the current block, wherein determining the coding quality for encoding the current block includes determining that the encoding quality is high quality on a condition that the current block includes a portion of a recently in-focus window of the operating environment, and

determining whether to encode the current block as a skipped block; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.

10. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames

determining whether the current block is a static block,

determining a coding quality for encoding the current block, wherein determining the coding quality for encoding the current block includes determining that the encoding quality is high quality on a condition that the current block includes a portion of a frequently in-focus window of the operating environment, and

determining whether to encode the current block as a skipped block; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.

11. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames

determining whether the current block is a static block,

determining a coding quality for encoding the current block, and

determining whether to encode the current block as a skipped block, wherein

determining whether to encode the current block as a skipped block includes determining whether a reference block for encoding the current block is a high quality reference block, and

wherein determining whether the reference block is a high quality reference block includes determining whether the reference block was encoded using high quality encoding based on a difference between a reference frame and a corresponding reconstructed frame, wherein the reference block is one of a plurality of blocks from the reference frame; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.

12. The method of claim 11 , wherein determining whether the reference block was encoded using high quality encoding includes determining a sum of absolute differences in a transform domain or a spatial domain between the reference frame and the corresponding reconstructed frame, such that the reference block was encoded using high quality encoding on a condition that the sum of absolute differences does not exceed a threshold, and the reference block was encoded using low quality encoding on a condition that the sum of absolute differences exceeds the threshold.

13. The method of claim 11 , wherein determining whether the reference block is a high quality reference block includes:

determining that the reference block is a high quality reference block on a condition that the reference block was encoded using high quality encoding and is aligned with a block boundary;

determining that the reference block is a high quality reference block on a condition that the reference block overlaps with a plurality of blocks that were encoded using high quality encoding; and

determining that the reference block is a low quality reference block on a condition that the reference block overlaps with a block that was encoded using low quality encoding.

14. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames,

identifying a reference block from a plurality of blocks in a reference frame,

determining whether the current block is a static block, wherein determining whether the current block is a static block includes at least one of determining that the current block is a static block and associating the current block with a zero motion vector, on a condition that a difference between the current block and a corresponding raw reference block does not exceed a threshold, wherein the reference block is a decoded block based on the raw reference block, determining that the current block is a static block and associating the current block with a non-zero motion vector, on a condition that a difference between the current block and a corresponding raw reference block does not exceed a threshold, wherein the raw reference block is one of a plurality of blocks in a raw reference frame, and wherein a position of the raw reference block in the raw reference frame corresponds with a position of the current block in the current frame offset by information indicating movement of a window in the operating environment, or determining that the current block is not a static block on a condition that the difference between the current block and the raw reference block exceeds the threshold,

on a condition that the reference block is a high quality reference block and the current block is a static block, encoding the current block as a skipped block and indicating that the skipped block is a high quality block, and

on a condition that the reference block is a low quality reference block and the current block is a static block, encoding the current block as a skipped block and indicating that the skipped block is a low quality block; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.

15. The method of claim 14 , wherein determining whether the current block is a static block includes determining whether the current block includes static content.

16. The method of claim 14 , wherein generating the encoded block includes determining whether the reference block is a high quality reference block.

17. A method of remote access encoding, the method comprising:

receiving, at a host device, from a client device, a remote access request indicating a portion of a display area of an operating environment of the host device;

rendering a representation of the portion of the display area, wherein rendering includes generating rendered content including a plurality of frames;

generating an encoded block by:

identifying a current block from a plurality of blocks in a current frame, wherein the current frame is one of the plurality of frames,

identifying a reference block from a plurality of blocks in a reference frame,

determining whether the reference block is a high quality reference block, wherein determining whether the reference block is a high quality reference block includes at least one of determining whether the reference block was encoded using high quality encoding based on a difference between the reference frame and a corresponding reconstructed frame, determining that the reference block is a high quality reference block on a condition that the reference block was encoded using high quality encoding and is aligned with a block boundary, determining that the reference block is a high quality reference block on a condition that the reference block overlaps with a plurality of blocks that were encoded using high quality encoding, or determining that the reference block is a low quality reference block on a condition that the reference block overlaps with a block that was encoded using low quality encoding,

on a condition that the reference block is a high quality reference block and the current block is a static block, encoding the current block as a skipped block and indicating that the skipped block is a high quality block, and

on a condition that the reference block is a low quality reference block and the current block is a static block, encoding the current block as a skipped block and indicating that the skipped block is a low quality block; and

transmitting encoded content to the client device, wherein the encoded content includes the encoded block.