DecodingContext (JCodec 0.2.3 API)

java.lang.Object
- org.jcodec.codecs.vpx.vp9.DecodingContext

```
public class DecodingContext
extends Object
```
This class is part of JCodec ( www.jcodec.org ) This software is distributed under FreeBSD License

Author:

The JCodec project

Constructor Summary

Constructors
Constructor and Description

DecodingContext()

Constructors
Constructor and Description
`DecodingContext()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static DecodingContext`	`createFromHeaders(ByteBuffer bb)` Reads VP9 frame headers and creates the decoding context
`long[]`	`getAbove4x4MVs()`
`boolean[]`	`getAboveCompound()`
`int[]`	`getAboveInterpFilters()`
`int[]`	`getAboveIntraModes()`
`long[][]`	`getAboveLeftMVs()`
`int[]`	`getAboveLumaModes()`
`long[][]`	`getAboveMVs()`
`int[][]`	`getAboveNonzeroContext()`
`int[]`	`getAbovePartitionSizes()`
`boolean[]`	`getAboveSegIdPredicted()`
`int`	`getBitDepth()`
`int`	`getCompFixedRef()`
`int`	`getCompVarRef(int i)`
`int`	`getInterpFilter()`
`long[]`	`getLeft4x4MVs()`
`boolean[]`	`getLeftCompound()`
`int[]`	`getLeftInterpFilters()`
`int[]`	`getLeftIntraModes()`
`int[]`	`getLeftLumaModes()`
`long[][]`	`getLeftMVs()`
`int[][]`	`getLeftNonzeroContext()`
`int[]`	`getLeftPartitionSizes()`
`boolean[]`	`getLeftSegIdPredicted()`
`int`	`getMiFrameHeight()`
`int`	`getMiFrameWidth()`
`long[][]`	`getPrevFrameMv()`
`int[][]`	`getPrevSegmentIds()`
`int`	`getRefMode()`
`int[][][]`	`getRefs()`
`int[]`	`getScan(int plane, int txSz, int blockIdx)`
`int`	`getSegmentFeature(int segmentId, int segLvlRefFrame)`
`boolean[][]`	`getSkippedBlockes()`
`int`	`getSubX()`
`int`	`getSubY()`
`int`	`getTileHeight()`
`int`	`getTileStart()`
`int`	`getTileWidth()`
`int[]`	`getTokenCache()`
`int`	`getTxMode()`
`int[][]`	`getTxSizes()`
`int`	`getTxType(int plane, int txSz, int blockIdx)`
`boolean`	`isAllowHpMv()`
`boolean`	`isKeyIntraFrame()`
`boolean`	`isSegmentationEnabled()`
`boolean`	`isSegmentFeatureActive(int segmentId, int segLvlSkip)`
`boolean`	`isSegmentMapConditionalUpdate()`
`boolean`	`isUpdateSegmentMap()`
`boolean`	`isUsePrevFrameMvs()`
`int`	`refFrameSignBias(int fixedRef)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- DecodingContext
```
public DecodingContext()
```

Method Detail

createFromHeaders
```
public static DecodingContext createFromHeaders(ByteBuffer bb)
```
Reads VP9 frame headers and creates the decoding context

Parameters:

bb - ByteBuffer with the encoded frame, after the call to this function the header portion of this buffer will be read and the byte buffer will be pointing at the first compressed frame byte after the headers.

Returns:

Initialized DecodingContext object that can be used for decoding the compressed VP9 frame.

isKeyIntraFrame
```
public boolean isKeyIntraFrame()
```

isSegmentationEnabled

public boolean isSegmentationEnabled()

isUpdateSegmentMap
```
public boolean isUpdateSegmentMap()
```

isSegmentFeatureActive

public boolean isSegmentFeatureActive(int segmentId,
                                      int segLvlSkip)

isSegmentMapConditionalUpdate

public boolean isSegmentMapConditionalUpdate()

getSegmentFeature

public int getSegmentFeature(int segmentId,
                             int segLvlRefFrame)

getCompFixedRef
```
public int getCompFixedRef()
```

refFrameSignBias

public int refFrameSignBias(int fixedRef)

getInterpFilter
```
public int getInterpFilter()
```

getRefMode
```
public int getRefMode()
```

getLeftMVs
```
public long[][] getLeftMVs()
```

getAboveMVs
```
public long[][] getAboveMVs()
```

getAboveLeftMVs
```
public long[][] getAboveLeftMVs()
```

getLeft4x4MVs
```
public long[] getLeft4x4MVs()
```

getAbove4x4MVs
```
public long[] getAbove4x4MVs()
```

getAboveCompound
```
public boolean[] getAboveCompound()
```

getLeftCompound
```
public boolean[] getLeftCompound()
```

getRefs
```
public int[][][] getRefs()
```

isAllowHpMv
```
public boolean isAllowHpMv()
```

isUsePrevFrameMvs
```
public boolean isUsePrevFrameMvs()
```

getPrevFrameMv
```
public long[][] getPrevFrameMv()
```

getMiFrameHeight
```
public int getMiFrameHeight()
```

getMiFrameWidth
```
public int getMiFrameWidth()
```

getTileStart
```
public int getTileStart()
```

getLeftInterpFilters
```
public int[] getLeftInterpFilters()
```

getAboveInterpFilters
```
public int[] getAboveInterpFilters()
```

getLeftLumaModes
```
public int[] getLeftLumaModes()
```

getAboveLumaModes
```
public int[] getAboveLumaModes()
```

getTileHeight
```
public int getTileHeight()
```

getTileWidth
```
public int getTileWidth()
```

getCompVarRef
```
public int getCompVarRef(int i)
```

getAboveIntraModes
```
public int[] getAboveIntraModes()
```

getLeftIntraModes
```
public int[] getLeftIntraModes()
```

getTxMode
```
public int getTxMode()
```

getTxSizes
```
public int[][] getTxSizes()
```

getSkippedBlockes

public boolean[][] getSkippedBlockes()

getAboveSegIdPredicted

public boolean[] getAboveSegIdPredicted()

getLeftSegIdPredicted

public boolean[] getLeftSegIdPredicted()

getPrevSegmentIds
```
public int[][] getPrevSegmentIds()
```

getSubX
```
public int getSubX()
```

getSubY
```
public int getSubY()
```

getScan

public int[] getScan(int plane,
                     int txSz,
                     int blockIdx)

getTxType

public int getTxType(int plane,
                     int txSz,
                     int blockIdx)

getBitDepth
```
public int getBitDepth()
```

getAboveNonzeroContext

public int[][] getAboveNonzeroContext()

getLeftNonzeroContext

public int[][] getLeftNonzeroContext()

getTokenCache
```
public int[] getTokenCache()
```

getLeftPartitionSizes
```
public int[] getLeftPartitionSizes()
```

getAbovePartitionSizes
```
public int[] getAbovePartitionSizes()
```

Class DecodingContext

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DecodingContext

Method Detail

createFromHeaders

isKeyIntraFrame

isSegmentationEnabled

isUpdateSegmentMap

isSegmentFeatureActive

isSegmentMapConditionalUpdate

getSegmentFeature

getCompFixedRef

refFrameSignBias

getInterpFilter

getRefMode

getLeftMVs

getAboveMVs

getAboveLeftMVs

getLeft4x4MVs

getAbove4x4MVs

getAboveCompound

getLeftCompound

getRefs

isAllowHpMv

isUsePrevFrameMvs

getPrevFrameMv

getMiFrameHeight

getMiFrameWidth

getTileStart

getLeftInterpFilters

getAboveInterpFilters

getLeftLumaModes

getAboveLumaModes

getTileHeight

getTileWidth

getCompVarRef

getAboveIntraModes

getLeftIntraModes

getTxMode

getTxSizes

getSkippedBlockes

getAboveSegIdPredicted

getLeftSegIdPredicted

getPrevSegmentIds

getSubX

getSubY

getScan

getTxType

getBitDepth

getAboveNonzeroContext

getLeftNonzeroContext

getTokenCache

getLeftPartitionSizes

getAbovePartitionSizes