java.lang.Object
- com.google.android.exoplayer2.decoder.CryptoInfo

```
public final class CryptoInfo
extends Object
```
Metadata describing the structure of an encrypted input sample.
This class is a compatibility wrapper for MediaCodec.CryptoInfo.

Field Summary

Fields
Modifier and Type	Field	Description
`int`	`clearBlocks`
`int`	`encryptedBlocks`
`byte[]`	`iv`	The 16 byte initialization vector.
`byte[]`	`key`	The 16 byte key id.
`@com.google.android.exoplayer2.C.CryptoMode int`	`mode`	The type of encryption that has been applied.
`int[]`	`numBytesOfClearData`	The number of leading unencrypted bytes in each sub-sample.
`int[]`	`numBytesOfEncryptedData`	The number of trailing encrypted bytes in each sub-sample.
`int`	`numSubSamples`	The number of subSamples that make up the buffer's contents.

Constructor Summary

Constructors
Constructor Description

CryptoInfo()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`MediaCodec.CryptoInfo`	`getFrameworkCryptoInfo()`	Returns an equivalent `MediaCodec.CryptoInfo` instance.
`void`	`increaseClearDataFirstSubSampleBy(int count)`	Increases the number of clear data for the first sub sample by `count`.
`void`	`set(int numSubSamples, int[] numBytesOfClearData, int[] numBytesOfEncryptedData, byte[] key, byte[] iv, @com.google.android.exoplayer2.C.CryptoMode int mode, int encryptedBlocks, int clearBlocks)`

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

- Field Detail
  - iv
```
@Nullable
public byte[] iv
```
    The 16 byte initialization vector. If the initialization vector of the content is shorter than 16 bytes, 0 byte padding is appended to extend the vector to the required 16 byte length.
    
    See Also:
    
    MediaCodec.CryptoInfo.iv
  - key
```
@Nullable
public byte[] key
```
    The 16 byte key id.
    
    See Also:
    
    MediaCodec.CryptoInfo.key
  - mode
```
public @com.google.android.exoplayer2.C.CryptoMode int mode
```
    The type of encryption that has been applied. Must be one of the C.CryptoMode values.
    
    See Also:
    
    MediaCodec.CryptoInfo.mode
  - numBytesOfClearData
```
@Nullable
public int[] numBytesOfClearData
```
    The number of leading unencrypted bytes in each sub-sample. If null, all bytes are treated as encrypted and numBytesOfEncryptedData must be specified.
    
    See Also:
    
    MediaCodec.CryptoInfo.numBytesOfClearData
  - numBytesOfEncryptedData
```
@Nullable
public int[] numBytesOfEncryptedData
```
    The number of trailing encrypted bytes in each sub-sample. If null, all bytes are treated as clear and numBytesOfClearData must be specified.
    
    See Also:
    
    MediaCodec.CryptoInfo.numBytesOfEncryptedData
  - numSubSamples
```
public int numSubSamples
```
    The number of subSamples that make up the buffer's contents.
    
    See Also:
    
    MediaCodec.CryptoInfo.numSubSamples
  - encryptedBlocks
```
public int encryptedBlocks
```
    See Also:
    
    MediaCodec.CryptoInfo.Pattern
  - clearBlocks
```
public int clearBlocks
```
    See Also:
    
    MediaCodec.CryptoInfo.Pattern
- Constructor Detail
  - CryptoInfo
```
public CryptoInfo()
```
- Method Detail
  - set
```
public void set(int numSubSamples,
                int[] numBytesOfClearData,
                int[] numBytesOfEncryptedData,
                byte[] key,
                byte[] iv,
                @com.google.android.exoplayer2.C.CryptoMode int mode,
                int encryptedBlocks,
                int clearBlocks)
```
    See Also:
    
    MediaCodec.CryptoInfo.set(int, int[], int[], byte[], byte[], int)
  - getFrameworkCryptoInfo
```
public MediaCodec.CryptoInfo getFrameworkCryptoInfo()
```
    Returns an equivalent MediaCodec.CryptoInfo instance.
    Successive calls to this method on a single CryptoInfo will return the same instance. Changes to the CryptoInfo will be reflected in the returned object. The return object should not be modified directly.
    
    Returns:
    
    The equivalent MediaCodec.CryptoInfo instance.
  - increaseClearDataFirstSubSampleBy
```
public void increaseClearDataFirstSubSampleBy(int count)
```
    Increases the number of clear data for the first sub sample by count.
    If count is 0, this method is a no-op. Otherwise, it adds count to numBytesOfClearData[0].
    If numBytesOfClearData is null (which is permitted), this method will instantiate it to a new int[1].
    
    Parameters:
    
    count - The number of bytes to be added to the first subSample of numBytesOfClearData.

Class CryptoInfo

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

iv

key

mode

numBytesOfClearData

numBytesOfEncryptedData

numSubSamples

encryptedBlocks

clearBlocks

Constructor Detail

CryptoInfo

Method Detail

set

getFrameworkCryptoInfo

increaseClearDataFirstSubSampleBy