java.lang.Object
- com.google.android.exoplayer2.util.ParsableByteArray

```
public final class ParsableByteArray
extends Object
```
Wraps a byte array, providing a set of methods for parsing data from it. Numerical values are parsed with the assumption that their constituent bytes are in big endian order.

Constructor Summary

Constructors
Constructor	Description
`ParsableByteArray()`	Creates a new instance that initially has no backing data.
`ParsableByteArray(byte[] data)`	Creates a new instance wrapping `data`, and sets the limit to `data.length`.
`ParsableByteArray(byte[] data, int limit)`	Creates a new instance that wraps an existing array.
`ParsableByteArray(int limit)`	Creates a new instance with `limit` bytes and sets the limit.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`bytesLeft()`	Returns the number of bytes yet to be read.
`int`	`capacity()`	Returns the capacity of the array, which may be larger than the limit.
`void`	`ensureCapacity(int requiredCapacity)`	Ensures the backing array is at least `requiredCapacity` long.
`byte[]`	`getData()`	Returns the underlying array.
`int`	`getPosition()`	Returns the current offset in the array, in bytes.
`int`	`limit()`	Returns the limit.
`char`	`peekChar()`	Peeks at the next char.
`int`	`peekUnsignedByte()`	Peeks at the next byte as an unsigned value.
`void`	`readBytes(byte[] buffer, int offset, int length)`	Reads the next `length` bytes into `buffer` at `offset`.
`void`	`readBytes(ParsableBitArray bitArray, int length)`	Reads the next `length` bytes into `bitArray`, and resets the position of `bitArray` to zero.
`void`	`readBytes(ByteBuffer buffer, int length)`	Reads the next `length` bytes into `buffer`.
`String`	`readDelimiterTerminatedString(char delimiter)`	Reads up to the next delimiter byte (or the limit) as UTF-8 characters.
`double`	`readDouble()`	Reads the next eight bytes as a 64-bit floating point value.
`float`	`readFloat()`	Reads the next four bytes as a 32-bit floating point value.
`int`	`readInt()`	Reads the next four bytes as a signed value
`int`	`readInt24()`	Reads the next three bytes as a signed value.
`String`	`readLine()`	Reads a line of text.
`int`	`readLittleEndianInt()`	Reads the next four bytes as a signed value in little endian order.
`int`	`readLittleEndianInt24()`	Reads the next three bytes as a signed value in little endian order.
`long`	`readLittleEndianLong()`	Reads the next eight bytes as a signed value in little endian order.
`short`	`readLittleEndianShort()`	Reads the next two bytes as a signed value.
`long`	`readLittleEndianUnsignedInt()`	Reads the next four bytes as an unsigned value in little endian order.
`int`	`readLittleEndianUnsignedInt24()`	Reads the next three bytes as an unsigned value in little endian order.
`int`	`readLittleEndianUnsignedIntToInt()`	Reads the next four bytes as a little endian unsigned integer into an integer, if the top bit is a zero.
`int`	`readLittleEndianUnsignedShort()`	Reads the next two bytes as an unsigned value.
`long`	`readLong()`	Reads the next eight bytes as a signed value.
`String`	`readNullTerminatedString()`	Reads up to the next NUL byte (or the limit) as UTF-8 characters.
`String`	`readNullTerminatedString(int length)`	Reads the next `length` bytes as UTF-8 characters.
`short`	`readShort()`	Reads the next two bytes as a signed value.
`String`	`readString(int length)`	Reads the next `length` bytes as UTF-8 characters.
`String`	`readString(int length, Charset charset)`	Reads the next `length` bytes as characters in the specified `Charset`.
`int`	`readSynchSafeInt()`	Reads a Synchsafe integer.
`int`	`readUnsignedByte()`	Reads the next byte as an unsigned value.
`int`	`readUnsignedFixedPoint1616()`	Reads the next four bytes, returning the integer portion of the fixed point 16.16 integer.
`long`	`readUnsignedInt()`	Reads the next four bytes as an unsigned value.
`int`	`readUnsignedInt24()`	Reads the next three bytes as an unsigned value.
`int`	`readUnsignedIntToInt()`	Reads the next four bytes as an unsigned integer into an integer, if the top bit is a zero.
`long`	`readUnsignedLongToLong()`	Reads the next eight bytes as an unsigned long into a long, if the top bit is a zero.
`int`	`readUnsignedShort()`	Reads the next two bytes as an unsigned value.
`long`	`readUtf8EncodedLong()`	Reads a long value encoded by UTF-8 encoding
`void`	`reset(byte[] data)`	Updates the instance to wrap `data`, and resets the position to zero and the limit to `data.length`.
`void`	`reset(byte[] data, int limit)`	Updates the instance to wrap `data`, and resets the position to zero.
`void`	`reset(int limit)`	Resets the position to zero and the limit to the specified value.
`void`	`setLimit(int limit)`	Sets the limit.
`void`	`setPosition(int position)`	Sets the reading offset in the array.
`void`	`skipBytes(int bytes)`	Moves the reading offset by `bytes`.

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

- Constructor Detail
  - ParsableByteArray
```
public ParsableByteArray()
```
    Creates a new instance that initially has no backing data.
  - ParsableByteArray
```
public ParsableByteArray(int limit)
```
    Creates a new instance with limit bytes and sets the limit.
    
    Parameters:
    
    limit - The limit to set.
  - ParsableByteArray
```
public ParsableByteArray(byte[] data)
```
    Creates a new instance wrapping data, and sets the limit to data.length.
    
    Parameters:
    
    data - The array to wrap.
  - ParsableByteArray
```
public ParsableByteArray(byte[] data,
                         int limit)
```
    Creates a new instance that wraps an existing array.
    
    Parameters:
    
    data - The data to wrap.
    
    limit - The limit to set.
- Method Detail
  - reset
```
public void reset(int limit)
```
    Resets the position to zero and the limit to the specified value. This might replace or wipe the underlying array, potentially invalidating any local references.
    
    Parameters:
    
    limit - The limit to set.
  - reset
```
public void reset(byte[] data)
```
    Updates the instance to wrap data, and resets the position to zero and the limit to data.length.
    
    Parameters:
    
    data - The array to wrap.
  - reset
```
public void reset(byte[] data,
                  int limit)
```
    Updates the instance to wrap data, and resets the position to zero.
    
    Parameters:
    
    data - The array to wrap.
    
    limit - The limit to set.
  - ensureCapacity
```
public void ensureCapacity(int requiredCapacity)
```
    Ensures the backing array is at least requiredCapacity long.
    position, limit, and all data in the underlying array (including that beyond limit()) are preserved.
    This might replace or wipe the underlying array, potentially invalidating any local references.
  - bytesLeft
```
public int bytesLeft()
```
    Returns the number of bytes yet to be read.
  - limit
```
public int limit()
```
    Returns the limit.
  - setLimit
```
public void setLimit(int limit)
```
    Sets the limit.
    
    Parameters:
    
    limit - The limit to set.
  - getPosition
```
public int getPosition()
```
    Returns the current offset in the array, in bytes.
  - setPosition
```
public void setPosition(int position)
```
    Sets the reading offset in the array.
    
    Parameters:
    
    position - Byte offset in the array from which to read.
    
    Throws:
    
    IllegalArgumentException - Thrown if the new position is neither in nor at the end of the array.
  - getData
```
public byte[] getData()
```
    Returns the underlying array.
    Changes to this array are reflected in the results of the read...() methods.
    This reference must be assumed to become invalid when reset(int) or ensureCapacity(int) are called (because the array might get reallocated).
  - capacity
```
public int capacity()
```
    Returns the capacity of the array, which may be larger than the limit.
  - skipBytes
```
public void skipBytes(int bytes)
```
    Moves the reading offset by bytes.
    
    Parameters:
    
    bytes - The number of bytes to skip.
    
    Throws:
    
    IllegalArgumentException - Thrown if the new position is neither in nor at the end of the array.
  - readBytes
```
public void readBytes(ParsableBitArray bitArray,
                      int length)
```
    Reads the next length bytes into bitArray, and resets the position of bitArray to zero.
    
    Parameters:
    
    bitArray - The ParsableBitArray into which the bytes should be read.
    
    length - The number of bytes to write.
  - readBytes
```
public void readBytes(byte[] buffer,
                      int offset,
                      int length)
```
    Reads the next length bytes into buffer at offset.
    
    Parameters:
    
    buffer - The array into which the read data should be written.
    
    offset - The offset in buffer at which the read data should be written.
    
    length - The number of bytes to read.
    
    See Also:
    
    System.arraycopy(Object, int, Object, int, int)
  - readBytes
```
public void readBytes(ByteBuffer buffer,
                      int length)
```
    Reads the next length bytes into buffer.
    
    Parameters:
    
    buffer - The ByteBuffer into which the read data should be written.
    
    length - The number of bytes to read.
    
    See Also:
    
    ByteBuffer.put(byte[], int, int)
  - peekUnsignedByte
```
public int peekUnsignedByte()
```
    Peeks at the next byte as an unsigned value.
  - peekChar
```
public char peekChar()
```
    Peeks at the next char.
  - readUnsignedByte
```
public int readUnsignedByte()
```
    Reads the next byte as an unsigned value.
  - readUnsignedShort
```
public int readUnsignedShort()
```
    Reads the next two bytes as an unsigned value.
  - readLittleEndianUnsignedShort
```
public int readLittleEndianUnsignedShort()
```
    Reads the next two bytes as an unsigned value.
  - readShort
```
public short readShort()
```
    Reads the next two bytes as a signed value.
  - readLittleEndianShort
```
public short readLittleEndianShort()
```
    Reads the next two bytes as a signed value.
  - readUnsignedInt24
```
public int readUnsignedInt24()
```
    Reads the next three bytes as an unsigned value.
  - readInt24
```
public int readInt24()
```
    Reads the next three bytes as a signed value.
  - readLittleEndianInt24
```
public int readLittleEndianInt24()
```
    Reads the next three bytes as a signed value in little endian order.
  - readLittleEndianUnsignedInt24
```
public int readLittleEndianUnsignedInt24()
```
    Reads the next three bytes as an unsigned value in little endian order.
  - readUnsignedInt
```
public long readUnsignedInt()
```
    Reads the next four bytes as an unsigned value.
  - readLittleEndianUnsignedInt
```
public long readLittleEndianUnsignedInt()
```
    Reads the next four bytes as an unsigned value in little endian order.
  - readInt
```
public int readInt()
```
    Reads the next four bytes as a signed value
  - readLittleEndianInt
```
public int readLittleEndianInt()
```
    Reads the next four bytes as a signed value in little endian order.
  - readLong
```
public long readLong()
```
    Reads the next eight bytes as a signed value.
  - readLittleEndianLong
```
public long readLittleEndianLong()
```
    Reads the next eight bytes as a signed value in little endian order.
  - readUnsignedFixedPoint1616
```
public int readUnsignedFixedPoint1616()
```
    Reads the next four bytes, returning the integer portion of the fixed point 16.16 integer.
  - readSynchSafeInt
```
public int readSynchSafeInt()
```
    Reads a Synchsafe integer.
    Synchsafe integers keep the highest bit of every byte zeroed. A 32 bit synchsafe integer can store 28 bits of information.
    
    Returns:
    
    The parsed value.
  - readUnsignedIntToInt
```
public int readUnsignedIntToInt()
```
    Reads the next four bytes as an unsigned integer into an integer, if the top bit is a zero.
    
    Throws:
    
    IllegalStateException - Thrown if the top bit of the input data is set.
  - readLittleEndianUnsignedIntToInt
```
public int readLittleEndianUnsignedIntToInt()
```
    Reads the next four bytes as a little endian unsigned integer into an integer, if the top bit is a zero.
    
    Throws:
    
    IllegalStateException - Thrown if the top bit of the input data is set.
  - readUnsignedLongToLong
```
public long readUnsignedLongToLong()
```
    Reads the next eight bytes as an unsigned long into a long, if the top bit is a zero.
    
    Throws:
    
    IllegalStateException - Thrown if the top bit of the input data is set.
  - readFloat
```
public float readFloat()
```
    Reads the next four bytes as a 32-bit floating point value.
  - readDouble
```
public double readDouble()
```
    Reads the next eight bytes as a 64-bit floating point value.
  - readString
```
public String readString(int length)
```
    Reads the next length bytes as UTF-8 characters.
    
    Parameters:
    
    length - The number of bytes to read.
    
    Returns:
    
    The string encoded by the bytes.
  - readString
```
public String readString(int length,
                         Charset charset)
```
    Reads the next length bytes as characters in the specified Charset.
    
    Parameters:
    
    length - The number of bytes to read.
    
    charset - The character set of the encoded characters.
    
    Returns:
    
    The string encoded by the bytes in the specified character set.
  - readNullTerminatedString
```
public String readNullTerminatedString(int length)
```
    Reads the next length bytes as UTF-8 characters. A terminating NUL byte is discarded, if present.
    
    Parameters:
    
    length - The number of bytes to read.
    
    Returns:
    
    The string, not including any terminating NUL byte.
  - readNullTerminatedString
```
@Nullable
public String readNullTerminatedString()
```
    Reads up to the next NUL byte (or the limit) as UTF-8 characters.
    
    Returns:
    
    The string not including any terminating NUL byte, or null if the end of the data has already been reached.
  - readDelimiterTerminatedString
```
@Nullable
public String readDelimiterTerminatedString(char delimiter)
```
    Reads up to the next delimiter byte (or the limit) as UTF-8 characters.
    
    Returns:
    
    The string not including any terminating delimiter byte, or null if the end of the data has already been reached.
  - readLine
```
@Nullable
public String readLine()
```
    Reads a line of text.
    A line is considered to be terminated by any one of a carriage return ('\r'), a line feed ('\n'), or a carriage return followed immediately by a line feed ('\r\n'). The UTF-8 charset is used. This method discards leading UTF-8 byte order marks, if present.
    
    Returns:
    
    The line not including any line-termination characters, or null if the end of the data has already been reached.
  - readUtf8EncodedLong
```
public long readUtf8EncodedLong()
```
    Reads a long value encoded by UTF-8 encoding
    
    Returns:
    
    Decoded long value
    
    Throws:
    
    NumberFormatException - if there is a problem with decoding

Class ParsableByteArray

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ParsableByteArray

ParsableByteArray

ParsableByteArray

ParsableByteArray

Method Detail

reset

reset

reset

ensureCapacity

bytesLeft

limit

setLimit

getPosition

setPosition

getData

capacity

skipBytes

readBytes

readBytes

readBytes

peekUnsignedByte

peekChar

readUnsignedByte

readUnsignedShort

readLittleEndianUnsignedShort

readShort

readLittleEndianShort

readUnsignedInt24

readInt24

readLittleEndianInt24

readLittleEndianUnsignedInt24

readUnsignedInt

readLittleEndianUnsignedInt

readInt

readLittleEndianInt

readLong

readLittleEndianLong

readUnsignedFixedPoint1616

readSynchSafeInt

readUnsignedIntToInt

readLittleEndianUnsignedIntToInt

readUnsignedLongToLong

readFloat

readDouble

readString

readString

readNullTerminatedString

readNullTerminatedString

readDelimiterTerminatedString

readLine

readUtf8EncodedLong