java.lang.Object
- com.google.android.exoplayer2.source.rtsp.RtpPacket

public final class RtpPacket
extends Object

Represents the header and the payload of an RTP packet.

Not supported parsing at the moment: header extension and CSRC.

Structure of an RTP header (RFC3550, Section 5.1).

  0                   1                   2                   3
  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |V=2|P|X|  CC   |M|     PT      |       sequence number         |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |                           timestamp                           |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |           synchronization source (SSRC) identifier            |
 +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
 |            contributing source (CSRC) identifiers             |
 |                             ....                              |
 +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
 | Profile-specific extension ID |   Extension header length     |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 |                       Extension header                        |
 |                             ....                              |
 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    3                   2                   1
  1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class RtpPacket.Builder
Builder class for an RtpPacket

Field Summary

Fields
Modifier and Type	Field	Description
`byte[]`	`csrc`	The RTP CSRC fields (Optional, up to 15 items).
`static int`	`CSRC_SIZE`
`byte`	`csrcCount`	The RTP CSRC count field (Word 0, bits 4-7).
`boolean`	`extension`	The RTP extension bit (Word 0, bit 3).
`boolean`	`marker`	The RTP marker bit (Word 0, bit 8).
`static int`	`MAX_SEQUENCE_NUMBER`
`static int`	`MAX_SIZE`
`static int`	`MIN_HEADER_SIZE`
`static int`	`MIN_SEQUENCE_NUMBER`
`boolean`	`padding`	The RTP padding bit (Word 0, bit 2).
`byte[]`	`payloadData`
`byte`	`payloadType`	The RTP CSRC count field (Word 0, bits 9-15).
`static int`	`RTP_VERSION`
`int`	`sequenceNumber`	The RTP sequence number field (Word 0, bits 16-31).
`int`	`ssrc`	The RTP SSRC field (Word 2).
`long`	`timestamp`	The RTP timestamp field (Word 1).
`byte`	`version`	The RTP version field (Word 0, bits 0-1), should always be 2.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`static int`	`getNextSequenceNumber(int sequenceNumber)`	Returns the next sequence number of the `sequenceNumber`.
`static int`	`getPreviousSequenceNumber(int sequenceNumber)`	Returns the previous sequence number from the `sequenceNumber`.
`int`	`hashCode()`
`static RtpPacket`	`parse(byte[] buffer, int length)`	Creates an `RtpPacket` from a byte array.
`static RtpPacket`	`parse(ParsableByteArray packetBuffer)`	Creates an `RtpPacket` from a `ParsableByteArray`.
`String`	`toString()`
`int`	`writeToBuffer(byte[] target, int offset, int length)`	Writes the data in an RTP packet to a target buffer.

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

- Field Detail
  - RTP_VERSION
```
public static final int RTP_VERSION
```
    See Also:
    
    Constant Field Values
  - MAX_SIZE
```
public static final int MAX_SIZE
```
    See Also:
    
    Constant Field Values
  - MIN_HEADER_SIZE
```
public static final int MIN_HEADER_SIZE
```
    See Also:
    
    Constant Field Values
  - MIN_SEQUENCE_NUMBER
```
public static final int MIN_SEQUENCE_NUMBER
```
    See Also:
    
    Constant Field Values
  - MAX_SEQUENCE_NUMBER
```
public static final int MAX_SEQUENCE_NUMBER
```
    See Also:
    
    Constant Field Values
  - CSRC_SIZE
```
public static final int CSRC_SIZE
```
    See Also:
    
    Constant Field Values
  - version
```
public final byte version
```
    The RTP version field (Word 0, bits 0-1), should always be 2.
    
    See Also:
    
    Constant Field Values
  - padding
```
public final boolean padding
```
    The RTP padding bit (Word 0, bit 2).
  - extension
```
public final boolean extension
```
    The RTP extension bit (Word 0, bit 3).
  - csrcCount
```
public final byte csrcCount
```
    The RTP CSRC count field (Word 0, bits 4-7).
  - marker
```
public final boolean marker
```
    The RTP marker bit (Word 0, bit 8).
  - payloadType
```
public final byte payloadType
```
    The RTP CSRC count field (Word 0, bits 9-15).
  - sequenceNumber
```
public final int sequenceNumber
```
    The RTP sequence number field (Word 0, bits 16-31).
  - timestamp
```
public final long timestamp
```
    The RTP timestamp field (Word 1).
  - ssrc
```
public final int ssrc
```
    The RTP SSRC field (Word 2).
  - csrc
```
public final byte[] csrc
```
    The RTP CSRC fields (Optional, up to 15 items).
  - payloadData
```
public final byte[] payloadData
```
- Method Detail
  - getNextSequenceNumber
```
public static int getNextSequenceNumber(int sequenceNumber)
```
    Returns the next sequence number of the sequenceNumber.
  - getPreviousSequenceNumber
```
public static int getPreviousSequenceNumber(int sequenceNumber)
```
    Returns the previous sequence number from the sequenceNumber.
  - parse
```
@Nullable
public static RtpPacket parse(ParsableByteArray packetBuffer)
```
    Creates an RtpPacket from a ParsableByteArray.
    
    Parameters:
    
    packetBuffer - The buffer that contains the RTP packet data.
    
    Returns:
    
    The built RtpPacket.
  - parse
```
@Nullable
public static RtpPacket parse(byte[] buffer,
                              int length)
```
    Creates an RtpPacket from a byte array.
    
    Parameters:
    
    buffer - The buffer that contains the RTP packet data.
    
    length - The length of the RTP packet.
    
    Returns:
    
    The built RtpPacket.
  - writeToBuffer
```
public int writeToBuffer(byte[] target,
                         int offset,
                         int length)
```
    Writes the data in an RTP packet to a target buffer.
    The size of the target buffer and the length argument should be big enough so that the entire RTP packet could fit. That is, if there is not enough space to store the entire RTP packet, no bytes will be written. The maximum size of an RTP packet is defined as MAX_SIZE.
    
    Parameters:
    
    target - A target byte buffer to which the packet data is copied.
    
    offset - The offset into the target array at which to write.
    
    length - The maximum number of bytes that can be written.
    
    Returns:
    
    The number of bytes written, or C.LENGTH_UNSET if there is not enough space to write the packet.
  - equals
```
public boolean equals(@Nullable
                      Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class RtpPacket

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

RTP_VERSION

MAX_SIZE

MIN_HEADER_SIZE

MIN_SEQUENCE_NUMBER

MAX_SEQUENCE_NUMBER

CSRC_SIZE

version

padding

extension

csrcCount

marker

payloadType

sequenceNumber

timestamp

ssrc

csrc

payloadData

Method Detail

getNextSequenceNumber

getPreviousSequenceNumber

parse

parse

writeToBuffer

equals

hashCode

toString