Package org.jitsi.impl.neomedia.transform.fec

Class FlexFec03Packet

java.lang.Object

org.jitsi.service.neomedia.RawPacket

org.jitsi.impl.neomedia.transform.fec.FlexFec03Packet

All Implemented Interfaces:

org.jitsi.utils.ByteArrayBuffer

public class FlexFec03Packet
extends RawPacket

Author:

bbaldino Based on FlexFec draft -03 https://tools.ietf.org/html/draft-ietf-payload-flexible-fec-scheme-03 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 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |R|F| P|X| CC |M| PT recovery | length recovery | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | TS recovery | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | SSRCCount | reserved | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | SSRC_i | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | SN base_i |k| Mask [0-14] | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |k| Mask [15-45] (optional) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |k| | +-+ Mask [46-108] (optional) | | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | ... next in SSRC_i ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Nested Class Summary

Nested classes/interfaces inherited from class org.jitsi.service.neomedia.RawPacket

RawPacket.HeaderExtension, RawPacket.HeaderExtensions

Field Summary

Fields

Modifier and Type	Field	Description
protected FlexFec03Header	header	The FlexFEC03 header

Fields inherited from class org.jitsi.service.neomedia.RawPacket

EXT_HEADER_SIZE, FIXED_HEADER_SIZE, SEQUENCE_NUMBER_MASK, TIMESTAMP_MASK

Method Summary

Modifier and Type	Method	Description
static FlexFec03Packet	create(byte[] buffer, int offset, int length)	Create a FlexFec03Packet
static FlexFec03Packet	create(RawPacket p)	Create a FlexFec03Packet
int	getFlexFecHeaderOffset()	Get the offset at which the FlexFEC header starts
int	getFlexFecHeaderSize()	Get the size of the flexfec header for this packet
int	getFlexFecPayloadLength()	Returns the size of the FlexFEC payload, in bytes
List<Integer>	getProtectedSequenceNumbers()	Get the list of media packet sequence numbers protected by this FlexFec03Packet
long	getProtectedSsrc()	Get the media ssrc protected by this flexfec packet

Methods inherited from class org.jitsi.service.neomedia.RawPacket

addExtension, addExtension, addExtension, append, extractCsrcAudioLevels, extractCsrcList, extractSsrcAudioLevel, getBuffer, getCsrcCount, getCsrcCount, getExtensionBit, getExtensionBit, getExtensionLength, getExtensionLength, getFlags, getHeaderExtension, getHeaderExtensions, getHeaderExtensionType, getHeaderLength, getHeaderLength, getLength, getOffset, getOriginalSequenceNumber, getPaddingSize, getPaddingSize, getPayload, getPayloadLength, getPayloadLength, getPayloadLength, getPayloadLength, getPayloadOffset, getPayloadOffset, getPayloadType, getPayloadType, getPayloadType, getRTCPPacketType, getRTCPSSRC, getRTCPSSRC, getRTCPSSRC, getSequenceNumber, getSequenceNumber, getSequenceNumber, getSRTCPIndex, getSRTCPIndex, getSSRC, getSSRC, getSSRC, getSSRCAsLong, getSSRCAsLong, getTimestamp, getTimestamp, getTimestamp, getVersion, getVersion, getVersion, grow, isInvalid, isInvalid, isPacketMarked, isPacketMarked, isPacketMarked, isRtpRtcp, isSkipStats, readByte, readInt, readRegion, readRegionToBuff, readUint16AsInt, readUint32AsLong, removeExtension, setBuffer, setCsrcList, setFlags, setLength, setMarker, setOffset, setOriginalSequenceNumber, setPaddingSize, setPayloadType, setSequenceNumber, setSequenceNumber, setSequenceNumber, setSkipStats, setSSRC, setTimestamp, setTimestamp, setTimestamp, setVersion, shrink, toString, writeByte, writeInt, writeShort

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

header

protected FlexFec03Header header

The FlexFEC03 header

Method Detail

create

public static FlexFec03Packet create(RawPacket p)

Create a FlexFec03Packet

Parameters:

p - the RawPacket to attempt parsing as a FlexFEC packet

Returns:

a FlexFec03Packet if 'p' is successfully parsed as a FlexFec03Packet, null otherwise

create

public static FlexFec03Packet create(byte[] buffer,
                                     int offset,
                                     int length)

Create a FlexFec03Packet

Returns:

a FlexFec03Packet if 'p' is successfully parsed as a FlexFec03Packet, null otherwise

getProtectedSequenceNumbers

public List<Integer> getProtectedSequenceNumbers()

Get the list of media packet sequence numbers protected by this FlexFec03Packet

Returns:

the list of media packet sequence numbers protected by this FlexFec03Packet

getFlexFecHeaderSize

public int getFlexFecHeaderSize()

Get the size of the flexfec header for this packet

Returns:

the size of the flexfec header for this packet

getProtectedSsrc

public long getProtectedSsrc()

Get the media ssrc protected by this flexfec packet

Returns:

the media ssrc protected by this flexfec packet

getFlexFecPayloadLength

public int getFlexFecPayloadLength()

Returns the size of the FlexFEC payload, in bytes

Returns:

the size of the FlexFEC packet payload, in bytes

getFlexFecHeaderOffset

public int getFlexFecHeaderOffset()

Get the offset at which the FlexFEC header starts

Returns:

the offset at which the FlexFEC header starts