Package org.jitsi.impl.neomedia.rtcp

Class RTCPFBPacket

java.lang.Object

net.sf.fmj.media.rtp.util.Packet

net.sf.fmj.media.rtp.RTCPPacket

org.jitsi.impl.neomedia.rtcp.RTCPFBPacket

Direct Known Subclasses:

NACKPacket, RTCPREMBPacket, RTCPTCCPacket

public class RTCPFBPacket
extends net.sf.fmj.media.rtp.RTCPPacket

Created by gp on 6/27/14. 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| FMT | PT | length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | SSRC of packet sender | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | SSRC of media source | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ : Feedback Control Information (FCI) : : :

Field Summary

Fields

Modifier and Type	Field	Description
byte[]	fci
int	fmt	Feedback message type (FMT).
static int	PSFB
static int	RTPFB
long	senderSSRC	SSRC of packet sender.
long	sourceSSRC	SSRC of media source.

Fields inherited from class net.sf.fmj.media.rtp.RTCPPacket

APP, base, BYE, COMPOUND, RR, SDES, SR, type

Fields inherited from class net.sf.fmj.media.rtp.util.Packet

data, flags, length, offset, receiptTime, received

Constructor Summary

Constructors

Constructor	Description
RTCPFBPacket(int fmt, int type, long senderSSRC, long sourceSSRC)
RTCPFBPacket(net.sf.fmj.media.rtp.RTCPCompoundPacket base)

Method Summary

Modifier and Type	Method	Description
void	assemble(DataOutputStream dataoutputstream)
int	calcLength()
static org.jitsi.utils.ByteArrayBuffer	getFCI(org.jitsi.utils.ByteArrayBuffer baf)	Gets the Feedback Control Information (FCI) field of an RTCP FB message.
long	getSenderSSRC()
long	getSourceSSRC()
static long	getSourceSSRC(org.jitsi.utils.ByteArrayBuffer baf)	Gets the SSRC of the media source of the packet specified in the ByteArrayBuffer passed in as an argument.
static boolean	isPSFBPacket(org.jitsi.utils.ByteArrayBuffer baf)	Gets a boolean that indicates whether or not the packet specified in the ByteArrayBuffer passed in as an argument is an RTP FB packet.
static boolean	isRTCPFBPacket(org.jitsi.utils.ByteArrayBuffer baf)	Gets a boolean that indicates whether or not the packet specified in the ByteArrayBuffer that is passed in the first argument is an RTCP RTPFB or PSFB packet.
static boolean	isRTPFBPacket(org.jitsi.utils.ByteArrayBuffer baf)	Gets a boolean that indicates whether or not the packet specified in the ByteArrayBuffer passed in as an argument is an RTP FB packet.
RawPacket	toRawPacket()
String	toString()

Methods inherited from class net.sf.fmj.media.rtp.util.Packet

clone

Methods inherited from class java.lang.Object

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

Field Detail

RTPFB

public static final int RTPFB

See Also:

Constant Field Values

PSFB

public static final int PSFB

See Also:

Constant Field Values

fci

public byte[] fci

fmt

public int fmt

Feedback message type (FMT).

senderSSRC

public long senderSSRC

SSRC of packet sender.

sourceSSRC

public long sourceSSRC

SSRC of media source.

Constructor Detail

RTCPFBPacket

public RTCPFBPacket(int fmt,
                    int type,
                    long senderSSRC,
                    long sourceSSRC)

RTCPFBPacket

public RTCPFBPacket(net.sf.fmj.media.rtp.RTCPCompoundPacket base)

Method Detail

isRTCPFBPacket

public static boolean isRTCPFBPacket(org.jitsi.utils.ByteArrayBuffer baf)

Gets a boolean that indicates whether or not the packet specified in the ByteArrayBuffer that is passed in the first argument is an RTCP RTPFB or PSFB packet.

Parameters:

baf - the ByteArrayBuffer that holds the RTCP packet.

Returns:

true if the packet specified in the ByteArrayBuffer that is passed in the first argument is an RTCP RTPFB or PSFB packet, otherwise false.

isRTPFBPacket

public static boolean isRTPFBPacket(org.jitsi.utils.ByteArrayBuffer baf)

Gets a boolean that indicates whether or not the packet specified in the ByteArrayBuffer passed in as an argument is an RTP FB packet.

Parameters:

baf - the ByteArrayBuffer that holds the packet

Returns:

true if the packet specified in the ByteArrayBuffer passed in as an argument is an RTP FB packet, otherwise false.

isPSFBPacket

public static boolean isPSFBPacket(org.jitsi.utils.ByteArrayBuffer baf)

Gets a boolean that indicates whether or not the packet specified in the ByteArrayBuffer passed in as an argument is an RTP FB packet.

Parameters:

baf - the ByteArrayBuffer that holds the packet

Returns:

true if the packet specified in the ByteArrayBuffer passed in as an argument is an RTP FB packet, otherwise false.

getSourceSSRC

public static long getSourceSSRC(org.jitsi.utils.ByteArrayBuffer baf)

Gets the SSRC of the media source of the packet specified in the ByteArrayBuffer passed in as an argument.

Parameters:

baf - the ByteArrayBuffer that holds the packet

Returns:

the SSRC of the media source of the packet specified in the ByteArrayBuffer passed in as an argument, or -1 in case of an error.

getFCI

public static org.jitsi.utils.ByteArrayBuffer getFCI(org.jitsi.utils.ByteArrayBuffer baf)

Gets the Feedback Control Information (FCI) field of an RTCP FB message.

Parameters:

baf - the ByteArrayBuffer that contains the RTCP message.

Returns:

the Feedback Control Information (FCI) field of an RTCP FB message.

assemble

public void assemble(DataOutputStream dataoutputstream)
              throws IOException

Specified by:

assemble in class net.sf.fmj.media.rtp.RTCPPacket

Throws:

IOException

calcLength

public int calcLength()

Specified by:

calcLength in class net.sf.fmj.media.rtp.RTCPPacket

toString

public String toString()

Overrides:

toString in class net.sf.fmj.media.rtp.util.Packet

toRawPacket

public RawPacket toRawPacket()
                      throws IOException

Returns:

a RawPacket representation of this RTCPFBPacket.

Throws:

IOException

getSenderSSRC

public long getSenderSSRC()

Returns:

the Sender SSRC field of this RTCP feedback packet.

getSourceSSRC

public long getSourceSSRC()

Returns:

the Source SSRC field of this RTCP feedback packet.