org.jitsi.impl.neomedia.rtp

Class ResumableStreamRewriter

java.lang.Object

org.jitsi.impl.neomedia.rtp.ResumableStreamRewriter

public class ResumableStreamRewriter
extends Object

Rewrites sequence numbers for RTP streams by hiding any gaps caused by dropped packets. Rewriters are not thread-safe. If multiple threads access a rewriter concurrently, it must be synchronized externally.

Author:

Maryam Daneshi, George Politis

Constructor Summary

Constructors

Constructor and Description
ResumableStreamRewriter()

Method Summary

Modifier and Type	Method and Description
boolean	processRTCP(boolean rewrite, byte[] buf, int off, int len) Restores the RTP timestamp of the RTCP SR packet in the buffer.
boolean	rewriteRTP(boolean accept, byte[] buf, int off, int len) Rewrites the sequence number of the RTP packet in the byte buffer, hiding any gaps caused by drops.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResumableStreamRewriter

public ResumableStreamRewriter()

Method Detail

rewriteRTP

public boolean rewriteRTP(boolean accept,
                          byte[] buf,
                          int off,
                          int len)

Rewrites the sequence number of the RTP packet in the byte buffer, hiding any gaps caused by drops.

Parameters:

accept - true if the packet is accepted, false otherwise

buf - the byte buffer that contains the RTP packet

off - the offset in the byte buffer where the RTP packet starts

len - the length of the RTP packet in the byte buffer

Returns:

true if the packet was altered, false otherwise

processRTCP

public boolean processRTCP(boolean rewrite,
                           byte[] buf,
                           int off,
                           int len)

Restores the RTP timestamp of the RTCP SR packet in the buffer.

Parameters:

buf - the byte buffer that contains the RTCP packet.

off - the offset in the byte buffer where the RTCP packet starts.

len - the number of bytes in buffer which constitute the actual data.

Returns:

true if the SR is modified, false otherwise.