org.jitsi.impl.neomedia.jmfext.media.protocol.rtpdumpfile

Class RtpdumpFileReader

java.lang.Object

org.jitsi.impl.neomedia.jmfext.media.protocol.rtpdumpfile.RtpdumpFileReader

public class RtpdumpFileReader
extends Object

This class represent a rtpdump file and provide an API to get the payload of the rtp packet it contains. rtpdump format : - http://www.cs.columbia.edu/irt/software/rtptools/ - https://gist.github.com/Haerezis/18e3ffc2d69c86f8463f#file-rtpdump_file_format (backup gist) rtpdump file can be generated with wireshark from RTP stream, just go to : -> Telephony -> RTP -> Show All Streams then select the RTP stream you want to record, and click on "Save As". If the RTP menu isn't found in the Telephony menu, maybe you can find it in the "Statistics" menu (in old version of Wireshark).

Author:

Thomas Kuntz

Field Summary

Fields

Modifier and Type	Field and Description
static int	FILE_HEADER_LENGTH The size of the first header of the file (in bytes).

Constructor Summary

Constructors

Constructor and Description
RtpdumpFileReader(String filePath) Initialize a new instance of RtpdumpFileReader that will the rtpdump file located by filePath.

Method Summary

Modifier and Type	Method and Description
RawPacket	getNextPacket(boolean loopFile) Get the next rtp packet recorded in the rtpdump file.

Methods inherited from class java.lang.Object

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

Field Detail

FILE_HEADER_LENGTH

public static final int FILE_HEADER_LENGTH

The size of the first header of the file (in bytes). The file wireshark/ui/tap-rtp-common.c , more specifically the function rtp_write_header that write the file header, show that this header is 4+4+4+2+2=16 bytes.

See Also:

Constant Field Values

Constructor Detail

RtpdumpFileReader

public RtpdumpFileReader(String filePath)

Initialize a new instance of RtpdumpFileReader that will the rtpdump file located by filePath.

Parameters:

filePath - the location of the rtpdump file this RtpdumpFileReader will read.

Method Detail

getNextPacket

public RawPacket getNextPacket(boolean loopFile)
                        throws IOException

Get the next rtp packet recorded in the rtpdump file.

Parameters:

loopFile - if true, when the end of the rtpdump file is reached, this RtpdumpFileReader will go back at the beginning of the file and get the first packet.

Returns:

a RawPacket containing all the information and data of the next rtp packet recorded in the rtpdump file

Throws:

IOException - if loopFile was false and the end of the file is reached.