/*
* Portions Copyright 2000-2009 Sun Microsystems, Inc. All Rights
* Reserved. Use is subject to license terms.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
/*
* SdpConstants.java
*
* Created on January 10, 2002, 10:34 AM
*/
package gov.nist.javax.sdp;
/**
* The SdpConstants class contains the RTP/AVP related constants.
* Please refer to IETF RFC 2327 for a description of SDP.
* @version 1.0
*/
public interface SdpConstants {
/**
* Constant used to translate between NTP time used in SDP and
* "native" Java time. NTP time is defined as the number of
* seconds relative to midnight, January 1, 1900 and Java time is
* measured in number of milliseconds since midnight, January
* 1, 1970 UTC (see System#currentTimeMillis()}).
* The value of this constant is 2208988800L. It can be used to
* convert between NTP and Java time using the following
* formulas:
* ntpTime = (javaTime/1000) + SdpConstants.NTP_CONST;
* javaTime = (ntpTime - SdpConstants.NTP_CONST) * 1000;
* The Network Time Protocol (NTP) is defined in RFC 1305.
*/
public static final long NTP_CONST = 2208988800L;
/**
* Reserved Payload type.
* An int greater than or equal to 0 and less than AVP_DEFINED_STATIC_MAX,
* but has not been assigned a value.
*/
public static final String RESERVED = "0";
/**
* Unassigned Payload type.
* An int greater than or equal to AVP_DEFINED_STATIC_MAX and less than
* AVP_DYNAMIC_MIN - currently
* unassigned.
*/
public static final String UNASSIGNED = "35";
/**
* Dynamic Payload type.
* Any int less than 0 or greater than or equal to AVP_DYNAMIC_MIN
*/
public static final String DYNAMIC = "-35";
/**
* RTP/AVP Protocol
*/
public static final String RTP_AVP = "RTP/AVP";
/**
* RTP mapping attribute.
*/
public static final String RTPMAP = "RTPMAP";
/**
* RTP mapping attribute.
*/
public static final String FMTP = "FMTP";
/**
* Static RTP/AVP payload type for the PCMU audio codec.
*/
public static final int PCMU = 0;
/**
* Static RTP/AVP payload type for the TENSIXTEEN audio codec.
*/
public static final int TENSIXTEEN = 1;
/**
* Static RTP/AVP payload type for the G726_32 audio codec.
*/
public static final int G726_32 = 2;
/**
* Static RTP/AVP payload type for the GSM audio codec.
*/
public static final int GSM = 3;
/**
* Static RTP/AVP payload type for the G723 audio codec.
*/
public static final int G723 = 4;
/**
* Static RTP/AVP payload type for the DVI4_8000 audio codec
*/
public static final int DVI4_8000 = 5;
/**
* Static RTP/AVP payload type for the DVI4_16000 audio codec.
*/
public static final int DVI4_16000 = 6;
/**
* Static RTP/AVP payload type for the LPC audio codec
*/
public static final int LPC = 7;
/**
* Static RTP/AVP payload type for the PCMA audio codec.
*/
public static final int PCMA = 8;
/**
* Static RTP/AVP payload type for the G722 audio codec.
*/
public static final int G722 = 9;
/**
* Static RTP/AVP payload type for the L16_2CH audio codec.
*/
public static final int L16_2CH = 10;
/**
* Static RTP/AVP payload type for the L16_1CH audio codec.
*/
public static final int L16_1CH = 11;
/**
* Static RTP/AVP payload type for QCELP audio codec
*/
public static final int QCELP = 12;
/**
* Static RTP/AVP payload type for the CN audio codec.
*/
public static final int CN = 13;
/**
* Static RTP/AVP payload type for the MPA audio codec.
*/
public static final int MPA = 14;
/**
* Static RTP/AVP payload type for the G728 audio codec.
*/
public static final int G728 = 15;
/**
* Static RTP/AVP payload type for the DVI4_11025 audio codec
*/
public static final int DVI4_11025 = 16;
/**
* Static RTP/AVP payload type for the DVI4_22050 audio codec.
*/
public static final int DVI4_22050 = 17;
/**
* Static RTP/AVP payload type for the G729 audio codec.
*/
public static final int G729 = 18;
/**
* Static RTP/AVP payload type for the CN audio codec.
*/
public static final int CN_DEPRECATED = 19;
/**
* Static RTP/AVP payload type for the CELB video codec.
*/
public static final int CELB = 25;
/**
* Static RTP/AVP payload type for the JPEG video codec.
*/
public static final int JPEG = 26;
/**
* Static RTP/AVP payload type for the NV video codec
*/
public static final int NV = 28;
/**
* Static RTP/AVP payload type for the H261 video codec.
*/
public static final int H261 = 31;
/**
* Static RTP/AVP payload type for the MPV video codec.
*/
public static final int MPV = 32;
/**
* Static RTP/AVP payload type for the MP2T video codec.
*/
public static final int MP2T = 33;
/**
* Static RTP/AVP payload type for the H263 video codec.
*/
public static final int H263 = 20;
/**
* Highest defined static payload type. This is (currently) 35.
*/
public static final int AVP_DEFINED_STATIC_MAX = 35;
/**
* The minimum defined dynamic format value
*/
public static final int AVP_DYNAMIC_MIN = -35;
/**
* Names of AVP (Audio-Video Profile) payload types indexed on their static
* payload types.
*/
public static final String[] avpTypeNames = { "PCMU",
"1016",
"G721",
"GSM",
"G723",
"DVI4_8000",
"DVI4_16000",
"LPC",
"PCMA",
"G722",
"L16_2CH",
"L16_1CH",
"QCELP",
"CN",
"MPA",
"G728",
"DVI4_11025",
"DVI4_22050",
"G729",
"CN_DEPRECATED",
"H263",
"UNASSIGNED",
"UNASSIGNED",
"UNASSIGNED",
"UNASSIGNED",
"CelB",
"JPEG",
"UNASSIGNED",
"nv",
"UNASSIGNED",
"UNASSIGNED",
"H261",
"MPV",
"MP2T",
};
/**
* Clock rates for various AVP payload types indexed by their static payload
* types.
*/
public static final int[] avpClockRates = { 8000,
8000,
8000,
8000,
8000,
8000,
16000,
8000,
8000,
8000,
44100,
44100,
-1,
-1,
90000,
8000,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
90000,
90000,
-1,
90000,
-1,
-1,
90000,
90000,
90000,
};
/**
* Channels per static type.
*/
public static final int[] avpChannels = { 1,
1,
1,
1,
1,
1,
1,
1,
1,
1,
2,
1,
-1,
-1,
1,
1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
};
}