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/*
* SdpConstants.java
*
* Created on January 10, 2002, 10:34 AM
*/
package javax.sdp;
/** The SdpConstants class contains the RTP/AVP related constants.
* Please refer to IETF RFC 2327 for a description of SDP.
* @author deruelle
* @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.
*
* SDP is case-sensitive; RFC2327 specifies 'rtpmap' (all smallcap)
*/
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=34;
/** 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",
"UNASSIGNED",
"CelB",
"JPEG",
"UNASSIGNED",
"nv",
"UNASSIGNED",
"UNASSIGNED",
"H261",
"MPV",
"MP2T",
"H263",
};
/** 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,
-1
};
/** 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,
};
}
