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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(s):
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,
                                                };
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