---
name: "payload"
section: "3cc"
platform: "linux"
package: "libccrtp-dev"
version: "1.0.2-1"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/payload/3cc"
---

# payload(3cc)

## NAME

Payload types and formats. -

### Compounds

class **DynamicPayloadFormat**\
 *Dynamic payload format objects.* class **DynamicPayloadFormat**\
 *Dynamic payload format objects.* class **PayloadFormat**\
 *Base payload format class.* class **PayloadFormat**\
 *Base payload format class.* class **StaticPayloadFormat**\
 *Static payload format objects.* class **StaticPayloadFormat**\
 *Static payload format objects.*

### Typedefs

typedef uint8 **PayloadType**\
 *RTP payload type numeric identifier.*

### Enumerations

enum **StaticPayloadType** { **sptPCMU** =  0, **sptG726\_32** =  2, **sptGSM**, **sptG723**, **sptDVI4\_8000**, **sptDVI4\_16000**, **sptLPC**, **sptPCMA**, **sptG722**, **sptL16\_DUAL**, **sptL16\_MONO**, **sptQCELP**, **sptMPA** =  14, **sptG728**, **sptDVI4\_11025**, **sptDVI4\_22050**, **sptG729**, **sptCELB** =  25, **sptJPEG**, **sptNV** =  28, **sptH261** =  31, **sptMPV**, **sptMP2T**, **sptH263** }\
 *RTP static payload types (default bindings) defined in the AVP profile.*

### Variables

const **PayloadType** **ptINVALID** = 128\
 *Predefined value for invalid or uninitialized payload type variables.*

## TYPEDEF DOCUMENTATION

### PayloadType

RTP payload type numeric identifier.

At the RTP level a payload format is identified with a 7 bit number. This number is binded to a payload format through non-RTP means (SIP, SAP, application specific rules, etc.)

## ENUMERATION TYPE DOCUMENTATION

### enum StaticPayloadType

RTP static payload types (default bindings) defined in the AVP profile.

**Enumeration values:**

- *sptPCMU*

  *ITU-T G.711. $\\mu-$law audio 8 Khz (RFC 1890).*

- *sptG726\_32*

  *ITU-T G.726. ADPCM audio (RFC 1890).*

- *sptGSM*

  *GSM audio (RFC 1890).*

- *sptG723*

  *ITU-T G.723. MP-MLQ ACELP audio (RFC 1890).*

- *sptDVI4\_8000*

  *Modified IMA ADPCM audio 8Khz (RFC 1890).*

- *sptDVI4\_16000*

  *Modified IMA ADPCM audio 16Khz (RFC 1890).*

- *sptLPC*

  *LPC audio (RFC 1890).*

- *sptPCMA*

  *ITU-T G.711 A-law audio 8 Khz (RFC 1890).*

- *sptG722*

  *Audio (RFCs 1890, 3047).*

- *sptL16\_DUAL*

  *Linear uncompressed dual audio (RFC 1890).*

- *sptL16\_MONO*

  *Linear uncompressed mono audio (RFC 1890).*

- *sptQCELP*

  *Audio at 8000 hz.*

- *sptMPA*

  *MPEG Audio elem. stream (RFCs 1890, 2250).*

- *sptG728*

  *ITU-T G.728. LD-CELP audio.*

- *sptDVI4\_11025*

  *DVI audio at 11025 hz (by Joseph Di Pol).*

- *sptDVI4\_22050*

  *DVI audio at 22050 hz (by Joseph Di Pol).*

- *sptG729*

  *ITU-T G.729. CS-ACELP audio.*

- *sptCELB*

  *Sun's propietary video (RFCs 1890, 2029).*

- *sptJPEG*

  *JPEG (ISO 10918) video (RFCs 1890, 2435).*

- *sptNV*

  *Ron Frederick's nv audio (RFC 1890).*

- *sptH261*

  *ITU-T H.261 video (RFCs 1890, 2032).*

- *sptMPV*

  *MPEG Video elem. stream (RFCs 1890, 2250).*

- *sptMP2T*

  *MPEG 2 Transport stream (RFCs 1890, 2250).*

- *sptH263*

  *ITU-T H.263 video (RFCs 2190, 2429).*