PJMEDIA - Media Stack

PJMEDIA is a fully featured open source media stack, featuring small footprint and good extensibility and excellent portability.

API Reference

Compile Time Settings

• PJMEDIA

• Codecs

• Audio device

• Video Device

Basic Types and Functions

• Basic Types

• Error Codes

• Object Signatures

Core

• Media Endpoint

Formats

• Media Format

• File formats:

  • RIFF/WAVE

  • AVI

Codecs

• Codec Registration

• Codec constants

Audio Codecs

• Audio Codec Framework

• G.711

• AMR NB/WB

• BCG729 (a G.729 compliant codec)

• G.722

• G.722.1

• GSM FR

• ILBC

• IPP Codecs Library

• OpenCore AMR

• OPUS

• PCM/Linear 16bit

• Passthrough

• SILK

• Speex

Video Codecs

• Video Codec Framework

• FFMPEG Codecs

• OpenH264

• Video Toolbox Codec for iOS and Mac

• VPX Codec for iOS and Mac

Media Flow

• Media Frame

• Media Session

• Media Port Framework

Events

• Event Framework

Ports

• File Playback

• File Recorder

• Bidirectional Port

• Conference Bridge

• Echo Cancellation Port

• Buffer Playback

• Capture to Buffer

• Null Port

• Resampling Port

• Multi-frequency/DTMF Tone Generator

• Audio Stream

• Video Stream

• WAV Playlist

• Media channel splitter/combiner

• Video conference bridge

• Video source duplicator

• Clock provider ports:

  • Introduction

  • Master Port

  • Sound Device Port

  • Sound Device (Deprecated)

  • Video media port

  • Clock Generator

Other Audio Features

• Accoustic Echo Cancellation API

• Adaptive Delay Buffer

• Adaptive Jitter Buffer

• Adaptive Silence Detection

• Circular Buffer

• Format converter

• Mono/Stereo/Multichannel Converter

• Packet Lost Concealment (PLC)

• Resampling Algorithm

• Waveform Similarity Based Overlap-Add (WSOLA)

Transports

• Media Transport API

• UDP

• ICE - Interactive Connectivity Establishment

• SRTP - Secure RTP (SDES and DTLS)

• Loopback

• Sample Transport Adapter

SDP

• SDP Parsing and Data Structure

• SDP Negotiation State Machine (Offer/Answer Model, RFC 3264)

RTP and RTCP

• RTP Session and Encapsulation (RFC 3350)

• RTCP Session and Encapsulation (RFC 3350)

• RTCP Feedback (RFC 4585)

• RTCP XR (RFC 3611)

Portable Audio Device Framework

• Portable Audio Device API

• Implementor’s API

• Audio Test/Benchmark Utility

• Error Codes

Portable Video Device Framework

• Portable Video Device API

• Implementor’s API

• AVI Player Virtual Device

• Error Codes