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QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running QNX Neutrino 7.1.
Multimedia
Multimedia Streaming Server
Multimedia Streaming Server API
mm-stream error codes
Error codes returned by mm-stream API functions

QNX Momentics IDE User's Guide
This User's Guide describes version 7.1 of the Integrated Development Environment (IDE) that's part of the QNX Momentics tool suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running QNX Neutrino 7.1.
- Quickstart Guide
- OS Components & Operations
- Audio & Graphics API
- Multimedia
  - Adding Multimedia to Target Images
  - Multimedia Renderer
  - Multimedia Streaming Server
    - Multimedia Streaming Server: Overview
      The Multimedia Streaming Server, mm-stream, is a network media server that can stream video and audio content over IP networks. Remote clients can access the media streams using RTSP or RTP.
    - Configuring the mm-stream server
      You can create mm-stream instances by providing raw JSON data or making the server read the configuration file named on the command line that started the process.
    - Multimedia Streaming Server API
      - Function safety
        Function safety refers to whether or not it's safe to use the multimedia streaming server API functions in certain situations.
      - mm-stream error codes
        Error codes returned by mm-stream API functions
      - mmstream_connect()
        Connect to an mm-stream instance
      - mmstream_disable()
        Disable an instance
      - mmstream_disconnect()
        Disconnect from an mm-stream instance
      - mmstream_enable()
        Enable an instance
      - mmstream_get_configuration()
        Get the configuration for an instance
      - mmstream_get_status_information()
        Get the status of an instance
      - mmstream_instance_t
        An mm-stream instance handle
      - mmstream_set_configuration()
        Set the configuration for an instance
  - Multimedia Test Utilities
  - OpenMAX AL Additions
- Networking Middleware
- Programming
- Sensor Framework
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX Neutrino RTOS system and developers who want to create a QNX Neutrino resource manager free from vulnerabilities.
- Utilities & Libraries
QNX Hypervisor
The QNX Hypervisor allows you to run multiple OSs on a target system so you can separate critical and non-critical functions, support a wide variety of applications, and reduce hardware costs.
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX software in Amazon Web Services (AWS) and Microsoft Azure (Azure).
QNX Advanced Virtualization Frameworks User's Guide
This User's Guide is aimed at all systems integrators and developers who want to design and build embedded systems using the QNX Advanced Virtualization Frameworks.
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation and explains how to obtain technical support.

mm-stream error codes

Error codes returned by mm-stream API functions

Synopsis:

#include <mmstream/mmstream.h>

#define MMSTREAM_INTERNAL_ERROR (0x4321)

Error code whose negative value is returned by any API function when an internal error occurs, except when connecting or disconnecting to instances

#define MMSTREAM_INVALID_INSTANCE (NULL)

Error code returned when a client tries to connect to an invalid instance

Library:

libmmstream

Page updated: March 12, 2026