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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.
Audio & Graphics API
Video Capture Developer's Guide
The video capture framework provides applications the ability to capture frames from a video input source. These frames can be passed to a graphics component such as Screen for display.
Video Capture API (capture.h)
The video capture API includes all the functions, data structures, and constants needed for video capture. It does not handle video display, which should be handled by another component, such as Screen.
Properties
The video capture API includes constants, data types, enumerated values, and macros specifying video capture properties.
Interface, threads, and offsets
The video capture API includes constants that specify the video capture interface type, thread priority, and YUV offsets.
Definitions
The video capture API includes constants that specify thread priority.

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
  - Audio Developer's Guide
    The Audio Developer's Guide is intended for developers who want to write audio applications using the QNX Sound Architecture (QSA) drivers and library.
  - Gestures Library Reference
    The Gestures library provides gesture recognizers to detect gestures through touch events that occur when you place one or more fingers on a touch screen.
  - Image Library Reference
  - Input Events Library Reference
    The Input Events library provides the framework necessary for Screen Graphics Subsystem to communicate with your touch driver.
  - OpenWF Configuration Developer's Guide
    If you are integrating a new display, you must configure and provide the parameters of your display based on its specifications via the OpenWF Display Configuration API (Wfdcfg Library).
  - Screen Graphics Subsystem Developer's Guide
    QNX Screen Graphics Subsystem is a graphics framework that provides all the functionality necessary to develop interactive user experiences.
  - Video Capture Developer's Guide
    The video capture framework provides applications the ability to capture frames from a video input source. These frames can be passed to a graphics component such as Screen for display.
    - Using Video Capture
      The video capture framework provides applications the ability to capture frames from a video input source. These frames can be passed to a graphics component such as Screen for display.
    - Video Capture API (capture.h)
      The video capture API includes all the functions, data structures, and constants needed for video capture. It does not handle video display, which should be handled by another component, such as Screen.
      - Properties
        The video capture API includes constants, data types, enumerated values, and macros specifying video capture properties.
        Data bus, data lane, and clock
        The video capture API includes constants that specify the video capture data bus, data lane and clock properties.
        Debugging
        The video capture API includes constants that specify the video capture debugging properties.
        Deinterlacing
        The video capture API includes enumerated values that specify deinterlacing behavior.
        Destination buffer
        The video capture API includes constants that specify the video capture destination buffer properties.
        Driver and device
        The video capture API includes constants and macros to be used when specifying and retrieving driver and device properties.
        External source
        The video capture API includes constants that specify the video capture external source properties.
        Interface, threads, and offsets
        The video capture API includes constants that specify the video capture interface type, thread priority, and YUV offsets.
        Capture interface type
        Types of interfaces
        Definitions
        The video capture API includes constants that specify thread priority.
        I2C decoder path and slave address
        The video capture API includes constants that specify the video capture I2C decoder path and slave address properties.
        Polarity
        The video capture API includes constants that specify the video capture polarity properties.
        Source
        The video capture API includes definitions for the source properties.
        Video capture behavior
        The video capture API includes constants that specify the video capture video capture behavior properties.
        Video standards
        The video capture API includes constants that specify the video capture video standard properties.
        Video frame
        The video capture API includes constants that specify the video capture video frame properties.
      - capture_context_t
        An opaque pointer (or handle) to a video capture context
      - capture_create_buffers()
        Allocate driver-controlled memory for video capture
      - capture_create_context()
        Create a video capture context
      - capture_destroy_context()
        Disconnect from the video capture device, and destroy the video capture context
      - capture_get_frame()
        Get a frame from the video capture device
      - capture_get_free_buffer()
        Get a free video capture buffer when bringing in video from an external source
      - capture_get_property_i()
        Get a video frame capture property of type integer
      - capture_get_property_p()
        Get video frame capture property of type void*
      - capture_is_property()
        Check if the specified property is supported
      - capture_put_buffer()
        Pass a buffer to the driver for deinterlacing a frame when bringing in video from an external source
      - capture_release_frame()
        Release a video frame buffer
      - capture_set_property_i()
        Set a video frame capture property of type integer
      - capture_set_property_p()
        Set a video frame capture property of type (void) pointer
      - capture_update()
        Apply the capture settings
      - Helper macros
        The video capture API includes macros to help with interval conversions.
- Multimedia
- 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.

Threads

The video capture API includes constants that specify thread priority.

Definitions:

#define CAPTURE_PROPERTY_THREAD_PRIORITY CAPTURE_PROPERTY( 'Q', 'T', 'P', 'R' )

Scheduling priority of the capture thread.

Read/Write int

Page updated: March 12, 2026