- Qt 6.4
- Qt Multimedia
- C++ Classes
- QtMultimedia
- QCameraFormat
- Qt 6.4.3 Reference Documentation

# QCameraFormat Class

The QCameraFormat class describes a video format supported by a camera device. More...

Header: | #include <QCameraFormat>
CMake: | find_package(Qt6 REQUIRED COMPONENTS Multimedia) target_link_libraries(mytarget PRIVATE Qt6::Multimedia)
qmake: | QT += multimedia

- List of all members, including inherited members

## Properties

- maxFrameRate : const float
- minFrameRate : const float
- pixelFormat : const QVideoFrameFormat::PixelFormat
- resolution : const QSize

## Public Functions

| QCameraFormat(const QCameraFormat &other)
| QCameraFormat()
QCameraFormat & | operator=(const QCameraFormat &other)
| ~QCameraFormat()
bool | isNull() const
float | maxFrameRate() const
float | minFrameRate() const
QVideoFrameFormat::PixelFormat | pixelFormat() const
QSize | resolution() const
bool | operator!=(const QCameraFormat &other) const
bool | operator==(const QCameraFormat &other) const

## Detailed Description

QCameraFormat represents a certain video format supported by a camera device.

The format is a combination of a pixel format, resolution and a range of frame rates.

QCameraFormat objects can be queried from QCameraDevice to inspect the set of supported video formats.

See also QCameraDevice and QCamera.

## Property Documentation

### `[read-only]` maxFrameRate : const float

Returns the highest frame rate defined by this format.

In 6.2, the camera will always try to use the highest frame rate supported by a certain video format.

Access functions:

float | maxFrameRate() const

### `[read-only]` minFrameRate : const float

Returns the lowest frame rate defined by this format.

Access functions:

float | minFrameRate() const

### `[read-only]` pixelFormat : const QVideoFrameFormat::PixelFormat

Returns the pixel format.

Most commonly this is either QVideoFrameFormat::Format_Jpeg or QVideoFrameFormat::Format_YUVY but other formats could also be supported by the camera.

Access functions:

QVideoFrameFormat::PixelFormat | pixelFormat() const

See also QVideoFrameFormat::PixelFormat.

### `[read-only]` resolution : const QSize

Returns the resolution.

Access functions:

QSize | resolution() const

## Member Function Documentation

### QCameraFormat::QCameraFormat(const QCameraFormat &other)

Copy constructs a camera format from the other format.

### QCameraFormat::QCameraFormat()

Constructs a null camera format.

See also isNull().

### QCameraFormat &QCameraFormat::operator=(const QCameraFormat &other)

Assign other to this.

### QCameraFormat::~QCameraFormat()

Destructs the camera format object.

### bool QCameraFormat::isNull() const

Returns true if this is a default constructed QCameraFormat.

### bool QCameraFormat::operator!=(const QCameraFormat &other) const

Returns `false` if the other format is equal to this camera format, otherwise `true`.

### bool QCameraFormat::operator==(const QCameraFormat &other) const

Returns `true` if the other format is equal to this camera format, otherwise `false`.