Phonon::Experimental::VideoFrame2 Struct Reference

#include <videoframe2.h>

Public Types
enum	Format {   Format_Invalid = QImage::Format_Invalid , Format_RGB888 = QImage::Format_RGB888 , Format_RGB32 = QImage::Format_RGB32 , Format_YCbCr420 = 0x10000 ,   Format_YV12 = Format_YCbCr420 , Format_YCbCr422 = 0x10001 , Format_YUY2 = Format_YCbCr422 }

Public Member Functions
int	aspectCorrectedHeight () const
int	aspectCorrectedWidth () const
QImage	qImage () const

Public Attributes
double	aspectRatio
QByteArray	data0
QByteArray	data1
QByteArray	data2
Format	format
int	height
int	width

Detailed Description

A single video frame.

This simple class contains the data of a frame and metadata describing how to interpret the data.

Author

Matthias Kretz kretz.nosp@m.@kde.nosp@m..org

Definition at line 42 of file videoframe2.h.

Member Enumeration Documentation

Format

enum Phonon::Experimental::VideoFrame2::Format

Video frames come in a variety of formats.

Depending on the format you have to process it differently to convert it for displaying or encoding.

Enumerator
Format_Invalid	The frame is invalid.
Format_RGB888	The frame is stored in data0 using a 24-bit RGB format (8-8-8).
Format_YCbCr420	The frame is stored in data0, data1 and data2 using data0 for the Y data, data1 for the Cb data and data2 for the Cr data. data1 and data2 contain one byte per for adjacent pixels whereas data0 has one byte per pixel.
Format_YCbCr422	The frame is stored in data0 using a 32-bit Y0-Cb-Y1-Cr format (8-8-8-8).

Definition at line 49 of file videoframe2.h.

Member Function Documentation

aspectCorrectedHeight()

int Phonon::Experimental::VideoFrame2::aspectCorrectedHeight ( ) const

inline

Convenience function to calculate the aspect corrected height from the aspectRatio and width values.

It is recommended to display video frames with aspectCorrectedWidth x height

Definition at line 106 of file videoframe2.h.

aspectCorrectedWidth()

int Phonon::Experimental::VideoFrame2::aspectCorrectedWidth ( ) const

inline

Convenience function to calculate the aspect corrected width from the aspectRatio and height values.

It is recommended to display video frames with aspectCorrectedWidth x height

Definition at line 98 of file videoframe2.h.

qImage()

QImage Phonon::Experimental::VideoFrame2::qImage ( ) const

inline

Definition at line 145 of file videoframe2.h.

Member Data Documentation

aspectRatio

double Phonon::Experimental::VideoFrame2::aspectRatio

The aspect ratio the frame should be displayed with.

Common values are 4/3, 16/9.

Definition at line 90 of file videoframe2.h.

data0

QByteArray Phonon::Experimental::VideoFrame2::data0

RGB8, YUY2 or Y-plane.

If format is Format_RGB888 then the data contains each pixel as three consecutive bytes for red, green and blue.

If format is Format_YUY2 the data contains every two pixels as four consecutive bytes for Y0, Cb, Y1, Cr

If format is Format_YV12 the data contains one byte per pixel with the Y value.

Definition at line 127 of file videoframe2.h.

data1

QByteArray Phonon::Experimental::VideoFrame2::data1

YV12 U-plane.

If format is Format_YV12 the data contains one byte per four adjacent pixels with the Cb value.

Definition at line 135 of file videoframe2.h.

data2

QByteArray Phonon::Experimental::VideoFrame2::data2

YV12 V-plane.

If format is Format_YV12 the data contains one byte per four adjacent pixels with the Cr value.

Definition at line 143 of file videoframe2.h.

format

Format Phonon::Experimental::VideoFrame2::format

Format of the frame.

See also

Format

Definition at line 113 of file videoframe2.h.

height

int Phonon::Experimental::VideoFrame2::height

The height of the video frame in number of pixels.

Definition at line 83 of file videoframe2.h.

width

int Phonon::Experimental::VideoFrame2::width

The width of the video frame in number of pixels.

Definition at line 78 of file videoframe2.h.

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The documentation for this struct was generated from the following file:

• videoframe2.h