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diff --git a/doc/src/camera.qdoc b/doc/src/camera.qdoc deleted file mode 100644 index 1fc5d1eca..000000000 --- a/doc/src/camera.qdoc +++ /dev/null @@ -1,170 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the documentation of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:FDL$ -** GNU Free Documentation License -** Alternatively, this file may be used under the terms of the GNU Free -** Documentation License version 1.3 as published by the Free Software -** Foundation and appearing in the file included in the packaging of -** this file. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms -** and conditions contained in a signed written agreement between you -** and Nokia. -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -/*! - -\page camera.html - -\title Camera -\brief An API to control camera devices. - -The Camera API provides control of system camera devices. Providing support -for still or video image capture with sound support. - -\tableofcontents - -\section1 Overview - -The Camera API allows high level control of various aspects of still images -and video. Camera is a part of the Multimedia API and this relationship is -apparent when you notice that certain core classes are subclassed from some -Multimedia base classes including \l QMediaObject and \l QMediaControl. - -\section1 Still Images - -In order to capture an image we need to create a \l QCamera object and use -it to initialize a \l QVideoWidget, so we can see where the camera is -pointing - a viewfinder. The camera object is also used to initialize a new -QCameraImageCapture object, imageCapture. All that is then needed is to start -the camera, lock it so that the settings are not changed while the image -capture occurs, capture the image, and finally unlock the camera ready for -the next photo. - - \code - camera = new QCamera; - viewFinder = new QCameraViewfinder; - camera->setViewfinder(viewFinder); - viewFinder->show(); - - imageCapture = new QCameraImageCapture(camera); - - camera->setCaptureMode(QCamera::CaptureStillImage); - camera->start(); - - //on half pressed shutter button - camera->searchA{QCameraFocus::FocusMode}{ndLock(); - - //on shutter button pressed - imageCapture->capture(); - - //on shutter button released - camera->unlock(); - \endcode - -Alternatively, we could have used a QGraphicsVideoItem as a viewfinder. - - -\section1 Video Clips - -Previously we saw code that allowed the capture of a still image. Recording -video requires the use of a \l QMediaRecorder object and a \l -QAudioCaptureSource for sound. - -To record video we need to create a camera object as before but this time as -well as creating a viewfinder, we will also initialize a media recorder object. - - \code - camera = new QCamera; - mediaRecorder = new QMediaRecorder(camera); - - camera->setCaptureMode(QCamera::CaptureVideo); - camera->start(); - - //on shutter button pressed - mediaRecorder->record(); - \endcode - -Signals from the \i mediaRecorder can be connected to slots to react to -changes in the state of the recorder or error events. Recording itself -starts with the \l {QMediaRecorder::record()}{record()} function of -mediaRecorder being called, this causes the signal \l -{QMediaRecorder::stateChanged()}{stateChanged()} to be emitted. The -recording process can be changed with the \l {QMediaRecorder::record()}{record()}, -\l {QMediaRecorder::pause()}{pause()}, \l {QMediaRecorder::stop()}{stop()} and -\l {QMediaRecorder::setMuted()}{setMuted()} slots in \l QMediaRecorder. - -When the camera is in video mode, as decided by the application, then as the -shutter button is pressed the camera is locked as before but instead the -\l {QMediaRecorder::record()}{record()} function in \l QMediaRecorder is used. - - - -\section1 Focus - -Focusing is managed by the classes \l QCameraFocus and \l QCameraFocusControl. -QCameraFocus allows the developer to set the general policy by means of the -enums for the \l {QCameraFocus::FocusMode}{FocusMode} and the -\l {QCameraFocus::FocusPointMode}{FocusPointMode}. \l {QCameraFocus::FocusMode}{FocusMode} -deals with settings such as \l {QCameraFocus::FocusMode}{AutoFocus}, -\l {QCameraFocus::FocusMode}{ContinuousFocus} and \l {QCameraFocus::FocusMode}{InfinityFocus}, whereas \l {QCameraFocus::FocusMode}{FocusPointMode} deals with the various focus zones within the view. \l {QCameraFocus::FocusMode}{FocusPointMode} has support for face recognition, center focus and a custom -focus where the focus point can be specified. - - - -\section1 Cancelling Asynchronous Operations - -Various operations such as image capture and auto focusing occur -asynchrously. These operations can often be cancelled by the start of a new -operation as long as this is supported by the backend. For image capture, -the operation can be cancelled by calling -\l {QCameraImageCapture::cancelCapture()}{cancelCapture()}. For AutoFocus, -autoexposure or white balance cancellation can be done by calling -\i {QCamera::unlock(QCamera::LockFocus)}. - - - -\section1 Camera Controls - - \table - \header - \o Control Name - \o Description - \row - \o camera - \o the interface for system camera devices - \row - \o exposure - \o Includes: flash mode; flash power; metering mode; aperture; shutter speed, iso setting - \row - \o focus - \o Includes: optical zoom; digital zoom; focus point; focus zones - \row - \o image processing - \o white balance; contrast; saturation; sharpen; denoise - \row - \o locks - \o handles the locking and unlocking of camera devices - \endtable - - -\section1 Classes -\annotatedlist multimedia_camera - - -*/ - - |