33b27c3c15
QImageEncoderControl - implementation for AVFoundation plugin (OS X/iOS, at the moment iOS >= 7.0). Change-Id: Ibc2c3ae48252dd4698e263f5abca5c328482d5e7 Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
274 lines
9.2 KiB
Plaintext
274 lines
9.2 KiB
Plaintext
/****************************************************************************
|
||
**
|
||
** Copyright (C) 2015 The Qt Company Ltd.
|
||
** Contact: http://www.qt.io/licensing/
|
||
**
|
||
** This file is part of the Qt Toolkit.
|
||
**
|
||
** $QT_BEGIN_LICENSE:LGPL21$
|
||
** Commercial License Usage
|
||
** Licensees holding valid commercial Qt licenses may use this file in
|
||
** accordance with the commercial license agreement provided with the
|
||
** Software or, alternatively, in accordance with the terms contained in
|
||
** a written agreement between you and The Qt Company. For licensing terms
|
||
** and conditions see http://www.qt.io/terms-conditions. For further
|
||
** information use the contact form at http://www.qt.io/contact-us.
|
||
**
|
||
** GNU Lesser General Public License Usage
|
||
** Alternatively, this file may be used under the terms of the GNU Lesser
|
||
** General Public License version 2.1 or version 3 as published by the Free
|
||
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
|
||
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
|
||
** following information to ensure the GNU Lesser General Public License
|
||
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
|
||
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
||
**
|
||
** As a special exception, The Qt Company gives you certain additional
|
||
** rights. These rights are described in The Qt Company LGPL Exception
|
||
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
||
**
|
||
** $QT_END_LICENSE$
|
||
**
|
||
****************************************************************************/
|
||
|
||
#include "avfcameraviewfindersettingscontrol.h"
|
||
#include "avfimageencodercontrol.h"
|
||
#include "avfimagecapturecontrol.h"
|
||
#include "avfcamerautility.h"
|
||
#include "avfcamerasession.h"
|
||
#include "avfcameraservice.h"
|
||
#include "avfcameradebug.h"
|
||
|
||
#include <QtMultimedia/qmediaencodersettings.h>
|
||
|
||
#include <QtCore/qsysinfo.h>
|
||
#include <QtCore/qdebug.h>
|
||
|
||
#include <AVFoundation/AVFoundation.h>
|
||
|
||
QT_BEGIN_NAMESPACE
|
||
|
||
QSize qt_image_high_resolution(AVCaptureDeviceFormat *format)
|
||
{
|
||
Q_ASSERT(format);
|
||
QSize res;
|
||
#if defined(Q_OS_IOS) && QT_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(__IPHONE_8_0)
|
||
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_IOS_8_0) {
|
||
const CMVideoDimensions hrDim(format.highResolutionStillImageDimensions);
|
||
res.setWidth(hrDim.width);
|
||
res.setHeight(hrDim.height);
|
||
}
|
||
#endif
|
||
return res;
|
||
}
|
||
|
||
AVFImageEncoderControl::AVFImageEncoderControl(AVFCameraService *service)
|
||
: m_service(service)
|
||
{
|
||
Q_ASSERT(service);
|
||
}
|
||
|
||
QStringList AVFImageEncoderControl::supportedImageCodecs() const
|
||
{
|
||
return QStringList() << QLatin1String("jpeg");
|
||
}
|
||
|
||
QString AVFImageEncoderControl::imageCodecDescription(const QString &codecName) const
|
||
{
|
||
if (codecName == QLatin1String("jpeg"))
|
||
return tr("JPEG image");
|
||
|
||
return QString();
|
||
}
|
||
|
||
QList<QSize> AVFImageEncoderControl::supportedResolutions(const QImageEncoderSettings &settings,
|
||
bool *continuous) const
|
||
{
|
||
Q_UNUSED(settings)
|
||
|
||
QList<QSize> resolutions;
|
||
|
||
if (!videoCaptureDeviceIsValid())
|
||
return resolutions;
|
||
|
||
#if QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(__MAC_10_7, __IPHONE_7_0)
|
||
if (QSysInfo::MacintoshVersion >= qt_OS_limit(QSysInfo::MV_10_7, QSysInfo::MV_IOS_7_0)) {
|
||
AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice();
|
||
for (AVCaptureDeviceFormat *format in captureDevice.formats) {
|
||
if (qt_is_video_range_subtype(format))
|
||
continue;
|
||
|
||
const QSize res(qt_device_format_resolution(format));
|
||
if (!res.isNull() && res.isValid())
|
||
resolutions << res;
|
||
#if defined(Q_OS_IOS) && QT_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(__IPHONE_8_0)
|
||
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_IOS_8_0) {
|
||
// From Apple's docs (iOS):
|
||
// By default, AVCaptureStillImageOutput emits images with the same dimensions as
|
||
// its source AVCaptureDevice instance’s activeFormat.formatDescription. However,
|
||
// if you set this property to YES, the receiver emits still images at the capture
|
||
// device’s highResolutionStillImageDimensions value.
|
||
const QSize hrRes(qt_image_high_resolution(format));
|
||
if (!hrRes.isNull() && hrRes.isValid())
|
||
resolutions << res;
|
||
}
|
||
#endif
|
||
}
|
||
} else {
|
||
#else
|
||
{
|
||
#endif
|
||
// TODO: resolutions without AVCaptureDeviceFormat ...
|
||
}
|
||
|
||
if (continuous)
|
||
*continuous = false;
|
||
|
||
return resolutions;
|
||
}
|
||
|
||
QImageEncoderSettings AVFImageEncoderControl::imageSettings() const
|
||
{
|
||
QImageEncoderSettings settings;
|
||
|
||
if (!videoCaptureDeviceIsValid())
|
||
return settings;
|
||
|
||
#if QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(__MAC_10_7, __IPHONE_7_0)
|
||
if (QSysInfo::MacintoshVersion >= qt_OS_limit(QSysInfo::MV_10_7, QSysInfo::MV_IOS_7_0)) {
|
||
AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice();
|
||
if (!captureDevice.activeFormat) {
|
||
qDebugCamera() << Q_FUNC_INFO << "no active format";
|
||
return settings;
|
||
}
|
||
|
||
QSize res(qt_device_format_resolution(captureDevice.activeFormat));
|
||
#if defined(Q_OS_IOS) && QT_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(__IPHONE_8_0)
|
||
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_IOS_8_0) {
|
||
if (!m_service->imageCaptureControl() || !m_service->imageCaptureControl()->stillImageOutput()) {
|
||
qDebugCamera() << Q_FUNC_INFO << "no still image output";
|
||
return settings;
|
||
}
|
||
|
||
AVCaptureStillImageOutput *stillImageOutput = m_service->imageCaptureControl()->stillImageOutput();
|
||
if (stillImageOutput.highResolutionStillImageOutputEnabled)
|
||
res = qt_image_high_resolution(captureDevice.activeFormat);
|
||
}
|
||
#endif
|
||
if (res.isNull() || !res.isValid()) {
|
||
qDebugCamera() << Q_FUNC_INFO << "failed to exctract the image resolution";
|
||
return settings;
|
||
}
|
||
|
||
settings.setResolution(res);
|
||
} else {
|
||
#else
|
||
{
|
||
#endif
|
||
// TODO: resolution without AVCaptureDeviceFormat.
|
||
}
|
||
|
||
settings.setCodec(QLatin1String("jpeg"));
|
||
|
||
return settings;
|
||
}
|
||
|
||
void AVFImageEncoderControl::setImageSettings(const QImageEncoderSettings &settings)
|
||
{
|
||
if (m_settings == settings || settings.isNull())
|
||
return;
|
||
|
||
m_settings = settings;
|
||
|
||
applySettings();
|
||
}
|
||
|
||
void AVFImageEncoderControl::applySettings()
|
||
{
|
||
if (!videoCaptureDeviceIsValid())
|
||
return;
|
||
|
||
AVFCameraSession *session = m_service->session();
|
||
if (!session || (session->state() != QCamera::ActiveState
|
||
&& session->state() != QCamera::LoadedState)) {
|
||
return;
|
||
}
|
||
|
||
if (!m_service->imageCaptureControl()
|
||
|| !m_service->imageCaptureControl()->stillImageOutput()) {
|
||
qDebugCamera() << Q_FUNC_INFO << "no still image output";
|
||
return;
|
||
}
|
||
|
||
if (m_settings.codec().size()
|
||
&& m_settings.codec() != QLatin1String("jpeg")) {
|
||
qDebugCamera() << Q_FUNC_INFO << "unsupported codec:" << m_settings.codec();
|
||
return;
|
||
}
|
||
|
||
QSize res(m_settings.resolution());
|
||
if (res.isNull()) {
|
||
qDebugCamera() << Q_FUNC_INFO << "invalid resolution:" << res;
|
||
return;
|
||
}
|
||
|
||
if (!res.isValid()) {
|
||
// Invalid == default value.
|
||
// Here we could choose the best format available, but
|
||
// activeFormat is already equal to 'preset high' by default,
|
||
// which is good enough, otherwise we can end in some format with low framerates.
|
||
return;
|
||
}
|
||
|
||
#if QT_MAC_PLATFORM_SDK_EQUAL_OR_ABOVE(__MAC_10_7, __IPHONE_7_0)
|
||
if (QSysInfo::MacintoshVersion >= qt_OS_limit(QSysInfo::MV_10_7, QSysInfo::MV_IOS_7_0)) {
|
||
AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice();
|
||
AVCaptureDeviceFormat *match = qt_find_best_resolution_match(captureDevice, res);
|
||
|
||
if (!match) {
|
||
qDebugCamera() << Q_FUNC_INFO << "unsupported resolution:" << res;
|
||
return;
|
||
}
|
||
|
||
if (match != captureDevice.activeFormat) {
|
||
const AVFConfigurationLock lock(captureDevice);
|
||
if (!lock) {
|
||
qDebugCamera() << Q_FUNC_INFO << "failed to lock for configuration";
|
||
return;
|
||
}
|
||
captureDevice.activeFormat = match;
|
||
}
|
||
|
||
#if defined(Q_OS_IOS) && QT_IOS_PLATFORM_SDK_EQUAL_OR_ABOVE(__IPHONE_8_0)
|
||
if (QSysInfo::MacintoshVersion >= QSysInfo::MV_IOS_8_0) {
|
||
AVCaptureStillImageOutput *imageOutput = m_service->imageCaptureControl()->stillImageOutput();
|
||
if (res == qt_image_high_resolution(captureDevice.activeFormat))
|
||
imageOutput.highResolutionStillImageOutputEnabled = YES;
|
||
else
|
||
imageOutput.highResolutionStillImageOutputEnabled = NO;
|
||
}
|
||
#endif
|
||
} else {
|
||
#else
|
||
{
|
||
#endif
|
||
// TODO: resolution without capture device format ...
|
||
}
|
||
}
|
||
|
||
bool AVFImageEncoderControl::videoCaptureDeviceIsValid() const
|
||
{
|
||
if (!m_service->session() || !m_service->session()->videoCaptureDevice())
|
||
return false;
|
||
|
||
AVCaptureDevice *captureDevice = m_service->session()->videoCaptureDevice();
|
||
if (!captureDevice.formats || !captureDevice.formats.count)
|
||
return false;
|
||
|
||
return true;
|
||
}
|
||
|
||
QT_END_NAMESPACE
|
||
|
||
#include "moc_avfimageencodercontrol.cpp"
|