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Diffstat (limited to 'src/plugins/gstreamer/mediacapture/qgstreamerv4l2input.cpp')
-rw-r--r--src/plugins/gstreamer/mediacapture/qgstreamerv4l2input.cpp286
1 files changed, 0 insertions, 286 deletions
diff --git a/src/plugins/gstreamer/mediacapture/qgstreamerv4l2input.cpp b/src/plugins/gstreamer/mediacapture/qgstreamerv4l2input.cpp
deleted file mode 100644
index ef0832f7e..000000000
--- a/src/plugins/gstreamer/mediacapture/qgstreamerv4l2input.cpp
+++ /dev/null
@@ -1,286 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** 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 https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://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 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qgstreamerv4l2input.h"
-
-#include <QtCore/qdebug.h>
-#include <QtCore/qfile.h>
-
-#include <private/qcore_unix_p.h>
-#include <linux/videodev2.h>
-
-#include <algorithm>
-
-QT_BEGIN_NAMESPACE
-static inline uint qHash(const QSize& key) { return uint(key.width()*256+key.height()); }
-
-static bool operator<(const QSize &s1, const QSize s2)
-{
- return s1.width()*s1.height() < s2.width()*s2.height();
-}
-QT_END_NAMESPACE
-
-QGstreamerV4L2Input::QGstreamerV4L2Input(QObject *parent)
- :QObject(parent)
-{
-}
-
-QGstreamerV4L2Input::~QGstreamerV4L2Input()
-{
-}
-
-GstElement *QGstreamerV4L2Input::buildElement()
-{
- GstElement *camera = gst_element_factory_make("v4l2src", "camera_source");
- if (camera && !m_device.isEmpty() )
- g_object_set(G_OBJECT(camera), "device", m_device.constData(), NULL);
-
- return camera;
-}
-
-void QGstreamerV4L2Input::setDevice(const QByteArray &newDevice)
-{
- if (m_device != newDevice) {
- m_device = newDevice;
- updateSupportedResolutions(newDevice);
- }
-}
-
-void QGstreamerV4L2Input::setDevice(const QString &device)
-{
- setDevice(QFile::encodeName(device));
-}
-
-void QGstreamerV4L2Input::updateSupportedResolutions(const QByteArray &device)
-{
- m_frameRates.clear();
- m_resolutions.clear();
- m_ratesByResolution.clear();
-
- QSet<QSize> allResolutions;
- QSet<int> allFrameRates;
-
- QFile f(device);
-
- if (!f.open(QFile::ReadOnly))
- return;
-
- int fd = f.handle();
-
- //get the list of formats:
- QList<quint32> supportedFormats;
-
- {
- v4l2_fmtdesc fmt;
- memset(&fmt, 0, sizeof(v4l2_fmtdesc));
-
- fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- int sanity = 0;
-
- for (fmt.index = 0;; fmt.index++) {
- if (sanity++ > 8)
- break;
- if( ::ioctl(fd, VIDIOC_ENUM_FMT, &fmt) == -1) {
- if(errno == EINVAL)
- break;
- }
- supportedFormats.append(fmt.pixelformat);
- }
- }
-
- QList<QSize> commonSizes;
- commonSizes << QSize(128, 96)
- <<QSize(160,120)
- <<QSize(176, 144)
- <<QSize(320, 240)
- <<QSize(352, 288)
- <<QSize(640, 480)
- <<QSize(1024, 768)
- <<QSize(1280, 1024)
- <<QSize(1600, 1200)
- <<QSize(1920, 1200)
- <<QSize(2048, 1536)
- <<QSize(2560, 1600)
- <<QSize(2580, 1936);
-
- QList<int> commonRates;
- commonRates << 05*1000 << 75*1000 << 10*1000 << 15*1000 << 20*1000
- << 24*1000 << 25*1000 << 30*1000 << 50*1000 << 60*1000;
-
-
- //get the list of resolutions:
-
- for (quint32 format : qAsConst(supportedFormats)) {
- struct v4l2_frmsizeenum formatSize;
- memset(&formatSize, 0, sizeof(formatSize));
- formatSize.pixel_format = format;
-
- QList<QSize> sizeList;
-
- if (0) {
- char formatStr[5];
- memcpy(formatStr, &format, 4);
- formatStr[4] = 0;
- //qDebug() << "trying format" << formatStr;
- }
-
- for (int i=0;;i++) {
- formatSize.index = i;
- if (ioctl (fd, VIDIOC_ENUM_FRAMESIZES, &formatSize) < 0)
- break;
-
- if (formatSize.type == V4L2_FRMSIZE_TYPE_DISCRETE) {
- sizeList.append(QSize(formatSize.discrete.width, formatSize.discrete.height));
- } else {
-
- for (const QSize& candidate : qAsConst(commonSizes)) {
- if (candidate.width() <= (int)formatSize.stepwise.max_width &&
- candidate.height() >= (int)formatSize.stepwise.min_width &&
- candidate.width() % formatSize.stepwise.step_width == 0 &&
- candidate.height() <= (int)formatSize.stepwise.max_height &&
- candidate.height() >= (int)formatSize.stepwise.min_height &&
- candidate.height() % formatSize.stepwise.step_height == 0) {
- sizeList.append(candidate);
- }
- }
-
- if (!sizeList.contains(QSize(formatSize.stepwise.min_width, formatSize.stepwise.min_height)))
- sizeList.prepend(QSize(formatSize.stepwise.min_width, formatSize.stepwise.min_height));
-
- if (!sizeList.contains(QSize(formatSize.stepwise.max_width, formatSize.stepwise.max_height)))
- sizeList.append(QSize(formatSize.stepwise.max_width, formatSize.stepwise.max_height));
-
- break; //stepwise values are returned only for index 0
- }
-
- }
-
- //and frameRates for each resolution.
-
- for (const QSize &s : qAsConst(sizeList)) {
- allResolutions.insert(s);
-
- struct v4l2_frmivalenum formatInterval;
- memset(&formatInterval, 0, sizeof(formatInterval));
- formatInterval.pixel_format = format;
- formatInterval.width = s.width();
- formatInterval.height = s.height();
-
- QList<int> frameRates; //in 1/1000 of fps
-
- for (int i=0; ; i++) {
- formatInterval.index = i;
-
- if (ioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &formatInterval) < 0)
- break;
-
- if (formatInterval.type == V4L2_FRMIVAL_TYPE_DISCRETE) {
- //converts seconds to fps*1000
- if (formatInterval.discrete.numerator)
- frameRates.append(qRound(formatInterval.discrete.denominator*1000.0 / formatInterval.discrete.numerator));
- } else {
- if (formatInterval.stepwise.min.numerator == 0 ||
- formatInterval.stepwise.max.numerator == 0) {
- qWarning() << "received invalid frame interval";
- break;
- }
-
-
- int minRate = qRound(formatInterval.stepwise.min.denominator*1000.0 /
- formatInterval.stepwise.min.numerator);
-
- int maxRate = qRound(formatInterval.stepwise.max.denominator*1000.0 /
- formatInterval.stepwise.max.numerator);
-
-
- for (int candidate : qAsConst(commonRates)) {
- if (candidate >= minRate && candidate <= maxRate)
- frameRates.append(candidate);
- }
-
- if (!frameRates.contains(minRate))
- frameRates.prepend(minRate);
-
- if (!frameRates.contains(maxRate))
- frameRates.append(maxRate);
-
- break; //stepwise values are returned only for index 0
- }
- }
- allFrameRates.unite(frameRates.toSet());
- m_ratesByResolution[s].unite(frameRates.toSet());
- }
- }
-
- f.close();
-
- for (int rate : qAsConst(allFrameRates)) {
- m_frameRates.append(rate/1000.0);
- }
-
- std::sort(m_frameRates.begin(), m_frameRates.end());
-
- m_resolutions = allResolutions.toList();
- std::sort(m_resolutions.begin(), m_resolutions.end());
-
- //qDebug() << "frame rates:" << m_frameRates;
- //qDebug() << "resolutions:" << m_resolutions;
-}
-
-
-QList<qreal> QGstreamerV4L2Input::supportedFrameRates(const QSize &frameSize) const
-{
- if (frameSize.isEmpty())
- return m_frameRates;
- else {
- QList<qreal> res;
- const auto rates = m_ratesByResolution[frameSize];
- res.reserve(rates.size());
- for (int rate : rates) {
- res.append(rate/1000.0);
- }
- return res;
- }
-}
-
-QList<QSize> QGstreamerV4L2Input::supportedResolutions(qreal frameRate) const
-{
- Q_UNUSED(frameRate);
- return m_resolutions;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 11:42:36 +0000