Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
This commit is contained in:
Michael Goddard
289
src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp
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289
src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qgstreamerrecordercontrol.h"
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#include "qgstreameraudioencode.h"
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#include "qgstreamervideoencode.h"
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#include "qgstreamermediacontainercontrol.h"
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#include <QtCore/QDebug>
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QGstreamerRecorderControl::QGstreamerRecorderControl(QGstreamerCaptureSession *session)
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:QMediaRecorderControl(session), m_session(session), m_state(QMediaRecorder::StoppedState)
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{
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connect(m_session, SIGNAL(stateChanged(QGstreamerCaptureSession::State)), SLOT(updateState()));
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connect(m_session, SIGNAL(error(int,QString)), SIGNAL(error(int,QString)));
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connect(m_session, SIGNAL(durationChanged(qint64)), SIGNAL(durationChanged(qint64)));
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connect(m_session, SIGNAL(mutedChanged(bool)), SIGNAL(mutedChanged(bool)));
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m_hasPreviewState = m_session->captureMode() != QGstreamerCaptureSession::Audio;
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}
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QGstreamerRecorderControl::~QGstreamerRecorderControl()
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{
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}
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QUrl QGstreamerRecorderControl::outputLocation() const
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{
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return m_session->outputLocation();
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}
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bool QGstreamerRecorderControl::setOutputLocation(const QUrl &sink)
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{
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m_outputLocation = sink;
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m_session->setOutputLocation(sink);
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return true;
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}
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QMediaRecorder::State QGstreamerRecorderControl::state() const
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{
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switch ( m_session->state() ) {
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case QGstreamerCaptureSession::RecordingState:
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return QMediaRecorder::RecordingState;
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case QGstreamerCaptureSession::PausedState:
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return QMediaRecorder::PausedState;
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case QGstreamerCaptureSession::PreviewState:
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case QGstreamerCaptureSession::StoppedState:
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return QMediaRecorder::StoppedState;
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}
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return QMediaRecorder::StoppedState;
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}
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void QGstreamerRecorderControl::updateState()
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{
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QMediaRecorder::State newState = state();
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if (m_state != newState) {
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m_state = newState;
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emit stateChanged(m_state);
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}
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}
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qint64 QGstreamerRecorderControl::duration() const
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{
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return m_session->duration();
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}
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void QGstreamerRecorderControl::record()
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{
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if (m_outputLocation.isEmpty()) {
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QString container = m_session->mediaContainerControl()->containerExtension();
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if (container.isEmpty())
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container = "raw";
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m_session->setOutputLocation(QUrl(generateFileName(defaultDir(), container)));
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}
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m_session->dumpGraph("before-record");
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if (!m_hasPreviewState || m_session->state() != QGstreamerCaptureSession::StoppedState) {
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m_session->setState(QGstreamerCaptureSession::RecordingState);
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} else
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emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));
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m_session->dumpGraph("after-record");
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}
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void QGstreamerRecorderControl::pause()
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{
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m_session->dumpGraph("before-pause");
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if (!m_hasPreviewState || m_session->state() != QGstreamerCaptureSession::StoppedState) {
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m_session->setState(QGstreamerCaptureSession::PausedState);
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} else
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emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));
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}
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void QGstreamerRecorderControl::stop()
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{
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if (!m_hasPreviewState) {
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m_session->setState(QGstreamerCaptureSession::StoppedState);
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} else {
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if (m_session->state() != QGstreamerCaptureSession::StoppedState)
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m_session->setState(QGstreamerCaptureSession::PreviewState);
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}
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}
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void QGstreamerRecorderControl::applySettings()
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{
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//Check the codecs are compatible with container,
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//and choose the compatible codecs/container if omitted
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QGstreamerAudioEncode *audioEncodeControl = m_session->audioEncodeControl();
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QGstreamerVideoEncode *videoEncodeControl = m_session->videoEncodeControl();
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QGstreamerMediaContainerControl *mediaContainerControl = m_session->mediaContainerControl();
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bool needAudio = m_session->captureMode() & QGstreamerCaptureSession::Audio;
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bool needVideo = m_session->captureMode() & QGstreamerCaptureSession::Video;
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QStringList containerCandidates;
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if (mediaContainerControl->containerMimeType().isEmpty())
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containerCandidates = mediaContainerControl->supportedContainers();
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else
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containerCandidates << mediaContainerControl->containerMimeType();
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QStringList audioCandidates;
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if (needAudio) {
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QAudioEncoderSettings audioSettings = audioEncodeControl->audioSettings();
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if (audioSettings.codec().isEmpty())
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audioCandidates = audioEncodeControl->supportedAudioCodecs();
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else
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audioCandidates << audioSettings.codec();
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}
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QStringList videoCandidates;
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if (needVideo) {
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QVideoEncoderSettings videoSettings = videoEncodeControl->videoSettings();
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if (videoSettings.codec().isEmpty())
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videoCandidates = videoEncodeControl->supportedVideoCodecs();
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else
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videoCandidates << videoSettings.codec();
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}
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QString container;
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QString audioCodec;
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QString videoCodec;
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foreach (const QString &containerCandidate, containerCandidates) {
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QSet<QString> supportedTypes = mediaContainerControl->supportedStreamTypes(containerCandidate);
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audioCodec.clear();
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videoCodec.clear();
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if (needAudio) {
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bool found = false;
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foreach (const QString &audioCandidate, audioCandidates) {
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QSet<QString> audioTypes = audioEncodeControl->supportedStreamTypes(audioCandidate);
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if (!audioTypes.intersect(supportedTypes).isEmpty()) {
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found = true;
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audioCodec = audioCandidate;
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break;
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}
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}
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if (!found)
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continue;
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}
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if (needVideo) {
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bool found = false;
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foreach (const QString &videoCandidate, videoCandidates) {
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QSet<QString> videoTypes = videoEncodeControl->supportedStreamTypes(videoCandidate);
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if (!videoTypes.intersect(supportedTypes).isEmpty()) {
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found = true;
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videoCodec = videoCandidate;
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break;
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}
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}
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if (!found)
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continue;
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}
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container = containerCandidate;
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break;
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}
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if (container.isEmpty()) {
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emit error(QMediaRecorder::FormatError, tr("Not compatible codecs and container format."));
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} else {
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mediaContainerControl->setContainerMimeType(container);
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if (needAudio) {
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QAudioEncoderSettings audioSettings = audioEncodeControl->audioSettings();
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audioSettings.setCodec(audioCodec);
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audioEncodeControl->setAudioSettings(audioSettings);
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}
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if (needVideo) {
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QVideoEncoderSettings videoSettings = videoEncodeControl->videoSettings();
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videoSettings.setCodec(videoCodec);
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videoEncodeControl->setVideoSettings(videoSettings);
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}
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}
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}
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bool QGstreamerRecorderControl::isMuted() const
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{
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return m_session->isMuted();
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}
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void QGstreamerRecorderControl::setMuted(bool muted)
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{
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m_session->setMuted(muted);
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}
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QDir QGstreamerRecorderControl::defaultDir() const
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{
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QStringList dirCandidates;
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#if defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)
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dirCandidates << QLatin1String("/home/user/MyDocs");
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#endif
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dirCandidates << QDir::home().filePath("Documents");
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dirCandidates << QDir::home().filePath("My Documents");
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dirCandidates << QDir::homePath();
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dirCandidates << QDir::currentPath();
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dirCandidates << QDir::tempPath();
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foreach (const QString &path, dirCandidates) {
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QDir dir(path);
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if (dir.exists() && QFileInfo(path).isWritable())
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return dir;
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}
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return QDir();
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}
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QString QGstreamerRecorderControl::generateFileName(const QDir &dir, const QString &ext) const
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{
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int lastClip = 0;
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foreach(QString fileName, dir.entryList(QStringList() << QString("clip_*.%1").arg(ext))) {
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int imgNumber = fileName.mid(5, fileName.size()-6-ext.length()).toInt();
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lastClip = qMax(lastClip, imgNumber);
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}
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QString name = QString("clip_%1.%2").arg(lastClip+1,
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4, //fieldWidth
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10,
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QLatin1Char('0')).arg(ext);
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return dir.absoluteFilePath(name);
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}
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