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authorMichael Goddard <michael.goddard@nokia.com>2011-06-29 13:38:46 +1000
committerMichael Goddard <michael.goddard@nokia.com>2011-06-29 13:38:46 +1000
commit2a34e88c1e1ced28e75c487cd13402e1c9cf9fa3 (patch)
treee6c1b770c5c47212792a1f9344fa034ea3e54c44 /src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp
Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
Diffstat (limited to 'src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp')
-rw-r--r--src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp289
1 files changed, 289 insertions, 0 deletions
diff --git a/src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp b/src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp
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+++ b/src/plugins/gstreamer/mediacapture/qgstreamerrecordercontrol.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgstreamerrecordercontrol.h"
+#include "qgstreameraudioencode.h"
+#include "qgstreamervideoencode.h"
+#include "qgstreamermediacontainercontrol.h"
+#include <QtCore/QDebug>
+
+QGstreamerRecorderControl::QGstreamerRecorderControl(QGstreamerCaptureSession *session)
+ :QMediaRecorderControl(session), m_session(session), m_state(QMediaRecorder::StoppedState)
+{
+ connect(m_session, SIGNAL(stateChanged(QGstreamerCaptureSession::State)), SLOT(updateState()));
+ connect(m_session, SIGNAL(error(int,QString)), SIGNAL(error(int,QString)));
+ connect(m_session, SIGNAL(durationChanged(qint64)), SIGNAL(durationChanged(qint64)));
+ connect(m_session, SIGNAL(mutedChanged(bool)), SIGNAL(mutedChanged(bool)));
+ m_hasPreviewState = m_session->captureMode() != QGstreamerCaptureSession::Audio;
+}
+
+QGstreamerRecorderControl::~QGstreamerRecorderControl()
+{
+}
+
+QUrl QGstreamerRecorderControl::outputLocation() const
+{
+ return m_session->outputLocation();
+}
+
+bool QGstreamerRecorderControl::setOutputLocation(const QUrl &sink)
+{
+ m_outputLocation = sink;
+ m_session->setOutputLocation(sink);
+ return true;
+}
+
+
+QMediaRecorder::State QGstreamerRecorderControl::state() const
+{
+ switch ( m_session->state() ) {
+ case QGstreamerCaptureSession::RecordingState:
+ return QMediaRecorder::RecordingState;
+ case QGstreamerCaptureSession::PausedState:
+ return QMediaRecorder::PausedState;
+ case QGstreamerCaptureSession::PreviewState:
+ case QGstreamerCaptureSession::StoppedState:
+ return QMediaRecorder::StoppedState;
+ }
+
+ return QMediaRecorder::StoppedState;
+
+}
+
+void QGstreamerRecorderControl::updateState()
+{
+ QMediaRecorder::State newState = state();
+ if (m_state != newState) {
+ m_state = newState;
+ emit stateChanged(m_state);
+ }
+}
+
+qint64 QGstreamerRecorderControl::duration() const
+{
+ return m_session->duration();
+}
+
+void QGstreamerRecorderControl::record()
+{
+ if (m_outputLocation.isEmpty()) {
+ QString container = m_session->mediaContainerControl()->containerExtension();
+ if (container.isEmpty())
+ container = "raw";
+
+ m_session->setOutputLocation(QUrl(generateFileName(defaultDir(), container)));
+ }
+
+ m_session->dumpGraph("before-record");
+ if (!m_hasPreviewState || m_session->state() != QGstreamerCaptureSession::StoppedState) {
+ m_session->setState(QGstreamerCaptureSession::RecordingState);
+ } else
+ emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));
+
+ m_session->dumpGraph("after-record");
+}
+
+void QGstreamerRecorderControl::pause()
+{
+ m_session->dumpGraph("before-pause");
+ if (!m_hasPreviewState || m_session->state() != QGstreamerCaptureSession::StoppedState) {
+ m_session->setState(QGstreamerCaptureSession::PausedState);
+ } else
+ emit error(QMediaRecorder::ResourceError, tr("Service has not been started"));
+}
+
+void QGstreamerRecorderControl::stop()
+{
+ if (!m_hasPreviewState) {
+ m_session->setState(QGstreamerCaptureSession::StoppedState);
+ } else {
+ if (m_session->state() != QGstreamerCaptureSession::StoppedState)
+ m_session->setState(QGstreamerCaptureSession::PreviewState);
+ }
+}
+
+void QGstreamerRecorderControl::applySettings()
+{
+ //Check the codecs are compatible with container,
+ //and choose the compatible codecs/container if omitted
+ QGstreamerAudioEncode *audioEncodeControl = m_session->audioEncodeControl();
+ QGstreamerVideoEncode *videoEncodeControl = m_session->videoEncodeControl();
+ QGstreamerMediaContainerControl *mediaContainerControl = m_session->mediaContainerControl();
+
+ bool needAudio = m_session->captureMode() & QGstreamerCaptureSession::Audio;
+ bool needVideo = m_session->captureMode() & QGstreamerCaptureSession::Video;
+
+ QStringList containerCandidates;
+ if (mediaContainerControl->containerMimeType().isEmpty())
+ containerCandidates = mediaContainerControl->supportedContainers();
+ else
+ containerCandidates << mediaContainerControl->containerMimeType();
+
+
+ QStringList audioCandidates;
+ if (needAudio) {
+ QAudioEncoderSettings audioSettings = audioEncodeControl->audioSettings();
+ if (audioSettings.codec().isEmpty())
+ audioCandidates = audioEncodeControl->supportedAudioCodecs();
+ else
+ audioCandidates << audioSettings.codec();
+ }
+
+ QStringList videoCandidates;
+ if (needVideo) {
+ QVideoEncoderSettings videoSettings = videoEncodeControl->videoSettings();
+ if (videoSettings.codec().isEmpty())
+ videoCandidates = videoEncodeControl->supportedVideoCodecs();
+ else
+ videoCandidates << videoSettings.codec();
+ }
+
+ QString container;
+ QString audioCodec;
+ QString videoCodec;
+
+ foreach (const QString &containerCandidate, containerCandidates) {
+ QSet<QString> supportedTypes = mediaContainerControl->supportedStreamTypes(containerCandidate);
+
+ audioCodec.clear();
+ videoCodec.clear();
+
+ if (needAudio) {
+ bool found = false;
+ foreach (const QString &audioCandidate, audioCandidates) {
+ QSet<QString> audioTypes = audioEncodeControl->supportedStreamTypes(audioCandidate);
+ if (!audioTypes.intersect(supportedTypes).isEmpty()) {
+ found = true;
+ audioCodec = audioCandidate;
+ break;
+ }
+ }
+ if (!found)
+ continue;
+ }
+
+ if (needVideo) {
+ bool found = false;
+ foreach (const QString &videoCandidate, videoCandidates) {
+ QSet<QString> videoTypes = videoEncodeControl->supportedStreamTypes(videoCandidate);
+ if (!videoTypes.intersect(supportedTypes).isEmpty()) {
+ found = true;
+ videoCodec = videoCandidate;
+ break;
+ }
+ }
+ if (!found)
+ continue;
+ }
+
+ container = containerCandidate;
+ break;
+ }
+
+ if (container.isEmpty()) {
+ emit error(QMediaRecorder::FormatError, tr("Not compatible codecs and container format."));
+ } else {
+ mediaContainerControl->setContainerMimeType(container);
+
+ if (needAudio) {
+ QAudioEncoderSettings audioSettings = audioEncodeControl->audioSettings();
+ audioSettings.setCodec(audioCodec);
+ audioEncodeControl->setAudioSettings(audioSettings);
+ }
+
+ if (needVideo) {
+ QVideoEncoderSettings videoSettings = videoEncodeControl->videoSettings();
+ videoSettings.setCodec(videoCodec);
+ videoEncodeControl->setVideoSettings(videoSettings);
+ }
+ }
+}
+
+
+bool QGstreamerRecorderControl::isMuted() const
+{
+ return m_session->isMuted();
+}
+
+void QGstreamerRecorderControl::setMuted(bool muted)
+{
+ m_session->setMuted(muted);
+}
+
+QDir QGstreamerRecorderControl::defaultDir() const
+{
+ QStringList dirCandidates;
+
+#if defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)
+ dirCandidates << QLatin1String("/home/user/MyDocs");
+#endif
+
+ dirCandidates << QDir::home().filePath("Documents");
+ dirCandidates << QDir::home().filePath("My Documents");
+ dirCandidates << QDir::homePath();
+ dirCandidates << QDir::currentPath();
+ dirCandidates << QDir::tempPath();
+
+ foreach (const QString &path, dirCandidates) {
+ QDir dir(path);
+ if (dir.exists() && QFileInfo(path).isWritable())
+ return dir;
+ }
+
+ return QDir();
+}
+
+QString QGstreamerRecorderControl::generateFileName(const QDir &dir, const QString &ext) const
+{
+
+ int lastClip = 0;
+ foreach(QString fileName, dir.entryList(QStringList() << QString("clip_*.%1").arg(ext))) {
+ int imgNumber = fileName.mid(5, fileName.size()-6-ext.length()).toInt();
+ lastClip = qMax(lastClip, imgNumber);
+ }
+
+ QString name = QString("clip_%1.%2").arg(lastClip+1,
+ 4, //fieldWidth
+ 10,
+ QLatin1Char('0')).arg(ext);
+
+ return dir.absoluteFilePath(name);
+}