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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qffmpegmediarecorder_p.h"
#include "qaudiodevice.h"
#include <private/qmediastoragelocation_p.h>
#include <private/qplatformcamera_p.h>
#include <private/qplatformscreencapture_p.h>
#include "qaudiosource.h"
#include "qffmpegaudioinput_p.h"
#include "qaudiobuffer.h"
#include "qffmpegencoder_p.h"
#include "qffmpegmediaformatinfo_p.h"
#include <qdebug.h>
#include <qeventloop.h>
#include <qstandardpaths.h>
#include <qmimetype.h>
#include <qloggingcategory.h>
Q_LOGGING_CATEGORY(qLcMediaEncoder, "qt.multimedia.encoder")
QT_BEGIN_NAMESPACE
QFFmpegMediaRecorder::QFFmpegMediaRecorder(QMediaRecorder *parent)
: QPlatformMediaRecorder(parent)
{
}
QFFmpegMediaRecorder::~QFFmpegMediaRecorder()
{
if (encoder)
encoder->finalize();
}
bool QFFmpegMediaRecorder::isLocationWritable(const QUrl &) const
{
return true;
}
void QFFmpegMediaRecorder::handleSessionError(QMediaRecorder::Error code, const QString &description)
{
error(code, description);
stop();
}
void QFFmpegMediaRecorder::record(QMediaEncoderSettings &settings)
{
if (!m_session || state() != QMediaRecorder::StoppedState)
return;
const auto hasVideo = (m_session->camera() && m_session->camera()->isActive())
|| (m_session->screenCapture() && m_session->screenCapture()->isActive());
const auto hasAudio = m_session->audioInput() != nullptr;
if (!hasVideo && !hasAudio) {
error(QMediaRecorder::ResourceError, QMediaRecorder::tr("No video or audio input"));
return;
}
const auto audioOnly = settings.videoCodec() == QMediaFormat::VideoCodec::Unspecified;
auto primaryLocation = audioOnly ? QStandardPaths::MusicLocation : QStandardPaths::MoviesLocation;
auto container = settings.mimeType().preferredSuffix();
auto location = QMediaStorageLocation::generateFileName(outputLocation().toLocalFile(), primaryLocation, container);
QUrl actualSink = QUrl::fromLocalFile(QDir::currentPath()).resolved(location);
qCDebug(qLcMediaEncoder) << "recording new video to" << actualSink;
qCDebug(qLcMediaEncoder) << "requested format:" << settings.fileFormat() << settings.audioCodec();
Q_ASSERT(!actualSink.isEmpty());
encoder = new QFFmpeg::Encoder(settings, actualSink);
encoder->setMetaData(m_metaData);
connect(encoder, &QFFmpeg::Encoder::durationChanged, this, &QFFmpegMediaRecorder::newDuration);
connect(encoder, &QFFmpeg::Encoder::finalizationDone, this, &QFFmpegMediaRecorder::finalizationDone);
connect(encoder, &QFFmpeg::Encoder::error, this, &QFFmpegMediaRecorder::handleSessionError);
auto *audioInput = m_session->audioInput();
if (audioInput)
encoder->addAudioInput(static_cast<QFFmpegAudioInput *>(audioInput));
auto *camera = m_session->camera();
if (camera)
encoder->addCamera(camera);
auto *screenCapture = m_session->screenCapture();
if (screenCapture)
encoder->addScreenCapture(screenCapture);
durationChanged(0);
stateChanged(QMediaRecorder::RecordingState);
actualLocationChanged(QUrl::fromLocalFile(location));
encoder->start();
}
void QFFmpegMediaRecorder::pause()
{
if (!m_session || state() != QMediaRecorder::RecordingState)
return;
Q_ASSERT(encoder);
encoder->setPaused(true);
stateChanged(QMediaRecorder::PausedState);
}
void QFFmpegMediaRecorder::resume()
{
if (!m_session || state() != QMediaRecorder::PausedState)
return;
Q_ASSERT(encoder);
encoder->setPaused(false);
stateChanged(QMediaRecorder::RecordingState);
}
void QFFmpegMediaRecorder::stop()
{
if (!m_session || state() == QMediaRecorder::StoppedState)
return;
auto * input = m_session ? m_session->audioInput() : nullptr;
if (input)
static_cast<QFFmpegAudioInput *>(input)->setRunning(false);
qCDebug(qLcMediaEncoder) << "stop";
// ### all of the below should be done asynchronous. finalize() should do it's work in a thread
// to avoid blocking the UI in case of slow codecs
if (encoder) {
encoder->finalize();
encoder = nullptr;
}
}
void QFFmpegMediaRecorder::finalizationDone()
{
stateChanged(QMediaRecorder::StoppedState);
}
void QFFmpegMediaRecorder::setMetaData(const QMediaMetaData &metaData)
{
if (!m_session)
return;
m_metaData = metaData;
}
QMediaMetaData QFFmpegMediaRecorder::metaData() const
{
return m_metaData;
}
void QFFmpegMediaRecorder::setCaptureSession(QPlatformMediaCaptureSession *session)
{
auto *captureSession = static_cast<QFFmpegMediaCaptureSession *>(session);
if (m_session == captureSession)
return;
if (m_session)
stop();
m_session = captureSession;
if (!m_session)
return;
}
QT_END_NAMESPACE
#include "moc_qffmpegmediarecorder_p.cpp"
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