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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QtTest/QtTest>
#include <QtMultimedia/QMediaCaptureSession>
#include <QtMultimedia/QAudioDevice>
#include <QtMultimedia/QAudioInput>
#include <QtMultimedia/QAudioOutput>
#include <QtMultimedia/private/qplatformmediacapture_p.h>
#include <QtMultimedia/private/qgstreamer_platformspecificinterface_p.h>
#include <QtQGstreamerMediaPlugin/private/qgstpipeline_p.h>
#include <qscopedenvironmentvariable.h>
#include <memory>
QT_USE_NAMESPACE
using namespace Qt::Literals;
class tst_QMediaCaptureGStreamer : public QObject
{
Q_OBJECT
public:
tst_QMediaCaptureGStreamer();
public slots:
void init();
void cleanup();
private slots:
void mediaIntegration_hasPlatformSpecificInterface();
void constructor_preparesGstPipeline();
void audioInput_makeCustomGStreamerAudioInput_fromPipelineDescription();
void audioOutput_makeCustomGStreamerAudioOutput_fromPipelineDescription();
private:
std::unique_ptr<QMediaCaptureSession> session;
static QGStreamerPlatformSpecificInterface *gstInterface()
{
return dynamic_cast<QGStreamerPlatformSpecificInterface *>(
QPlatformMediaIntegration::instance()->platformSpecificInterface());
}
GstPipeline *getGstPipeline()
{
QGStreamerPlatformSpecificInterface *iface = gstInterface();
return iface ? iface->gstPipeline(session.get()) : nullptr;
}
QGstPipeline getPipeline()
{
return QGstPipeline{
getGstPipeline(),
QGstPipeline::NeedsRef,
};
}
void dumpGraph(const char *fileNamePrefix)
{
GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(getGstPipeline()),
GstDebugGraphDetails(GST_DEBUG_GRAPH_SHOW_VERBOSE),
fileNamePrefix);
}
};
tst_QMediaCaptureGStreamer::tst_QMediaCaptureGStreamer()
{
qputenv("QT_MEDIA_BACKEND", "gstreamer");
}
void tst_QMediaCaptureGStreamer::init()
{
session = std::make_unique<QMediaCaptureSession>();
}
void tst_QMediaCaptureGStreamer::cleanup()
{
session.reset();
}
void tst_QMediaCaptureGStreamer::mediaIntegration_hasPlatformSpecificInterface()
{
QVERIFY(gstInterface());
}
void tst_QMediaCaptureGStreamer::constructor_preparesGstPipeline()
{
auto *rawPipeline = getGstPipeline();
QVERIFY(rawPipeline);
QGstPipeline pipeline{
rawPipeline,
QGstPipeline::NeedsRef,
};
QVERIFY(pipeline);
dumpGraph("constructor_preparesGstPipeline");
}
void tst_QMediaCaptureGStreamer::audioInput_makeCustomGStreamerAudioInput_fromPipelineDescription()
{
auto pipelineString =
"audiotestsrc wave=2 freq=200 name=myOscillator ! identity name=myConverter"_ba;
QAudioInput input{
gstInterface()->makeCustomGStreamerAudioInput(pipelineString),
};
session->setAudioInput(&input);
QGstPipeline pipeline = getPipeline();
QTEST_ASSERT(pipeline);
pipeline.finishStateChange();
QVERIFY(pipeline.findByName("myOscillator"));
QVERIFY(pipeline.findByName("myConverter"));
dumpGraph("audioInput_customAudioDevice");
}
void tst_QMediaCaptureGStreamer::
audioOutput_makeCustomGStreamerAudioOutput_fromPipelineDescription()
{
auto pipelineStringInput =
"audiotestsrc wave=2 freq=200 name=myOscillator ! identity name=myConverter"_ba;
QAudioInput input{
gstInterface()->makeCustomGStreamerAudioInput(pipelineStringInput),
};
session->setAudioInput(&input);
auto pipelineStringOutput = "identity name=myConverter ! fakesink name=mySink"_ba;
QAudioOutput output{
gstInterface()->makeCustomGStreamerAudioOutput(pipelineStringOutput),
};
session->setAudioOutput(&output);
QGstPipeline pipeline = getPipeline();
QTEST_ASSERT(pipeline);
pipeline.finishStateChange();
QVERIFY(pipeline.findByName("mySink"));
QVERIFY(pipeline.findByName("myConverter"));
dumpGraph("audioOutput_customAudioDevice");
}
QTEST_GUILESS_MAIN(tst_QMediaCaptureGStreamer)
#include "tst_qmediacapture_gstreamer.moc"
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