2 files changed, 230 insertions, 0 deletions
diff --git a/tests/auto/unit/multimedia/qmediacapture_gstreamer/CMakeLists.txt b/tests/auto/unit/multimedia/qmediacapture_gstreamer/CMakeLists.txt
new file mode 100644
index 000000000..209be5883
--- /dev/null
+++ b/tests/auto/unit/multimedia/qmediacapture_gstreamer/CMakeLists.txt
@@ -0,0 +1,18 @@
+# Copyright (C) 2024 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_qmediacapture_gstreamer Test:
+#####################################################################
+
+qt_internal_add_test(tst_qmediacapture_gstreamer
+    SOURCES
+        tst_qmediacapture_gstreamer.cpp
+        ../../../shared/qscopedenvironmentvariable.h
+    INCLUDE_DIRECTORIES
+        ../../../shared
+    LIBRARIES
+        Qt::Multimedia
+        Qt::MultimediaPrivate
+        Qt::QGstreamerMediaPluginPrivate
+)
diff --git a/tests/auto/unit/multimedia/qmediacapture_gstreamer/tst_qmediacapture_gstreamer.cpp b/tests/auto/unit/multimedia/qmediacapture_gstreamer/tst_qmediacapture_gstreamer.cpp
new file mode 100644
index 000000000..7fe6a06ac
--- /dev/null
+++ b/tests/auto/unit/multimedia/qmediacapture_gstreamer/tst_qmediacapture_gstreamer.cpp
@@ -0,0 +1,212 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QtTest/QtTest>
+#include <QtMultimedia/QAudioDevice>
+#include <QtMultimedia/QAudioInput>
+#include <QtMultimedia/QAudioOutput>
+#include <QtMultimedia/QCamera>
+#include <QtMultimedia/QMediaCaptureSession>
+#include <QtMultimedia/private/qgstreamer_platformspecificinterface_p.h>
+#include <QtMultimedia/private/qplatformmediacapture_p.h>
+#include <QtQGstreamerMediaPlugin/private/qgstpipeline_p.h>
+
+#include <qscopedenvironmentvariable.h>
+
+#include <memory>
+
+// NOLINTBEGIN(readability-convert-member-functions-to-static)
+
+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();
+
+    void makeCustomGStreamerCamera_fromPipelineDescription();
+    void makeCustomGStreamerCamera_fromPipelineDescription_multipleItems();
+    void makeCustomGStreamerCamera_fromPipelineDescription_userProvidedGstElement();
+
+private:
+    std::unique_ptr<QMediaCaptureSession> session;
+
+    QGStreamerPlatformSpecificInterface *gstInterface()
+    {
+        return QGStreamerPlatformSpecificInterface::instance();
+    }
+
+    GstPipeline *getGstPipeline()
+    {
+        auto *iface = QGStreamerPlatformSpecificInterface::instance();
+        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(QGStreamerPlatformSpecificInterface::instance());
+}
+
+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");
+}
+
+void tst_QMediaCaptureGStreamer::makeCustomGStreamerCamera_fromPipelineDescription()
+{
+    auto pipelineString = "videotestsrc name=mySrc"_ba;
+    QCamera *cam =
+            gstInterface()->makeCustomGStreamerCamera(pipelineString, /*parent=*/session.get());
+
+    session->setCamera(cam);
+    cam->start();
+
+    QGstPipeline pipeline = getPipeline();
+    QTEST_ASSERT(pipeline);
+    QVERIFY(pipeline.findByName("mySrc"));
+    dumpGraph("makeCustomGStreamerCamera_fromPipelineDescription");
+}
+
+void tst_QMediaCaptureGStreamer::makeCustomGStreamerCamera_fromPipelineDescription_multipleItems()
+{
+    auto pipelineString = "videotestsrc name=mySrc  ! gamma gamma=2.0 name=myFilter"_ba;
+    QCamera *cam =
+            gstInterface()->makeCustomGStreamerCamera(pipelineString, /*parent=*/session.get());
+
+    session->setCamera(cam);
+    cam->start();
+
+    QGstPipeline pipeline = getPipeline();
+    QTEST_ASSERT(pipeline);
+    QVERIFY(pipeline.findByName("mySrc"));
+    QVERIFY(pipeline.findByName("myFilter"));
+    dumpGraph("makeCustomGStreamerCamera_fromPipelineDescription_multipleItems");
+}
+
+void tst_QMediaCaptureGStreamer::
+        makeCustomGStreamerCamera_fromPipelineDescription_userProvidedGstElement()
+{
+    QGstElement element = QGstElement::createFromPipelineDescription("videotestsrc");
+    gst_element_set_name(element.element(), "mySrc");
+
+    QCamera *cam =
+            gstInterface()->makeCustomGStreamerCamera(element.element(), /*parent=*/session.get());
+
+    session->setCamera(cam);
+    cam->start();
+
+    QGstPipeline pipeline = getPipeline();
+    QTEST_ASSERT(pipeline);
+    QCOMPARE(pipeline.findByName("mySrc"), element);
+    dumpGraph("makeCustomGStreamerCamera_fromPipelineDescription_userProvidedGstElement");
+
+    element.set("foreground-color", 0xff0000);
+    dumpGraph("makeCustomGStreamerCamera_fromPipelineDescription_userProvidedGstElement2");
+}
+
+QTEST_GUILESS_MAIN(tst_QMediaCaptureGStreamer)
+
+#include "tst_qmediacapture_gstreamer.moc"