gstreamer-video-source-rtp.cpp

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// Copyright (C) 2024 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include <QtGstreamerMediaPluginImpl/private/qgst_p.h>

#include <QtGstreamerMediaPluginImpl/private/qgstpipeline_p.h>

#include <QtMultimediaWidgets/qtmultimediawidgetsglobal.h>

#include <QtMultimedia/qaudiooutput.h>

#include <QtMultimedia/qgstreamervideosource.h>

#include <QtWidgets/qapplication.h>

#include <QtCore/qcommandlineparser.h>

using namespace std::chrono_literals;

using namespace Qt::Literals;

struct GStreamerRtpStreamSender

    GStreamerRtpStreamSender()

        element = QGstElement::createFromPipelineDescription(

                "videotestsrc ! jpegenc ! rtpjpegpay ! udpsink host=127.0.0.1 port=50004"_ba);

        pipeline.add(element);

        pipeline.setStateSync(GstState::GST_STATE_PLAYING);

        pipeline.dumpGraph("sender");

    ~GStreamerRtpStreamSender() { pipeline.setStateSync(GstState::GST_STATE_NULL); }

    QGstPipeline pipeline = QGstPipeline::create("UdpSend");

    QGstElement element;

};

int main(int argc, char **argv)

    qputenv("QT_MEDIA_BACKEND", "gstreamer");

    gst_init(&argc, &argv);

    GStreamerRtpStreamSender sender;

    QApplication app(argc, argv);

    QByteArray pipelineString =

            R"(udpsrc port=50004 ! application/x-rtp,encoding=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! videoconvert)"_ba;

    QVideoWidget wid;

    wid.show();

    QMediaCaptureSession session;

    session.setVideoSink(wid.videoSink());

    auto *source = new QGStreamerVideoSource(pipelineString, &session);

    session.setNativeVideoSource(source);

    source->start();

    return QApplication::exec();