飞凌嵌入式 gstreamer播放rtsp_嵌入式板卡gstreamer 可以播放网络上的视频吗

1. 开发环境：
   飞凌RK3568 Gstreamer 网络摄像头（rtsp）
2. 主要代码

GstPlayer::GstPlayer(QString url,QObject *parent)
    : QObject(parent),m_url(url)
{
    s_obj = this;
    // 创建管道
    data.gst_src         = gst_element_factory_make("rtspsrc", "source");
    if("H264" == App::encoding)
        data.gst_depay       = gst_element_factory_make("rtph264depay","depay");
    else
        data.gst_depay       = gst_element_factory_make("rtph265depay","depay");

    data.gst_queue       = gst_element_factory_make("queue", "queue");

    if("H264" == App::encoding)
        data.gst_parser      = gst_element_factory_make("h264parse", "parse");
    else
        data.gst_parser      = gst_element_factory_make("h265parse", "parse");

    data.gst_decoder     = gst_element_factory_make("mppvideodec", "deodec");
    data.gst_sink        = gst_element_factory_make ("waylandsink","sink");

    data.gst_pipeline    = gst_pipeline_new ("new-pipeline");

    if (!data.gst_pipeline || !data.gst_src || !data.gst_depay || !data.gst_queue
            || !data.gst_parser || !data.gst_decoder || !data.gst_sink)
    {
        emit signal_errorinfo("可视化初始化失败失败.");
        emit signal_stateinfo("可视化初始化失败失败.");
        return;
    }

    //设置每个元素的参数, 需要查看gst-inspect-1.0 rtspsrc
    g_object_set (G_OBJECT(data.gst_src), "location",m_url.toStdString().c_str(),NULL);
    g_object_set(G_OBJECT(data.gst_sink), "window-x", MIPI_WIDTH, NULL);
    g_object_set(G_OBJECT(data.gst_sink), "window-y", 0, NULL);
    int hdmiWidth = 1280;
    int hdmiHeight = 800;

    QStringList ra =  App::resolutionratio.split('*');
    if(2 == ra.count())
    {
        hdmiWidth = ra.at(0).toInt();
        hdmiHeight = ra.at(1).toInt();
    }

    g_object_set(G_OBJECT(data.gst_sink), "window-width", hdmiWidth, NULL);
    g_object_set(G_OBJECT(data.gst_sink), "window-height", hdmiHeight, NULL);
    g_object_set(G_OBJECT(data.gst_sink), "fill-mode", 0, NULL);
    g_object_set(G_OBJECT(data.gst_sink), "sync", false, NULL);

    // 将多个插件连接起来
    gst_bin_add_many(GST_BIN(data.gst_pipeline),data.gst_src,data.gst_depay,data.gst_queue,data.gst_parser,data.gst_decoder, data.gst_sink, NULL);

    //连接
    if(gst_element_link_many(data.gst_depay,data.gst_queue,data.gst_parser,data.gst_decoder, data.gst_sink, NULL) == 0 )
    {
        emit signal_errorinfo("可视化连接失败.");
        emit signal_stateinfo("可视化连接失败.");
        return;
    }

    //查看元素，以为rtspsrc的Availability为Sometimes，所以要动态绑定pad
    g_signal_connect (data.gst_src, "pad-added", G_CALLBACK (on_pad_added), &data);

    //绑定UI界面
    //gst_video_overlay_set_window_handle (GST_VIDEO_OVERLAY (data.gst_sink), this->winId());

    //将管道的消息总线上的新消息的监视添加到默认的GLib主上下文，这是下面我们的GLib主循环附加到的主上下文
    data.loop = g_main_loop_new (NULL, FALSE);
    data.bus = gst_pipeline_get_bus (GST_PIPELINE (data.gst_pipeline));
    gst_bus_add_watch (data.bus, bus_callback, data.loop);
    gst_object_unref (data.bus);
}

GstPlayer::~GstPlayer()
{
    g_main_loop_unref (data.loop);
    gst_object_unref (data.bus);
    gst_element_set_state (data.gst_pipeline, GST_STATE_NULL);
    gst_object_unref (data.gst_pipeline);
}

void GstPlayer::play()
{
    GstStateChangeReturn ret = gst_element_set_state (data.gst_pipeline, GST_STATE_PLAYING);
    if (ret == GST_STATE_CHANGE_FAILURE)
    {
        emit signal_errorinfo("可视化播放失败.");
        emit signal_stateinfo("可视化播放失败.");
        gst_object_unref (data.gst_pipeline);
        return;
    }

    g_main_loop_run (data.loop);
}

void GstPlayer::replay()
{
    stop();
    QUIHelper::sleep(50);
    g_object_set (G_OBJECT(data.gst_src), "location",m_url.toStdString().c_str(),NULL);
    play();
}

void GstPlayer::stop()
{
    GstStateChangeReturn ret = gst_element_set_state (data.gst_pipeline, GST_STATE_NULL);
    if (ret == GST_STATE_CHANGE_FAILURE)
    {
        emit signal_errorinfo("可视化停止失败.");
        emit signal_stateinfo("可视化停止失败.");
        gst_object_unref (data.gst_pipeline);
        return;
    }
}
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完整代码