GStreamer 學習紀錄

playbin 會自動使用 autoaudiosink 和 autovideosink
下列程式碼可使用自己要的 sink

  pipeline =

      gst_parse_launch(

      "playbin uri=file:///opt/nvidia/deepstream/deepstream-5.0/samples/streams/sample_720p.mp4",

      NULL);

  GstElement *sink = gst_element_factory_make ("nveglglessink", "sink");

  g_object_set(G_OBJECT(pipeline), "video-sink", sink, NULL);

或者調整 registry rank

    GstRegistry *plugins_register = gst_registry_get();

    GstPluginFeature *nveglglessink = gst_registry_lookup_feature(plugins_register, "nveglglessink");

    if (nveglglessink == NULL) {

      g_printerr("gst_registry_lookup_feature return NULL \n");

      return 0;

    }

    guint nveglglessink_rank = gst_plugin_feature_get_rank(nveglglessink);

    g_print("nveglglessink rank=%u\n", nveglglessink_rank);

    gst_plugin_feature_set_rank(nveglglessink, GST_RANK_PRIMARY + 11);

    gst_object_unref(nveglglessink);

使用 gst-launch-1.0

$ gst-launch-1.0 playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm video-sink=nveglglessink