Skip to content

textoverlay: Crash if using textoverlay in RTSP server pipeline with 32 bit build

Describe your issue

textoverlay,timeoverlay,clockoverlay elements being used in RTSP server cause crash when RTSP client disconnects

Expected Behavior

RTSP server continue working and new RTSP clients can connect again

Observed Behavior

RTSP server starts and client can connect to it and receive media. Once client disconnects RTSP server crashes

Setup

  • Tried with Windows 11 x64 Pro and Windows 8.1 x86 . Crash is exist on both
  • Tried with 32 bit GStreamer 1.22.3 and 1.20.0 . Both MSVC and MinGW version produce that crash.
  • 64 bit version of GStreamer doesn't have this problem

Steps to reproduce the bug

  • Use 32 bit GStreamer 1.22.3 on Windows
  • Run a basic RTSP server with textoverlay element
        GMainLoop* loop;
	GstRTSPServer* server;
	GstRTSPMountPoints* mounts;
	GstRTSPMediaFactory* factory;

	gst_init(&argc, &argv);
	gst_debug_set_threshold_for_name("*", GST_LEVEL_WARNING);

	loop = g_main_loop_new(NULL, FALSE);
	server = gst_rtsp_server_new();
	mounts = gst_rtsp_server_get_mount_points(server);
	factory = gst_rtsp_media_factory_new();
	gst_rtsp_media_factory_set_launch(factory, "videotestsrc is-live=true ! textoverlay ! x264enc ! rtph264pay name=pay0 pt=96");

	gst_rtsp_mount_points_add_factory(mounts, "/test", factory);
	g_object_unref(mounts);
	gst_rtsp_server_attach(server, NULL);

	g_print("stream ready at rtsp://127.0.0.1:8554/test\n");

	g_main_loop_run(loop);
  • Connect to the server with VLC player or rtspsrc
  • Wait while connected client started receiving media
  • Disconnect client

How reproducible is the bug?

Always reproducible

Screenshots if relevant

image

Solutions you have tried

Tried different versions of GStreamer, below are the results:

  • GStreamer 1.22.3 32 bit - Crash
  • GStreamer 1.20.0 32 bit - Crash
  • GStreamer 1.18.5 32 bit - works normally
  • GStreamer 1.18.5 64 bit - works normally
  • GStreamer 1.22.3 64 bit - works normally
Edited by abear45