QT app crash in Gstremer rtspsrc while calling g_free()

DkDkDk

I have mingw gstreamer 1.18.1 integrated in Qt 5.14.1 app.code compiles and run without error. Qt app get crash in release build. but in debug buid it show asswmbly code and hit break point in that code. after continue code app runs well.

                                                                                   
                                                                                   
1   ntdll!RtlRegisterSecureMemoryCacheCallback                      0x7ffbd4e569ff 
2   ntdll!EtwLogTraceEvent                                          0x7ffbd4e213b9 
3   ntdll!RtlRegisterSecureMemoryCacheCallback                      0x7ffbd4e54d68 
4   ntdll!EtwLogTraceEvent                                          0x7ffbd4e0c0a0 
5   ntdll!RtlGetCurrentServiceSessionId                             0x7ffbd4d8c514 
6   ntdll!RtlFreeHeap                                               0x7ffbd4d8b1e1 
7   msvcrt!free                                                     0x7ffbd406cadc 
8   gst_sdp_media_get_caps_from_media          gstsdpmessage.c 3723 0x6f607e42     
9   gst_rtspsrc_collect_payloads               gstrtspsrc.c    2144 0x2d704454     
10  gst_rtspsrc_create_stream                  gstrtspsrc.c    2268 0x2d704454     
11  gst_rtspsrc_open_from_sdp                  gstrtspsrc.c    7813 0x2d704454     
12  gst_rtspsrc_open                           gstrtspsrc.c    8066 0x2d704454     
13  gst_rtspsrc_ensure_open                    gstrtspsrc.c    8466 0x2d705cd8     
14  gst_rtspsrc_play                           gstrtspsrc.c    8492 0x2d705e43     
15  gst_rtspsrc_thread                         gstrtspsrc.c    9030 0x2d7084ad     
16  gst_task_func                              gsttask.c       328  0x6dccce10     
17  ??                                                              0x7ffb8f7f7782 
18  ??                                                              0x7ffb8f7f6ce1 
19  ??                                                              0x7ffb8f8252b7 
20  msvcrt!_beginthreadex                                           0x7ffbd408e634 
... <More>

I ckeck that this line at github https://github.com/GStreamer/gst-plugins-base/blob/4013b8003e78971dd01b055066c12f8aaadb8897/gst-libs/gst/sdp/gstsdpmessage.c#L3724

this happens when gstremer try to free some memory.

Christian Ehrlicher

Do not mix debug and release libs. Make sure the release Qt executable also links against the release gstreamer libs and the Debug executable against the debug libs.

DkDkDk

@Christian-Ehrlicher I downloaded gstreamer from this link https://gstreamer.freedesktop.org/data/pkg/windows/1.18.1/mingw/
gstreamer-1.0-devel-mingw-x86_64-1.18.1.msi and
gstreamer-1.0-mingw-x86_64-1.18.1.msi
I have installed them both in same folder. which should I used for relese and debug?

DkDkDk

Solved the issue by changing gstreamer version to 1.22.0. and deleting libgstd3d11.dll.
I guess this issue is due to windows CRT, its not allow to free memory which is allocated by other thread.