[video_player_avplay] There are GStreamer errors in the log

[MasterSon05]

When I run the example application in the video_player_avplay plugin, I see various GStreamer error messages in the log. Clear videos in the application work(although there are various errors in the logs), but the application crashes in DRM videos. I think dynamic libraries are somehow not loading correctly.

Logs:

Launching tizen/flutter/generated_main.dart on Tizen UE43AU8000UXTK in debug mode...
The partner_cert profile is used for signing.
Building a Tizen application in debug mode...                      51.5s
✓ Built build/tizen/tpk/org.tizen.video_player_avplay_example-1.0.0.tpk (35.1MB).
Latest build already installed.
[I] [EGL_DBG]: eglGetDisplay:2119, Winsys [tizen] path
[I] [EGL_DBG]: eglInitialize:2266, [Samsung][libmali.so][rel]: Rev: v1.r23p0-01rel0.6a28cba6cf998d0bf3a65244799603ad, Winsys: tizen + fbdev, nikem(0), nikel(1), internal AFBC disable
Syncing files to device Tizen UE43AU8000UXTK...                     70ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

A Dart VM Service on Tizen UE43AU8000UXTK is available at: http://127.0.0.1:59536/DUM9zpIfkPc=/
[E] 
(process:13792): GLib-CRITICAL **: 22:51:31.370: g_path_get_basename: assertion 'file_name != NULL' failed
[E] 
(<unknown>:13792): GStreamer-WARNING **: 22:51:31.513: Failed to load plugin '/opt/usr/apps/org.tizen.video_player_avplay_example/lib/libgsthls.so': libclearkey.so.0: cannot open shared object file: Operation not permitted
[I] size of instance = 1240
[I] size of class = 1428
[I] size of basesrc = 448
[I] size of basesrcclass = 404
[E] 
(<unknown>:13792): GLib-GObject-WARNING **: 22:51:31.973: g_object_set_is_valid_property: object class 'GstHttpDemux' has no property named 'vod-type'
(<unknown>:13792): GLib-GObject-WARNING **: 22:51:31.973: g_object_set_is_valid_property: object class 'GstHttpDemux' has no property named 'http_fragment_mp4'
[E] 
(<unknown>:13792): GLib-GObject-WARNING **: 22:51:32.380: g_object_set_is_valid_property: object class 'GstMultiQueue' has no property named 'timeout-for-buffering'
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:32.386: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:32.387: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:32.387: gst_pad_link_full: assertion 'GST_IS_PAD (srcpad)' failed
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:32.387: gst_pad_add_probe: assertion 'GST_IS_PAD (pad)' failed
The Flutter DevTools debugger and profiler on Tizen UE43AU8000UXTK is available at: [http://127.0.0.1:9101?uri=http://127.0.0.1:59536/DUM9zpIfkPc=/](http://127.0.0.1:9101/?uri=http://127.0.0.1:59536/DUM9zpIfkPc=/)
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:32.895: gst_structure_new_empty: assertion 'gst_structure_validate_name (name)' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.993: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.993: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.993: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.994: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.995: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.995: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.997: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.997: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.997: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.998: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:32.998: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.008: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.009: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.009: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.009: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.009: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.010: gst_event_new_caps: assertion 'gst_caps_is_fixed (caps)' failed
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.010: gst_pad_push_event: assertion 'GST_IS_EVENT (event)' failed
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.064: gst_mini_object_copy: assertion 'mini_object != NULL' failed
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.064: gst_caps_get_structure: assertion 'GST_IS_CAPS (caps)' failed
[E] 
(<unknown>:13792): GStreamer-WARNING **: 22:51:33.067: gstpad.c:5204:store_sticky_event:<omxaudiodec0:src> Sticky event misordering, got 'segment' before 'caps'
[E] 
(<unknown>:13792): GStreamer-WARNING **: 22:51:33.077: gstpad.c:5204:store_sticky_event:<omxvideodec0:src> Sticky event misordering, got 'segment' before 'caps'
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.077: gst_caps_get_structure: assertion 'GST_IS_CAPS (caps)' failed
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.077: gst_structure_get_int: assertion 'structure != NULL' failed
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.077: gst_structure_get_int: assertion 'structure != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.077: g_str_has_prefix: assertion 'str != NULL' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.077: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.161: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GStreamer-WARNING **: 22:51:33.162: gstpad.c:5204:store_sticky_event:<mmaudiosink0:sink> Sticky event misordering, got 'segment' before 'caps'
[E] 
(<unknown>:13792): GStreamer-WARNING **: 22:51:33.249: gstpad.c:5204:store_sticky_event:<directvideosink:sink> Sticky event misordering, got 'segment' before 'caps'
[E] 
** (<unknown>:13792): CRITICAL **: 22:51:33.250: is_repeated_pts: assertion 'sink->is_first_putimage != TRUE' failed
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.250: gst_clock_get_time: assertion 'GST_IS_CLOCK (clock)' failed
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:51:33.254: gst_clock_get_time: assertion 'GST_IS_CLOCK (clock)' failed
(<unknown>:13792): GLib-CRITICAL **: 22:51:33.254: g_str_has_prefix: assertion 'str != NULL' failed
[E] 
(<unknown>:13792): GLib-GObject-WARNING **: 22:51:33.310: g_object_get_is_valid_property: object class 'GstHttpDemux' has no property named 'is-live'
[E] [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(SetLooping, Player set looping failed, null, null)
#0      VideoPlayerAvplayApi.setLooping (package:video_player_avplay/src/messages.g.dart:500:7)
<asynchronous suspension>
#1      VideoPlayerController._applyLooping (package:video_player_avplay/video_player.dart:538:5)
<asynchronous suspension>
[E] [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(SetVolume, Player set volume failed, null, null)
#0      VideoPlayerAvplayApi.setVolume (package:video_player_avplay/src/messages.g.dart:522:7)
<asynchronous suspension>
#1      VideoPlayerController._applyVolume (package:video_player_avplay/video_player.dart:592:5)
<asynchronous suspension>
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:52:06.631: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
[E] 
(<unknown>:13792): GStreamer-CRITICAL **: 22:52:07.880: gst_element_get_static_pad: assertion 'GST_IS_ELEMENT (element)' failed
[E] 
(<unknown>:13792): GLib-GObject-WARNING **: 22:52:08.256: g_object_get_is_valid_property: object class 'GstHttpDemux' has no property named 'is-live'

Environment:
TV: UE43AU8000UXTK
api-version="6.0"
PC: macbook pro M1 pro
flutter-tizen: 3.13.8

[xuelian-bai]

Hi, this issue is caused by security policy of samsung TV. In avplay plugin, to play drm video, you will need a USB certificate, if your company is samsung partner, we will provide this certificate, please send mail to me, xuelian.bai@samsung.com.

[xuelian-bai]

You can also use https://github.com/flutter-tizen/plugins/tree/master/packages/video_player_videohole instead

[hyue7]

This is the security issue:
Failed to load plugin '/opt/usr/apps/org.tizen.video_player_avplay_example/lib/libgsthls.so': libclearkey.so.0: cannot open shared object file: Operation not permitted

On Tizen 7.0, only need partner level certificate. See this docment.
On Tizen 6.0/6.5, must need a USB certificate. You can contact with yue7.huang@samsung.com or xuelian.bai@samsung.com

[MasterSon05]

Thank you for your answers. With the USB certificate, I was able to successfully play the DRM contents in the example application.