<div dir="ltr"><div>Hi,</div><div> </div><div>I see, and the rule is pretty straight forward, 2 clips can't fully overlap in a layer.</div><div> </div><div>- Thibault </div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Sep 1, 2020 at 10:39 PM xmufzy <<a href="mailto:xmufzy@foxmail.com">xmufzy@foxmail.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Well, the problem is I failed to add a new clip to the layer, So I need to follow the overlap rule 0:00:00.082988805 31704 0x622200 INFO GST_ELEMENT_PADS gstelement.c:752:gst_element_add_pad:<videosrcbin> adding pad 'src' 0:00:00.082991746 31704 0x622200 INFO GST_ELEMENT_PADS gstelement.c:999:gst_element_get_static_pad: found pad queue1:sink 0:00:00.083017675 31704 0x622200 INFO GST_PADS gstpad.c:4309:gst_pad_peer_query:<queue1:sink> pad has no peer 0:00:00.083715742 31704 0x622200 INFO GST_PADS gstpad.c:2378:gst_pad_link_prepare: trying to link videosrcbin:src and src:proxypad19 0:00:00.083722877 31704 0x622200 INFO GST_PADS gstpad.c:2586:gst_pad_link_full: linked videosrcbin:src and src:proxypad19, successful 0:00:00.083725022 31704 0x622200 INFO GST_EVENT gstevent.c:1610:gst_event_new_reconfigure: creating reconfigure event 0:00:00.083728769 31704 0x622200 INFO GST_EVENT gstpad.c:5891:gst_pad_send_event_unchecked:<track-element-capsfilter:src> Received event on flushing pad. Discarding 0:00:00.083787272 31704 0x622200 INFO nlecomposition nlecomposition.c:884:_add_action_locked:<video_nlecomposition1> Adding Action for function: 0x8d92c0:_add_object_func 0:00:00.083802242 31704 0x622200 INFO gestree ges-timeline-tree.c:1007:set_edit_move_values:<GESVideoUriSource@0x8c2390> videourisource1 will move by setting start to 0:00:02.000000000 0:00:00.083808188 31704 0x622200 INFO gestree ges-timeline-tree.c:1236:set_edit_trim_end_values:<GESVideoUriSource@0x8c2390> videourisource1 will trim end by setting duration to 0:00:09.000000000 0:00:00.083820383 31704 0x622200 INFO gestree ges-timeline-tree.c:753:check_overlap_with_element: videourisource1 (under uriclip1) [0:00:02.000000000 - 0:00:11.000000000] (layer: 0) (track :<gesvideotrack0>) and videourisource0 (under uriclip0) [0:00:00.000000000 - 0:00:12.000000000] (layer: 0) (track :<gesvideotrack0>) fully overlap 0:00:00.083834717 31704 0x622200 INFO ges ges-track.c:1218:ges_track_add_element_full:<gesvideotrack0> Could not add the track element videourisource1<0x8c2390> [ 0:00:02.000000000 (0:00:03.000000000) - 0:00:09.000000000(0:00:12.000000000) layer: 0] to the track because it breaks the timeline configuration rules 0:00:00.083847483 31704 0x622200 INFO nlecomposition nlecomposition.c:884:_add_action_locked:<video_nlecomposition1> Adding Action for function: 0x8d8080:_remove_object_func 0:00:00.083857936 31704 0x622200 INFO ges ges-clip.c:4491:ges_clip_add_child_to_track:<GESUriClip@0x8c05a0> Could not add the track element videourisource1<0x8c2390> [ 0:00:02.000000000 (0:00:03.000000000) - 0:00:09.000000000(0:00:12.000000000) layer: 0] to the track <gesvideotrack0> 0:00:00.083877078 31704 0x622200 INFO ges ges-layer.c:779:ges_layer_add_clip_full:<GESLayer@0x8856e0> Could not add the clip uriclip1<0x8c05a0> [ 0:00:02.000000000 (0:00:03.000000000) - 0:00:09.000000000(0:00:12.000000000) layer: 0] to the timeline <gestimeline0> 0:00:00.083886577 31704 0x622200 WARN ges ges-layer.c:787:ges_layer_add_clip_full:<gestimeline0> Adding the clip uriclip1<0x8c05a0> [ 0:00:02.000000000 (0:00:03.000000000) - 0:00:09.000000000(0:00:12.000000000) layer: 0] to the timeline failed: The source "videourisource0" (parent: "uriclip0") would totally overlap the source "videourisource1" (parent: "uriclip1") in the track "gesvideotrack0" ** ERROR:./poc_ges.cpp:108:int main(int, gchar**): assertion failed: (ges_layer_add_clip (layer, src)) Bail out! ERROR:./poc_ges.cpp:108:int main(int, gchar**): assertion failed: (ges_layer_add_clip (layer, src)) -- Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div>