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Haihao Xiang authored
Otherwise MFXVideoVPP_Init will fail because it is called twice without a close. Example pipeline: gst-launch-1.0 videotestsrc ! msdkvpp ! glimagesink Sometimes glimagesink emits GST_EVENT_RECONFIGURE event which results in that MFXVideoVPP_Init is called twice, then get the negotiation failure below: 0:00:00.093715518 21218 0x558ef56231e0 ERROR msdkvpp gstmsdkvpp.c:995:gst_msdkvpp_initialize:<msdkvpp0> Init failed (undefined behavior) WARNING: from element /GstPipeline:pipeline0/GstMsdkVPP:msdkvpp0: not negotiated After applying this commit, the pipeline above may run without negotiation failure, however NV12 layout in dmabuf mode is selected in renegotiation, the display image is corrupted due to the NV12 issue which was mentioned in commit 3f2314a1. Some other fixes are needed to avoid renegotiation by default
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