warnings gstreamer stream cam+screen

0:00:00.528519401 6383 0x559cebc100 WARN v4l2 gstv4l2object.c:2372:gst_v4l2_object_add_interlace_mode:0x559cdf5800 Failed to determine interlace mode
0:00:00.528615495 6383 0x559cebc100 WARN v4l2 gstv4l2object.c:2372:gst_v4l2_object_add_interlace_mode:0x559cdf5800 Failed to determine interlace mode
0:00:00.528663464 6383 0x559cebc100 WARN v4l2 gstv4l2object.c:2372:gst_v4l2_object_add_interlace_mode:0x559cdf5800 Failed to determine interlace mode
0:00:00.528756329 6383 0x559cebc100 WARN v4l2 gstv4l2object.c:4430:gst_v4l2_object_probe_caps:<nvv4l2h264enc0:src> Failed to probe pixel aspect ratio with VIDIOC_CROPCAP: Unknown error -1
0:00:00.530831749 6383 0x559cebc100 WARN v4l2 gstv4l2object.c:4430:gst_v4l2_object_probe_caps:<nvv4l2decoder0:src> Failed to probe pixel aspect ratio with VIDIOC_CROPCAP: Unknown error -1
0:00:00.530885551 6383 0x559cebc100 WARN v4l2 gstv4l2object.c:2372:gst_v4l2_object_add_interlace_mode:0x559ce17600 Failed to determine interlace mode
0:00:00.535819517 6383 0x559cf90400 WARN v4l2src gstv4l2src.c:692:gst_v4l2src_query:<v4l2src0> Can't give latency since framerate isn't fixated !
0:00:00.535916601 6383 0x559cf90400 WARN aggregator gstaggregator.c:1717:gst_aggregator_query_latency_unlocked:<glue> Latency query failed
0:00:00.535954986 6383 0x559cf90400 WARN aggregator gstaggregator.c:1717:gst_aggregator_query_latency_unlocked:<mux> Latency query failed
0:00:00.545172813 6383 0x559cf90630 WARN v4l2bufferpool gstv4l2bufferpool.c:790:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> Uncertain or not enough buffers, enabling copy threshold
0:00:00.847263456 6383 0x559cf90590 WARN v4l2bufferpool gstv4l2bufferpool.c:1057:gst_v4l2_buffer_pool_start:<nvv4l2h264enc0:pool:src> Uncertain or not enough buffers, enabling copy threshold
0:00:00.904748392 6383 0x7f64003f20 WARN v4l2bufferpool gstv4l2bufferpool.c:1503:gst_v4l2_buffer_pool_dqbuf:<nvv4l2h264enc0:pool:src> Driver should never set v4l2_buffer.field to ANY
0:00:00.909815015 6383 0x559cf90400 WARN flvmux gstflvmux.c:1282:gst_flv_mux_write_header:<mux> downstream did not handle seeking query
0:00:00.909866525 6383 0x559cf90400 WARN flvmux

gstflvmux.c:1290:gst_flv_mux_write_header:<mux> downstream is not seekable, but streamable=false. Will ignore that and create streamable output instead
0:00:01.274668414 6383 0x7f5002d8a0 WARN v4l2 gstv4l2object.c:4430:gst_v4l2_object_probe_caps:<nvv4l2decoder0:src> Failed to probe pixel aspect ratio with VIDIOC_CROPCAP: Unknown error -1
0:00:01.274748206 6383 0x7f5002d8a0 WARN v4l2 gstv4l2object.c:2372:gst_v4l2_object_add_interlace_mode:0x559ce17600 Failed to determine interlace mode
0:00:01.277324356 6383 0x7f5002d8a0 WARN v4l2videodec gstv4l2videodec.c:1632:gst_v4l2_video_dec_decide_allocation:<nvv4l2decoder0> Duration invalid, not setting latency
0:00:01.289789532 6383 0x559cf90590 WARN nvcompositor gstnvcompositor.c:923:gst_nvcompositor_negotiated_caps:<glue> Release old pool
0:00:01.291311617 6383 0x7f64003f20 WARN v4l2allocator gstv4l2allocator.c:1498:gst_v4l2_allocator_dqbuf:<nvv4l2h264enc0:pool:src:allocator> V4L2 provided buffer has bytesused 0 which is too small to include data_offset 0
0:00:01.291620055 6383 0x559cf90590 WARN videoencoder gstvideoencoder.c:678:gst_video_encoder_setcaps:<nvv4l2h264enc0> rejected caps video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080, framerate=(fraction)25/1, format=(string)I420, pixel-aspect-ratio=(fraction)15/11
0:00:01.300721893 6383 0x7f500084f0 WARN v4l2bufferpool gstv4l2bufferpool.c:1503:gst_v4l2_buffer_pool_dqbuf:<nvv4l2decoder0:pool:src> Driver should never set v4l2_buffer.field to ANY
0:00:01.304732524 6383 0x559cf90590 WARN v4l2bufferpool gstv4l2bufferpool.c:1057:gst_v4l2_buffer_pool_start:<nvv4l2h264enc0:pool:src> Uncertain or not enough buffers, enabling copy threshold