trouble with my audio: intermettent and slow video output

Stefan Sauer ensonic at hora-obscura.de
Mon Oct 19 01:13:05 PDT 2015


On 10/17/2015 04:39 PM, Giacomo D wrote:
> *Hi everyone,
> I am developing a pipeline like in the image linked:*
>
> <http://gstreamer-devel.966125.n4.nabble.com/file/n4674133/pipeline.png> 


This image is too small to be able to read somthing.
>
> *When I start my pipeline I get this error like below and video output has a
> delay of like 15 seconds before of the beginning.
> *
>
> 0:00:02.311950508  9718      0x16e54f0 WARN                xcontext
> xvcontext.c:496:gst_xvcontext_check_xshm_calls: could not get shared memory
> of 4 bytes
> 0:00:02.319628157  9718      0x16e54f0 WARN                xcontext
> xvcontext.c:496:gst_xvcontext_check_xshm_calls: could not get shared memory
> of 4 bytes
Are there multiple xvimagesinks?


> 0:00:02.373980459  9718      0x1b9a1e0 FIXME                default
> gstutils.c:3766:gst_pad_create_stream_id_internal:<videotestsrc0:src>
> Creating random stream-id, consider implementing a deterministic way of
> creating a stream-id
>
>
> *After the start, the videos run slowly, the audio is intermittent and I get
> these errors:*
>
>
>
> 0:00:16.529630839  9718      0x1bbdca0 FIXME               basesink
> gstbasesink.c:3117:gst_base_sink_default_event:<video0> stream-start event
> without group-id. Consider implementing group-id handling in the upstream
> elements
> 0:00:16.549355614  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:16.549403751  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:16.555096650  9718      0x1bbe280 WARN         rtpjitterbuffer
> rtpjitterbuffer.c:487:calculate_skew: delta - skew: 0:00:13.023766875 too
> big, reset skew
> 0:00:16.746120007  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:16.746160463  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:16.908677214  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:16.908719256  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:17.032863436  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:17.032905398  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:17.165007154  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:17.165048331  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:17.299949715  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:17.299992032  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:17.444542562  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:17.444585049  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
> 0:00:17.596472387  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: Stanno per
> essere scartati molti buffer.
> 0:00:17.596515953  9718      0x1bbde80 WARN                basesink
> gstbasesink.c:2846:gst_base_sink_is_too_late:<video4> warning: There may be
> a timestamping problem, or this computer is too slow.
>
> *and so on...

You can run the pipleine with LC_ALL=C ... to make sure the messages are
in english.
Stefan
>
> Is there something that I do wrong?
>
> Thanks in advance,
> Giacomo*
>
>
>
>
>
>
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/trouble-with-my-audio-intermettent-and-slow-video-output-tp4674133.html
> Sent from the GStreamer-devel mailing list archive at Nabble.com.
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