Blocked tee branch is causing blocked pipline

[Adam Langley]

Hi Sebastian,

I have done some more testing, unfortunately still with the same results.
This is my simple test case - I've switched it to use the videotestsrc and
software encoder - with the same results:

mkfifo fifo.h264

gst-launch-1.0 --gst-debug=4 videotestsrc name=src !
video/x-raw,width=1280,height=720,framerate=24/1 \
                    ! x264enc ! tee name=t t. ! queue \
                    ! video/x-h264,profile=high \
                    ! h264parse ! flvmux ! filesink location=test.flv \
                      t. ! queue max-size-buffers=0 ! filesink
location=fifo.h264


The logging output last line does say:

GST_STATES gstbin.c:2227:gst_bin_element_set_state:<filesink1> current NULL
pending VOID_PENDING, desired next READY

I don't really know what to make of that however.

If I drop the last line off (the "t. ! queu.....") then it runs immediately.

Regards,

Adam



On Thu, Sep 24, 2015 at 10:17 PM, Sebastian Dröge <sebastian at centricular.com
> wrote:

> On Mi, 2015-09-23 at 19:09 +0000, Adam Langley wrote:
> > Hi Sebastian,
> >
> > Thanks for the suggestion - unfortunately this doesn't change the
> > result. The pipeline still starts with:
> >
> > Setting pipeline to PAUSED ...
>
> Hard to say what the problem is without a testcase to reproduce the
> problem. Check the debug logs what the pipeline is waiting for. Also a
> backtrace of all threads can probably tell you.
>
> I would guess that some sink is waiting to preroll.
>
> --
> Sebastian Dröge, Centricular Ltd · http://www.centricular.com
>
>
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