"gst_bin_do_latency_func failed to query latency" on gstreamer android

[Potoman]

I test my pipe with a videotestsrc like this :

videotestsrc ! video/x-raw-rgb,width=400,height=480 ! ffmpegcolorspace ! tee
name=t videomixer name=mix sink_0::xpos=0 sink_0::ypos=0 sink_0::zorder=0
sink_1::xpos=0 sink_1::ypos=0 sink_1::zorder=1 sink_2::xpos=400
sink_2::ypos=0 sink_2::zorder=2 ! ffmpegcolorspace ! autovideosink
videotestsrc pattern=\"black\" ! video/x-raw-rgb,width=800,height=480 !
mix.sink_0 t. ! queue ! mix.sink_1 t. ! queue ! mix.sink_2

It's work fine. The goald is to place, side by side, the same video.

But, when I replace my src by an rtp plugin, like this :

udpsrc port=5000 caps=\"application/x-rtp, media=(string)video,
clock-rate=(int)90000, encoding-name=(string)RAW, sampling=(string)RGB,
depth=(string)8, width=(string)400, height=(string)480, payload=(int)96,
latency=(int)200\" ! rtpvrawdepay ! ffmpegcolorspace ! tee name=t videomixer
name=mix sink_0::xpos=0 sink_0::ypos=0 sink_0::zorder=0 sink_1::xpos=0
sink_1::ypos=0 sink_1::zorder=1 sink_2::xpos=400 sink_2::ypos=0
sink_2::zorder=2 ! ffmpegcolorspace ! autovideosink videotestsrc
pattern=\"black\" ! video/x-raw-rgb,width=800,height=480 ! mix.sink_0 t. !
queue ! mix.sink_1 t. ! queue ! mix.sink_2

I have an error who say :

gstbin.c:2399:gst_bin_do_latency_func:<pipeline0> falied to query latency

And if I run the broadcaster like "gst-launch-1.0 videotestsrc !
video/x-raw, format=RGB, framerate=25/1, width=400,height=480 ! videoconvert
! rtpvrawpay ! udpsink host=127.0.0.1 port=5000", before the receiver, I can
see the only the first frame on the autovideosrc. It's freeze afterward.

Does anyone know my problem ?

Thanks :)



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