Problem with rtspclientsink when using v4l2h264enc on Dragonboard 410c

[RobGries]

When using the following pipeline on a dragonboard 410c using the gstv4l2enc
I seem not to be able to stream up to wowza:
gst-launch-1.0 -v v4l2src device=/dev/video3 !
video/x-raw,format=NV12,width=1280,height=720,framerate=30/1 ! v4l2h264enc
extra-controls="controls,h264_profile=4,video_bitrate=2000000;" ! h264parse
! rtspclientsink
location=rtsp://51c1b3.entrypoint.cloud.wowza.com/app-acb4:1935

This is the error that I get:
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to
rtsp://51c1b3.entrypoint.cloud.wowza.com/app-acb4:1935
/GstPipeline:pipeline0/GstV4l2Src:v4l2src0.GstPad:src: caps = video/x-raw,
format=(string)NV12, width=(int)1280, height=(int)720,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps =
video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/v4l2h264enc:v4l2h264enc0.GstPad:src: caps =
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au,
profile=(string)high, level=(string)1, width=(int)1280, height=(int)720,
pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1,
interlace-mode=(string)progressive, colorimetry=(string)1:4:7:1
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:src: caps =
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au,
profile=(string)high, level=(string)1, width=(int)1280, height=(int)720,
pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1,
interlace-mode=(string)progressive, colorimetry=(string)1:4:7:1,
parsed=(boolean)true
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0.GstGhostPad:sink_0.GstProxyPad:proxypad0:
caps = video/x-h264, stream-format=(string)byte-stream,
alignment=(string)au, profile=(string)high, level=(string)1,
width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, parsed=(boolean)true
Progress: (open) Retrieving server options
Progress: (open) Opened Stream
Setting pipeline to PLAYING ...
New clock: GstSystemClock
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0/GstBin:rtspbin/GstRtpBin:rtpbin0:
latency = 2000
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0/GstBin:rtspbin/GstRtpBin:rtpbin0:
ntp-time-source = NTP time based on realtime clock
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0/GstBin:rtspbin/GstRtpH264Pay:rtph264pay0:
pt = 96
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0/GstBin:rtspbin.GstGhostPad:ghostpad0.GstProxyPad:proxypad1:
caps = video/x-h264, stream-format=(string)byte-stream,
alignment=(string)au, profile=(string)high, level=(string)1,
width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, parsed=(boolean)true
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0/GstBin:rtspbin/GstRtpH264Pay:rtph264pay0.GstPad:sink:
caps = video/x-h264, stream-format=(string)byte-stream,
alignment=(string)au, profile=(string)high, level=(string)1,
width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, parsed=(boolean)true
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0/GstBin:rtspbin.GstGhostPad:ghostpad0:
caps = video/x-h264, stream-format=(string)byte-stream,
alignment=(string)au, profile=(string)high, level=(string)1,
width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, parsed=(boolean)true
/GstPipeline:pipeline0/GstRTSPClientSink:rtspclientsink0.GstGhostPad:sink_0:
caps = video/x-h264, stream-format=(string)byte-stream,
alignment=(string)au, profile=(string)high, level=(string)1,
width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, parsed=(boolean)true
/GstPipeline:pipeline0/GstH264Parse:h264parse0.GstPad:sink: caps =
video/x-h264, stream-format=(string)byte-stream, alignment=(string)au,
profile=(string)high, level=(string)1, width=(int)1280, height=(int)720,
pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1,
interlace-mode=(string)progressive, colorimetry=(string)1:4:7:1
Redistribute latency...
/GstPipeline:pipeline0/v4l2h264enc:v4l2h264enc0.GstPad:sink: caps =
video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, pixel-aspect-ratio=(fraction)1/1
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps =
video/x-raw, format=(string)NV12, width=(int)1280, height=(int)720,
framerate=(fraction)30/1, interlace-mode=(string)progressive,
colorimetry=(string)1:4:7:1, pixel-aspect-ratio=(fraction)1/1
Execution ended after 0:00:00.258690184
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

(gst-launch-1.0:5619): GStreamer-CRITICAL **: gst_structure_set: assertion
'IS_MUTABLE (structure) || field == NULL' failed
ERROR: from element /GstPipeline:pipeline0/v4l2h264enc:v4l2h264enc0: Could
not get/set settings from/on resource.
Additional debug info:
../../../gst-plugins-good-1.12.2/sys/v4l2/gstv4l2object.c(3150):
gst_v4l2_object_set_format_full ():
/GstPipeline:pipeline0/v4l2h264enc:v4l2h264enc0:
Device is in streaming mode

The weird thing is that I can utilize the test code from gst-rtsp-server
with the following pipeline to stream as an RTSP server, but it seems that
pushing a stream has issues:
v4l2h264enc
extra-controls=\"controls,h264_level=15,h264_profile=4,video_bitrate=800000;\"
! h264parse !  rtph264pay name=pay0 pt=127 config-interval=15 pulsesrc
device=\"alsa_input.platform-7702000.sound.HiFi__plughw_0_1__source\" !
audio/x-raw,rate=8000  ! audioconvert ! avenc_aac ! rtpmp4apay name=pay1
pt=96"

Test Code Located here:
https://github.com/GStreamer/gst-rtsp-server/blob/master/examples/test-video.c



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