Composition and RTP streaming of RTSP sources

[mfichou]

Hello all, 

I have an issue with the following script:

gst-launch-1.0 nvcompositor name=comp operator=source \
sink_0::alpha=1 sink_0::width=1920 sink_0::height=840 \
sink_1::alpha=1 sink_1::xpos=0 sink_1::ypos=728 sink_1::width=480
sink_1::height=240 \
sink_2::alpha=1 sink_2::xpos=480 sink_2::ypos=728 sink_2::width=480
sink_2::height=240 \
sink_3::alpha=1 sink_3::xpos=960 sink_3::ypos=728 sink_3::width=480
sink_3::height=240 \
sink_4::alpha=1 sink_4::xpos=1440 sink_4::ypos=728 sink_4::width=480
sink_4::height=240 \
\
! nvvidconv ! omxh264enc bitrate=3000000 control-rate=4 qos=true ! \
rtph264pay config-interval=1 pt=96 ! udpsink host=192.168.0.123 port=5001
async=false sync=false \
\
rtspsrc
location="rtsp://prolexia:prolexia@192.168.0.21/onvif-media/media.amp?camera=1"
latency=10 !\
rtph264depay ! nvv4l2decoder enable-max-performance=1 ! queue2 ! comp.sink_0
\
\
rtspsrc
location="rtsp://prolexia:prolexia@192.168.0.21/onvif-media/media.amp?camera=1"
latency=10 !\
rtph264depay ! nvv4l2decoder enable-max-performance=1 ! queue2 ! comp.sink_1
\
\
rtspsrc
location="rtsp://prolexia:prolexia@192.168.0.21/onvif-media/media.amp?camera=2"
latency=10 !\
rtph264depay ! nvv4l2decoder enable-max-performance=1 ! queue2 ! comp.sink_2
\
\
rtspsrc
location="rtsp://prolexia:prolexia@192.168.0.21/onvif-media/media.amp?camera=3"
latency=10 !\
rtph264depay ! nvv4l2decoder enable-max-performance=1 ! queue2 ! comp.sink_3
\
\
rtspsrc
location="rtsp://prolexia:prolexia@192.168.0.21/onvif-media/media.amp?camera=4"
latency=10 !\
rtph264depay ! nvv4l2decoder enable-max-performance=1 ! queue2 ! comp.sink_4

Basically, it *can* work sometimes (1 on 10 times), but most of time I just
got a freezed picture with only one or two sub-stream displayed. This is the
NVIDIA version but I have exactly the same issue with standard avdec_h264
and v4l2h264enc plugins.
I suspect a sync issue, but not sure. If I try this script with 5
videotestsrc, it works perfectly. Same thing with a direct display of the
compositor result (no encoding / streaming), with nvoverlaysink. It works
also all the time.

I'm lost right now, no idea of what I can do / try to fix it.
If anyone has any idea, it would be great !

Thanks a lot, 

Mael 



--
Sent from: http://gstreamer-devel.966125.n4.nabble.com/