RSPI 4 and Cam streaming

[DejanCotra]

Hi Nicolas,

I finally manage to receive my HW encoded stream (problem was in how I
started pipeline nothing to do with RSPI4 or gstreamer).

But I run into another problem Im fighting with this one for some time now
with no luck.

>From RSPI4 Im streaming camera via webrtc (QT application with Gstremer
1.16.2) Im using pipeline:
*v4l2src ! video/x-raw,width=(int)640,height=(int)480 ! queue ! v4l2h264enc
! queue ! video/x-h264 ! h264parse ! rtph264pay ! queue ! " RTP_CAPS_H264
"96*

on receiving end its windows 10 application with Java bindings for Gsrteamer
1.16.2, it handles incoming video stream with: 
*queue ! videoconvert ! autovideosink*.

Stream starts ok. But after 1 to 35 minutes it just freezes. 

If I use SW encoder and send camera stream like this:
*v4l2src device=/dev/video0 ! video/x-raw, format=(string)YUY2,
width=(int)640, height=(int)480 ! videoconvert ! queue ! x264enc bitrate=600
speed-preset=ultrafast tune=zerolatency key-int-max=15 !
video/x-h264,profile=constrained-baseline ! h264parse ! rtph264pay
config-interval=-1 name=payloader ! queue ! " RTP_CAPS_H264 "96 !*

It runs smoothly for 2h no problem (then I switch it off).

So only difference is encoder. Do you have any hint?

Further more I try to with error logs * ( qputenv("GST_DEBUG", "4") )*. No
errors.
Aslo I try with * ( qputenv("GST_DEBUG", "v4l2videoenc*:7") )*
and while streaming is running there are print outs:
*4l2videoenc gstv4l2videoenc.c:640:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Allocate output buffer
4l2videoenc gstv4l2videoenc.c:653:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Process output buffer
4l2videoenc
gstv4l2videoenc.c:718:gst_v4l2_video_enc_handle_frame:<v4l2h264enc0>
Handling frame 1938
v4l2videoenc
gstv4l2videoenc.c:620:gst_v4l2_video_enc_get_oldest_frame:<v4l2h264enc0>
Oldest frame is 1937 0:01:10.613883808 and 1 frames left
v4l2videoenc gstv4l2videoenc.c:640:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Allocate output buffer
v4l2videoenc gstv4l2videoenc.c:653:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Process output buffer
v4l2videoenc
gstv4l2videoenc.c:718:gst_v4l2_video_enc_handle_frame:<v4l2h264enc0>
Handling frame 1939
v4l2videoenc
gstv4l2videoenc.c:620:gst_v4l2_video_enc_get_oldest_frame:<v4l2h264enc0>
Oldest frame is 1938 0:01:10.649288698 and 1 frames left
v4l2videoenc gstv4l2videoenc.c:640:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Allocate output buffer
v4l2videoenc gstv4l2videoenc.c:653:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Process output buffer
v4l2videoenc
gstv4l2videoenc.c:620:gst_v4l2_video_enc_get_oldest_frame:<v4l2h264enc0>
Oldest frame is 1939 0:01:10.681470957 and 0 frames left
v4l2videoenc gstv4l2videoenc.c:640:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Allocate output buffer
v4l2videoenc gstv4l2videoenc.c:653:gst_v4l2_video_enc_loop:<v4l2h264enc0>
Process output buffe*
once stream freezes printouts just stop with no error.




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