Hardware: Jetson AGX Xavier
Gstreamer: 1.20.1
Deepstream: 6.0
Using the provided example for the nvv4l2h265enc in the accelerated gstreamer user guide, we believe we are seeing a slow memory leak.
Furthermore, when running the command with GST_DEBUG=4, there are warning printed at 20 fps, which the same framerate as our camera
Command:
GST_DEBUG=4 gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=(int)2880, height=(int)1860, \
format=(string)NV12, framerate=(fraction)20/1' ! nvv4l2h265enc \
bitrate=8000000 ! h265parse ! qtmux ! filesink \
location=test_h265.mp4 -e
Warnings at 20 fps:
0:00:05.988689873 3481 0x557fcaff60 WARN bufferpool gstbufferpool.c:1246:default_reset_buffer:<nvv4l2h265enc0:pool:sink> Buffer 0x7f7c00b360 without the memory tag has maxsize (2016) that is smaller than the configured buffer pool size (8087040). The buffer will be not be reused. This is most likely a bug in this GstBufferPool subclass
0:00:06.038680224 3481 0x557fcaff60 WARN bufferpool gstbufferpool.c:1246:default_reset_buffer:<nvv4l2h265enc0:pool:sink> Buffer 0x7f7c00b240 without the memory tag has maxsize (2016) that is smaller than the configured buffer pool size (8087040). The buffer will be not be reused. This is most likely a bug in this GstBufferPool subclass
0:00:06.088761812 3481 0x557fcaff60 WARN bufferpool gstbufferpool.c:1246:default_reset_buffer:<nvv4l2h265enc0:pool:sink> Buffer 0x7f7c00b120 without the memory tag has maxsize (2016) that is smaller than the configured buffer pool size (8087040). The buffer will be not be reused. This is most likely a bug in this GstBufferPool subclass
You can see the memory leak by running watch -n 1 free -m and see the used field gradually increase. From 4:55pm on average 9920MB were used → 5:05pm on average 9950MB in use.
Can NVIDIA please provide some insight into this issue? There appears to be a bug in the buffer memory usage of the nvv4l2h265enc plugin