GStreamer Video Stabilizer for NVIDIA Jetson Boards - Performance - Xavier
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| User Guide | |
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The following section describes some relevant performance measurements during video stabilization for a few standard resolutions. It begins with a summary of the results detailed in the following sections, as well as the pipelines used to capture such results.
Contents
Summary
Benchmarking
Standalone element
Test Conditions
All the measurements below were made using the following minimal pipeline.
PATH_TO_FILE=path_to_file.rgba
WIDTH=1920
HEIGHT=1080
FRAME_SIZE=$(($WIDTH * $HEIGHT * 4))
gst-launch-1.0 filesrc location=$PATH_TO_FILE blocksize=$FRAME_SIZE ! videoparse format=rgba width=$WIDTH height=$HEIGHT ! nvstabilize ! fakesink sync=true
Note that this pipeline attempts to be as the least invasive as possible so the only processing element is GstNvStabilize.
Maximum and minimum framerate
These measurements were taken with the pipeline above, but without any limitation regarding the framerate. In the next table, you can find the maximum, minimum, and average framerate for video input and different resolution stabilized by the plugin.
| Resolution | Maximum framerate | Minimum framerate | Average |
|---|---|---|---|
| 640x480 | 220.77 | 182.53 | 204.0 |
| 1280x720 | 141.57 | 119.88 | 129.87 |
| 1920x1080 | 91.36 | 60.69 | 79.20 |
| 3840×2160 | 31.96 | 17.17 | 25.12 |
Note: To take into account the framerate relies on the movement of the video.
CPU
| Resolution | CPU 0 | CPU 1 | CPU 2 | CPU 3 | Average (reported by top) |
|---|---|---|---|---|---|
| 640x480@25Fps | 23.6 | 2.9 | 0.7 | 0 | 22.7 |
| 1280x720@25Fps | 27.55 | 12.33 | 0 | 1.44 | 27.3 |
| 1920x1080@25Fps | 42.05 | 1.44 | 1.27 | 4.055 | 41.5 |
| 2048×1080@25Fps | 51.17 | 3.73 | 2.70 | 0.20 | 49.2 |
GPU
| Resolution | GPU |
|---|---|
| 640x480@25Fps | 1.41 |
| 1280x720@25Fps | 2.53 |
| 1920x1080@25Fps | 3.87 |
| 2048×1080@25Fps | 4.6 |
RAM
| Resolution | RAM |
|---|---|
| 640x480@25Fps | 2136/15828MB |
| 1280x720@25Fps | 2153/15828MB |
| 1920x1080@25Fps | 2528/15828MB |
| 2048×1080@25Fps | 2572/15828MB |
Full pipeline
The following measurements were taken using an OV10635 camera at 1280x720@30FPS. As further explained on the User Guide, the resulting stabilization, latency and resources the element consumes are all affected by the chosen queue-size, as shown in the results reported as follows:
gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,width=1280,height=720' ! nvvidconv ! 'video/x-raw(memory:NVMM),width=1280,height=720,format=RGBA' ! nvvidconv ! queue max-size-buffers=1 leaky=downstream ! nvstabilize queue-size=5 ! fakesink
| Queue-size | RAM | CPU 0 | CPU 1 | CPU 2 | CPU 3 | GPU | Framerate |
|---|---|---|---|---|---|---|---|
| No stabilization | 1384/15828MB | 18.875 | 8.625 | 11 | 0.75 | 2.125 | 30 |
| 1 | 1396/15828MB | 31.11 | 29 | 1.55 | 3.22 | 10.33 | 30 |
| 2 | 1406/15828MB | 23.625 | 22.75 | 9.125 | 9 | 13.125 | 30 |
| 3 | 1426/15828MB | 17.625 | 20.375 | 11.75 | 12.75 | 15.25 | 30 |
| 4 | 1441/15828MB | 16.42 | 20.71 | 14.85 | 14.28 | 8.57 | 30 |
| 5 | 1551/15828MB | 10 | 11.7 | 23 | 11.7 | 7.8 | 30 |
| 6 | 1563/15828MB | 14.77 | 13.77 | 21.11 | 11.77 | 10 | 30 |
Glass-to-glass latency
Latency was measured as shown in the picture, and the following are the approximate results. It is important to notice that latency can be affected by the parameters selected on the pipeline, specifically the queue-size property of the gst-nvstabilize element, as further explained on the User Guide. The pipeline used was the following:
Note: the following latency measurements were NOT taken with high-performance enabled, given that the chosen resolution did not require it.
gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,width=1280,height=720' ! nvvidconv ! 'video/x-raw(memory:NVMM),width=1280,height=720,format=RGBA' ! nvvidconv ! queue max-size-buffers=1 leaky=downstream ! nvstabilize queue-size=5 ! nvvidconv ! nvoverlaysink sync=false
1280x720@30Fps
| queue-size | Latency (ms) |
|---|---|
| No stabilizer | 132 |
| 1 | 199 |
| 2 | 232 |
| 3 | 265 |
| 4 | 297 |
| 5 | 320 |
| 6 | 365 |
