GstQtOverlay plugin performance on Qualcomm Platforms

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GStreamer Qt Overlay
Overview
Architecture Supported Platforms Capabilities Properties and Signals
Getting Started
Dependencies Evaluating GstQtOverlay Building GstQtOverlay Checking GstQtOverlay Install Running without Graphics Server
Examples
x86 PC NXP iMX95 Qualcomm NVIDIA Jetson Use Cases
Performance
NVIDIA Jetson NXP Qualcomm x86 PC
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Qualcomm RB5 Platform

CPU usage

Taking the following pipelines as reference:

FPS:
gst-launch-1.0 videotestsrc num-buffers=1 ! imagefreeze ! "video/x-raw,width=1280,height=720,format=RGBA" ! qtoverlay qml=gst-libs/gst/qt/main.qml ! perf ! fakesink

CPU:
gst-launch-1.0 videotestsrc pattern=black is-live=1 ! "video/x-raw,width=1280,height=720,format=RGBA" ! qtoverlay qml=gst-libs/gst/qt/main.qml ! perf print-cpu-load=1 ! fakesink -vvv

Results

	720p	1080p	4K
Max Framerate (fps)	183	109	40
CPU(%)	16	17	17 (locked to one core)
RAM(MiB)	12	23	38

Qualcomm Dragonwing 9075 EVK

Important:

Performance was measured on the target board with the element running on the CPU only, without GPU acceleration.

CPU usage

Taking the following pipelines as reference:

FPS:
gst-launch-1.0 videotestsrc num-buffers=1 ! imagefreeze ! "video/x-raw,width=1280,height=720,format=RGBA" ! qtoverlay qml=main.qml ! perf ! fakesink

CPU:
gst-launch-1.0 videotestsrc pattern=black is-live=1 ! "video/x-raw,width=1280,height=720,format=RGBA" ! qtoverlay qml=main.qml ! perf print-cpu-load=1 ! fakesink -vvv

Results

	720p	1080p	4K
Max Framerate (fps)	222.378	214.746	71.515
CPU(%) (locked to one core)	8.0	13.9	31.9
RAM(%)	0.3	0.4	0.6
RAM(MiB)	116.39	133.91	228.82