Embedding metadata to EGLStream

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hello.

Our project using several generic inputs for CUDA image processing (sensor, file, net) and EGLStream for passing data to Argus-rendering and gstreamer-video encoding.
Next step should be real-time histogram of video stream.
We considering to use CaptureMetadata and embed CUDA-calculated histogram.
Is there a “legal” way to combine this data with EGLStream frames (CUeglFrame) so Argus could use getBayerHistogram() or getRGBHistogram()?

Thanks.

2

Hi,

Actually, we have an Argus sample combining with CUDA histogram calculation.
It’s recommended to check it first: /usr/src/tegra_multimedia_api/argus/samples/cudaHistogram

Thanks.

3

That requires additional pipe to pass the histogram data for rendering between threads.
CaptureMetadata is preferable due to the fact that Argus is capable to handle it on his own.