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gstreamer/subprojects/gst-plugins-bad/docs/libs/cuda/index.md
Seungha Yang de749fa356 cuda: Introduce GST_CUDA_CRITICAL_ERRORS env to abort on critical error 
Adding GST_CUDA_CRITICAL_ERRORS env variable so that program can be
terminated on unrecoverable error.

Example)
GST_CUDA_CRITICAL_ERRORS=2,700 gst-launch-1.0 ...

In this example, CUDA_ERROR_OUT_OF_MEMORY(2) and
CUDA_ERROR_ILLEGAL_ADDRESS(700) are registered as critical error
and program will be aborted on those errors

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4729>
2023-06-18 16:44:43 +00:00

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Cuda library

This library should be linked to by getting cflags and libs from gstreamer-cuda-{{ gst_api_version.md }}.pc

NOTE: This library API is considered unstable

Environment variables

The GStreamer CUDA library inspects following environment variables

GST_CUDA_CRITICAL_ERRORS. (Since: 1.24)

This environment variable can be set to a comma-separated list of CUresult values (see CUDA driver API documentation). GStreamer CUDA library will abort when the user registered error is detected. This environment can be useful when unrecoverable CUDA error happens. Thus in-process error recovery (e.g., relaunching new pipeline) is not expected to work, and therefore the process should be relaunched.

Example: GST_CUDA_CRITICAL_ERRORS=2,700

As a result of the above example, if CUDA_ERROR_OUT_OF_MEMORY(2) or CUDA_ERROR_ILLEGAL_ADDRESS(700) error is detected in GStreamer CUDA library, the process will be aborted.