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gstreamer: docs: document GST_DEBUG env var evaluation order

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Fixes #716

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/923>
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Tim-Philipp Müller 2021-09-25 18:48:22 +01:00 committed by GStreamer Marge Bot
parent 3db957c10d
commit 677d8f4639
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6
subprojects/gstreamer/docs/gst/running.md
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@ -131,6 +131,12 @@ hand.
Since GStreamer 1.2 it is also possible to specify debug levels by name,
e.g. `GST_DEBUG=*:WARNING,*audio*:LOG`
The categories and log levels are evaluated from left to right, with later
entries overriding any previously-set levels for categories, e.g.
`GST_DEBUG=decodebin:LOG,*:INFO` will set the decodebin category back to
INFO level whereas `GST_DEBUG=*:INFO,decodebin:LOG` will log everything at
INFO level apart from decodebin which will be logged at LOG level.
**`GST_DEBUG_NO_COLOR`.**
Set this environment variable to any value ("1" typically) to switch