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v4l2src: fix spurious SOURCE_CHANGED error-level log messages

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They're harmless, and some drivers at least return EINVAL
instead of ENOTTY for unsupported events (here: uvcvideo).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/955>
This commit is contained in:
Tim-Philipp Müller 2021-04-19 11:14:00 +01:00
parent 61d4dd0b9b
commit 63c1e2ed60
1 changed files with 6 additions and 1 deletions
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7
sys/v4l2/v4l2_calls.c
View file

@ -1257,10 +1257,15 @@ gst_v4l2_subscribe_event (GstV4l2Object * v4l2object, guint32 event, guint32 id)
/* ERRORS */
failed:
{
if (errno != ENOTTY)
if (errno == ENOTTY || errno == EINVAL) {
GST_DEBUG_OBJECT (v4l2object->dbg_obj,
"Cannot subscribe to '%s' event: %s",
gst_v4l2_event_to_string (event), "not supported");
} else {
GST_ERROR_OBJECT (v4l2object->dbg_obj,
"Cannot subscribe to '%s' event: %s",
gst_v4l2_event_to_string (event), g_strerror (errno));
}
return FALSE;
}
}