Is it possible to create and add a marker to a timeline clip?

[communque]

It looks like it should be possible to do if not obvious how to an experienced pythoner, based on this bit of code, but I'm relatively new to python.

[communque]

UPDATE:

Looks like creating a marker is straightforward enough: myMarker = avb.misc.Marker( myMobRef )

which in turn requires the creation of a MobRef, myMobRef = avb.misc.MobRef()

But for now, how to properly configure that MobRef and then add it to a timeline clip remains a mystery.

[markreidvfx]

Have you looked at the dump_marker.py example?
Markers are stored on a _TMP_CRM attribute on a component in a sequence.
I think the CRM might stand for crumb, like a bread crumb, but I really have no idea why its called this.

The correct way to create any AVBObject in pyavb is to use the file object's create factory

with avb.open() as f:
    marker = f.create.Marker()

[communque]

Thanks Mark

Have you looked at the dump_marker.py example?

I did, and it was very helpful in getting a sense of what the attributes and properties of a marker are. It looks like getting marker lists should be simple (not to mention faster than exporting from Avid)

f.create.Marker

So having created a marker, is there a proper way to fill in the comment, name, start, offset, etc. and attach it to timeline clip?

[communque]

Playing with an idea like the one below.
It's not working but perhaps it communicates a bit.
Assuming a sequence in a bin at "BinPath, that has video track, with some clips in it, the following code seeks to add a green marker to each clip at 11 frames in. Tried various permutations and combinations, getting errors sometimes (hence the commented lines), but this is the basic idea:

with avb.open(BinPath) as f:
	for item in f.content.items:
		if item.user_placed and item.mob.name=="NameOfTargetSequence":
		for track in item.mob.tracks:
			if(hasattr(track.component, "components")):
				for component in track.component.components:
					attributes = component.attributes or {}
					if "attributes" in component.property_data:
						markers = attributes.get("_TMP_CRM",  [])
						NewMobRef = f.create.MobRef()
						# print("NewMobRef", NewMobRef)
						# NewMobRef.position = 0
						# NewMobRef.comp_offset = 11
						# NewMobRef.color = [13107, 52428, 13107]
						# NewMobRef.handled_codes = True
						# NewMobRef.attributes = avb.attributes()
						# NewMobRef.attributes._ATN_CRM_LONG_CREATE_DATE = 1690738361
						# NewMobRef.attributes._ATN_CRM_LONG_MOD_DATE = 1690738369
						# NewMobRef.attributes._ATN_CRM_DATE = u'07/30/2023'
						# NewMobRef.attributes._ATN_CRM_TIME = u'10:32'
						# NewMobRef.attributes._ATN_CRM_USER = u'myName'
						# NewMobRef.attributes._ATN_CRM_COLOR = u'Green'
						# NewMobRef.attributes._ATN_CRM_COM = u'MyComment'
						NewMarker = f.create.Marker(NewMobRef)
						markers.append(NewMarker)
	f.write(BinPath)