markreidvfx/pyavb

identifying sequences

russellaugust opened this issue · 3 comments

russellaugust commented

Has anyone found a simple way to identify if a mob is a sequence?

I've found a combination of attributes that gets me there (must be a CompositionMob with a usage_code of 0 and a sequence format type of 0) but there should be a single attribute that indicates it's a sequences (and not a multicam). I've been combing through readouts trying to find it with no luck.

Anyone find this?

russellaugust commented

following up, this is my current approach that doesn't feel bullet proof.

with avb.open(avb_filepath) as f:
for item in f.content.items:
     mobtype_id = item.mob.property_data['mob_type_id']
     usage_code = item.mob.property_data['usage_code']
     if mobtype_id == 1 and usage_code == 0:
          do_a_thing(item)

Feels like there should be a more sure-fire direct way to access them. I worry this approach might cross wires with multiclips because they seem to share all of the same properties. I couldn't find anything that made them fully distinct, aside from usage which isn't perfect.

communque commented

Worked out the following. If there's a more authoritative listing or existing method already in the library, all the better, but so far this has been helpful:

def getBinItemType(mob_type_id, usage_code):
	theseTypes = {"1:0":"Sequence", "2:0":"Master Clip", "1:2":"Subclip", "1:4":"Group Clip", "1:3":"FX"}
	# Where FX include things like TC Burn-In, Subcaps, files imported with alpha, etc
	thisCombo = str(mob_type_id) + ":" + str(usage_code)
	return theseTypes[thisCombo]