Neither.
To know which it was we need the driver's account of why they did it.
From the video I would put it in the SMIDSY category though. Try to look at it from the driver's perspective: you have a lot smaller a frontal area than a car or motorbike, so when approaching you don't look to be getting any closer till the last second - as was the case I suspect. The driver then commits to go and pulls out, and hey ho, we have an incident. Very avoidable IMO. As a tip, try riding with the thought: 'Has that vehicle seen me?' If yes, proceed with care, if no, then back off and prepare to take evasive action.
Personally, on the approach to that junction I would have been in primary (you look as if you were gutter-hugging a bit). Then, when assessing if the driver has seen me, I would make a couple of quick swooping turns to make my shape move in their field of vision - riding in a straight line towards a 90 degree junction is always a recipe for disaster on 2 wheels. Think, approaching from the right, you will stay very small and constantly coming from one position for a long time till the last second, then you suddenly get very big - as I suspect happened. To see my point, look at the video, and watch the position of the drivers window against the background - it stays very static, meaning they see the same of you - you are NOT moving. Yes, you are rolling towards them, but it is deceptive as your shape stays static in their view. Do the same hill again, past the same junction, but this time do some quick swooping turns on the approach, and see the way the car seems to move against the background. When this happens, the driver will see you, as your movement is suddenly lateral instead of being in one position.
Another way to demonstrate it, hold a pencil out at arms length to your side. Now bring it towards you. Notice how it stays very stationary in your view. Now move it towards you, but also move it side to side slightly - see the difference?
Now apply the same mindset with any vehicle you use, and you will greatly reduce the chances of this happening again.