Watching the original video, do you legitimately believe that any of the police officers are in danger? Do you believe that a single (unsubstantiated claim, without any evidence of a) thrown object justifies pepper spraying reporters and attacking bystanders with batons?
I originally shared the video claiming that police were interfering with a peaceful protest. You disputed that the police were interfering, saying they were marching past. When I shared further evidence that the police were in fact disrupting the protest and hurting people who were participating, you found reason to instead believe that the protest was not peaceful. Consider your biases.
Here [0] [1] [2] [3] are more examples of and news articles discussing police attacking peaceful protesters.
So, not so peaceful it seems.