Officers tackled a man, choked him, then shoved his face into the ground

I witnessed and recorded two officers confronting a man with a sign in both hands. They tackled him, choked him, then shoved his face into the ground with all the weight of a grown man. A gun was aimed at me while they were apprehending him, so I started to walk away and couldn’t get much audio. I was pepper sprayed while I was riding my bicycle in the area trying to get more audio.