Barcelona: Protesters throwing fireworks against police helicopter

The situation at Barcelona is becoming more and more tense. I am not sure if the media can show you the magnitude of the struggle but protesters are using any mean available to keep world's attention to what I think it is really a bad resolution of the court against the Catalan Politic prisoners.
From "toilet paper" to Fireworks rocket against the police helicopter.
Have a look to the video, sorry for the bad quality.