visualization

[Kamel-schbock]

Hey,
I run training, test, validation successfully. But when i run visualize.py i got the following error:

Video creation for sequence00000 is starting...
MovieWriter ffmpeg unavailable; trying to use <class 'matplotlib.animation.PillowWriter'> instead.
Traceback (most recent call last):
File "/home/user/anaconda3/lib/python3.7/site-packages/PIL/Image.py", line 2114, in save
format = EXTENSION[ext]
KeyError: '.mp4'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "visualize.py", line 772, in
main()
File "visualize.py", line 762, in main
target_traj = plot_trajectories(results[i][0], results[i][1], results[i][2], results[i][3],results[i][4], name, figure_save_directory, args.min_traj ,args.max_ped_ratio, results[i][5], [min_r, max_r, plot_offset], 20)
File "visualize.py", line 413, in plot_trajectories
create_plot_animation(plt, video_plot_trajs, processed_ped_index, target_id, real_inv_lookup, obs_length, markers, colors, name, frames, true_target_id_values, plot_directory, style, num_of_color)
File "visualize.py", line 479, in create_plot_animation
ani.save(plot_directory+'/'+name+'.mp4')
File "/home/user/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1156, in save
writer.grab_frame(**savefig_kwargs)
File "/home/user/anaconda3/lib/python3.7/contextlib.py", line 119, in exit
next(self.gen)
File "/home/user/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 232, in saving
self.finish()
File "/home/user/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 577, in finish
duration=int(1000 / self.fps), loop=0)
File "/home/user/anaconda3/lib/python3.7/site-packages/PIL/Image.py", line 2116, in save
raise ValueError("unknown file extension: {}".format(ext))
ValueError: unknown file extension: .mp4

Can you please help me?
Thanks

[quancore]

Please install ffmpeg.

[396559551]

Can you copy your project for me? I can't run the original author's code。please~