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utils.py
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utils.py
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from IPython import display as ipythondisplay
from pyvirtualdisplay import Display
from gym.wrappers import RecordVideo
from pathlib import Path
import base64
display = Display(visible=0, size=(1400, 900))
display.start()
def record_videos(env, video_folder="videos"):
wrapped = RecordVideo(env, video_folder=video_folder, episode_trigger=lambda e: True)
# Capture intermediate frames
env.unwrapped.set_record_video_wrapper(wrapped)
return wrapped
def show_videos(path="videos"):
html = []
for mp4 in Path(path).glob("*.mp4"):
video_b64 = base64.b64encode(mp4.read_bytes())
html.append('''<video alt="{}" autoplay
loop controls style="height: 400px;">
<source src="data:video/mp4;base64,{}" type="video/mp4" />
</video>'''.format(mp4, video_b64.decode('ascii')))
ipythondisplay.display(ipythondisplay.HTML(data="<br>".join(html)))