无法播放从 OpenAi 环境录制的视频

分类：编程问答

如何解决无法播放从 OpenAi 环境录制的视频

我正在用 python 开发一些强化学习算法，我正在尝试将环境录制到视频中，但是一旦我录制了它，我就无法播放文件，它的大小只有 1KB，我试过一个例子我在网上找到，这也不起作用，所以我认为这是系统问题而不是我的代码问题，我通过运行 gym.logger.set_level(gym.logger.DEBUG) 启用了调试，但这似乎没有通过任何有用的返回，下面是我的代码

def replay_episode(self):
    self._env.reset()
    video_recorder = VideoRecorder(self._env,"{}/episode{}.mp4".format(self._output_directory,episode_number),enabled=True)
    for action_taken in self._current_episode_actions:
        self._env.render()
        video_recorder.capture_frame()
        self._env.step(action_taken)
    video_recorder.close()

for i in range(solution.get_episode_count()):
    # AI Stuff
    episode_number = i + 1
    solution.intialise_episode(episode_number)
    profiler.enable()
    while not solution.current_episode_done():
       solution.run_tick()
    solution.train_model()
    profiler.disable()
    export_profiling_results(profiler,'{}/episode{}.csv'.format(solution._output_directory,episode_number))


    # This is the bit we're intrested in
    if solution.current_episode_successful() or episode_number % 50 == 0:
        solution.replay_episode()

    done_time = time.time()
    print("Episode {} Completed in {}s".format(episode_number,done_time-start_time))
    start_time = done_time

solution.close()

这是我在调用replay_episode()方法时从环境中得到的日志

DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Starting ffmpeg with "ffmpeg -nostats -loglevel error -y -f rawvideo -s:v 600x400 -pix_fmt rgb24 -framerate 30 -i - -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -vcodec libx264 -pix_fmt yuv420p 
-r 30 data/1003083349/episode50.mp4"
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
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DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
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DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Capturing video frame: path=data/1003083349/episode50.mp4
DEBUG: Closing video encoder: path=data/1003083349/episode50.mp4

当我尝试播放视频时出现错误：This file isn't playable. That might be because the file type is unsupported,the file extension is incorrect,or the file is corrupt. 0xc10100be

预先感谢您的任何回复

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