Playback System

GoBigger’s playback system supports three options, which can be selected through the environment’s configuration file. The configuration items involved are as follows:

config = dict(
    ...
    playback_settings=dict(
        playback_type='none', # ['none', 'by_video', 'by_frame']
        by_video=dict(
            save_video=False,
            save_fps=10,
            save_resolution=552,
            save_all=True,
            save_partial=False,
            save_dir='.',
            save_name_prefix='test',
        ),
        by_frame=dict(
            save_frame=False,
            save_all=True,
            save_partial=False,
            save_dir='.',
            save_name_prefix='test',
        ),
        by_action=dict(
            save_action=False,
            save_dir='.',
            save_name_prefix='test',
        ),
    ),
    ...
)

playback_type can be one of ['none', 'by_video', 'by_frame'].

• none: means no need to save playback

• by_video: means to save the video directly, and the suffix of the saved file is .mp4. Generally speaking, the video saved in the st_t4p3 environment is about 80M.

• by_frame: Represents the change amount of each frame saved, and the suffix of the saved file is .pb. Generally speaking, the st_t4p3 environment saves files around 25M.

Save video

If playback_type='by_video' is selected, the specific configuration items can be as follows:

env = create_env('st_t4p3', dict(
    playback_settings=dict(
        playback_type='by_video',
        by_video=dict(
            save_video=True,
            save_dir='.', # The directory location where the video needs to be saved
            save_name_prefix='test', # Save the prefix of the video name
        ),
    ),
))

Save the pb file

If playback_type='by_frame' is selected, the specific configuration items can be as follows:

env = create_env('st_t4p3', dict(
    playback_settings=dict(
        playback_type='by_frame',
        by_frame=dict(
            save_frame=True,
            save_dir='.', # The directory location where the video needs to be saved
            save_name_prefix='test', # The prefix of the name of the saving video
        )
    ),
))

After getting the saved .pb file, you need to view it through our given player. Execute the following command in the command line to open the player.

python -m gobigger.bin.replayer

After opening the player, you need to select the .pb file you want to view. Then you can start watching. The player supports double-speed playback, including 2x, 4x, and 8x (by clicking the button in the lower left corner). Also supports dragging the progress bar.