Server-side Video Making via `logger.make_video`

ml-logger now supports making videos from a collection of images. See usage bellow for v0.8.83.

def test_make_video():
    import scipy.misc

    face = scipy.misc.face()
    h, w, _ = face.shape
    for i in range(10):
        logger.save_image(face[i:h - 100 + i, i:w - 100 + i], f"face_{i:04d}.png")

    file_list = logger.glob("face_*.png")
    # This one makes the video according to ascending order
    logger.make_video("face_*", key="videos/face_move_glob.mp4")
    logger.make_video("face_*", order='descending', key="videos/face_move_glob_descending.mp4")
    # This one makes the video according to the random order given by glob
    logger.make_video(file_list, key="videos/face_move_list.mp4")

    # this should not reaise an error
    path = logger.make_video("no_exist_*.png", key="videos/not_exist.mp4")
    assert path is None

v0.8.33

• e7f754e 2021-09-17 | use tempfile to avoid name conflict (HEAD -> master, tag: v0.8.33) [Ge Yang]

def load_torch(self, *keys, path=None, map_location=None, **kwargs):
        import torch, tempfile
        path = pJoin(*keys, path)
        if path.lower().startswith('s3://'):
            postfix = os.path.basename(path)
            with tempfile.NamedTemporaryFile(suffix=f'.{postfix}') as ntp:
                self.download_s3(path[5:], to=ntp.name)
                return torch.load(ntp, map_location=map_location, **kwargs)
        else:
            fn_or_buff = self.load_file(path)
            return torch.load(fn_or_buff, map_location=map_location, **kwargs)

Unified Prefix and User Prefix

• remove the debug string from ML_LOGGER_ROOT parsing.