def copy_file(input_file, destination_dir, tmp_destination_dir):
"""
Copy a given input_file from source to the destination directory.
Steps:
1. We use g_pathmgr to extract the data to local path.
2. we simply move the files from the g_pathmgr cached local directory
to the user specified destination directory. We use rsync.
How destination dir is chosen:
a) If user is using slurm, we set destination_dir = slurm_dir (see get_slurm_dir)
b) If the local path used by PathManafer is same as the input_file path,
and the destination directory is not specified, we set
destination_dir = tmp_destination_dir
Returns:
output_file (str): the new path of the file
destination_dir (str): the destination dir that was actually used
"""
# we first extract the local path for the files. g_pathmgr
# determines the local path itself and copies data there.
logging.info(f"Copying {input_file} to local path...")
out = g_pathmgr.get_local_path(input_file)
output_dir = os.path.dirname(out)
logging.info(f"File coped to: {out}")
if (out == input_file) and not destination_dir:
destination_dir = tmp_destination_dir
logging.info(
f"The file wasn't copied. Copying again to temp "
f"destination directory: {destination_dir}"
)
# if the user wants to copy the files to a specific location,
# we simply move the files from the g_pathmgr cached directory
# to the user specified directory.
destination_dir = get_slurm_dir(destination_dir)
if "SLURM_JOBID" in os.environ:
destination_dir = get_slurm_dir(destination_dir)
if destination_dir is not None:
makedir(destination_dir)
output_file = f"{destination_dir}/{os.path.basename(input_file)}"
if g_pathmgr.exists(output_file):
logging.info(f"File already copied: {output_file}")
return output_file, destination_dir
logging.info(f"Copying file: {input_file} to destination: {destination_dir}")
stime = time.perf_counter()
os.system(f"rsync -a --progress {out} {destination_dir}")
etime = time.perf_counter()
logging.info(
f"Copied file | time (sec): {round(etime - stime, 4)} "
f"size: {get_file_size(output_file)}"
)
return output_file, destination_dir
else:
return out, output_dir
def __init__(self, cfg):
"""
Args:
cfg (CfgNode): configs. Details can be found in
slowfast/config/defaults.py
"""
self.source = g_pathmgr.get_local_path(path=cfg.DEMO.INPUT_VIDEO)
self.fps = None
if g_pathmgr.isdir(self.source):
self.fps = cfg.DEMO.FPS
self.video_name = self.source.split("/")[-1]
self.source = os.path.join(self.source,
"{}_%06d.jpg".format(self.video_name))
else:
self.video_name = self.source.split("/")[-1]
self.video_name = self.video_name.split(".")[0]
self.cfg = cfg
self.cap = cv2.VideoCapture(self.source)
if self.fps is None:
self.fps = self.cap.get(cv2.CAP_PROP_FPS)
self.total_frames = int(self.cap.get(cv2.CAP_PROP_FRAME_COUNT))
self.display_width = int(self.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
self.display_height = int(self.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
if not self.cap.isOpened():
raise IOError("Video {} cannot be opened".format(self.source))
self.output_file = None
if cfg.DEMO.OUTPUT_FILE != "":
self.output_file = self.get_output_file(cfg.DEMO.OUTPUT_FILE)
self.pred_boxes, self.gt_boxes = load_boxes_labels(
cfg,
self.video_name,
self.fps,
self.display_width,
self.display_height,
)
self.seq_length = cfg.DATA.NUM_FRAMES * cfg.DATA.SAMPLING_RATE
self.no_frames_repeat = cfg.DEMO.SLOWMO
def get_local_path(path: str, **kwargs) -> str:
if IOPathManager:
return IOPathManager.get_local_path(path, **kwargs)
return path
