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import os
import moviepy.editor as mp
from tqdm import tqdm
from multiprocessing import Pool, cpu_count
import time
def split_clip(args):
i, clip_duration, total_duration, input_path, output_folder = args
start_time = i * clip_duration
end_time = min((i + 1) * clip_duration, total_duration)
clip = mp.VideoFileClip(input_path).subclip(start_time, end_time)
save_name = f"{i + 1}".zfill(5)
output_path = os.path.join(output_folder, f"{save_name}.mp4")
clip.write_videofile(output_path, codec="libx264", audio_codec="aac")
clip.close()
def split_video(input_path, output_folder, clip_duration=80):
os.makedirs(output_folder, exist_ok=True)
if len(os.listdir(output_folder)) > 0:
return
video = mp.VideoFileClip(input_path)
total_duration = video.duration
num_clips = int(total_duration / clip_duration)
if total_duration % clip_duration != 0:
num_clips += 1
args_list = [(i, clip_duration, total_duration, input_path, output_folder) for i in range(num_clips)]
with Pool(processes=cpu_count()) as pool:
list(tqdm(pool.imap(split_clip, args_list), total=num_clips, desc="Splitting video"))
video.close()
def split_video_seq(input_path, output_folder, clip_duration=80):
os.makedirs(output_folder, exist_ok=True)
if len(os.listdir(output_folder)) > 0:
return
video = mp.VideoFileClip(input_path)
total_duration = video.duration
num_clips = int(total_duration / clip_duration)
if total_duration % clip_duration != 0:
num_clips += 1
for i in tqdm (range(num_clips), desc="Splitting video"):
start_time = i * clip_duration
end_time = min((i + 1) * clip_duration, total_duration)
clip = video.subclip(start_time, end_time)
save_name=f"{i + 1}".zfill(5)
output_path = os.path.join(output_folder, f"{save_name}.mp4")
clip.write_videofile(output_path, codec="libx264", audio_codec="aac")
video.close()
import argparse
parser = argparse.ArgumentParser(description="Split video")
parser.add_argument("--video_path", type=str,default="/ibex/project/c2133/minigpt4_v2_dataset/Friends/S01E01.mp4", help="Path to the video file or youtube url")
parser.add_argument("--output_folder", type=str,default="workspace/tmp/clips", help="Path to the output folder")
args = parser.parse_args()
if __name__ == "__main__":
t1 = time.time()
split_video(args.video_path, args.output_folder)
print("Time taken to split video from test parallel: ", time.time()-t1) |