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| # Copyright (c) 2024 Bytedance Ltd. and/or its affiliates | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| from latentsync.utils.util import write_video | |
| from latentsync.utils.image_processor import VideoProcessor | |
| import torch | |
| import os | |
| import subprocess | |
| from multiprocessing import Process | |
| import shutil | |
| paths = [] | |
| def gather_video_paths(input_dir, output_dir): | |
| for video in sorted(os.listdir(input_dir)): | |
| if video.endswith(".mp4"): | |
| video_input = os.path.join(input_dir, video) | |
| video_output = os.path.join(output_dir, video) | |
| if os.path.isfile(video_output): | |
| continue | |
| paths.append((video_input, video_output)) | |
| elif os.path.isdir(os.path.join(input_dir, video)): | |
| gather_video_paths(os.path.join(input_dir, video), os.path.join(output_dir, video)) | |
| def combine_video_audio(video_frames, video_input_path, video_output_path, process_temp_dir): | |
| video_name = os.path.basename(video_input_path)[:-4] | |
| audio_temp = os.path.join(process_temp_dir, f"{video_name}_temp.wav") | |
| video_temp = os.path.join(process_temp_dir, f"{video_name}_temp.mp4") | |
| write_video(video_temp, video_frames, fps=25) | |
| command = f"ffmpeg -y -loglevel error -i {video_input_path} -q:a 0 -map a {audio_temp}" | |
| subprocess.run(command, shell=True) | |
| os.makedirs(os.path.dirname(video_output_path), exist_ok=True) | |
| command = f"ffmpeg -y -loglevel error -i {video_temp} -i {audio_temp} -c:v libx264 -c:a aac -map 0:v -map 1:a -q:v 0 -q:a 0 {video_output_path}" | |
| subprocess.run(command, shell=True) | |
| os.remove(audio_temp) | |
| os.remove(video_temp) | |
| def func(paths, process_temp_dir, device_id, resolution): | |
| os.makedirs(process_temp_dir, exist_ok=True) | |
| video_processor = VideoProcessor(resolution, f"cuda:{device_id}") | |
| for video_input, video_output in paths: | |
| if os.path.isfile(video_output): | |
| continue | |
| try: | |
| video_frames = video_processor.affine_transform_video(video_input) | |
| except Exception as e: # Handle the exception of face not detcted | |
| print(f"Exception: {e} - {video_input}") | |
| continue | |
| os.makedirs(os.path.dirname(video_output), exist_ok=True) | |
| combine_video_audio(video_frames, video_input, video_output, process_temp_dir) | |
| print(f"Saved: {video_output}") | |
| def split(a, n): | |
| k, m = divmod(len(a), n) | |
| return (a[i * k + min(i, m) : (i + 1) * k + min(i + 1, m)] for i in range(n)) | |
| def affine_transform_multi_gpus(input_dir, output_dir, temp_dir, resolution, num_workers): | |
| print(f"Recursively gathering video paths of {input_dir} ...") | |
| gather_video_paths(input_dir, output_dir) | |
| num_devices = torch.cuda.device_count() | |
| if num_devices == 0: | |
| raise RuntimeError("No GPUs found") | |
| if os.path.exists(temp_dir): | |
| shutil.rmtree(temp_dir) | |
| os.makedirs(temp_dir, exist_ok=True) | |
| split_paths = list(split(paths, num_workers * num_devices)) | |
| processes = [] | |
| for i in range(num_devices): | |
| for j in range(num_workers): | |
| process_index = i * num_workers + j | |
| process = Process( | |
| target=func, args=(split_paths[process_index], os.path.join(temp_dir, f"process_{i}"), i, resolution) | |
| ) | |
| process.start() | |
| processes.append(process) | |
| for process in processes: | |
| process.join() | |
| if __name__ == "__main__": | |
| input_dir = "/mnt/bn/maliva-gen-ai-v2/chunyu.li/VoxCeleb2/segmented" | |
| output_dir = "/mnt/bn/maliva-gen-ai-v2/chunyu.li/VoxCeleb2/affine_transformed" | |
| temp_dir = "temp" | |
| resolution = 256 | |
| num_workers = 10 # How many processes per device | |
| affine_transform_multi_gpus(input_dir, output_dir, temp_dir, resolution, num_workers) | |