389 lines
13 KiB
Python
389 lines
13 KiB
Python
import subprocess
|
||
from pathlib import Path
|
||
import sys
|
||
import os
|
||
import logging
|
||
from datetime import datetime
|
||
from time import time
|
||
from rich.logging import RichHandler
|
||
from rich.progress import Progress
|
||
from pickle import dumps, loads
|
||
from typing import Optional
|
||
import atexit
|
||
import re
|
||
|
||
root = None
|
||
CFG_FILE = Path(sys.path[0])/"config.json"
|
||
CFG = {
|
||
"save_to": "single",
|
||
"crf":"18",
|
||
"bitrate": None,
|
||
"codec": "h264",
|
||
"extra": [],
|
||
"ffmpeg": "ffmpeg",
|
||
"manual": None,
|
||
"video_ext": [".mp4", ".mkv"],
|
||
"compress_dir_name": "compress",
|
||
"resolution": "-1:1080",
|
||
"fps": "30",
|
||
"test_video_resolution": "1920x1080",
|
||
"test_video_fps": "30",
|
||
"test_video_input": "compress_video_test.mp4",
|
||
"test_video_output": "compressed_video_test.mp4",
|
||
}
|
||
|
||
|
||
def get_cmd(video_path,output_file):
|
||
if CFG["manual"] is not None:
|
||
command=[
|
||
CFG["ffmpeg"],
|
||
"-hide_banner",
|
||
"-i", video_path
|
||
]
|
||
command.extend(CFG["manual"])
|
||
command.append(output_file)
|
||
return command
|
||
|
||
if CFG["bitrate"] is not None:
|
||
command = [
|
||
CFG["ffmpeg"],
|
||
"-hide_banner",
|
||
"-i", video_path,
|
||
]
|
||
if CFG['resolution'] is not None:
|
||
command.extend([
|
||
"-vf", f"scale={CFG['resolution']}",])
|
||
command.extend([
|
||
"-c:v", CFG["codec"],
|
||
"-b:v", CFG["bitrate"],
|
||
"-r",CFG["fps"],
|
||
"-y",
|
||
])
|
||
else:
|
||
command = [
|
||
CFG["ffmpeg"],
|
||
"-hide_banner",
|
||
"-i", video_path,
|
||
]
|
||
if CFG['resolution'] is not None:
|
||
command.extend([
|
||
"-vf", f"scale={CFG['resolution']}",])
|
||
command.extend([
|
||
"-c:v", CFG["codec"],
|
||
"-global_quality", str(CFG["crf"]),
|
||
"-r",CFG["fps"],
|
||
"-y",
|
||
])
|
||
|
||
command.extend(CFG["extra"])
|
||
command.append(output_file)
|
||
logging.debug(f"Create CMD: {command}")
|
||
return command
|
||
|
||
|
||
|
||
# 配置logging
|
||
def setup_logging():
|
||
log_dir = Path("logs")
|
||
log_dir.mkdir(exist_ok=True)
|
||
log_file = log_dir / f"video_compress_{datetime.now().strftime('%Y%m%d')}.log"
|
||
stream = RichHandler(rich_tracebacks=True,tracebacks_show_locals=True)
|
||
stream.setLevel(logging.INFO)
|
||
stream.setFormatter(logging.Formatter("%(message)s"))
|
||
|
||
file = logging.FileHandler(log_file, encoding='utf-8')
|
||
file.setLevel(logging.DEBUG)
|
||
|
||
logging.basicConfig(
|
||
level=logging.DEBUG,
|
||
format='%(asctime)s - %(levelname) 7s - %(message)s',
|
||
handlers=[
|
||
file,
|
||
stream
|
||
]
|
||
)
|
||
|
||
def fmt_time(t:float|int) -> str:
|
||
if t>3600:
|
||
return f"{t//3600}h {t//60}min {t%60}s"
|
||
elif t>60:
|
||
return f"{t//60}min {t%60}s"
|
||
else:
|
||
return f"{round(t)}s"
|
||
|
||
def process_video(video_path: Path, compress_dir:Optional[Path]=None ,update_func=None):
|
||
use=None
|
||
sz=video_path.stat().st_size//(1024*1024)
|
||
|
||
if compress_dir is None:
|
||
# 在视频文件所在目录下创建 compress 子目录(如果不存在)
|
||
compress_dir = video_path.parent / CFG["compress_dir_name"]
|
||
else:
|
||
compress_dir /= video_path.parent.relative_to(root)
|
||
|
||
assert isinstance(compress_dir,Path)
|
||
compress_dir.mkdir(exist_ok=True,parents=True)
|
||
|
||
# 输出文件路径:与原文件同名,保存在 compress 目录下
|
||
output_file = compress_dir / (video_path.stem + video_path.suffix)
|
||
if output_file.is_file():
|
||
logging.warning(f"文件{output_file}存在,跳过")
|
||
return use
|
||
|
||
video_path_str = str(video_path.absolute())
|
||
command = get_cmd(video_path_str,output_file)
|
||
|
||
try:
|
||
result = subprocess.Popen(
|
||
command,
|
||
stdout=subprocess.PIPE,
|
||
stderr=subprocess.PIPE,
|
||
encoding="utf-8",
|
||
text=True
|
||
)
|
||
|
||
while result.poll() is None:
|
||
line = " "
|
||
while result.poll() is None and line[-1:] not in "\r\n":
|
||
line+=result.stderr.read(1)
|
||
# print(line[-1])
|
||
if 'warning' in line.lower():
|
||
logging.warning(f"[FFmpeg]({video_path_str}): {line}")
|
||
elif 'error' in line.lower():
|
||
logging.error(f"[FFmpeg]({video_path_str}): {line}")
|
||
elif "frame=" in line:
|
||
# print(line,end="")
|
||
match = re.search(r"frame=\s*(\d+)",line)
|
||
if match:
|
||
frame_number = int(match.group(1))
|
||
if update_func is not None:
|
||
update_func(frame_number)
|
||
|
||
if result.returncode != 0:
|
||
logging.error(f"处理文件 {video_path_str} 失败,返回码: {result.returncode},cmd={' '.join(command)}")
|
||
logging.error(result.stdout)
|
||
logging.error(result.stderr)
|
||
else:
|
||
logging.debug(f"文件处理成功: {video_path_str} -> {output_file}")
|
||
|
||
except KeyboardInterrupt as e:raise e
|
||
except Exception as e:
|
||
logging.error(f"执行 ffmpeg 命令时发生异常, 文件:{str(video_path_str)},cmd={' '.join(map(str,command))}",exc_info=e)
|
||
return use
|
||
|
||
def traverse_directory(root_dir: Path):
|
||
video_extensions = set(CFG["video_ext"])
|
||
sm=None
|
||
# 获取视频文件列表和帧数信息
|
||
video_files = []
|
||
que = list(root_dir.glob("*"))
|
||
while que:
|
||
d = que.pop()
|
||
for file in d.glob("*") if d.is_dir() else [d]:
|
||
if file.parent.name == CFG["compress_dir_name"] or file.name == CFG["compress_dir_name"]:
|
||
continue
|
||
if file.is_file() and file.suffix.lower() in video_extensions:
|
||
video_files.append(file)
|
||
elif file.is_dir():
|
||
que.append(file)
|
||
|
||
|
||
if not video_files:
|
||
logging.warning("未找到需要处理的视频文件")
|
||
return
|
||
|
||
# 获取视频信息
|
||
frames: dict[Path, float] = {}
|
||
info_file = Path("video_info.cache")
|
||
if info_file.is_file():
|
||
try:
|
||
cached_data = loads(info_file.read_bytes())
|
||
if isinstance(cached_data, dict):
|
||
frames = cached_data
|
||
logging.debug("Loaded video info from cache.")
|
||
except Exception as e:
|
||
logging.debug("Failed to load video info cache.",exc_info=e)
|
||
|
||
with Progress() as prog:
|
||
task = prog.add_task("正在获取视频信息", total=len(video_files))
|
||
for file in video_files:
|
||
prog.advance(task)
|
||
if file in frames and frames[file]>0:
|
||
continue
|
||
cmd = f'ffprobe -v error -select_streams v:0 -show_entries stream=avg_frame_rate,duration -of default=nokey=1:noprint_wrappers=1'.split()
|
||
cmd.append(str(file.resolve()))
|
||
proc = subprocess.run(cmd, capture_output=True, text=True)
|
||
if proc.returncode != 0:
|
||
logging.debug(f"无法获取视频信息: {file}, 返回码: {proc.returncode}")
|
||
frames[file] = 0
|
||
continue
|
||
if proc.stdout.strip():
|
||
try:
|
||
avg_frame_rate, duration = proc.stdout.strip().split('\n')
|
||
tmp = avg_frame_rate.split('/')
|
||
avg_frame_rate = float(tmp[0]) / float(tmp[1])
|
||
if duration == "N/A":
|
||
duration = 0
|
||
logging.debug(f"无法获取视频信息: {file}, 时长为N/A,默认使用0s")
|
||
duration = float(duration)
|
||
frames[file] = duration * avg_frame_rate
|
||
except (ValueError, IndexError) as e:
|
||
logging.debug(f"解析视频信息失败: {file}, 错误: {e}")
|
||
frames[file] = 0
|
||
if 0 in frames.values():
|
||
logging.warning(f"视频{', '.join([f.name for f,frames in frames.items() if frames==0])}文件帧数信息获取失败。总进度估计将不准确。")
|
||
try:
|
||
info_file.write_bytes(dumps(frames))
|
||
logging.debug("Saved video info to cache.")
|
||
except Exception as e:
|
||
logging.debug("Failed to save video info cache.",exc_info=e)
|
||
|
||
logging.debug(f"开始遍历目录: {root_dir}, 共{len(frames)}个视频文件")
|
||
|
||
|
||
# 创建进度条
|
||
with Progress() as prog:
|
||
total_frames = sum(frames.values())
|
||
main_task = prog.add_task("总进度", total=total_frames if total_frames > 0 else len(frames))
|
||
|
||
# 创建文件队列
|
||
for file in frames.keys():
|
||
# 进度跟踪
|
||
filename = file.relative_to(root_dir)
|
||
|
||
# 创建文件级进度条
|
||
if frames[file] == 0:
|
||
file_task = prog.add_task(f"{filename}")
|
||
else:
|
||
file_task = prog.add_task(f"{filename}",total=frames[file])
|
||
|
||
|
||
with prog._lock:
|
||
completed_start = prog._tasks[main_task].completed
|
||
|
||
def update_progress(x):
|
||
if frames[file] == 0:
|
||
prog.update(file_task,description=f"{filename} 已处理{x}帧")
|
||
else:
|
||
prog.update(file_task,completed=x)
|
||
prog.update(main_task, completed=completed_start+x)
|
||
|
||
if CFG["save_to"] == "single":
|
||
process_video(file, root_dir/"Compress", update_progress)
|
||
else:
|
||
process_video(file, None, update_progress)
|
||
|
||
# 移除文件级进度条
|
||
prog.remove_task(file_task)
|
||
|
||
try:
|
||
info_file.unlink(missing_ok=True)
|
||
except Exception as e:
|
||
logging.warning("无法删除视频信息缓存文件",exc_info=e)
|
||
|
||
def test():
|
||
os.environ["PATH"] = Path(__file__).parent.as_posix() + os.pathsep + os.environ["PATH"]
|
||
|
||
try:
|
||
subprocess.run([CFG["ffmpeg"],"-version"],stdout=-3,stderr=-3).check_returncode()
|
||
except Exception as e:
|
||
print(__file__)
|
||
logging.critical("无法运行ffmpeg")
|
||
exit(-1)
|
||
try:
|
||
ret = subprocess.run(
|
||
f"ffmpeg -hide_banner -f lavfi -i testsrc=duration=1:size={CFG['test_video_resolution']}:rate={CFG['test_video_fps']} -c:v libx264 -y -pix_fmt yuv420p {CFG['test_video_input']}".split(),
|
||
stdout=subprocess.PIPE,
|
||
stderr=subprocess.PIPE,
|
||
text=True
|
||
)
|
||
if ret.returncode != 0:
|
||
logging.warning("无法生成测试视频.")
|
||
logging.debug(ret.stdout)
|
||
logging.debug(ret.stderr)
|
||
ret.check_returncode()
|
||
cmd = get_cmd(CFG["test_video_input"],CFG["test_video_output"],)
|
||
ret = subprocess.run(
|
||
cmd,
|
||
stdout=subprocess.PIPE,
|
||
stderr=subprocess.PIPE,
|
||
text=True
|
||
)
|
||
if ret.returncode != 0:
|
||
logging.error("测试视频压缩失败")
|
||
logging.debug(ret.stdout)
|
||
logging.debug(ret.stderr)
|
||
logging.error("Error termination via test failed.")
|
||
exit(-1)
|
||
os.remove("compress_video_test.mp4")
|
||
os.remove("compressed_video_test.mp4")
|
||
except KeyboardInterrupt as e:raise e
|
||
except Exception as e:
|
||
if os.path.exists("compress_video_test.mp4"):
|
||
os.remove("compress_video_test.mp4")
|
||
logging.warning("测试未通过,继续运行可能出现未定义行为。")
|
||
logging.debug("Test error",exc_info=e)
|
||
|
||
|
||
def exit_pause():
|
||
if os.name == 'nt':
|
||
os.system("pause")
|
||
elif os.name == 'posix':
|
||
os.system("read -p 'Press Enter to continue...'")
|
||
|
||
def main(_root = None):
|
||
|
||
atexit.register(exit_pause)
|
||
|
||
global root
|
||
setup_logging()
|
||
tot_bgn = time()
|
||
logging.info("-------------------------------")
|
||
logging.info(datetime.now().strftime('Video Compress started at %Y/%m/%d %H:%M'))
|
||
|
||
if CFG_FILE.exists():
|
||
try:
|
||
import json
|
||
cfg:dict = json.loads(CFG_FILE.read_text())
|
||
CFG.update(cfg)
|
||
except KeyboardInterrupt as e:raise e
|
||
except Exception as e:
|
||
logging.warning("Invalid config file, ignored.")
|
||
logging.debug(e)
|
||
|
||
if _root is not None:
|
||
root = Path(_root)
|
||
else:
|
||
# 通过命令行参数传入需要遍历的目录
|
||
if len(sys.argv) < 2:
|
||
print(f"用法:python {__file__} <目标目录>")
|
||
logging.warning("Error termination via invalid input.")
|
||
sys.exit(1)
|
||
root = Path(sys.argv[1])
|
||
|
||
if root.name.lower() == CFG["compress_dir_name"].lower():
|
||
logging.critical("请修改目标目录名为非compress。")
|
||
logging.error("Error termination via invalid input.")
|
||
sys.exit(1)
|
||
|
||
logging.info("开始验证环境")
|
||
test()
|
||
|
||
if not root.is_dir():
|
||
print("提供的路径不是一个有效目录。")
|
||
logging.warning("Error termination via invalid input.")
|
||
sys.exit(1)
|
||
|
||
try:
|
||
traverse_directory(root)
|
||
tot_end = time()
|
||
logging.info(f"Elapsed time: {fmt_time(tot_end-tot_bgn)}")
|
||
logging.info("Normal termination of Video Compress.")
|
||
except KeyboardInterrupt:
|
||
logging.warning("Error termination via keyboard interrupt, CHECK IF LAST PROCSSING VIDEO IS COMPLETED.")
|
||
except Exception as e:
|
||
logging.error("Error termination via unhandled error, CHECK IF LAST PROCSSING VIDEO IS COMPLETED.",exc_info=e)
|
||
|
||
if __name__ == "__main__":
|
||
main()
|