215 lines
7.5 KiB
Python
215 lines
7.5 KiB
Python
import subprocess
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from pathlib import Path
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import sys
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import logging
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from datetime import datetime
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from time import time
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import atexit
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root = None
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CODEC=None
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# 配置logging
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def setup_logging():
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log_dir = Path("logs")
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log_dir.mkdir(exist_ok=True)
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log_file = log_dir / f"video_compress_{datetime.now().strftime('%Y%m%d')}.log"
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stream = logging.StreamHandler()
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stream.setLevel(logging.DEBUG)
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stream.setFormatter(logging.Formatter("%(message)s"))
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file = logging.FileHandler(log_file, encoding='utf-8')
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file.setLevel(logging.INFO)
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logging.basicConfig(
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level=logging.DEBUG,
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format='%(asctime)s - %(levelname) 7s - %(message)s',
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handlers=[
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file,
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stream
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]
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)
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def process_video(video_path: Path):
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global esti_data
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use=None
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sz=video_path.stat().st_size//(1024*1024)
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logging.debug(f"开始处理文件: {video_path.relative_to(root)}，大小{sz}M")
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bgn=time()
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compress_dir = video_path.parent / "compress"
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compress_dir.mkdir(exist_ok=True)
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# 输出文件路径：与原文件同名，保存在 compress 目录下
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output_file = compress_dir / (video_path.stem + video_path.suffix)
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if output_file.is_file():
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logging.warning(f"文件{output_file}存在，跳过")
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return use
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# 4x
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# command = [
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# "ffmpeg.exe", # 可以修改为 ffmpeg 的完整路径，例如：C:/ffmpeg/bin/ffmpeg.exe
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# "-hide_banner", # 隐藏 ffmpeg 的横幅信息
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# "-i", str(video_path.absolute()),
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# "-filter:v", "setpts=0.25*PTS", # 设置视频高度为 1080，宽度按比例自动计算
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# "-filter:a", "atempo=4.0",
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# "-c:v", "h264_qsv", # 使用 Intel Quick Sync Video 编码
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# "-global_quality", "28", # 设置全局质量（数值越低质量越高）
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# "-r","30",
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# "-preset", "fast", # 设置压缩速度为慢（压缩效果较好）
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# "-y",
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# str(output_file.absolute())
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# ]
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# 1x
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if CODEC=="h264_amf":
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command = [
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"ffmpeg.exe",
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"-hide_banner", # 隐藏 ffmpeg 的横幅信息
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"-i", str(video_path.absolute()),
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"-vf", "scale=-1:1080", # 设置视频高度为 1080，宽度按比例自动计算
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"-c:v", CODEC, # 使用 Intel Quick Sync Video 编码
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"-global_quality", "28", # 设置全局质量（数值越低质量越高）
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"-c:a", "copy", # 音频不做处理，直接拷贝
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"-r","30",
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"-y",
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str(output_file)
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]
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else:
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command = [
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"ffmpeg.exe",
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"-hide_banner", # 隐藏 ffmpeg 的横幅信息
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"-i", str(video_path.absolute()),
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"-vf", "scale=-1:1080", # 设置视频高度为 1080，宽度按比例自动计算
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"-c:v", CODEC, # 使用 Intel Quick Sync Video 编码
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"-global_quality", "28", # 设置全局质量（数值越低质量越高）
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"-c:a", "copy", # 音频不做处理，直接拷贝
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"-r","30",
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"-preset", "slow",
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"-y",
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str(output_file)
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]
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try:
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result = subprocess.run(
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command,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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encoding="utf-8",
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text=True
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)
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if result.stderr:
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for line in result.stderr.splitlines():
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if 'warning' in line.lower():
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logging.warning(f"[FFmpeg]({video_path}): {line}")
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elif 'error' in line.lower():
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logging.error(f"[FFmpeg]({video_path}): {line}")
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if result.returncode != 0:
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logging.error(f"处理文件 {video_path} 失败，返回码: {result.returncode}，cmd={' '.join(command)}")
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logging.error(result.stdout)
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logging.error(result.stderr)
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else:
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logging.debug(f"文件处理成功: {video_path} -> {output_file}")
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end=time()
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except Exception as e:
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logging.error(f"执行 ffmpeg 命令时发生异常, 文件：{video_path}，cmd={' '.join(command)}",exc_info=e)
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return use
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def traverse_directory(root_dir: Path):
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video_extensions = {".mp4", ".mkv"}
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sm=None
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logging.debug(f"开始遍历目录: {root_dir}")
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for file in root_dir.rglob("*"):
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if file.parent.name == "compress":continue
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if file.is_file() and file.suffix.lower() in video_extensions:
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t = process_video(file)
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@atexit.register
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def exit_handler():
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subprocess.run("pause", shell=True)
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def _test():
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try:
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subprocess.run(f"ffmpeg -f lavfi -i testsrc=size=1280x720:rate=30 -t 1 -y -c:v {CODEC} -pix_fmt yuv420p test.mp4",stdout=-3,stderr=-3).check_returncode()
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subprocess.run(f"ffmpeg -i test.mp4 -c:v {CODEC} -pix_fmt yuv420p -y test2.mp4",stdout=-3,stderr=-3).check_returncode()
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return True
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except subprocess.CalledProcessError:
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return False
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finally:
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Path("test.mp4").unlink(True)
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Path("test2.mp4").unlink(True)
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if __name__ == "__main__":
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setup_logging()
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tot_bgn = time()
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logging.info("-------------------------------")
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logging.info(datetime.now().strftime('Video Compress started at %Y/%m/%d %H:%M'))
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try:
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subprocess.run("ffmpeg.exe -version",stdout=-3,stderr=-3).check_returncode()
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except subprocess.CalledProcessError:
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logging.critical("FFmpeg 未安装或不在系统 PATH 中。")
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sys.exit(1)
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if len(sys.argv) < 2:
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print(f"推荐用法：python {__file__} <目标目录>")
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root = Path(input("请输入目标目录："))
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while not root.is_dir():
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root = Path(input("请输入目标目录："))
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else:
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root = Path(sys.argv[1])
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if len(sys.argv) == 3:
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CODEC=sys.argv[2]
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logging.info(f"使用编码器因为cmd：{CODEC}")
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if not root.is_dir():
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print("提供的路径不是一个有效目录。")
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logging.warning("Error termination via invalid input.")
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sys.exit(1)
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if CODEC is None:
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logging.info("检测可用编码器")
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try:
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ret = subprocess.run(["ffmpeg","-codecs"],stdout=subprocess.PIPE,stderr=subprocess.PIPE,text=True)
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ret.check_returncode()
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avai = []
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if "cuda" in ret.stdout:avai.append("cuda")
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if "amf" in ret.stdout:avai.append("amf")
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if "qsv" in ret.stdout:avai.append("qsv")
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avai.append("h264")
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for c in avai:
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CODEC = "h264_" + c
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if _test():
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break
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if not _test:
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logging.critical("没有可用的h264编码器。")
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exit(1)
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except Exception as e:
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logging.error("Error termination via unhandled error.",exc_info=e)
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finally:
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logging.info(f"使用编码器：{CODEC}")
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try:
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traverse_directory(root)
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tot_end = time()
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logging.info(f"Elapsed time: {(tot_end-tot_bgn)}s")
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logging.info("Normal termination of Video Compress.")
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except KeyboardInterrupt:
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logging.warning("Error termination via keyboard interrupt, CHECK IF LAST PROCSSING VIDEO IS COMPLETED.")
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except Exception as e:
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logging.error("Error termination via unhandled error, CHECK IF LAST PROCSSING VIDEO IS COMPLETED.",exc_info=e)
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