581 lines
20 KiB
Python
581 lines
20 KiB
Python
import subprocess
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from pathlib import Path
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import sys
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import os
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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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from rich.logging import RichHandler
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from rich.progress import Progress
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from pickle import dumps, loads
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from typing import Optional, Callable,Literal
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import atexit
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import re
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import get_frame
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from pydantic import BaseModel,Field,field_validator,model_validator
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class Config(BaseModel):
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save_to:Literal["single","multi"] = Field("single",description="保存到单文件夹，或者每个子文件夹创建compress_dir")
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crf: Optional[int] = Field(None, ge=0, le=51, description="CRF值，范围0-51")
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bitrate: Optional[str] = Field(None, description="比特率，格式如: 1000k, 2.5M, 1500B")
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codec: str = Field("h264",description="ffmpeg的codec，如果使用GPU需要对应设置")
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hwaccel:Optional[Literal["amf","qsv","cuda"]] = Field(None,description="使用GPU加速")
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extra:Optional[list[str]] = Field(None,description="插入到ffmpeg输出前的自定义参数")
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ffmpeg:str = "ffmpeg"
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ffprobe:str = "ffprobe"
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manual:Optional[list[str]] = Field(None,description=r"手动设置ffmpeg，命令ffmpeg -i {input} {manual} {output}")
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video_ext:list[str] = Field([".mp4", ".mkv"],description="视频文件后缀，含.")
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compress_dir_name:str = Field("compress",description="压缩文件夹名称")
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resolution: Optional[str] = Field(None,description="统一到特定尺寸，None为不使用缩放")
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fps:int = Field(30,description="fps",ge=0)
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test_video_resolution:str = "1920x1080"
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test_video_fps:int = Field(30,ge=0)
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test_video_input:str = "compress_video_test.mp4"
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test_video_output:str = "compressed_video_test.mp4"
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disable_hwaccel_when_fail:bool = Field(True,description="当运行失败时，禁用硬件加速")
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@field_validator('bitrate')
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@classmethod
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def validate_bitrate(cls, v: Optional[str]) -> Optional[str]:
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if v is None:
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return v
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pattern = r'^[\d\.]+[MkB]*$'
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if not re.match(pattern, v):
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raise ValueError('bitrate格式不正确，应为数字+单位(M/k/B)，如: 1000k, 2.5M')
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return v
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@field_validator('resolution')
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@classmethod
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def validate_resolution(cls, v: Optional[str]) -> Optional[str]:
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if v is None:
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return v
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pattern = r'^((-1)|\d+):((-1)|\d+)$'
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if not re.match(pattern, v):
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raise ValueError('resolution格式不正确，应为{数字/-1}:{数字/-1}')
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return v
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@field_validator("compress_dir_name")
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# @field_validator("test_video_input")
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# @field_validator("test_video_output")
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@classmethod
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def valid_path(cls, v:str) -> str:
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if re.search(r'[\\/:*?"<>|\x00-\x1F]',v):
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raise ValueError("某配置不符合目录名语法")
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return v
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@model_validator(mode='after')
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def validate_mutual_exclusive(self):
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crf_none = self.crf is None
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bitrate_none = self.bitrate is None
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# 有且只有一者为None
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if crf_none == bitrate_none:
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raise ValueError('crf和bitrate必须互斥：有且只有一个为None')
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return self
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root = None
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if os.environ.get("INSTALL", "0") == "1":
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CFG_FILE= Path(os.getenv("APPDATA", "C:/")) / "VideoCompress" / "config.json"
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else:
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CFG_FILE= Path(sys.path[0]) / "config.json"
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CFG = {
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"save_to": "single",
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"crf": "18",
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"bitrate": None,
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"codec": "h264",
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"hwaccel": None,
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"extra": [],
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"ffmpeg": "ffmpeg",
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"manual": None,
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"video_ext": [".mp4", ".mkv"],
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"compress_dir_name": "compress",
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"resolution": None,
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"fps": "30",
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"test_video_resolution": "1920x1080",
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"test_video_fps": "30",
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"test_video_input": "compress_video_test.mp4",
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"test_video_output": "compressed_video_test.mp4",
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"disable_hwaccel_when_fail": True,
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}
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def get_cmd(video_path: str | Path, output_file: str | Path) -> list[str]:
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if isinstance(video_path, Path):
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video_path = str(video_path.resolve())
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if isinstance(output_file, Path):
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output_file = str(output_file.resolve())
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if CFG["manual"] is not None:
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command = [CFG["ffmpeg"], "-hide_banner", "-i", video_path]
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command.extend(CFG["manual"])
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command.append(output_file)
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return command
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command = [
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CFG["ffmpeg"],
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"-hide_banner",
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]
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if CFG["hwaccel"] is not None:
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command.extend(
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[
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"-hwaccel",
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CFG["hwaccel"],
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"-hwaccel_output_format",
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CFG["hwaccel"],
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]
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)
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command.extend(
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[
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"-i",
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video_path,
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]
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)
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if CFG["bitrate"] is not None:
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if CFG["resolution"] is not None:
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command.extend(
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[
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"-vf",
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f"scale={CFG['resolution']}",
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]
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)
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command.extend(
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[
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"-c:v",
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CFG["codec"],
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"-b:v",
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CFG["bitrate"],
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"-r",
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str(CFG["fps"]),
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"-y",
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]
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)
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else:
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if CFG["resolution"] is not None:
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command.extend(
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[
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"-vf",
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f"scale={CFG['resolution']}",
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]
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)
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command.extend(
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[
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"-c:v",
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CFG["codec"],
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"-global_quality",
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str(CFG["crf"]),
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"-r",
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str(CFG["fps"]),
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"-y",
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]
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)
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command.extend(CFG["extra"])
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command.append(output_file)
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logging.debug(f"Create CMD: {command}")
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return command
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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 = RichHandler(rich_tracebacks=True, tracebacks_show_locals=True)
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stream.setLevel(logging.INFO)
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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.DEBUG)
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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=[file, stream],
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)
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def fmt_time(t: float | int) -> str:
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if t > 3600:
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return f"{t//3600}h {t//60}min {t%60}s"
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elif t > 60:
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return f"{t//60}min {t%60}s"
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else:
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return f"{round(t)}s"
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def process_video(
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video_path: Path,
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compress_dir: Optional[Path] = None,
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update_func: Optional[Callable[[Optional[int], Optional[str]], None]] = None,
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):
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if compress_dir is None:
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# 在视频文件所在目录下创建 compress 子目录（如果不存在）
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compress_dir = video_path.parent / CFG["compress_dir_name"]
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else:
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assert root
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compress_dir /= video_path.parent.relative_to(root)
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assert isinstance(compress_dir, Path)
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compress_dir.mkdir(exist_ok=True, parents=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 False
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video_path_str = str(video_path.absolute())
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command = get_cmd(video_path_str, output_file)
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try:
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result = subprocess.Popen(
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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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total = ""
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while result.poll() is None:
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line = " "
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while result.poll() is None and line[-1:] not in "\r\n":
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assert result.stderr is not None
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line += result.stderr.read(1)
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total += line[-1]
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# print(line[-1])
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if "warning" in line.lower():
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logging.warning(f"[FFmpeg]({video_path_str}): {line}")
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elif "error" in line.lower():
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logging.error(f"[FFmpeg]({video_path_str}): {line}")
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elif "assertion" in line.lower():
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logging.error(f"[FFmpeg]({video_path_str}): {line}")
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elif "frame=" in line and update_func is not None:
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# print(line,end="")
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match = re.search(r"frame=\s*(\d+)", line)
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frame_number = int(match.group(1)) if match else None
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match = re.search(r"[\d\.]+x", line)
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rate = match.group(0) if match else None
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update_func(frame_number, rate)
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if result.returncode != 0:
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logging.error(
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f"处理文件 {video_path_str} 失败"
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)
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logging.debug(f"返回码: {result.returncode}; cmd={' '.join(command)}")
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output_file.unlink(missing_ok=True)
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assert result.stdout is not None
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logging.debug(result.stdout.read())
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logging.debug(total)
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if CFG["hwaccel"] == "mediacodec" and CFG["codec"] in [
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"h264_mediacodec",
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"hevc_mediacodec",
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]:
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logging.info(
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"mediacodec硬件加速器已知在较短片段上存在异常，将禁用加速重试。"
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)
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output_file.unlink(missing_ok=True)
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bak = CFG.copy()
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CFG["hwaccel"] = None
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CFG["codec"] = "h264" if CFG["codec"] == "h264_mediacodec" else "hevc"
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assert not output_file.exists()
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ret = process_video(video_path, compress_dir, update_func)
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CFG.update(bak)
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if not ret:
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logging.error("重试仍然失败。")
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return False
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else:
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return True
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elif CFG["disable_hwaccel_when_fail"] and CFG["hwaccel"] is not None:
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logging.info("正在禁用硬件加速器重试，进度条可能发生混乱。")
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output_file.unlink(missing_ok=True)
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bak = CFG.copy()
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CFG["hwaccel"] = None
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if (
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CFG["codec"].endswith("_mediacodec")
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or CFG["codec"].endswith("_qsv")
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or CFG["codec"].endswith("_nvenc")
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or CFG["codec"].endswith("_amf")
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):
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CFG["codec"] = CFG["codec"].split("_")[0]
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assert not output_file.exists()
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ret = process_video(video_path, compress_dir, update_func)
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CFG.update(bak)
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if not ret:
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logging.error("重试仍然失败。")
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return False
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else:
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logging.debug(f"文件处理成功: {video_path_str} -> {output_file}")
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|
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except KeyboardInterrupt as e:
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raise e
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except Exception as e:
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logging.error(
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f"执行 ffmpeg 命令时发生异常, 文件：{str(video_path_str)}，cmd={' '.join(map(str,command))}",
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exc_info=e,
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)
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return False
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return True
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def traverse_directory(root_dir: Path):
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video_extensions = set(CFG["video_ext"])
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sm = None
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# 获取视频文件列表和帧数信息
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video_files:list[Path] = []
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que = list(root_dir.glob("*"))
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while que:
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d = que.pop()
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for file in d.glob("*") if d.is_dir() else [d]:
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if (
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file.parent.name == CFG["compress_dir_name"]
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or file.name == CFG["compress_dir_name"]
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):
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continue
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if file.is_file() and file.suffix.lower() in video_extensions:
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video_files.append(file)
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elif file.is_dir():
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que.append(file)
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|
||
if not video_files:
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logging.warning("未找到需要处理的视频文件")
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||
return
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# 获取视频信息
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||
frames: dict[Path, float] = {}
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cached_data: dict[Path, float] = {}
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||
info_file = Path("video_info.cache")
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||
if info_file.is_file():
|
||
try:
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||
cached_data = loads(info_file.read_bytes())
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||
if isinstance(cached_data, dict):
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logging.debug("Loaded video info from cache.")
|
||
else:
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||
cached_data = {}
|
||
except Exception as e:
|
||
logging.debug("Failed to load video info cache.", exc_info=e)
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||
|
||
with Progress() as prog:
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||
task = prog.add_task("正在获取视频信息", total=len(video_files))
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||
for file in video_files:
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||
prog.advance(task)
|
||
if file in cached_data and cached_data[file] > 0:
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frames[file] = cached_data[file]
|
||
continue
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||
fr = get_frame.get_video_frame_count(str(file.resolve()))
|
||
if fr is None:
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logging.debug(
|
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f"无法获取视频信息: {file}, 时长为N/A，默认使用0s"
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)
|
||
frames[file] = 0 if fr is None else fr
|
||
if 0 in frames.values():
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||
logging.warning(
|
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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。"
|
||
)
|
||
prog.remove_task(task)
|
||
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, rate):
|
||
if frames[file] == 0:
|
||
prog.update(
|
||
file_task,
|
||
description=f"{filename} 已处理{x}帧 {f'速率{rate}' if rate else ''}",
|
||
)
|
||
else:
|
||
prog.update(
|
||
file_task,
|
||
completed=x,
|
||
description=f"{filename} {f'速率{rate}' if rate else ''}",
|
||
)
|
||
prog.update(main_task, completed=completed_start + x)
|
||
|
||
if CFG["save_to"] == "single":
|
||
process_video(
|
||
file, root_dir / CFG["compress_dir_name"], update_progress
|
||
)
|
||
else:
|
||
process_video(file, None, update_progress)
|
||
|
||
# 移除文件级进度条
|
||
prog.update(main_task, completed=completed_start + frames[file])
|
||
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"{CFG['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)
|
||
|
||
if get_frame.get_video_frame_count("compress_video_test.mp4") is None:
|
||
logging.error("测试读取帧数失败，将无法正确显示进度。")
|
||
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_model = Config(**cfg)
|
||
CFG.update(cfg_model.model_dump())
|
||
get_frame.ffprobe = CFG["ffprobe"]
|
||
logging.debug(cfg_model)
|
||
logging.debug(CFG)
|
||
except KeyboardInterrupt as e:
|
||
raise e
|
||
except Exception as e:
|
||
logging.warning("Invalid config file, ignored.")
|
||
logging.debug(e)
|
||
else:
|
||
try:
|
||
import json
|
||
|
||
CFG_FILE.write_text(json.dumps(CFG, indent=4))
|
||
logging.info("Config file created.")
|
||
except Exception as e:
|
||
logging.warning("Failed to create config file.", exc_info=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__":
|
||
sys.argv.append(r'C:\Users\flt\Documents\WeChat Files\wxid_m8h0igh8p52p22\FileStorage\Video')
|
||
main()
|