clean train in videocomrepe
This commit is contained in:
@ -22,10 +22,9 @@ class VideoConfig:
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crf: int = 18
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codec: str = "h264"
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ffmpeg: str = "ffmpeg"
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video_ext: List[str] = None
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extra: List[str] = None
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video_ext: List[str] = [".mp4", ".mkv"]
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extra: List[str] = []
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manual: Optional[List[str]] = None
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train: bool = False
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bitrate: Optional[str] = None
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def __post_init__(self):
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@ -550,9 +549,6 @@ class ConfigUI(QMainWindow):
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group.addLayout(custom_layout)
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# 实验性功能
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self.train_checkbox = QCheckBox("启用训练模式 (实验性)")
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self.train_checkbox.setToolTip("实验性功能,可能不稳定")
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group.addWidget(self.train_checkbox)
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return group
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@ -775,7 +771,6 @@ class ConfigUI(QMainWindow):
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if self.config.manual:
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self.custom_edit.setText(" ".join(self.config.manual))
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self.train_checkbox.setChecked(self.config.train)
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def _save_config(self):
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"""保存配置"""
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@ -841,7 +836,6 @@ class ConfigUI(QMainWindow):
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if custom_text:
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config.manual = custom_text.split()
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config.train = self.train_checkbox.isChecked()
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# 保存文件
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config_path = self._get_config_path()
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@ -7,18 +7,14 @@ 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
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import atexit
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import re
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import threading
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import queue
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import psutil
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from concurrent.futures import ThreadPoolExecutor, as_completed
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root = None
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TRAIN = False
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ESTI_FILE = Path(sys.path[0])/"esti.out"
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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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@ -29,11 +25,9 @@ CFG = {
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"ffmpeg": "ffmpeg",
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"manual": None,
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"video_ext": [".mp4", ".mkv"],
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"train": False,
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"compress_dir_name": "compress",
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"resolution": "-1:1080",
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"fps": "30",
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"esti_data_file": "estiminate_data.dat",
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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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@ -42,7 +36,6 @@ CFG = {
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"cpu_monitor_interval": 3, # CPU监控间隔(秒)
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"cpu_monitor_duration": 30, # 统计持续时间(秒,5分钟)
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}
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esti=None # :tuple[list[int],list[float]]
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# CPU监控相关全局变量
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ffmpeg_processes = {} # 存储活动的ffmpeg进程
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@ -98,18 +91,6 @@ def get_cmd(video_path,output_file):
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command.append(output_file)
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return command
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def train_init():
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global esti_data,TRAIN,data_file
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data_file = Path(CFG["esti_data_file"])
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if data_file.exists():
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esti_data=loads(data_file.read_bytes())
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if not isinstance(esti_data,tuple):
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esti_data=([],[])
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else:
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esti_data=([],[])
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TRAIN=True
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atexit.register(save_esti)
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# print(esti_data)
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# 配置logging
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@ -133,82 +114,6 @@ def setup_logging():
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]
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)
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def polyfit_manual(x, y, degree=2):
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"""手动实现二次多项式最小二乘拟合"""
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n = len(x)
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if n != len(y):
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raise ValueError("输入的x和y长度必须相同")
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# 对于二次多项式 y = ax^2 + bx + c
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# 构建矩阵方程 A * [a, b, c]^T = B
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# 其中 A = [[sum(x^4), sum(x^3), sum(x^2)],
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# [sum(x^3), sum(x^2), sum(x)],
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# [sum(x^2), sum(x), n]]
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# B = [sum(x^2 * y), sum(x * y), sum(y)]
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# 计算需要的和
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sum_x = sum(x)
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sum_x2 = sum(xi**2 for xi in x)
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sum_x3 = sum(xi**3 for xi in x)
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sum_x4 = sum(xi**4 for xi in x)
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sum_y = sum(y)
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sum_xy = sum(xi*yi for xi, yi in zip(x, y))
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sum_x2y = sum(xi**2*yi for xi, yi in zip(x, y))
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# 构建矩阵A和向量B
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A = [
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[sum_x4, sum_x3, sum_x2],
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[sum_x3, sum_x2, sum_x],
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[sum_x2, sum_x, n]
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]
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B = [sum_x2y, sum_xy, sum_y]
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# 使用高斯消元法解线性方程组
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# 将增广矩阵 [A|B] 转换为行阶梯形式
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AB = [row + [b] for row, b in zip(A, B)]
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n_rows = len(AB)
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# 高斯消元
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for i in range(n_rows):
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# 寻找当前列中最大元素所在的行
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max_row = i
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for j in range(i + 1, n_rows):
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if abs(AB[j][i]) > abs(AB[max_row][i]):
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max_row = j
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# 交换行
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AB[i], AB[max_row] = AB[max_row], AB[i]
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# 将当前行主元归一化
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pivot = AB[i][i]
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if pivot == 0:
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raise ValueError("矩阵奇异,无法求解")
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for j in range(i, n_rows + 1):
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AB[i][j] /= pivot
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# 消元
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for j in range(n_rows):
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if j != i:
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factor = AB[j][i]
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for k in range(i, n_rows + 1):
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AB[j][k] -= factor * AB[i][k]
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# 提取结果
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coeffs = [AB[i][n_rows] for i in range(n_rows)]
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return coeffs # [a, b, c] 对应 ax^2 + bx + c
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def save_esti():
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try:
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if len(esti_data[0]) > 0:
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coeffs = polyfit_manual(esti_data[0], esti_data[1])
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# 保存为逗号分隔的文本格式
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ESTI_FILE.write_text(','.join(map(str, coeffs)))
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except Exception as e:
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logging.warning("保存估算数据失败")
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logging.debug("error at save_esti",exc_info=e)
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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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@ -253,11 +158,10 @@ def cpu_monitor():
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if len(cpu_stats["ffmpeg"]) > max_samples:
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cpu_stats["ffmpeg"] = cpu_stats["ffmpeg"][-max_samples:]
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logging.debug(f"CPU监控: 系统={system_cpu:.1f}%, FFmpeg总计={ffmpeg_cpu_total:.1f}%, 活动进程={len(active_processes)}")
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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.debug(f"CPU监控异常: {e}")
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logging.error(f"CPU监控异常: {e}")
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# 等待下一次监控
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threading.Event().wait(CFG["cpu_monitor_interval"])
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@ -310,37 +214,8 @@ def unregister_ffmpeg_process(proc_id):
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if proc_id in ffmpeg_processes:
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del ffmpeg_processes[proc_id]
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def func(sz:int,src=False):
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if TRAIN:
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try:
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data_file.write_bytes(dumps(esti_data))
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except KeyboardInterrupt as e:raise e
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except Exception as e:
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logging.warning("无法保存数据",exc_info=e)
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try:
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if TRAIN:
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if len(esti_data[0])==0:
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return -1 if src else "NaN"
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coeffs = polyfit_manual(esti_data[0], esti_data[1])
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t = coeffs[0]*sz**2 + coeffs[1]*sz + coeffs[2]
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elif esti is not None:
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t = esti[0]*sz**2 + esti[1]*sz + esti[2]
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# print(t,sz)
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else:
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logging.warning(f"Unexpected condition at func->TRAIN")
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return -1 if src else "NaN"
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t = round(t)
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if src:
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return t
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return fmt_time(t)
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except KeyboardInterrupt as e:raise e
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except Exception as e:
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logging.warning("无法计算预计时间")
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logging.debug("esti time exception", exc_info=e)
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return -1 if src else "NaN"
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def process_video(video_path: Path, compress_dir:Optional[Path]=None, update_func=None, proc_id=None):
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global esti_data, current_instances
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global current_instances
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use=None
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sz=video_path.stat().st_size//(1024*1024)
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@ -350,7 +225,8 @@ def process_video(video_path: Path, compress_dir:Optional[Path]=None, update_fun
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compress_dir = video_path.parent / CFG["compress_dir_name"]
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else:
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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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@ -402,10 +278,6 @@ def process_video(video_path: Path, compress_dir:Optional[Path]=None, update_fun
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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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end=time()
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if TRAIN:
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esti_data[0].append(sz)
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esti_data[1].append(end-bgn)
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except KeyboardInterrupt as e:raise e
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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:{str(video_path_str)},cmd={' '.join(map(str,command))}",exc_info=e)
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@ -425,68 +297,52 @@ def traverse_directory(root_dir: Path):
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global current_instances
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video_extensions = set(CFG["video_ext"])
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sm=None
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if esti is not None:
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raise DeprecationWarning("不再支持训练模式")
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logging.info(f"正在估算时间(当存在大量小文件时,估算值将会很离谱)")
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sm = 0
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for file in root_dir.rglob("*"):
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if file.parent.name.lower() == CFG["compress_dir_name"].lower():continue
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# 获取视频文件列表和帧数信息
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video_files = []
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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("*"):
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if file.parent.name == CFG["compress_dir_name"] or file.name == CFG["compress_dir_name"]:
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continue
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if file.is_file() and file.suffix.lower() in video_extensions:
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sz=file.stat().st_size//(1024*1024)
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tmp = func(sz,True)
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if not isinstance(tmp,int):
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logging.error("无法预估时间,因为预估函数返回非整数")
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elif tmp == -1:
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logging.error("无法预估时间,因为预估函数返回了异常")
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sm += tmp
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logging.info(f"预估用时:{fmt_time(sm)}")
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else:
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# 获取视频文件列表和帧数信息
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video_files = []
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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("*"):
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if file.parent.name == CFG["compress_dir_name"] or file.name == CFG["compress_dir_name"]:
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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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video_files.append(file)
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elif file.is_dir():
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que.append(file)
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# exit()
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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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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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frames: dict[Path, float] = {}
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for file in video_files:
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prog.advance(task)
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cmd = f'ffprobe -v error -select_streams v:0 -show_entries stream=avg_frame_rate,duration -of default=nokey=1:noprint_wrappers=1'.split()
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cmd.append(str(file))
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proc = subprocess.run(cmd, shell=True, capture_output=True, text=True)
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if proc.returncode != 0:
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logging.debug(f"无法获取视频信息: {file}, 返回码: {proc.returncode}")
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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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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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frames: dict[Path, float] = {}
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for file in video_files:
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prog.advance(task)
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cmd = f'ffprobe -v error -select_streams v:0 -show_entries stream=avg_frame_rate,duration -of default=nokey=1:noprint_wrappers=1'.split()
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cmd.append(str(file))
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proc = subprocess.run(cmd, shell=True, capture_output=True, text=True)
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if proc.returncode != 0:
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logging.debug(f"无法获取视频信息: {file}, 返回码: {proc.returncode}")
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frames[file] = 0
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continue
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if proc.stdout.strip():
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try:
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avg_frame_rate, duration = proc.stdout.strip().split('\n')
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tmp = avg_frame_rate.split('/')
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avg_frame_rate = float(tmp[0]) / float(tmp[1])
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if duration == "N/A":
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duration = 0
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logging.debug(f"无法获取视频信息: {file}, 时长为N/A,默认使用0s")
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duration = float(duration)
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frames[file] = duration * avg_frame_rate
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except (ValueError, IndexError) as e:
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logging.debug(f"解析视频信息失败: {file}, 错误: {e}")
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frames[file] = 0
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continue
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if proc.stdout.strip():
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try:
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avg_frame_rate, duration = proc.stdout.strip().split('\n')
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tmp = avg_frame_rate.split('/')
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avg_frame_rate = float(tmp[0]) / float(tmp[1])
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if duration == "N/A":
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duration = 0
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logging.debug(f"无法获取视频信息: {file}, 时长为N/A,默认使用0s")
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duration = float(duration)
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frames[file] = duration * avg_frame_rate
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except (ValueError, IndexError) as e:
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logging.debug(f"解析视频信息失败: {file}, 错误: {e}")
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frames[file] = 0
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logging.debug(f"开始遍历目录: {root_dir}, 共{len(frames)}个视频文件")
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@ -662,19 +518,6 @@ def test():
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logging.warning("测试未通过,继续运行可能出现未定义行为。")
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logging.debug("Test error",exc_info=e)
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def init_train():
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global esti
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if CFG["train"]:
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train_init()
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else:
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if ESTI_FILE.exists():
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try:
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# 从文件读取系数
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coeffs_str = ESTI_FILE.read_text().strip().split(',')
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esti = [float(coeff) for coeff in coeffs_str]
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except KeyboardInterrupt as e:raise e
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except Exception as e:
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logging.warning(f"预测输出文件{str(ESTI_FILE)}存在但无法读取", exc_info=e)
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def exit_pause():
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if os.name == 'nt':
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@ -686,7 +529,7 @@ def main(_root = None):
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atexit.register(exit_pause)
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global root, esti
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global root
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setup_logging()
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tot_bgn = time()
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logging.info("-------------------------------")
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@ -720,8 +563,6 @@ def main(_root = None):
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logging.info("开始验证环境")
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test()
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init_train()
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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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Reference in New Issue
Block a user