使用Python开发一个功能完善的媒体文件截帧工具

pip install wxpython opencv-python pillow numpy

main_vbox = wx.BoxSizer(wx.VERTICAL)  # 主垂直布局
hbox = wx.BoxSizer(wx.HORIZONTAL)     # 水平布局

self.cap = cv2.VideoCapture(self.video_path)
self.total_frames = int(self.cap.get(cv2.CAP_PROP_FRAME_COUNT))

self.cap.set(cv2.CAP_PROP_POS_FRAMES, frame_number)
ret, frame = self.cap.read()

# BGR转RGB
frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)

# 调整大小
frame_resized = cv2.resize(frame_rgb, (new_w, new_h))

# 转换为wx图像
wx_image = wx.Image(width, height, frame_resized.tobytes())
wx_bitmap = wx.Bitmap(wx_image)
self.bitmap.SetBitmap(wx_bitmap)

self.frame_slider = wx.Slider(panel, value=0, minValue=0, 
                              maxValue=total_frames-1, 
                              style=wx.SL_HORIZONTAL | wx.SL_LABELS)
self.frame_slider.Bind(wx.EVT_SLIDER, self.on_slider_change)

# 转换为RGB格式
frame_rgb = cv2.cvtColor(self.current_frame, cv2.COLOR_BGR2RGB)
h, w = frame_rgb.shape[:2]

# 创建wxImage和wxBitmap
wx_image = wx.Image(w, h, frame_rgb.tobytes())
wx_bitmap = wx.Bitmap(wx_image)

# 复制到剪贴板
if wx.TheClipboard.Open():
    wx.TheClipboard.Clear()
    wx.TheClipboard.SetData(wx.BitmapDataObject(wx_bitmap))
    wx.TheClipboard.Close()

def on_open_google_ai(self, event):
    import webbrowser as wb
    wb.open('https://aistudio.google.com/')

AttributeError: module 'webbrowser' has no attribute 'open'

import webbrowser as wb
wb.open('https://example.com')

frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)

# 设置到倒数第二帧可能更稳定
cap.set(cv2.CAP_PROP_POS_FRAMES, total_frames - 2)