C# 获取GIF帧率-每张图像的时间间隔

public int GetDelay(string sfile) 

         { 

             Image img = Image.FromFile("D:\\000.gif");//加载Gif图片 

             FrameDimension dim = new FrameDimension(img.FrameDimensionsList[0]); 

             int framcount = img.GetFrameCount(dim); 

             if (framcount <= 1) 

                 return 0; 

             else 

             { 

                 int delay = 0; 

                 bool stop = false; 

                 for (int i = 0; i < framcount; i++)//遍历图像帧 

                 { 

                     if (stop == true) 

                         break; 

                     img.SelectActiveFrame(dim, i);//激活当前帧 

                     for (int j = 0; j < img.PropertyIdList.Length; j++)//遍历帧属性 

                     { 

                         if ((int)img.PropertyIdList.GetValue(j) == 0x5100)//如果是延迟时间 

                         { 

                             PropertyItem pItem = (PropertyItem)img.PropertyItems.GetValue(j);//获取延迟时间属性 

                             byte[] delayByte = new byte[4];//延迟时间，以1/100秒为单位 

                             delayByte[0] = pItem.Value[i * 4]; 

                             delayByte[1] = pItem.Value[1 + i * 4]; 

                             delayByte[2] = pItem.Value[2 + i * 4]; 

                             delayByte[3] = pItem.Value[3 + i * 4]; 

                             delay = BitConverter.ToInt32(delayByte, 0) * 10; //乘以10，获取到毫秒 

                             stop = true; 

                             break; 

                         } 

                     } 



                 } 

                 return delay; 

             } 





         }