public void Create_Gif_Img_To_Png_Test()
{
var isExists = File.Exists(imageGifPath);
Assert.IsTrue(isExists, "文件存在");
AnimatedGifDecoder de = new AnimatedGifDecoder();
de.Read(imageGifPath);
for (int i = 0, count = de.GetFrameCount(); i < count; i++)
{
System.DrawingCore.Image frame = de.GetFrame(i);
frame.Save(outputFilePath + Guid.NewGuid().ToString() + ".png");
}
}
/// <summary>
///
/// </summary>
/// <param name="imageGifPath"></param>
/// <param name="outputFilePath"></param>
/// <returns></returns>
public ReturnValues DecomposeAminmate(string imageGifPath, string outputFilePath, string fileNamePrefix = null, string FileNameSuffix = ".png")
{
var isExists = File.Exists(imageGifPath);
if (!isExists)
{
return(new ReturnValues()
{
Success = false
});
}
AnimatedGifDecoder de = new AnimatedGifDecoder();
de.Read(imageGifPath);
List <string> list = new List <string>();
for (int i = 0, count = de.GetFrameCount(); i < count; i++)
{
if (string.IsNullOrWhiteSpace(fileNamePrefix))
{
fileNamePrefix = Guid.NewGuid().ToString();
}
outputFilePath = outputFilePath + fileNamePrefix + FileNameSuffix;
try
{
System.DrawingCore.Image frame = de.GetFrame(i);
frame.Save(outputFilePath);
}
catch (Exception ex)
{
Console.WriteLine("捕获异常，不处理" + ex.Message);
}
list.Add(outputFilePath);
}
return(new ReturnValues()
{
Success = list.Count == de.GetFrameCount() ? true : false,
FrameCount = de.GetFrameCount(),
Delay = de.GetDelay(0),
FrameSize = de.GetFrameSize(),
OutputFilePaths = list,
});
}
/// <summary>
/// 分解GIF
/// </summary>
/// <param name="imagePath"></param>
/// <param name="outputPath"></param>
/// <param name="list"></param>
/// <param name="fileNamePrefix"></param>
/// <param name="fileNameSuffix"></param>
/// <returns></returns>
public bool SetGifImage(string imagePath, string outputPath, out List <string> list, string fileNamePrefix = null, string fileNameSuffix = ".png")
{
bool success = false;
list = new List <string>();
AnimatedGifDecoder de = new AnimatedGifDecoder();
de.Read(imagePath);
for (int i = 0, count = de.GetFrameCount(); i < count; i++)
{
Image frame = de.GetFrame(i);
var saveOutputPath = outputPath + fileNamePrefix + Guid.NewGuid().ToString("N") + fileNameSuffix;
frame.Save(saveOutputPath);
list.Add(saveOutputPath);
success = File.Exists(saveOutputPath) ? true : false;
}
return(success);
}
/// <summary>
/// 添加图片水印
/// </summary>
/// <param name="sourceImage">源图片</param>
/// <param name="waterImage">水印图片</param>
/// <param name="dissolve">透明度，取值范围1-100，默认值为100（完全不透明）。</param>
/// <param name="imagePosition">水印位置</param>
/// <param name="distanceX">横轴边距，单位:像素(px)，默认值为10。</param>
/// <param name="distanceY">纵轴边距，单位:像素(px)，默认值为10。</param>
/// <param name="watermarkScale">水印图片自适应原图的短边比例，ws的取值范围为0-1。具体是指水印图片保持原比例，并短边缩放到原图短边＊ws。</param>
/// <param name="watermarkScaleType">水印图片自适应原图的类型，取值0、1、2、3分别表示为自适应原图的短边、长边、宽、高，默认值为0</param>
/// <returns>水印图片</returns>
public Image SetWaterMark(Image sourceImage, Image waterImage, float dissolve = 100, ImagePosition imagePosition = ImagePosition.RigthBottom, int distanceX = 10, int distanceY = 10, int watermarkScale = 0, int watermarkScaleType = 0)
{
dissolve = dissolve > 100 ? 100 : dissolve;
dissolve = dissolve < 0 ? 0 : dissolve;
//水印图片不支持gif
if (waterImage.RawFormat.Guid == ImageFormat.Gif.Guid)
{
throw new Exception("waterImage ImageFormat Gif");
}
if (sourceImage.RawFormat.Guid == ImageFormat.Gif.Guid)
{
string localPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "temp", Guid.NewGuid().ToString("N"));
if (!Directory.Exists(localPath))
{
Directory.CreateDirectory(localPath);
}
//拆分gif
string tempGif = Path.Combine(localPath, Guid.NewGuid().ToString("N") + ".gif");
sourceImage.Save(tempGif, ImageFormat.Gif);
List <Info> list = new List <Info>();
//历史保存
AnimatedGifDecoder de = new AnimatedGifDecoder();
de.Read(tempGif);
var tempRepeat = de.GetLoopCount();
for (int i = 0, count = de.GetFrameCount(); i < count; i++)
{
Image frame = de.GetFrame(i);
string tempPng = Path.Combine(localPath, "sc_" + Guid.NewGuid().ToString("N") + ".png");
frame.Save(tempPng);
//图片添加水印
var img = SetWaterMarkByImg(frame, waterImage, dissolve, imagePosition, distanceX, distanceY, watermarkScale, watermarkScaleType);
string tempWaterPng = Path.Combine(localPath, "waterImage_" + Guid.NewGuid().ToString("N") + ".png");
img.Save(tempWaterPng);
list.Add(new Info
{
imgDelay = de.GetDelay(i),
imgPath = tempWaterPng,
});
}
//拼接GIF
AnimatedGifEncoder e1 = new AnimatedGifEncoder();
e1.Start(tempGif);
e1.SetRepeat(tempRepeat); //-1:不循环,0:总是循环 播放
foreach (var info in list)
{
e1.SetDelay(info.imgDelay);
e1.AddFrame(Image.FromFile(info.imgPath));
}
e1.Finish();
Image temp = Image.FromFile(tempGif);
return(temp);
}
return(SetWaterMarkByImg(sourceImage, waterImage, dissolve, imagePosition, distanceX, distanceY, watermarkScale, watermarkScaleType));
}