pfi.processImg("D:\\and.mp4");
public String ffmpegpath = "c:/workspace/ffmpeg.exe"; // ffmpeg.exe的目录
public boolean processImg(String path) {
File fi = new File(path);
List commend = new ArrayList();
commend.add(ffmpegpath);
commend.add("-i ");
commend.add(path);
commend.add("-y");
commend.add("-f");
commend.add("image2");
commend.add("-ss");
commend.add("38");
commend.add("-t");
commend.add("0.001");
commend.add("-s");
commend.add("320x240");
commend.add("D:\\flv\\ss" + ".jpg");
try {
ProcessBuilder builder = new ProcessBuilder();
builder.command(commend);
builder.redirectErrorStream(true);
System.out.println("视频截图开始...");
// builder.start();
Process process = builder.start();
InputStream in = process.getInputStream();
byte[] re = new byte[1024];
System.out.print("正在进行截图，请稍候");
while (in.read(re) != -1) {
System.out.print(".");
}
System.out.println("");
in.close();
System.out.println("视频截图完成...");
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
显示：
视频截图开始...
正在进行截图，请稍候.
视频截图完成...
截图成功！
就是找不到图片，请教。。。。
------解决方案--------------------------------------------------------
把COMMAND输出一下，或者调试看看出什么值，然后在CMD里面执行一下看是否成功。
分享一下我写的视频截图部分代码，.NET。
- C# code
System.Diagnostics.Process p = new System.Diagnostics.Process(); string ffmpeg = System.Web.HttpContext.Current.Server.MapPath("~/Content/ffmpeg/") + "ffmpeg.exe"; string ExportName = System.Web.HttpContext.Current.Server.MapPath(filePath + FileType + "/" + thisDate.ToString().Replace(" ", "") + "/") + randomDateTime + ".jpg"; string Command = ffmpeg + " -i " + FromName + " -y -s 640*480 -ss 00:00:02 -vframes 1 -an -sameq -f mjpeg " + ExportName; log.Debug("command is :" + Command); uploadFile.PreviewImage = ConfigurationSettings.AppSettings["WebSiteUrl"] + filePath.Replace("~", "") + FileType + "/" + thisDate.ToString().Replace(" ", "") + "/" + randomDateTime + ".jpg"; //System.Diagnostics.Process p = new System.Diagnostics.Process(); p.StartInfo.FileName = "cmd.exe "; p.StartInfo.WorkingDirectory = System.Web.HttpContext.Current.Server.MapPath(filePath) + FileType + "/" + thisDate.ToString().Replace(" ", ""); p.StartInfo.UseShellExecute = false; p.StartInfo.RedirectStandardInput = true; p.StartInfo.RedirectStandardOutput = true; p.StartInfo.RedirectStandardError = true; p.StartInfo.CreateNoWindow = true; //开始执行 p.Start(); p.StandardInput.WriteLine(Command); p.StandardInput.WriteLine("Exit"); p.WaitForExit();