视频路径(extension.wmv,.avi)存储在SQL Server中。我必须在ASPX页面上创建缩略图和显示它。
如果有人知道,请分享其代码。
先谢谢
答案 0 :(得分:0)
对于AVI,您可以使用以下代码项目
http://www.codeproject.com/Articles/7388/A-Simple-C-Wrapper-for-the-AviFile-Library
其他人试试
答案 1 :(得分:0)
我有一些用于生成缩略图视频的代码。
为此您需要有名为“ffmpeg.exe”的第三方exe,它是免费提供的。您可以从here
下载现在我创建了一个功能,在其下面生成原始视频的缩略图视频。 你可以根据你的要求改变变量。
private bool SaveVideo(FileUpload fupload)
{
string VideoResolutionWidth = "400" ; //define video res. width
string VideoResolutionHeight = "280"; //define video res. height
string VideoThumbWidth = "100";//define jpg res. width
string VideoThumbHeight = "100"; //define jpg res. height
string VideoLocation = HttpContext.Current.Server.MapPath("~/ConverterFolder/Video/");
string ConverterPath = HttpContext.Current.Server.MapPath("~/ConverterFolder/");
String LargeFileName = "TestVideo.wmv"; // Thumb Video file name
string ThumbFileName= "Testvideo.jpg";
// Save Original video file first
if (fupload.PostedFile.FileName != "")
{
fupload.PostedFile.SaveAs(ConverterPath + "\\" + System.IO.Path.GetFileName(fupload.PostedFile.FileName.Replace(" ", "_")));
}
if (System.IO.File.Exists(ConverterPath + "\\" + System.IO.Path.GetFileName(fupload.PostedFile.FileName.Replace(" ", "_"))))
{
string inipath = ConverterPath;
string flvCMD, flvArg;
string a_res_width, a_res_height, a_audioRate, a_frameRate, i_res_width, i_res_height;
a_res_width = VideoResolutionWidth;
a_res_height = VideoResolutionHeight;
i_res_width = VideoThumbWidth;
i_res_height = VideoThumbHeight;
a_audioRate = "22050";
a_frameRate = "15";
string VideoThumbResolution = i_res_width + "x" + i_res_height;
string VideoResolution = a_res_width + "x" + a_res_height;
String videoPATH = VideoLocation + "\\" + LargeFileName.Replace(" ", "_");
flvCMD = ConverterPath + "ffmpeg.exe";
flvArg = "-i " + ConverterPath + "\\" + System.IO.Path.GetFileName(fupload.PostedFile.FileName.Replace(" ", "_")) + " -s " + VideoResolution + " -r " + a_frameRate + " -b 7500000 -ar " + a_audioRate + " -ab 48 " + videoPATH;
try
{
Process process = new Process();
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.FileName = flvCMD;
process.StartInfo.Arguments = flvArg;
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.Start();
string output = process.StandardOutput.ReadToEnd();
process.Close();
process.Dispose();
if (System.IO.File.Exists(videoPATH))
{
Process process1 = new Process();
process1.StartInfo.UseShellExecute = false;
process1.StartInfo.RedirectStandardOutput = true;
process1.StartInfo.RedirectStandardError = true;
process1.StartInfo.CreateNoWindow = true;
process1.StartInfo.FileName = flvCMD;
process1.StartInfo.Arguments = "-i " + ConverterPath + "\\" + System.IO.Path.GetFileName(fupload.PostedFile.FileName.Replace(" ", "_")) + " -an -ss 00:00:01 -r 1 -vframes 1 -s " + VideoThumbResolution + " -f mjpeg -y " + VideoLocation "\\" + ThumbFileName;
process1.Start();
string outputMeta1 = process1.StandardOutput.ReadToEnd();
process1.Close();
process1.Dispose();
}
else
{
return false;
}
}
catch (Exception)
{
}
}
return true;
}
希望这会对你有所帮助。快乐的编码......