public Image ExtractSingleFrame(int positionToExtract, Size dimensions)
{
string tempFile = Path.ChangeExtension(Path.GetTempFileName(), "jpg");
FFMPEGParameters parameters = new FFMPEGParameters()
{
InputFilePath = FilePath,
DisableAudio = true,
OutputOptions = String.Format("-f image2 -ss {0} -vframes 1", positionToExtract),
Size = dimensions,
OutputFilePath = tempFile,
};
;
string output = FFMPEG.Execute(parameters);
if (!File.Exists(tempFile))
{
throw new Exception("Could not create single frame image from video clip");
}
Image previewImage = LoadImageFromFile(tempFile);
try
{
File.Delete(tempFile);
}
catch (Exception ex)
{
throw new Exception("Failed to delete temporary file used for thumbnail " + ex.Message);
}
return(previewImage);
}
public static string Execute(string inputFilePath)
{
if (String.IsNullOrWhiteSpace(inputFilePath))
{
throw new ArgumentNullException("Input file path cannot be null");
}
FFMPEGParameters parameters = new FFMPEGParameters()
{
InputFilePath = inputFilePath
};
return(Execute(parameters));
}
public static string Execute(string inputFilePath)
{
if (String.IsNullOrWhiteSpace(inputFilePath))
{
throw new ArgumentNullException("Input file path cannot be null");
}
FFMPEGParameters parameters = new FFMPEGParameters()
{
InputFilePath = inputFilePath
};
return Execute(parameters);
}
public static string Execute(FFMPEGParameters parameters)
{
if (String.IsNullOrWhiteSpace(FFMPEGExecutableFilePath))
{
throw new ArgumentNullException("Path to FFMPEG executable cannot be null");
}
if (parameters == null)
{
throw new ArgumentNullException("FFMPEG parameters cannot be completely null");
}
using (Process ffmpegProcess = new Process())
{
ProcessStartInfo info = new ProcessStartInfo(FFMPEGExecutableFilePath)
{
Arguments = parameters.ToString(),
WorkingDirectory = Path.GetDirectoryName(FFMPEGExecutableFilePath),
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardError = true
};
ffmpegProcess.StartInfo = info;
ffmpegProcess.Start();
string processOutput = ffmpegProcess.StandardError.ReadToEnd();
ffmpegProcess.WaitForExit();
PreviousBuffers.Enqueue(processOutput);
lock (PreviousBuffers)
{
while (PreviousBuffers.Count > MaximumBuffers)
{
PreviousBuffers.Dequeue();
}
}
return(processOutput);
}
}
private static void ResizeVideo()
{
FFMPEGParameters parameters = new FFMPEGParameters()
{
InputFilePath = m_inputFilePath,
OutputFilePath = m_outputFilePath,
VideoCodec = "libx264",
AudioCodec = "libvo_aacenc",
Format = "flv",
BufferSize = 50000,
Size = new Size(320, 240),
MaximumRate = 400,
Overwrite = true,
OutputOptions = "-ar 22050 -ab 128k -ac 1",
};
string output = FFMPEG.Execute(parameters);
}
public string WatermarkVideo(string watermarkImageFilePath, bool overwrite, WatermarkPosition position, Point offset)
{
string extension = Path.GetExtension(FilePath);
string tempOutputFile = Path.ChangeExtension(Path.GetTempFileName(), extension);
string overlayFormat;
switch (position)
{
case WatermarkPosition.TopLeft:
overlayFormat = "{0}:{1}";
break;
case WatermarkPosition.TopRight:
overlayFormat = "main_w-overlay_w-{0}:{1}";
break;
case WatermarkPosition.BottomLeft:
overlayFormat = "{0}:main_h-overlay_h-{1}";
break;
case WatermarkPosition.BottomRight:
overlayFormat = "main_w-overlay_w-{0}:main_h-overlay_h-{1}";
break;
case WatermarkPosition.Center:
overlayFormat = "(main_w-overlay_w)/2-{0}:(main_h-overlay_h)/2-{1}";
break;
case WatermarkPosition.MiddleLeft:
overlayFormat = "{0}:(main_h-overlay_h)/2-{1}";
break;
case WatermarkPosition.MiddleRight:
overlayFormat = "main_w-overlay_w-{0}:(main_h-overlay_h)/2-{1}";
break;
case WatermarkPosition.CenterTop:
overlayFormat = "(main_w-overlay_w)/2-{0}:{1}";
break;
case WatermarkPosition.CenterBottom:
overlayFormat = "(main_w-overlay_w)/2-{0}:main_h-overlay_h-{1}";
break;
default:
throw new ArgumentException("Invalid position specified");
}
string overlayPostion = String.Format(overlayFormat, offset.X, offset.Y);
FFMPEGParameters parameters = new FFMPEGParameters
{
InputFilePath = FilePath,
OutputFilePath = tempOutputFile,
SameQ = true,
Overwrite = true,
VideoFilter = String.Format("\"movie=\\'{0}\\' [logo]; [in][logo] overlay={1} [out]\"", watermarkImageFilePath.Replace("\\", "\\\\"), overlayPostion)
};
string output = FFMPEG.Execute(parameters);
if (File.Exists(tempOutputFile) == false)
{
throw new ApplicationException(String.Format("Failed to watermark video {0}{1}{2}", FilePath, Environment.NewLine, output));
}
FileInfo watermarkedVideoFileInfo = new FileInfo(tempOutputFile);
if (watermarkedVideoFileInfo.Length == 0)
{
throw new ApplicationException(String.Format("Failed to watermark video {0}{1}{2}", FilePath, Environment.NewLine, output));
}
if (overwrite)
{
File.Delete(FilePath);
File.Move(tempOutputFile, FilePath);
return FilePath;
}
return tempOutputFile;
}
public Image ExtractSingleFrame(int positionToExtract, Size dimensions)
{
string tempFile = Path.ChangeExtension(Path.GetTempFileName(), "jpg");
FFMPEGParameters parameters = new FFMPEGParameters()
{
InputFilePath = FilePath,
DisableAudio = true,
OutputOptions = String.Format("-f image2 -ss {0} -vframes 1", positionToExtract),
Size = dimensions,
OutputFilePath = tempFile,
};
;
string output = FFMPEG.Execute(parameters);
if (!File.Exists(tempFile))
{
throw new Exception("Could not create single frame image from video clip");
}
Image previewImage = LoadImageFromFile(tempFile);
try
{
File.Delete(tempFile);
}
catch (Exception ex)
{
throw new Exception("Failed to delete temporary file used for thumbnail " + ex.Message);
}
return previewImage;
}
public static string Execute(FFMPEGParameters parameters)
{
if (String.IsNullOrWhiteSpace(FFMPEGExecutableFilePath))
{
throw new ArgumentNullException("Path to FFMPEG executable cannot be null");
}
if (parameters == null)
{
throw new ArgumentNullException("FFMPEG parameters cannot be completely null");
}
using (Process ffmpegProcess = new Process())
{
ProcessStartInfo info = new ProcessStartInfo(FFMPEGExecutableFilePath)
{
Arguments = parameters.ToString(),
WorkingDirectory = Path.GetDirectoryName(FFMPEGExecutableFilePath),
UseShellExecute = false,
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardError = true
};
ffmpegProcess.StartInfo = info;
ffmpegProcess.Start();
string processOutput = ffmpegProcess.StandardError.ReadToEnd();
ffmpegProcess.WaitForExit();
PreviousBuffers.Enqueue(processOutput);
lock (PreviousBuffers)
{
while (PreviousBuffers.Count > MaximumBuffers)
{
PreviousBuffers.Dequeue();
}
}
return processOutput;
}
}
public string WatermarkVideo(string watermarkImageFilePath, bool overwrite, WatermarkPosition position, Point offset)
{
string extension = Path.GetExtension(FilePath);
string tempOutputFile = Path.ChangeExtension(Path.GetTempFileName(), extension);
string overlayFormat;
switch (position)
{
case WatermarkPosition.TopLeft:
overlayFormat = "{0}:{1}";
break;
case WatermarkPosition.TopRight:
overlayFormat = "main_w-overlay_w-{0}:{1}";
break;
case WatermarkPosition.BottomLeft:
overlayFormat = "{0}:main_h-overlay_h-{1}";
break;
case WatermarkPosition.BottomRight:
overlayFormat = "main_w-overlay_w-{0}:main_h-overlay_h-{1}";
break;
case WatermarkPosition.Center:
overlayFormat = "(main_w-overlay_w)/2-{0}:(main_h-overlay_h)/2-{1}";
break;
case WatermarkPosition.MiddleLeft:
overlayFormat = "{0}:(main_h-overlay_h)/2-{1}";
break;
case WatermarkPosition.MiddleRight:
overlayFormat = "main_w-overlay_w-{0}:(main_h-overlay_h)/2-{1}";
break;
case WatermarkPosition.CenterTop:
overlayFormat = "(main_w-overlay_w)/2-{0}:{1}";
break;
case WatermarkPosition.CenterBottom:
overlayFormat = "(main_w-overlay_w)/2-{0}:main_h-overlay_h-{1}";
break;
default:
throw new ArgumentException("Invalid position specified");
}
string overlayPostion = String.Format(overlayFormat, offset.X, offset.Y);
FFMPEGParameters parameters = new FFMPEGParameters
{
InputFilePath = FilePath,
OutputFilePath = tempOutputFile,
SameQ = true,
Overwrite = true,
VideoFilter = String.Format("\"movie=\\'{0}\\' [logo]; [in][logo] overlay={1} [out]\"", watermarkImageFilePath.Replace("\\", "\\\\"), overlayPostion)
};
string output = FFMPEG.Execute(parameters);
if (File.Exists(tempOutputFile) == false)
{
throw new ApplicationException(String.Format("Failed to watermark video {0}{1}{2}", FilePath, Environment.NewLine, output));
}
FileInfo watermarkedVideoFileInfo = new FileInfo(tempOutputFile);
if (watermarkedVideoFileInfo.Length == 0)
{
throw new ApplicationException(String.Format("Failed to watermark video {0}{1}{2}", FilePath, Environment.NewLine, output));
}
if (overwrite)
{
File.Delete(FilePath);
File.Move(tempOutputFile, FilePath);
return(FilePath);
}
return(tempOutputFile);
}
