public static int GeneratePreview(string videoPath, string targetFilePath, Metadata metadata = null)
{
if (string.IsNullOrEmpty(videoPath) || !File.Exists(videoPath) || string.IsNullOrEmpty(targetFilePath))
{
return(0);
}
if (metadata?.Video == null)
{
using FastMetadataCommand command = new FastMetadataCommand
{
Input = videoPath,
Timeout = TimeSpan.FromMinutes(3)
};
if (!command.Run())
{
return(0);
}
metadata = command.Metadata;
}
if (metadata?.Video == null)
{
return(0);
}
if (!File.Exists(targetFilePath))
{
try
{
using ThumbnailCommand command = new ThumbnailCommand
{
Input = videoPath,
Output = targetFilePath,
PreviewMode = true,
Overwrite = true,
Height = THUMB_HEIGHT,
Timeout = TimeSpan.FromMinutes(5)
};
if (metadata.Video.Size.Height > 0)
{
double factor = (double)metadata.Video.Size.Width / metadata.Video.Size.Height;
command.VideoThumbWidth = (int)Math.Ceiling(command.Height * factor);
}
if (!command.Run())
{
return(0);
}
}
catch
{
FileHelper.Delete(targetFilePath);
return(0);
}
}
int videoThumbWidth = 0;
if (metadata.Video.Size.Height > 0)
{
double factor = (double)metadata.Video.Size.Width / metadata.Video.Size.Height;
videoThumbWidth = (int)Math.Ceiling(THUMB_HEIGHT * factor);
}
return(videoThumbWidth);
}
public static int GenerateThumbnail(string videoPath, string targetFilePath, Metadata metadata = null)
{
if (string.IsNullOrEmpty(videoPath) || !File.Exists(videoPath) || string.IsNullOrEmpty(targetFilePath))
{
return(0);
}
if (metadata?.Video == null)
{
using FastMetadataCommand command = new FastMetadataCommand
{
Input = videoPath
};
if (!command.Run())
{
return(0);
}
metadata = command.Metadata;
}
if (metadata?.Video == null)
{
return(0);
}
if (!File.Exists(targetFilePath))
{
try
{
using ThumbnailCommand command = new ThumbnailCommand
{
Input = videoPath,
Output = targetFilePath,
Overwrite = true,
Height = THUMB_HEIGHT,
Timeout = TimeSpan.FromMinutes(5)
};
// this f**k twat didn't create the thumb! maybe the duration is too little or it didn't find scene changes (boring video!)
if (!command.Run() || !File.Exists(targetFilePath))
{
// OK, let's give it another try with fixed time scan
command.Seek = TimeSpan.FromSeconds(1);
command.SceneFilter = -1.0f;
if (!command.Run() || !File.Exists(targetFilePath))
{
return(0);
}
}
}
catch
{
FileHelper.Delete(targetFilePath);
return(0);
}
}
int videoThumbWidth = 0;
if (metadata.Video.Size.Height > 0)
{
double factor = (double)metadata.Video.Size.Width / metadata.Video.Size.Height;
videoThumbWidth = (int)Math.Ceiling(THUMB_HEIGHT * factor);
}
return(videoThumbWidth);
}