public override string GenerateThumbnail()
{
// Get temp path where thumbnail should be stored
string outputPath = GetTempFilename("jpg");
// Get actual video dimensions
m_Logger.DebugFormat("Video dimensions are: {0}x{1}", m_Width, m_Height);
// Get dimensions of the thumbnail to be generated
Size dimensions = GetAspectImageSize(m_Width, m_Height, ThumbnailSize.Width, ThumbnailSize.Height);
m_Logger.DebugFormat("Thumbnail will be resized to: {0}x{1}", dimensions.Width, dimensions.Height);
// Get settings
string ffmpeg = GetSetting("FFmpegExecutablePath");
string args = GetSetting("FFmpegThumbnailArgs");
// Replace keywords
args = args.Replace("[INPUT]", InputPath.WrapInQuotes());
args = args.Replace("[OUTPUT]", outputPath.WrapInQuotes());
args = args.Replace("[WIDTH]", dimensions.Width.ToString());
args = args.Replace("[HEIGHT]", dimensions.Height.ToString());
// Execute FFmpeg command line
CommandLineExecuter.Execute(ffmpeg, args);
return(outputPath);
}
public override string GeneratePreview()
{
string extension = (Path.GetExtension(InputPath) ?? string.Empty).ToLower();
// Get temp path where FLV should be stored
string outputPath = GetTempFilename(GetExtensionGenerated(extension));
// Get settings
string ffmpeg = GetSetting("FFmpegExecutablePath");
string args = GetSetting("FFmpegPreviewArgs");
// Replace keywords
args = args.Replace("[INPUT]", InputPath.WrapInQuotes());
args = args.Replace("[OUTPUT]", outputPath.WrapInQuotes());
args = args.Replace("[WIDTH]", PreviewSize.Width.ToString());
args = args.Replace("[HEIGHT]", PreviewSize.Height.ToString());
// Apply watermark
if (!String.IsNullOrEmpty(WatermarkPath) && File.Exists(WatermarkPath))
{
string watermarkArgs = GetSetting("FFmpegWatermarkArgs");
if (String.IsNullOrEmpty(watermarkArgs))
{
m_Logger.WarnFormat("Unable to apply watermark; no command arguments specified");
}
else
{
watermarkArgs = watermarkArgs.Replace("[WATERMARK]", WatermarkPath.WrapInQuotes());
args = args.Replace("[WATERMARK-ARGS]", watermarkArgs);
}
}
// Remove watermark args placeholder, in case no watermark was requested or file not found
args = args.Replace("[WATERMARK-ARGS]", string.Empty);
// Execute FFmpeg command line
CommandLineExecuter.Execute(ffmpeg, args);
// Update FLV metadata (fixes duration & seek problems)
string flvtool = GetSetting("FLVToolExecutablePath");
string flvtoolargs = string.Format("-U {0}", outputPath);
CommandLineExecuter.Execute(flvtool, flvtoolargs);
return(outputPath);
}
