/// <summary>
/// Resizes and saves the image as the asset ID jpg
/// </summary>
/// <param name="VAsset">VOD Asset</param>
/// <param name="Height">Final height of the image</param>
/// <param name="Width">Final width of the image</param>
/// <param name="token">Cancellation token</param>
private int ProcessImage(VODAsset VAsset, int Height, int Width, string vhoName, CancellationToken token)
{
token.ThrowIfCancellationRequested();
//Temporary folder path used to backup any existing images before any manipulation
string tmpPath = Path.Combine(Directory.GetCurrentDirectory(), "Temp");
string tmpFile = string.Empty;
//Create root temp folder if it doesn't exist
if (!Directory.Exists(tmpPath))
{
Directory.CreateDirectory(tmpPath);
}
//Make a temp path child folder by VHO name to prevent asset id conflicts
tmpPath = Path.Combine(tmpPath, vhoName);
if (!Directory.Exists(tmpPath))
{
Directory.CreateDirectory(tmpPath);
}
try
{
//Poster destination file name cannot be null
if (string.IsNullOrEmpty(VAsset.PosterDest))
{
throw new ArgumentNullException("Destination folder cannot be null. " + VAsset.ToString());
}
//Verify file extension is .jpg
if (!VAsset.PosterDest.EndsWith(".jpg"))
{
throw new ArgumentException("(ProcessImages) Invalid destination file name.", VAsset.PosterDest);
}
//Throw error if source file not found, used to populate missing poster log
if (!File.Exists(VAsset.PosterSource))
{
throw new FileNotFoundException(string.Format("(ProcessImages) Source poster file not found. AssetID: {0}", VAsset.AssetId), VAsset.PosterSource);
}
//if destination file already exists, check if it needs updated using timestamp
if (File.Exists(VAsset.PosterDest))
{
tmpFile = Path.Combine(tmpPath, Path.GetFileName(VAsset.PosterDest));
//If a temp file exists in the temp directory for this asset, remove it
if (File.Exists(tmpFile))
{
File.Delete(tmpFile);
}
//Move the file to the temp directory, and set it as a temp file
File.Move(VAsset.PosterDest, tmpFile);
File.SetAttributes(tmpFile, FileAttributes.Temporary);
}
//Resize source image file if it is above 50MB
try
{
FileInfo srcFInfo = new FileInfo(VAsset.PosterSource);
if (((srcFInfo.Length / 1024F) / 1024F) > 50)
{
string tmpName = Path.Combine(Path.GetFullPath(srcFInfo.FullName), Path.GetFileNameWithoutExtension(srcFInfo.FullName) + "_tmp.jpg");
using (var origBM = new Bitmap(srcFInfo.FullName))
using (var srcBM = new Bitmap(origBM, Width, Height))
{
srcBM.Save(tmpName, ImageFormat.Jpeg);
}
File.Copy(tmpName, srcFInfo.FullName, true);
File.Delete(tmpName);
}
}
catch (Exception ex)
{
Trace.TraceError("Failed to resize source image file above 50mb. {0}", ex.Message);
}
//Resize poster, save, and increment progress success if no errors
using (var sourceBM = new Bitmap(VAsset.PosterSource))
using (var destBM = new Bitmap(sourceBM, Width, Height))
//using (var destBM = Toolset.ResizeBitmap(sourceBM, Width, Height, null, null, true))
{
token.ThrowIfCancellationRequested();
destBM.Save(VAsset.PosterDest, ImageFormat.Jpeg);
}
//Verify file was saved and it exists
if (!File.Exists(VAsset.PosterDest))
{
throw new Exception("(ProcessImages) File failed to save in destination folder.");
}
return(0);
}
catch
{
//Restore backup file from temp directory
if (!string.IsNullOrEmpty(tmpFile) && File.Exists(tmpFile))
{
File.Copy(tmpFile, VAsset.PosterDest, true);
}
throw;
}
finally
{
//Delete backup file from temp directory
if (!string.IsNullOrEmpty(tmpFile) && File.Exists(tmpFile))
{
File.Delete(tmpFile);
}
}
}
