private void buttonPreview_Click(object sender, EventArgs e)
{
try
{
buttonPreview.Enabled = false;
labelPreviewPleaseWait.Visible = true;
Cursor = Cursors.WaitCursor;
// generate blank video
var tempVideoFileName = Path.Combine(Path.GetTempPath(), Guid.NewGuid() + ".mkv");
var process = VideoPreviewGenerator.GenerateVideoFile(
tempVideoFileName,
2,
(int)numericUpDownWidth.Value,
(int)numericUpDownHeight.Value,
Color.Black,
true,
25,
null);
process.Start();
while (!process.HasExited)
{
System.Threading.Thread.Sleep(100);
Application.DoEvents();
}
// make temp assa file with font
var assaTempFileName = GetAssaFileName(tempVideoFileName);
var sub = new Subtitle();
sub.Header = _assaSubtitle.Header;
sub.Paragraphs.Add(new Paragraph(GetPreviewParagraph()));
if (!_isAssa)
{
SetStyleForNonAssa(sub);
}
FixRightToLeft(sub);
FileUtil.WriteAllText(assaTempFileName, new AdvancedSubStationAlpha().ToText(sub, string.Empty), new TextEncoding(Encoding.UTF8, "UTF8"));
// hardcode subtitle
var outputVideoFileName = Path.Combine(Path.GetTempPath(), Guid.NewGuid() + ".mp4");
process = GetFfmpegProcess(tempVideoFileName, outputVideoFileName, assaTempFileName);
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
while (!process.HasExited)
{
System.Threading.Thread.Sleep(100);
Application.DoEvents();
}
string bmpFileName;
try
{
bmpFileName = VideoPreviewGenerator.GetScreenShot(outputVideoFileName, "00:00:01");
using (var bmp = new Bitmap(bmpFileName))
{
using (var form = new ExportPngXmlPreview(bmp))
{
form.AllowNext = false;
form.AllowPrevious = false;
labelPreviewPleaseWait.Visible = false;
form.ShowDialog(this);
}
}
}
catch
{
if (comboBoxVideoEncoding.Text.EndsWith("_amf"))
{
MessageBox.Show("Unable to generate video with AMD hardware acceleration!");
}
else if (comboBoxVideoEncoding.Text.EndsWith("_nvenc"))
{
MessageBox.Show("Unable to generate video with Nvidia hardware acceleration!");
}
else
{
MessageBox.Show("Unable to generate video!");
}
Cursor = Cursors.Default;
buttonPreview.Enabled = true;
labelPreviewPleaseWait.Visible = false;
return;
}
try
{
File.Delete(tempVideoFileName);
File.Delete(assaTempFileName);
File.Delete(outputVideoFileName);
File.Delete(bmpFileName);
}
catch
{
// ignore
}
}
finally
{
Cursor = Cursors.Default;
buttonPreview.Enabled = true;
labelPreviewPleaseWait.Visible = false;
}
}
/// <summary>
/// The link label preview_ link clicked.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void linkLabelPreview_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
this.linkLabelPreview.Enabled = false;
this.Cursor = Cursors.WaitCursor;
try
{
int width;
int height;
this.GetResolution(out width, out height);
using (var bmp = new Bitmap(width, height))
{
using (var g = Graphics.FromImage(bmp))
{
var p = this._subtitle.Paragraphs[this.subtitleListView1.SelectedItems[0].Index];
this.FillPreviewBackground(bmp, g, p);
var nBmp = new NikseBitmap(this.pictureBox1.Image as Bitmap);
nBmp.CropSidesAndBottom(100, Color.Transparent, true);
using (var textBmp = nBmp.GetBitmap())
{
var bp = this.MakeMakeBitmapParameter(this.subtitleListView1.SelectedItems[0].Index, width, height);
var alignment = GetAlignmentFromParagraph(bp, this._format, this._subtitle);
if (this.comboBoxHAlign.Visible && alignment == ContentAlignment.BottomCenter && this._format.GetType() != typeof(AdvancedSubStationAlpha) && this._format.GetType() != typeof(SubStationAlpha))
{
if (this.comboBoxHAlign.SelectedIndex == 0)
{
alignment = ContentAlignment.BottomLeft;
}
else if (this.comboBoxHAlign.SelectedIndex == 2)
{
alignment = ContentAlignment.BottomRight;
}
}
int x = (bmp.Width - textBmp.Width) / 2;
if (alignment == ContentAlignment.BottomLeft || alignment == ContentAlignment.MiddleLeft || alignment == ContentAlignment.TopLeft)
{
x = int.Parse(this.comboBoxBottomMargin.Text);
}
else if (alignment == ContentAlignment.BottomRight || alignment == ContentAlignment.MiddleRight || alignment == ContentAlignment.TopRight)
{
x = bmp.Width - textBmp.Width - int.Parse(this.comboBoxBottomMargin.Text);
}
int y = bmp.Height - textBmp.Height - int.Parse(this.comboBoxBottomMargin.Text);
if (alignment == ContentAlignment.BottomLeft || alignment == ContentAlignment.MiddleLeft || alignment == ContentAlignment.TopLeft)
{
x = int.Parse(this.comboBoxBottomMargin.Text);
}
else if (alignment == ContentAlignment.BottomRight || alignment == ContentAlignment.MiddleRight || alignment == ContentAlignment.TopRight)
{
x = bmp.Width - textBmp.Width - int.Parse(this.comboBoxBottomMargin.Text);
}
if (alignment == ContentAlignment.MiddleLeft || alignment == ContentAlignment.MiddleCenter || alignment == ContentAlignment.MiddleRight)
{
y = (this.groupBoxExportImage.Height - 4 - textBmp.Height) / 2;
}
else if (alignment == ContentAlignment.TopLeft || alignment == ContentAlignment.TopCenter || alignment == ContentAlignment.TopRight)
{
y = int.Parse(this.comboBoxBottomMargin.Text);
}
g.DrawImageUnscaled(textBmp, new Point(x, y));
}
}
using (var form = new ExportPngXmlPreview(bmp))
{
this.Cursor = Cursors.Default;
form.ShowDialog(this);
}
}
}
finally
{
this.Cursor = Cursors.Default;
this.linkLabelPreview.Enabled = true;
}
}
private void buttonPreview_Click(object sender, EventArgs e)
{
try
{
buttonPreview.Enabled = false;
labelPreviewPleaseWait.Visible = true;
Cursor = Cursors.WaitCursor;
// generate blank video
var tempVideoFileName = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString() + ".mkv");
var process = VideoPreviewGenerator.GenerateVideoFile(
tempVideoFileName,
2,
(int)numericUpDownWidth.Value,
(int)numericUpDownHeight.Value,
Color.Black,
true,
25);
process.Start();
while (!process.HasExited)
{
System.Threading.Thread.Sleep(100);
Application.DoEvents();
}
// make temp assa file with font
var assaTempFileName = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString() + ".ass");
var sub = new Subtitle();
sub.Header = _assaSubtitle.Header;
sub.Paragraphs.Add(new Paragraph(GetPreviewText(), 0, 10_000));
if (numericUpDownFontSize.Visible) // not ASSA format
{
SetStyleForNonAssa(sub);
}
FixRightToLeft(sub);
File.WriteAllText(assaTempFileName, new AdvancedSubStationAlpha().ToText(sub, string.Empty));
// hardcode subtitle
var outputVideoFileName = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString() + ".mp4");
process = GetFfmpegProcess(tempVideoFileName, outputVideoFileName, assaTempFileName);
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
while (!process.HasExited)
{
System.Threading.Thread.Sleep(100);
Application.DoEvents();
}
Cursor = Cursors.Default;
var bmpFileName = VideoPreviewGenerator.GetScreenShot(outputVideoFileName, "00:00:01");
using (var bmp = new Bitmap(bmpFileName))
{
using (var form = new ExportPngXmlPreview(bmp))
{
form.AllowNext = false;
form.AllowPrevious = false;
labelPreviewPleaseWait.Visible = false;
form.ShowDialog(this);
}
}
try
{
File.Delete(tempVideoFileName);
File.Delete(assaTempFileName);
File.Delete(outputVideoFileName);
File.Delete(bmpFileName);
}
catch
{
// ignore
}
}
finally
{
Cursor = Cursors.Default;
buttonPreview.Enabled = true;
labelPreviewPleaseWait.Visible = false;
}
}
