i found some articles, some projects to create thumbnail of a video, using ffmpeg.exe, expression encoder but when i downloaded the projects they are not working... i am not getting that weather ffmpeg.exe downloaded by having problem or the projects are not working.
if anybody has other sources from where i can see samples. please post it..
-thanks in advance
Here is the class to make thumbnail of either video or mage using ffmpeg.exe
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
namespace Pariwaar.Controller
{
public class imageResize
{
public byte[] ResizeFromByteArray(int MaxSideSize, Byte[] byteArrayIn, string fileName)
{
byte[] byteArray = null; // really make this an error gif
MemoryStream ms = new MemoryStream(byteArrayIn);
byteArray = this.ResizeFromStream(MaxSideSize, ms, fileName);
return byteArray;
}
/// <summary>
/// converts stream to bytearray for resized image
/// </summary>
/// <param name="MaxSideSize"></param>
/// <param name="Buffer"></param>
/// <returns></returns>
public byte[] ResizeFromStream(int MaxSideSize, Stream Buffer, string fileName)
{
byte[] byteArray = null; // really make this an error gif
try
{
Bitmap bitMap = new Bitmap(Buffer);
int intOldWidth = bitMap.Width;
int intOldHeight = bitMap.Height;
int intNewWidth;
int intNewHeight;
int intMaxSide;
if (intOldWidth >= intOldHeight)
{
intMaxSide = intOldWidth;
}
else
{
intMaxSide = intOldHeight;
}
if (intMaxSide > MaxSideSize)
{
//set new width and height
double dblCoef = MaxSideSize / (double)intMaxSide;
intNewWidth = Convert.ToInt32(dblCoef * intOldWidth);
intNewHeight = Convert.ToInt32(dblCoef * intOldHeight);
}
else
{
intNewWidth = intOldWidth;
intNewHeight = intOldHeight;
}
Size ThumbNailSize = new Size(intNewWidth, intNewHeight);
System.Drawing.Image oImg = System.Drawing.Image.FromStream(Buffer);
System.Drawing.Image oThumbNail = new Bitmap(ThumbNailSize.Width, ThumbNailSize.Height);
Graphics oGraphic = Graphics.FromImage(oThumbNail);
oGraphic.CompositingQuality = CompositingQuality.HighQuality;
oGraphic.SmoothingMode = SmoothingMode.HighQuality;
oGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
Rectangle oRectangle = new Rectangle
(0, 0, ThumbNailSize.Width, ThumbNailSize.Height);
oGraphic.DrawImage(oImg, oRectangle);
MemoryStream ms = new MemoryStream();
oThumbNail.Save(ms, ImageFormat.Jpeg);
byteArray = new byte[ms.Length];
ms.Position = 0;
ms.Read(byteArray, 0, Convert.ToInt32(ms.Length));
oGraphic.Dispose();
oImg.Dispose();
ms.Close();
ms.Dispose();
}
catch (Exception)
{
int newSize = MaxSideSize - 20;
Bitmap bitMap = new Bitmap(newSize, newSize);
Graphics g = Graphics.FromImage(bitMap);
g.FillRectangle(new SolidBrush(Color.Gray), new Rectangle(0, 0, newSize, newSize));
Font font = new Font("Courier", 8);
SolidBrush solidBrush = new SolidBrush(Color.Red);
g.DrawString("Failed File", font, solidBrush, 10, 5);
g.DrawString(fileName, font, solidBrush, 10, 50);
MemoryStream ms = new MemoryStream();
bitMap.Save(ms, ImageFormat.Jpeg);
byteArray = new byte[ms.Length];
ms.Position = 0;
ms.Read(byteArray, 0, Convert.ToInt32(ms.Length));
ms.Close();
ms.Dispose();
bitMap.Dispose();
solidBrush.Dispose();
g.Dispose();
font.Dispose();
}
return byteArray;
}
/// <summary>
/// Saves the resized image to specified file name and path as JPEG
/// and also returns the bytearray for any other use you may need it for
/// </summary>
/// <param name="MaxSideSize"></param>
/// <param name="Buffer"></param>
/// <param name="fileName">No Extension</param>
/// <param name="filePath">Examples: "images/dir1/dir2" or "images" or "images/dir1"</param>
/// <returns></returns>
public byte[] SaveFromStream(int MaxSideSize, Stream Buffer, string ErrorMessage, string filePath, string ThumbnailPath)
{
byte[] byteArray = null; // really make this an error gif
try
{
Bitmap bitMap = new Bitmap(Buffer);
int intOldWidth = bitMap.Width;
int intOldHeight = bitMap.Height;
int intNewWidth;
int intNewHeight;
int intMaxSide;
if (intOldWidth >= intOldHeight)
{
intMaxSide = intOldWidth;
}
else
{
intMaxSide = intOldHeight;
}
if (intMaxSide > MaxSideSize)
{
//set new width and height
double dblCoef = MaxSideSize / (double)intMaxSide;
intNewWidth = Convert.ToInt32(dblCoef * intOldWidth);
intNewHeight = Convert.ToInt32(dblCoef * intOldHeight);
}
else
{
intNewWidth = intOldWidth;
intNewHeight = intOldHeight;
}
Size ThumbNailSize = new Size(intNewWidth, intNewHeight);
System.Drawing.Image oImg = System.Drawing.Image.FromStream(Buffer);
System.Drawing.Image oThumbNail = new Bitmap(ThumbNailSize.Width, ThumbNailSize.Height);
Graphics oGraphic = Graphics.FromImage(oThumbNail);
oGraphic.CompositingQuality = CompositingQuality.HighQuality;
oGraphic.SmoothingMode = SmoothingMode.HighQuality;
oGraphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
Rectangle oRectangle = new Rectangle
(0, 0, ThumbNailSize.Width, ThumbNailSize.Height);
oGraphic.DrawImage(oImg, oRectangle);
//Save File
string newFileName = filePath;
oThumbNail.Save(newFileName, ImageFormat.Jpeg);
MemoryStream ms = new MemoryStream();
oThumbNail.Save(ms, ImageFormat.Jpeg);
//--- done by vrunda create thmbnail
System.Drawing.Image.GetThumbnailImageAbort dummyCallBack = new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);
System.Drawing.Image thumbNailImg =oThumbNail.GetThumbnailImage(100, 100, dummyCallBack, IntPtr.Zero);
thumbNailImg.Save(ThumbnailPath, ImageFormat.Jpeg);
//----- done by vrunda
byteArray = new byte[ms.Length];
ms.Position = 0;
ms.Read(byteArray, 0, Convert.ToInt32(ms.Length));
oGraphic.Dispose();
oImg.Dispose();
ms.Close();
ms.Dispose();
}
catch (Exception)
{
int newSize = MaxSideSize - 20;
Bitmap bitMap = new Bitmap(newSize, newSize);
Graphics g = Graphics.FromImage(bitMap);
g.FillRectangle(new SolidBrush(Color.Gray), new Rectangle(0, 0, newSize, newSize));
Font font = new Font("Courier", 8);
SolidBrush solidBrush = new SolidBrush(Color.Red);
g.DrawString("Failed To Save File or Failed File ", font, solidBrush, 10, 5);
g.DrawString(ErrorMessage, font, solidBrush, 10, 50);
MemoryStream ms = new MemoryStream();
bitMap.Save(ms, ImageFormat.Jpeg);
byteArray = new byte[ms.Length];
ms.Position = 0;
ms.Read(byteArray, 0, Convert.ToInt32(ms.Length));
ms.Close();
ms.Dispose();
bitMap.Dispose();
solidBrush.Dispose();
g.Dispose();
font.Dispose();
}
return byteArray;
}
public bool ThumbnailCallback()
{
return false;
}
}
}