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POHow can i create an avi video file in real time while my application is processing?
 

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  1. POHow can i create an avi video file in real time while my application is processing?
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    <p>Edit:</p> <p>This is what i did: In Form1:</p> <pre><code>ScreenCapture sc; AviFile af; </code></pre> <p>In Form1 constructor:</p> <pre><code>sc = new ScreenCapture(); af = new AviFile(); </code></pre> <p>In Form1 timer1 tick event:</p> <pre><code>private void timer1_Tick(object sender, EventArgs e) { if (playImages == true) { timer1.Enabled = false; play(); timer1.Enabled = true; } else { af.CreateAvi(this.sc); } } </code></pre> <p>The AviFile class after changed it:</p> <pre><code>using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Text; using System.Windows.Forms; using AviFile; using ScreenShotDemo; namespace ScreenVideoRecorder { class AviFile { AviManager aviManager; Bitmap bmp; public AviFile() { aviManager = new AviManager(@"d:\testdata\new.avi", false); } public void CreateAvi(ScreenCapture sc) { bmp = new Bitmap(sc.CaptureScreen()); VideoStream aviStream = aviManager.AddVideoStream(false, 25, bmp);//dlg.Rate, bmp); aviStream.AddFrame(bmp); bmp.Dispose(); } public AviManager avim { get { return aviManager; } set { aviManager = value; } } } } </code></pre> <p>In Form1 button click event to stop:</p> <pre><code>private void button3_Click(object sender, EventArgs e) { timer1.Enabled = false; if (af != null) { af.avim.Close(); } } </code></pre> <p>But before i stop it after running it after few seconds of taking screenshots: This is button1 wich start the timer and take screenshots:</p> <pre><code>private void button1_Click(object sender, EventArgs e) { playImages = false; timer1.Enabled = true; } </code></pre> <p>After few seconds im getting an exception:</p> <pre><code>Exception in AVIFileCreateStream: -2147205019 System.Exception was unhandled HResult=-2146233088 Message=Exception in AVIFileCreateStream: -2147205019 Source=AviFile StackTrace: at AviFile.VideoStream.CreateStreamWithoutFormat() at AviFile.VideoStream.CreateStream() at AviFile.VideoStream..ctor(Int32 aviFile, Boolean writeCompressed, Double frameRate, Bitmap firstFrame) at AviFile.AviManager.AddVideoStream(Boolean isCompressed, Double frameRate, Bitmap firstFrame) at ScreenVideoRecorder.AviFile.CreateAvi(ScreenCapture sc) in d:\C-Sharp\ScreenVideoRecorder\ScreenVideoRecorder\ScreenVideoRecorder\AviFile.cs:line 27 at ScreenVideoRecorder.Form1.timer1_Tick(Object sender, EventArgs e) in d:\C-Sharp\ScreenVideoRecorder\ScreenVideoRecorder\ScreenVideoRecorder\Form1.cs:line 61 at System.Windows.Forms.Timer.OnTick(EventArgs e) at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message&amp; m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG&amp; msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) at ScreenVideoRecorder.Program.Main() in d:\C-Sharp\ScreenVideoRecorder\ScreenVideoRecorder\ScreenVideoRecorder\Program.cs:line 19 at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: </code></pre> <p>The exception is in the class : VideoStream wich is not my class it's from the site i downloaded the source files: <a href="http://www.codeproject.com/Articles/7388/A-Simple-C-Wrapper-for-the-AviFile-Library" rel="nofollow">http://www.codeproject.com/Articles/7388/A-Simple-C-Wrapper-for-the-AviFile-Library</a></p> <p>How can i fix it ?</p>
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    1. USBen Kochavi
    1. USBen Kochavi
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      1. POHow can i create an avi video file in real time while my application is processing?
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    2. VO
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      1. POHow can i create an avi video file in real time while my application is processing?
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      1. POHow can i create an avi video file in real time while my application is processing?
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    1. COwhy not just have CreateAvi take in a List of bitmaps and skip the file saving/file loading? Or even better, have CreateAvi take in the videostream itself.
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      1. POHow can i create an avi video file in real time while my application is processing?
      1. USJainathan Leung
 

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