21.5 Converting Video to Images
To convert the video to images, a new button is added, “Change” (Figure 21.1). Clicking the button will bring up the form on Figure 21.2, which has a button, “*.avi To Image”. The roles of the three buttons are:
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The “Set Parameter” button will specify the:
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Video-To-Image Directory
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Starting Frame Number
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Ending Frame Number
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Skip Step
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The “*.Avi To Image” button will do the image conversion.
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The “OK” button will end the form.
Double clicking the “*.Avi To Image” button will convert the AVI video to images, which is implemented as follows:
private void button2_Click_1(object sender, System.EventArgs e)
{
if ( ! f.gui.script.aviVideo70.getVideoFileStatus() )
{
richTextBox1.Text =
"Please select a video source first.\n"
+ "Please click the Mode button, then click the source button.\n"
+ "The Mode button can looks like Dir, File, Sub Dir, ...\n";
return;
}
try{
f.mainMenuToAPI.script.aviVideo70.
setVideoToImagesDir (f.gui.videoLiveParameters .imageOutputFolder );
f.mainMenuToAPI.script.aviVideo70.setFrameNumberStart
(f.gui.videoLiveParameters .videoStart ) ;
f.mainMenuToAPI.script.aviVideo70.setFrameNumberEnd
( f.gui.videoLiveParameters .videoEnd ) ;
f.mainMenuToAPI.script.aviVideo70.setFrameNumberStep
(f.gui.videoLiveParameters .videoStep );
}
catch (Exception ee)
{
richTextBox1.Text = ee.ToString () + "\n";
return;
}
if ( ! f.mainMenuToAPI.script.aviVideo70.videoToImages () )
richTextBox1.Text = "Conversion fails!";
else
richTextBox1.AppendText ( "Conversion completed!\n" );
}
The last statement,
f.mainMenuToAPI.script.aviVideo70.videoToImages ()
will convert the *.avi file into images.
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