Re: Troubleshooting Import AVI macro

Posted by Wayne Rasband on Jul 12, 2009; 9:19pm
URL: http://imagej.273.s1.nabble.com/Troubleshooting-Import-AVI-macro-tp3691807p3691808.html

> Hi,
> I know there is a very simple solution here, but being very new
> to ImageJ macros I am at a loss for a solution.
>
> I am putting together a macro for batch folder processing a group  
> of AVI
> movies that begins by importing the AVI as a stack.  I'd like to  
> set the
> first and last frame as part of the macro.  As a template I started
> with the macro BatchProcessFolders.txt.  Here's the relevant code:
>
> function processFile(path) {
>        if (endsWith(path, ".avi")) {
>            open(path);
>
> I'd like the open to include the first and last frame parameters.
> I also tried using run("AVI...") with the first and last frames  
> included
> but also ran into problems there.

Use the File>Import>AVI command with the command recorder  
(Plugins>Macros>Record) to generate the needed code. Here is an  
example that opens frames 5-10 of an AVI:

    run("AVI...", "select=/Users/wayne/video.avi first=5 last=10");

Use string concatenation to make the file name, first frame and last  
frame variables:

    name = "video.avi";
    path = getDirectory("home")+"video.avi";
    first=5; last=10;
    run("AVI...", "select="+path+" first="+first+" last="+last);

Note that the file path needs to be enclosed in square brackets if it  
can contain spaces:

    path = "["+getDirectory("home")+name+"]";

-wayne