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How to get "image.start" and similar parameters

Jim Polk

September 01, 2015 14:27

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Howdy,

Writing an RV plugin,...when RV has loaded several movie files,..the plugin does following

           sources = commands.nodesOfType("RVFileSource")

                  for i in range(0, len(sources) ):
                        media = commands.getStringProperty(sources[i] + ".media.movie")[0]
                        files = commands.existingFilesInSequence(media)

and can find the full path from  files[0] etc...

But I need to query each movie to get its duration, and/or start,end...

From the Reference Manual, it appears that one can simply do a:

            start = commands.getIntProperty(sources[i] + ".image.start")
            end   = commands.getIntProperty(sources[i] + ".image.end"  )

that throws an exception:

       Exception: Exception thrown while calling commands.getIntProperty -- exception: "invalid property name sourceGroup000000_source.image.start", program exception

What am I doing wrong?

Thanks!

Jim

 

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3 comments

• 0
  
  Jim Polk September 03, 2015 07:41

  Found an alternative way,...like so:

   

          sources = commands.nodesOfType("RVFileSource")
  
          for i in range(0, len(sources) ):
              media = commands.getStringProperty(sources[i] + ".media.movie")[0]
              files = commands.existingFilesInSequence(media)
  
              info  = commands.sourceMediaInfo(sources[i], files[0])
  
              start = info['startFrame']
              end   = info['endFrame']
  
  

  There are some other parameters in the "info" dictionary...

  Still, I'd be curious why the original syntax doesn't work...

  Thanks,

  Jim

   

• 0
  
  Alan Trombla September 03, 2015 07:41

  Hi Jim,

  Glad you got something working.  About this:

  start = commands.getIntProperty(sources[i] + ".image.start")

  since sources[i] is an RVFileSource nodes, you can only set the properties listed here:

  http://www.tweaksoftware.com/static/documentation/rv/current/html/rv_reference.html#RVFileSource

  (Unless you create new custom properties yourself.)   There is no ".image.start" property on the RVFileSource, so trying to set it throws an exception.

  Cheers,

  Alan

• 0
  
  Jim Polk September 03, 2015 07:41

  Thanks Alan!...

  
  Btw,..can I get your thoughts on this: https://support.shotgunsoftware.com/entries/96049468

  Cheers,