Roku Developer Program

[mediaman]

Hi everyone. Sorry but I am very much a newbie at this but hoping that someone could please answer my query (speak to me like I am a child please 😉 )

I have video assets uploaded to a brightcove account and I have followed the instructions to edit the required docs within the brightcove/roku app as outlined in their 'readme' doc (http://opensource.brightcove.com/projec ... sample-app) - but upon installing to my Roku 2 box I get the following code error:

ERROR compiling /pkg:/source/appHomeScreen.brs:
SUB or FUNCTION defined twice. (compile error &had) in ...pkg:source/appHomeScreen.brs (35)

Line 35 in the appHomeScreen.brs file reads as:

Function showHomeScreen(screen) As Integer


How do I resolve this problem? I am sure there is a 'common sense' answer but thats the problem (common sense!!). All of the code is pasted below. Please advise/help. Thanks for reading this.
Regards
Mediaman

'*****************************************************************
'**  Video Player Example Application -- Home Screen
'**  November 2009
'**  Copyright (c) 2009 Roku Inc. All Rights Reserved.
'*****************************************************************

'******************************************************
'** Perform any startup/initialization stuff prior to 
'** initially showing the screen.  
'******************************************************
Function preShowHomeScreen(breadA=invalid, breadB=invalid) As Object

    if validateParam(breadA, "roString", "preShowHomeScreen", true) = false return -1
    if validateParam(breadA, "roString", "preShowHomeScreen", true) = false return -1

    port=CreateObject("roMessagePort")
    screen = CreateObject("roPosterScreen")
    screen.SetMessagePort(port)
    if breadA<>invalid and breadB<>invalid then
        screen.SetBreadcrumbText(breadA, breadB)
    end if

    screen.SetListStyle("flat-category")
    screen.setAdDisplayMode("scale-to-fit")
    return screen

End Function


'******************************************************
'** Display the home screen and wait for events from 
'** the screen. The screen will show retreiving while
'** we fetch and parse the feeds for the game posters
'******************************************************
Function showHomeScreen(screen) As Integer

    if validateParam(screen, "roPosterScreen", "showHomeScreen") = false return -1

	initCategoryList()
	screen.SetListNames(m.CategoryNames)
	
	m.curCategory = 0
	screen.SetContentList(getContentForCategory(m.curCategory))	
	
    screen.SetFocusedListItem(0)
    screen.Show()

    while true
        msg = wait(0, screen.GetMessagePort())
        if type(msg) = "roPosterScreenEvent" then
            print "showHomeScreen | msg = "; msg.GetMessage() " | index = "; msg.GetIndex()
            if msg.isListFocused() then
                print "list focused | index = "; msg.GetIndex() 
					m.curCategory = msg.GetIndex()
					screen.SetContentList(getContentForCategory(m.curCategory))
            else if msg.isListItemSelected() then
                print "list item selected | index = "; msg.GetIndex()
               	showVideoScreen(getContentForCategory(m.curCategory)[msg.GetIndex()])
            else if msg.isScreenClosed() then
                return -1
            end if
        end If
    end while

    return 0

End Function




'************************************************************
'** initialize the category list.  We fetch a category list
'** from the server, and parse it into a list of filter
'** categories
'************************************************************
Function initCategoryList() As Void

    conn = InitCategoryFeedConnection()

    m.JSONObj 		= conn.LoadCategoryFeed(conn)
    m.CategoryNames = conn.GetCategoryNames(m.JSONObj)
	m.ContentList 	= conn.GetContentList(m.JSONObj) 

End Function



'********************************************************************
'** Return the list of content corresponding the currently selected
'** category in the filter banner.  As the user highlights a
'** category on the top of the poster screen, the list of posters
'** displayed should be refreshed to correspond to the highlighted
'** item.  This function returns the list of content for that category
'********************************************************************
Function getContentForCategory(index As Integer) As Object
    list = []
	For each item in m.ContentList
		if item.Category = index
				list.push(item)
		end if
	end for
    return list
End Function

[MSGreg]

Look for a showhomescreen function or sub in any of the .brs files within the package. I don't think there is any scoping between files. Rename one of them uniquely (as well as any calls to the one you renamed).

[mediaman]

Hi, Thanks for your reply but unfortunately I am none the wiser. Any other advise apart from coding for dummies??? Damn, never realized this was going to be so difficult. Damn. Damn. Damn.
Mediaman

[MSGreg]

Search the folder containing the manifest file and all folders underneath that one for all .brs files. Within each file, search for "showhomescreen". You should find at least two that also begin with the word "sub" or "function". One of those you already know about.

My guess is that you've combined two examples.

You have two instances of showhomescreen within your code. You can only have one. You'll have to determine if the second one is redundant or complimentary based on the desired functionality of the channel.

[mediaman]

Thank you for your help/reply. I will speak with a coding friend to seek assistance. But just to let you know, I have not edited any of the coding at any stage apart from adding my unique Brightcove player & ID number as requested and therefore I still am confused why no one before me would have received these errors outlined above. Strange!! If anyone else has any ideas then please throw them at me. I will off course come back and keep you posted. Thank you kindly for giving me help.
Regards
Mediaman

[belltown]

Try contacting the developers of the Brightcove Roku app through their web site or at opensource@brightcove.com. You didn't do anything wrong. Their channel code contains several functions defined twice. At least the following files contain duplicate functions: Main.brs and appMain.brs; HomeScreen.brs and appHomeScreen.brs; and VideoScreen.brs and appVideoScreen.brs.

It looks like when they created the .zip file containing the source code they included a set of files that should not have been included.

[mediaman]

Hi everyone.

This issue has now been resolved - and I have managed to get a .zip file onto my Roku and a great channel up and running - from my Brightcove account.

Thanks for your help in nudging me in the right direction (which was the problem).

Personally, I am not a coder naturally and have to work damn hard at it - therefore the problem with the Brightcove Roku app is actually down to the fact that you do need a competent level of coding or access to the resources.

There are a lot of files with the source directory which do have duplicated function codes within them but this is not an error but rather down to what and how you want to develop between brightcove / roku UI for additional user functionality.

The brightcove / roku app and references to it is on Github found here https://github.com/BrightcoveOS/Roku-Sample-App

The files with the 'app' prefix are duplicates and I also found another duplicated on the HttpUtils file (I removed these files with the 'app' extention and the httpUtils file - and then created my .zip once more to upload it to the Roku box (just to get me started) and it worked really well. Really well.

Opensource at Brightcove have been helpful in resolving this 'human error not technical'. Hehe.

Thanks again guys for your correct observations and suggestions.
Mediaman.