Roku Community

cfc95 · ‎08-23-2011

Hi

When I finished developing my 1st "test" app I enabled the developer mode on roku and when my app showed up on the screen I could see the title,description,etc but I couldn't press the play button.

Here's the appMain.brs code:

' ********************************************************************
' **  Sample PlayVideo App
' **  Copyright (c) 2009 Roku Inc. All Rights Reserved.
' ********************************************************************

Sub Main(args As Dynamic)
    'initialize theme attributes like titles, logos and overhang color
    initTheme()

    if type(args) = "roAssociativeArray" and type(args.url) = "roString" then
        displayVideo(args)
    end if
    print "Type args = "; type(args)
    print "Type args.url = "; type(args.url)

    'has to live for the duration of the whole app to prevent flashing
    'back to the roku home screen.
    screenFacade = CreateObject("roPosterScreen")
    screenFacade.show()

    itemMpeg4 = {   ContentType:"episode"
               SDPosterUrl:"file://pkg:/images/DanGilbert.jpg"
               HDPosterUrl:"file://pkg:/images/DanGilbert.jpg"
               IsHD:False
               HDBranded:False
               ShortDescriptionLine1:"Dan Gilbert asks, Why are we happy?"
               ShortDescriptionLine2:""
               Description:"Harvard psychologist Dan Gilbert says our beliefs about what will make us happy are often wrong -- a premise he supports with intriguing research, and explains in his accessible and unexpectedly funny book, Stumbling on Happiness."
               Rating:"NR"
               StarRating:"80"
               Length:1280
               Categories:["Technology","Talk"]
               Title:"Dan Gilbert asks, Why are we happy?"
               }

    itemVenter = { ContentType:"episode"
               SDPosterUrl:"file://pkg:/images/CraigVenter-2008.jpg"
               HDPosterUrl:"file://pkg:/images/CraigVenter-2008.jpg"
               IsHD:False
               HDBranded:False
               ShortDescriptionLine1:"Can we create new life out of our digital universe?"
               ShortDescriptionLine2:""
               Description:"He walks the TED2008 audience through his latest research into fourth-generation fuels -- biologically created fuels with CO2 as their feedstock. His talk covers the details of creating brand-new chromosomes using digital technology, the reasons why we would want to do this, and the bioethics of synthetic life. A fascinating Q&A with TED's Chris Anderson follows."
               Rating:"NR"
               StarRating:"80"
               Length:1972
               Categories:["Technology","Talk"]
               Title:"Craig Venter asks, Can we create new life out of our digital universe?"
               }

    item = {   ContentType:"episode"
               SDPosterUrl:"file://pkg:/images/BigBuckBunny.jpg"
               HDPosterUrl:"file://pkg:/images/BigBuckBunny.jpg"
               IsHD:true
               HDBranded:true
               ShortDescriptionLine1:"Big Buck Bunny"
               ShortDescriptionLine2:""
               Description:"Big Buck Bunny is being served using a Wowza server running on Amazon EC2 cloud services. The video is transported via HLS HTTP Live Streaming. A team of small artists from the Blender community produced this open source content..."
               Rating:"NR"
               StarRating:"80"
               Length:600
               Categories:["Technology","Cartoon"]
               Title:"Big Buck Bunny"
            }

    showSpringboardScreen(itemVenter)  
   'showSpringboardScreen(itemMpeg4)  'uncomment this line and comment out the next to see the old mpeg4 example
   'showSpringboardScreen(item)       'uncomment this line to see the BigBuckBunny example
    
    'exit the app gently so that the screen doesn't flash to black
    screenFacade.showMessage("")
    sleep(25)
End Sub

'*************************************************************
'** Set the configurable theme attributes for the application
'** 
'** Configure the custom overhang and Logo attributes
'*************************************************************

Sub initTheme()

    app = CreateObject("roAppManager")
    theme = CreateObject("roAssociativeArray")

    theme.OverhangPrimaryLogoOffsetSD_X = "72"
    theme.OverhangPrimaryLogoOffsetSD_Y = "15"
    theme.OverhangSliceSD = "pkg:/images/Overhang_BackgroundSlice_SD43.png"
    theme.OverhangPrimaryLogoSD  = "pkg:/images/Logo_Overhang_SD43.png"

    theme.OverhangPrimaryLogoOffsetHD_X = "123"
    theme.OverhangPrimaryLogoOffsetHD_Y = "20"
    theme.OverhangSliceHD = "pkg:/images/Overhang_BackgroundSlice_HD.png"
    theme.OverhangPrimaryLogoHD  = "pkg:/images/Logo_Overhang_HD.png"
    
    app.SetTheme(theme)

End Sub


'*************************************************************
'** showSpringboardScreen()
'*************************************************************

Function showSpringboardScreen(item as object) As Boolean
    port = CreateObject("roMessagePort")
    screen = CreateObject("roSpringboardScreen")

    print "showSpringboardScreen"
    
    screen.SetMessagePort(port)
    screen.AllowUpdates(false)
    if item <> invalid and type(item) = "roAssociativeArray"
        screen.SetContent(item)
    endif

    screen.SetDescriptionStyle("generic") 'audio, movie, video, generic
                                        ' generic+episode=4x3,
    screen.ClearButtons()
    screen.AddButton(1,"Play")
    screen.AddButton(2,"Go Back")
    screen.SetStaticRatingEnabled(false)
    screen.AllowUpdates(true)
    screen.Show()

    downKey=3
    selectKey=6
    while true
        msg = wait(0, screen.GetMessagePort())
        if type(msg) = "roSpringboardScreenEvent"
            if msg.isScreenClosed()
                print "Screen closed"
                exit while                
            else if msg.isButtonPressed()
                    print "Button pressed: "; msg.GetIndex(); " " msg.GetData()
                    if msg.GetIndex() = 1
                         displayVideo("")
                    else if msg.GetIndex() = 2
                         return true
                    endif
            else
                print "Unknown event: "; msg.GetType(); " msg: "; msg.GetMessage()
            endif
        else 
            print "wrong type.... type=";msg.GetType(); " msg: "; msg.GetMessage()
        endif
    end while


    return true
End Function


'*************************************************************
'** displayVideo()
'*************************************************************

Function displayVideo(args As Dynamic)
    print "Displaying video: "
    p = CreateObject("roMessagePort")
    video = CreateObject("roVideoScreen")
    video.setMessagePort(p)

    'bitrates  = [0]          ' 0 = no dots, adaptive bitrate
    'bitrates  = [348]    ' <500 Kbps = 1 dot
    'bitrates  = [664]    ' <800 Kbps = 2 dots
    'bitrates  = [996]    ' <1.1Mbps  = 3 dots
    'bitrates  = [2048]    ' >=1.1Mbps = 4 dots
    bitrates  = [0]    

    ' Big Buck Bunny test stream from Wowza
    'urls = ["http://192.168.0.102:1935/vod/mp4:sample.mp4/playlist.m3u8"]
    'qualities = ["SD"]
    'streamformat = "hls"
    'title = "Big Buck Bunny"

    if type(args) = "roAssociativeArray"
        if type(args.url) = "roString" and args.url <> "" then
            urls[0] = args.url
        end if
        if type(args.StreamFormat) = "roString" and args.StreamFormat <> "" then
            StreamFormat = args.StreamFormat
        end if
        if type(args.title) = "roString" and args.title <> "" then
            title = args.title
        else 
            title = ""
        end if
        if type(args.srt) = "roString" and args.srt <> "" then
            srt = args.StreamFormat
        else 
            srt = ""
        end if
    end if
    
    videoclip = CreateObject("roAssociativeArray")
    videoclip.StreamBitrates = bitrates
    videoclip.StreamUrls = urls
    videoclip.StreamQualities = qualities
    videoclip.StreamFormat = StreamFormat
    videoclip.Title = title
    print "srt = ";srt
    if srt <> invalid and srt <> "" then
        videoclip.SubtitleUrl = srt
    end if
    
    video.SetContent(videoclip)
    video.show()

    lastSavedPos   = 0
    statusInterval = 10 'position must change by more than this number of seconds before saving

    while true
        msg = wait(0, video.GetMessagePort())
        if type(msg) = "roVideoScreenEvent"
            if msg.isScreenClosed() then 'ScreenClosed event
                print "Closing video screen"
                exit while
            else if msg.isPlaybackPosition() then
                nowpos = msg.GetIndex()
                if nowpos > 10000
                    
                end if
                if nowpos > 0
                    if abs(nowpos - lastSavedPos) > statusInterval
                        lastSavedPos = nowpos
                    end if
                end if
            else if msg.isRequestFailed()
                print "play failed: "; msg.GetMessage()
            else
                print "Unknown event: "; msg.GetType(); " msg: "; msg.GetMessage()
            endif
        end if
    end while
End Function

and here'e the application.xml code from the wowza server:

<Root>
	<Application>
		<!-- Uncomment to set application level timeout values
		<ApplicationTimeout>60000</ApplicationTimeout>
		<PingTimeout>12000</PingTimeout>
		<ValidationFrequency>8000</ValidationFrequency>
		<MaximumPendingWriteBytes>0</MaximumPendingWriteBytes>
		<MaximumSetBufferTime>60000</MaximumSetBufferTime>
		<MaximumStorageDirDepth>25</MaximumStorageDirDepth>
		-->
		<Connections>
			<AutoAccept>true</AutoAccept>
			<AllowDomains></AllowDomains>
		</Connections>
		<!--
			StorageDir path variables
			
			${com.wowza.wms.AppHome} - Application home directory
			${com.wowza.wms.ConfigHome} - Configuration home directory
			${com.wowza.wms.context.VHost} - Virtual host name
			${com.wowza.wms.context.VHostConfigHome} - Virtual host config directory
			${com.wowza.wms.context.Application} - Application name
			${com.wowza.wms.context.ApplicationInstance} - Application instance name
			
		-->
		<Streams>
			<StreamType>default</StreamType>
			<StorageDir>${com.wowza.wms.context.VHostConfigHome}/content</StorageDir>
			<KeyDir>${com.wowza.wms.context.VHostConfigHome}/keys</KeyDir>
			<!-- LiveStreamPacketizers (separate with commas): cupertinostreamingpacketizer, smoothstreamingpacketizer, sanjosestreamingpacketizer, cupertinostreamingrepeater, smoothstreamingrepeater, sanjosestreamingrepeater -->
			<LiveStreamPacketizers></LiveStreamPacketizers>			
			<!-- Properties defined here will override any properties defined in conf/Streams.xml for any streams types loaded by this application -->
			<Properties>
			</Properties>
		</Streams>
		<!-- HTTPStreamers (separate with commas): cupertinostreaming, smoothstreaming, sanjosestreaming -->
		<HTTPStreamers>cupertinostreaming,smoothstreaming,sanjosestreaming</HTTPStreamers>			
		<SharedObjects>
			<StorageDir></StorageDir>
		</SharedObjects>
		<Client>
			<IdleFrequency>-1</IdleFrequency>
			<Access>
				<StreamReadAccess>*</StreamReadAccess>
				<StreamWriteAccess>*</StreamWriteAccess>
				<StreamAudioSampleAccess></StreamAudioSampleAccess>
				<StreamVideoSampleAccess></StreamVideoSampleAccess>
				<SharedObjectReadAccess>*</SharedObjectReadAccess>
				<SharedObjectWriteAccess>*</SharedObjectWriteAccess>
			</Access>
		</Client>
		<RTP>
			<!-- RTP/Authentication/[type]Methods defined in Authentication.xml. Default setup includes; none, basic, digest -->
			<Authentication>
				<PublishMethod>digest</PublishMethod>
				<PlayMethod>none</PlayMethod>
			</Authentication>
			<!-- RTP/AVSyncMethod. Valid values are: senderreport, systemclock, rtptimecode -->
			<AVSyncMethod>senderreport</AVSyncMethod>
			<MaxRTCPWaitTime>12000</MaxRTCPWaitTime>
			<IdleFrequency>75</IdleFrequency>
			<RTSPSessionTimeout>90000</RTSPSessionTimeout>
			<RTSPMaximumPendingWriteBytes>0</RTSPMaximumPendingWriteBytes>
			<RTSPBindIpAddress></RTSPBindIpAddress>
			<RTSPConnectionIpAddress>0.0.0.0</RTSPConnectionIpAddress>
			<RTSPOriginIpAddress>127.0.0.1</RTSPOriginIpAddress>
			<IncomingDatagramPortRanges>*</IncomingDatagramPortRanges>
			<!-- Properties defined here will override any properties defined in conf/RTP.xml for any depacketizers loaded by this application -->
			<Properties>
			</Properties>
		</RTP>
		<MediaCaster>
			<!-- Properties defined here will override any properties defined in conf/MediaCasters.xml for any MediaCasters loaded by this applications -->
			<Properties>
			</Properties>
		</MediaCaster>
		<MediaReader>
			<!-- Properties defined here will override any properties defined in conf/MediaReaders.xml for any MediaReaders loaded by this applications -->
			<Properties>
			</Properties>
		</MediaReader>
		<MediaWriter>
			<!-- Properties defined here will override any properties defined in conf/MediaWriter.xml for any MediaWriter loaded by this applications -->
			<Properties>
			</Properties>
		</MediaWriter>
		<LiveStreamPacketizer>
			<!-- Properties defined here will override any properties defined in conf/LiveStreamPacketizers.xml for any LiveStreamPacketizers loaded by this applications -->
			<Properties>
			</Properties>
		</LiveStreamPacketizer>
		<HTTPStreamer>
			<!-- Properties defined here will override any properties defined in conf/HTTPStreamers.xml for any HTTPStreamer loaded by this applications -->
			<Properties>
			</Properties>
		</HTTPStreamer>
		<Repeater>
			<OriginURL></OriginURL>
			<QueryString><![CDATA[]]></QueryString>
		</Repeater> 
		<Modules>
			<Module>
				<Name>base</Name>
				<Description>Base</Description>
				<Class>com.wowza.wms.module.ModuleCore</Class>
			</Module>
			<Module>
				<Name>properties</Name>
				<Description>Properties</Description>
				<Class>com.wowza.wms.module.ModuleProperties</Class>
			</Module>
			<Module>
				<Name>logging</Name>
				<Description>Client Logging</Description>
				<Class>com.wowza.wms.module.ModuleClientLogging</Class>
			</Module>
			<Module>
				<Name>flvplayback</Name>
				<Description>FLVPlayback</Description>
				<Class>com.wowza.wms.module.ModuleFLVPlayback</Class>
			</Module> 
		</Modules>
		<!-- Properties defined here will be added to the IApplication.getProperties() and IApplicationInstance.getProperties() collections -->
		<Properties>
		</Properties>
	</Application>
</Root>

So what's the problem?

RokuChris · ‎08-23-2011

Have you looked at the debug console (section 8 of the Developer Guide)?
You aren't setting any streamURLs on your content-meta-data...

/tmp/plugin/BCBAAAsnLzv3/pkg:/source/Main.brs(198): runtime error e9: Use of uninitialized variable

198:     videoclip.StreamUrls = urls

Backtrace:
Function displayvideo(args As Untyped) As Untyped
Function showspringboardscreen(item As Object) As Boolean
Function main(args As Untyped) As Void

Local Variables:
args     &h54 String val:
global   &h07 rotINTERFACE:ifGlobal
m        &h06 bsc:roAssociativeArray, refcnt=4
p        &h16 bsc:roMessagePort, refcnt=2
video    &h16 bsc:roVideoScreen, refcnt=1
bitrates &h16 bsc:roArray, refcnt=2
urls     &h30 Untyped val:Uninitialized
streamformat &h30 Untyped val:Uninitialized
title    &h30 Untyped val:Uninitialized
srt      &h30 Untyped val:Uninitialized
videoclip &h16 bsc:roAssociativeArray, refcnt=1
lastsavedpos &h30 Untyped val:Uninitialized
statusinterval &h30 Untyped val:Uninitialized
msg      &h30 Untyped val:Uninitialized
nowpos   &h30 Untyped val:Uninitialized
qualities &h30 Untyped val:Uninitialized

cfc95 · ‎08-25-2011

There were streamURLs. I even put the original roku StreamsURLs and it still didnt work.

Roku Community

Roku Developer Program

HLS stream

Re: HLS stream

Re: HLS stream