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coltonoscopy
Visitor

No Caption Tracks Available 5.3

Hey all!

Recently, we've noticed that our Roku channel's caption tracks are no longer showing up when we hit the * menu. At first, I read the following and thought that it was because we were using SRTs, which sounded like they had been superseded past 3.1:

http://sdkdocs.roku.com/plugins/viewsou ... Id=3114451

Therefore, we converted one of our SRTs to TTML and updated the feed to test, but the caption track for that video isn't being detected either. I also made sure to set Closed Captions to "On" instead of "Off" or "Instant Replay". Here is a sample of what our XML looks like:


<item sdImg="http://cdn.cs50.net/2013/fall/shorts/hash_tables/hash_tables.png" hdImg="http://cdn.cs50.net/2013/fall/shorts/hash_tables/hash_tables.png">
<title>Hash Tables</title>
<contentId>http://cdn.cs50.net/2013/fall/shorts/hash_tables/hash_tables-720p.mp4</contentId>
<subtitleUrl>http://cdn.cs50.net/2013/fall/shorts/hash_tables/lang/en/hash_tables.ttml</subtitleUrl>
<contentType>Talk</contentType>
<contentQuality>HD</contentQuality>
<media>
<streamFormat>mp4</streamFormat>
<streamQuality>HD</streamQuality>
<streamUrl>http://cdn.cs50.net/2013/fall/shorts/hash_tables/hash_tables-720p.mp4</streamUrl>
</media>
<media>
<streamFormat>mp4</streamFormat>
<streamQuality>SD</streamQuality>
<streamUrl>http://cdn.cs50.net/2013/fall/shorts/hash_tables/hash_tables-360p.mp4</streamUrl>
</media>
<synopsis></synopsis>
<runtime>461</runtime>
</item>


We're confused as to where we should venture next, as subtitles have worked in the past! We appreciate your help very much.

Colton
0 Kudos
5 REPLIES 5
RokuJoel
Binge Watcher

Re: No Caption Tracks Available 5.3

On firmware newer than 3.1 are you setting videoScreen.ShowSubtitle(true)?

Details on how our captions *should* be working on 5.3 and higher firmware are here:
http://sdkdocs.roku.com/display/sdkdoc/ ... on+Support

There were definitely some caption related bugs in 5.3, hopefully they will all be resolved in the final release of 5.4.

Also, for roVideoPlayer, we have a new roCaptionRenderer component:
http://sdkdocs.roku.com/display/sdkdoc/ ... onRenderer

Also, not for 3.1, so make sure you check firmware version before calling any of these methods.

- Joel
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coltonoscopy
Visitor

Re: No Caption Tracks Available 5.3

Hey RokuJoel,

Thanks for the reply! I tried setting video.ShowSubtitle(true), but that didn't work; however, I noticed your last point about the roCaptionRenderer(). Does this mean that I will be unable to render subtitles without including that component in the source code? i.e., Here's what my videoScreen code currently looks like:


Function showVideoScreen(episode As Object)

if type(episode) <> "roAssociativeArray" then
print "invalid data passed to showVideoScreen"
return -1
endif

port = CreateObject("roMessagePort")
screen = CreateObject("roVideoScreen")
screen.SetMessagePort(port)

screen.SetPositionNotificationPeriod(30)
screen.SetContent(episode)
screen.ShowSubtitle(true)
screen.Show()

'Uncomment his line to dump the contents of the episode to be played
'PrintAA(episode)

while true
msg = wait(0, port)

if type(msg) = "roVideoScreenEvent" then
print "showHomeScreen | msg = "; msg.getMessage() " | index = "; msg.GetIndex()
if msg.isfullresult()
print "Video Completed Playback Normally"
RegDelete(episode.ContentId)
print "deleted bookmark for playback position"
else if msg.isScreenClosed()
print "Screen closed"
exit while
elseif msg.isRequestFailed()
print "Video request failure: "; msg.GetIndex(); " " msg.GetData()
elseif msg.isStatusMessage()
print "Video status: "; msg.GetIndex(); " " msg.GetData()
elseif msg.isButtonPressed()
print "Button pressed: "; msg.GetIndex(); " " msg.GetData()
elseif msg.isPlaybackPosition() then
nowpos = msg.GetIndex()
RegWrite(episode.ContentId, nowpos.toStr())
else
print "Unexpected event type: "; msg.GetType()
end if
else
print "Unexpected message class: "; type(msg)
end if
end while

End Function
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RokuJoel
Binge Watcher

Re: No Caption Tracks Available 5.3

roCaptionRenderer is for use with roScreen and roVideoPlayer, for roVideoScreen, you shouldn't need to use that. I believe what you are seeing is a bug in 5.3, as I said should be resolved soon when 5.4 is released. There is a patch we can distribute to your users in the mean time if they are complaining, you need to email us a list of users serial numbers (from Settings, About) and we can allocate the patch to those devices.

- Joel
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coltonoscopy
Visitor

Re: No Caption Tracks Available 5.3

Hey Joel,

Okay, I see... thank you very much for your information! I will wait until Version 5.4 comes out and test to see if things are working properly by then.

Best,
Colton
0 Kudos
adrianc1982
Visitor

Re: No Caption Tracks Available 5.3

"RokuJoel" wrote:
roCaptionRenderer is for use with roScreen and roVideoPlayer, for roVideoScreen


i cant get my events to show up with image canvas could you help?

	
port = CreateObject("roMessagePort")
canvas = CreateObject("roImageCanvas")

canvas.SetMessagePort(port)
canvas.SetLayer(0, { color: "#00000000", CompositionMode: "Source" })
canvas.SetRequireAllImagesToDraw(true)
canvas.SetLayer(1, canvasItems)
canvas.SetLayer(2, canvasItems2)

captions = m.player.GetCaptionRenderer()
captions.SetScreen(canvas)
captions.SetMode(1)
captions.SetMessagePort(port)
captions.ShowSubtitle(true)



nothing shows up on if type(msg) = "roCaptionRendererEvent"

only videoplayer events and imagecanvas events, any ideas?
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