Roku Developer Program

[jkard]

Hey friends,

Hoping I'm doing something stupid on this. I have a test video hosted at Akamai, and am trying to get it to play via a roVideoScreen, but it gets "stuck" about 1/3 way when trying to load. It's a MP4 file and loads just fine in a browser.

Code

Function ShowVideoScreen(TitleArray As Object) 

    'Print to Debugger
    Print("Initalize Video Screen - [ scr_VideoScreen.ShowVideoScreen() ]")

    'Create Video Screen
    video = CreateObject("roVideoScreen")

    'Create Port
    port = CreateObject("roMessagePort")

    'Set The Port
    video.SetMessagePort(port)

    'Associative Array Of Video Values
    aa_Video = CreateObject("roAssociativeArray")

    'Set Video Attributes
    aa_Video.Stream = {url:TitleArray.Lookup("streamURL")}
    aa_Video.IsHD = true
    aa_Video.Qualities = "HD"
    aa_Video.HDBranded = true
    aa_Video.StreamFormat = "mp4"
    aa_Video.Title = TitleArray.Lookup("Title")

    'Set Content To The Video Player
    video.SetContent(aa_Video)

    'Load And Show The Video
    video.Show()

    'Set Listener
    while true

        'Set Msg From Video
        msg = Wait(0, video.GetMessagePort()) 

        'Determine User Action
        if type(msg) = "roVideoScreenEvent"
            if msg.isScreenClosed()

                'User Exited
                exit while

            end if
        end if

    end while

End Function

Image:


Any thoughts on what is going on or why it won't fully load?

Thanks
Jay

PS - Here is the link to the raw video http://assets.c2mx.com/95786e665c4944f5 ... 5B4600.mp4

[jbrave]

There's nothing wrong with that file as far as I can see, tossed it into an existing project and it plays on my Roku.

Might want to set the bit rate in your aa_video.bitrate to the bitrate or to 0

also, it should be video.StreamQualities not video.Qualities, I think. Also, that is a very high bitrate, might want to go for something a bit lower, keeps rebuffering every few minutes on my 6mbit connection.

- Joel

[jkard]

Thanks Joel,

I'll adjust those settings, I kind of Frankensteined my code together from several examples, so I'm sure I missed something.

I took a look at the encode, and am seeing the same thing, I had not noticed that. I'll have our team re-encode to a proper bitrate and see if that helps.

Thanks a ton for the advice
Jay

[jbrave]

Nothing wrong with the bitrate per se, you might want to have a few bitrates of the same video, store in an array so roku can auto-switch.

- Joel

[renojim]

The video plays for me, but the audio is out of sync. I also see a lot of combing artifacts in the video.

-JT

[RokuChris]

This isn't the answer to your problem, but worth pointing out. There are two different ways to define your streams and you're sort of mixing them together. There's the stream(s) attribute approach and an older parallel arrays approach. When using the stream attribute, quality should be specified as a boolean attribute of the stream AA, not in a streamQualities array of strings. This is described in more detail in section 3.3 of the Component Reference.

Combining a stream AA containing a URL with a streamQualities array of strings, won't break anything necessarily, but your streamQualities will probably be ignored. What you really want to do is this:

aa_Video.Stream = {
  url: TitleArray.Lookup("streamURL")
  quality: true
}