Cascades Development

[lew]

Hi, i'm trying to get a MediaPlayer to work playing a video but i'm hitting some path issues (maybe???):

To get started, i simply modified the sample 'filepicker' app to get the path of the video file. Once i have the path, i set it to the sourceUrl of the MediaPlayer and call the play() function but i get the following error:

Oct 11 18:42:37.830 com.example.bb10samples.pickers.filepicker.testDev__filepicker2.35016910.0 qt-msg 0 START 1 MediaPlayerPrivate::
lastError 
Oct 11 18:42:37.830 com.example.bb10samples.pickers.filepicker.testDev__filepicker2.35016910.0 qt-msg 0 => END 1 ( 0 ms): 
Oct 11 18:42:37.830 com.example.bb10samples.pickers.filepicker.testDev__filepicker2.35016910.0 qt-msg 0 MediaPlayer::prepare: Error 
attaching input source. url=QUrl("file:///accounts/1000/shared/camera/VID_00000001.mp4") , error= SourceUnavailable 
Oct 11 18:42:37.830 com.example.bb10samples.pickers.filepicker.testDev__filepicker2.35016910.0 qt-msg 0 => END 1 ( 13 ms): 
Oct 11 18:42:37.830 com.example.bb10samples.pickers.filepicker.testDev__filepicker2.35016910.0 qt-msg 0 MediaPlayer::play: Unable to
prepare the player
Oct 11 18:42:37.830 com.example.bb10samples.pickers.filepicker.testDev__filepicker2.35016910.0 qt-msg 0 => END 1 ( 13 ms):

Here's my MediaPlayer config:

MediaPlayer {
            id: myPlayer
            // The file to play.
            sourceUrl: "/path/to/media.mp4"       
      
            // Use the device's primary display to
            // show the video.
            videoOutput: VideoOutput.PrimaryDisplay
             
            // The ID of the ForeignWindow control to
            // use as the rendering surface.
            windowId: videoControl.windowId              
        }

 Here's the code to ForeignWindowControl:

ForeignWindowControl {
            id: videoControl
            windowId: "myVideoSurface"
            updatedProperties: 
                WindowProperty.Size | WindowProperty.Position | WindowProperty.Visible
            visible: boundToWindow
            preferredWidth: 1280
            preferredHeight: 768
        }

 And the added Button to play the selected video file:

// The 'Play Video' button
            Button {
                horizontalAlignment: HorizontalAlignment.Center
                topMargin: 100

                text: qsTr ("Play Video")
                onClicked: {
                    myPlayer.sourceUrl = picker.selectedFile;
                    myPlayer.play()
                }
            }

Anyone got an idea as to what is the issue?

Thanks,

[peter9477 · Accepted solution]

Are you specifying the "access_shared" permission in your bar-descriptor.xml file? Without that, your app cannot read from, write to, or otherwise access files in the shared/ folders.

See https://developer.blackberry.com/cascades/documentation/device_platform/filesystem/ and https://developer.blackberry.com/native/beta/documentation/com.qnx.doc.native_sdk.devguide/com.qnx.d...

[lew]

Thanks Peter, that fixed it.  I was pretty sure the docs said that by default we have read access to those shared folders....guess i must have misread or this changed at some point

[StevenKader]

Lew, I am tring the same thing and it is working except I don't see the first frame of the video before I hit Play.  Is that as expected or is there something I should do?  Thanks.