CODEWITHSUNDEEP
javablackberryjava-me
CAMOBAP
CAMOBAP

Reputation: 5657

Blackberry: How to set video resolution before recording

I need to record video with specific resolution (as least as possible).

private void startRecording(Player player, net.rim.device.api.ui.Manager parentManager)
{
    try
    {
        if (player == null)
        {
            player = javax.microedition.media.Manager.createPlayer("capture://video?encoding=video/3gpp");
            player.addPlayerListener(this);
            player.realize();

            RecordControl recordControl = (RecordControl) player.getControl("RecordControl");
            VideoControl videoControl = (VideoControl) player.getControl("VideoControl");

            if (videoControl != null)
            {
                final Field videoField = (Field)videoControl.initDisplayMode( VideoControl.USE_GUI_PRIMITIVE, "net.rim.device.api.ui.Field" );

                try
                {
                    videoControl.setDisplaySize(1, 1);
                }catch(Exception e)
                {
                    System.out.println(e);
                }
                videoControl.setVisible(true);
                UiApplication.getUiApplication().invokeLater(new Runnable() {
                    public void run()
                    {
                        if(parentManager != null)
                        {
                            if(videoField.getIndex() == -1)
                            {
                                parentManager.insert(videoField, 1);
                            }
                        }
                    }
                });
            }
        }   

        // here i get null
        CameraControl cameraControl = (CameraControl) player.getControl("CameraControl");
        int[] resolutions = cameraControl.getSupportedVideoResolutions();
        cameraControl.setVideoResolution(resolutions.length / 2 - 1);   

        recordControl.setRecordLocation("test.3gp");\
        recordControl.startRecord();    

        player.start();

    }catch(Exception e)
    {
        System.out.println(e);
    }
}

but for some reason (CameraControl) player.getControl("CameraControl"); return null

How can i specify resolution for recording video?

P.S. Blackberry OS 5.0, Torch 9800

Update:

In case when I using

capture://video?encoding=video/3gpp&mode=mms

or

capture://video?encoding=video/3gpp&width=240&height=180&video_codec=MPEG-4&audio_codec=AMR

I get event=error and eventData=2 in PlayerListener.playerUpdate(Player player, String event, Object eventData) method

Description for eventData=2 I found here:

Invalid parameter: a parameter was specified with an invalid value.

Can someone explain me why my params incorrect?

Upvotes: 4

Views: 281

Answers (2)

alishaik786
alishaik786

Reputation: 3726

This below link may helps you:

Video Recording in Blackberry

Upvotes: 1

Michael Donohue
Michael Donohue

Reputation: 11876

The user is able to modify the recording settings - on higher end phones there are three different quality levels, but the recorder defaults to the highest quality. I've tried to set it to the medium quality level - 640x480, but haven't been able to find a way to do that.

Since you are asking for the lowest quality, you might have some luck. You can specify "MMS" quality, and the video recording will be very low quality, which is what you want.

I referenced "RIM blackberry Record 3GP video" which says that adding &mode=mms to the player string will give you MMS quality. Unfortunately, it also appears to limit the duration to 30 seconds.

Upvotes: 2

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