[jini_1]

Hi
When i try to capture image in N80 using videoControl.getSnapShot()
( byte[] snap = videoControl.getSnapshot("encoding=jpeg");) sometimes i'm getting an exception "javax.microedition.media.MediaException: Symbian OS error: -2". How can i solve this.
jini

[hartti]

http://www.newlc.com/Symbian-OS-Error-Codes.html
KErrGeneral -2 General (unspecified) error

Sometimes, but not always?
Are you taking snapshots quickly after one another? It might be that the system is not ready for a new snapshot. However this is only guesswork - too little details

Hartti

[jini_1]

hi
thanks for the reply. I'm getting that symbian error -2 when i'm taking snap shots quickly one after another. How can i check in my app that the phone is ready for taking snap shot. Only in N80 i'm facing this problem. Other phones like N91,E70,N72...are working fine with the same app.
jini

[peterblazejewicz]

hi jini,
can you handle that error (checking error message for details) and just skip "current frame" snapshot? that way you will have some frames skipped (due to hardware limitations as it seems) simply,

regards,
peter

[jini_1]

hi peter
what do you mean by skipping current frame? i could catch that error. What should i do in catch block for this error?
jini

[peterblazejewicz]

hi jini,

you're taking snapshots as repetitive task,
So I woudl try to handle error, skip current task using previusly succesfully captured image for current frame (or pure white/pure black image), reschedule (or wait/sleep depending on thread design), try to take next capture, etc. If it fails e.g. for five subsequent execution I would abort entire task , remove last five "fake" images from queue and show notice to user.
just an idea for safe fallback, not solution, all depends on your application,
regards,
Peter

[jini_1]

hi

Could you please explain it in detail. Or can you give some sample source code for this?

jini

[peterblazejewicz]

hi,
i'd probably try:

void aRepeatableMethodRunFromScheduledThread
try
    capture image data from camera (player/control)
    save created image is some way
catch
    // check for message from system or instance of exception
    // use multiple catch and/or read details from error message
    increase number of failed task
    // optionally
    save previously captured image as current one
    //
    if number of failed tasks is greater then MAX_TASK_TO_FAIL
        cancel scheduled task completly
    end if
finally
    increase total counter of repeated tasks
    release resources
end of try

just by the way: if that error occurs are you able to acquire VideoControl from player? and to read any of its properties?

regards,
Peter

[zhs_bravo]

I am trying to capture image on Nokia 6131 NFC. It supports JPEG Encoding. I am capturing image as:

byte[] raw = this.vc.getSnapshot("encoding=jpeg");

and I get MediaException and it says that requested format does not support.

This code works fine on Nokia N91

what could be the problem?

[hartti]

The Series 40 implementation supports the locator capture://image.
Are you using this?

Hartti

[zhs_bravo]

Yes, that was the problem, I fixed it

Thanks anyways!

[tdingu]

hey hartti ,
i am using nokia 6650 mobile , i have a program that captures image but its not saving in mobile devise . How to save image in mobile device . can u pls help me.

[hartti]

See this code
http://wiki.forum.nokia.com/index.ph...ile_in_Java_ME

Hartti

[tdingu]

hey hartti,
i could not understand much ...could u please give me some other example ...

[hartti]

tdingu, please do not post the same question many times on these boards. I will remove the duplicates (I already removed one).

After the snapshot, you have the image data in your MIDlet.
The code sample I linked to, contains a method to save that data on the phone's memory. Combining this method in your MIDlet should be quite straightforward. Please check it again.
You could also check this article
http://developers.sun.com/mobility/a...ion/index.html

Hartti