[bornet]

Hello all,

for our internal needs, we have developped a video recording application running on some N93i. This is done in Python, thanks to Python for S60 platform.

Due to some restrictions, we have modified the Python for S60 source code to be able to:

• select the wanted resolution, frame rate and bitrate,
• mirror the image before displaying it.

(see my previous posts on the subject).

Both functions seems to be working as expected, even if the mirror hack is a quick and dirty hack which I think will work only on our specific configuration.

I will post the changes we have done for changing the resolution, frame rate and bitrate as soon as everything will be working correctly.

All seems to be working correctly. But some time, we have a "big" freeze. The phone is no more responding, and we need to reboot it. As far as I have see, it's occuring at the end of our recording, where I do mainly:

    camera.stop_record ()
    e32.file_copy (internal_file, external_file)
    os.unlink (internal_file)

where internal_file is the file recorded, in c:/videos, and external_file is a file on the external flash, in e:/videos. (recording directly on the external flash give us some freezes in the recording).

As I'm writing this email, I'm thinking it's maybe the os.unlink() which is make too fast, before the stop_record() is really finished. Could this be the possible phone freeze reason ?

As other users some stability problems with the Python for S60 ?

Thanks in advance for any help on this point.

Have a nice day.

[croozeus]

Hi bornet,

Originally Posted by bornet

As I'm writing this email, I'm thinking it's maybe the os.unlink() which is make too fast, before the stop_record() is really finished. Could this be the possible phone freeze reason ?

If you feel the stop_record() is really not finished before you call the unlink function try having a delay of a second or two before the os.unlink(internal_file) function.

Btw, does this freezing happen every time ?

Does it happen with short recordings too ?

If the recording is too big, then generally it would take time for the file to be copied.

Just try the following code: having delay between the statements,

Obviously, you can remove the unnecessary delay with trial and error methods.

    camera.stop_record ()
    e32.ao_sleep(1)
    e32.file_copy (internal_file, external_file)
    e32.ao_sleep(1)
    os.unlink (internal_file)

Hope that helps,

Best Regards,
Croozeus

[arturotena]

Originally Posted by croozeus

If you feel the stop_record() is really not finished before you call the unlink function...

How could be possible that could stop_record() could not finish before returning?

I ask because I have a problem with another module, and I suspect some timing problems.

Arturo Tena
pys60 brother

[croozeus]

Originally Posted by arturotena

How could be possible that could stop_record() could not finish before returning?

Honestly speaking, I do not believe that there is a problem with the stop or the unlink statement. I just believe that your recording becomes to large to be copied instantly and thus your phone freezes.

Best Regards,
Croozeus

[bornet]

hello,

Originally Posted by croozeus

Honestly speaking, I do not believe that there is a problem with the stop or the unlink statement. I just believe that your recording becomes to large to be copied instantly and thus your phone freezes.

It also freeze with small files. And files are in general below 30 seconds. And when the phone freeze, I can wait forever, it doesn't come back to work. I can even not switch to another program.

I will try with the sleep to see if it's helping.

Thanks all for your answers.