NewLC - unable to get the bitmap from video captured using FrameL() - Comments

Re: unable to get the bitmap from video captured using FrameL()

SymbianJunior — Mon, 17 Sep 2007 22:47:12 +0200

Thanks, Janza, I'll try to find a way to deal with it.

Re: unable to get the bitmap from video captured using FrameL()

janza — Mon, 17 Sep 2007 08:42:02 +0200

You need to convert the video frame to bitmap yourself. There are a lot of examples in the internet on how to do YUV->RGB conversion...

Re: unable to get the bitmap from video captured using FrameL()

SymbianJunior — Mon, 17 Sep 2007 03:32:30 +0200

Handle each frame and use bitblt to print it out to the screen for each ViewFinderFrameReady callback.

Janza, I have exactly the same question as SymbianPower's original one. The video format supported on my device is EFormatYUV420SemiPlanar and I know I can use MFrameBuffer->DataL() to get the non-bitmap raw data. The device I have supports ViewFinderDirect but not ViewFinderBitmap, and I really want to use VideoCapture to implement my app. So is there a way to transfer the non-bitmap frame to a bitmap one?

Thank you.

Re: unable to get the bitmap from video captured using FrameL()

janza — Tue, 23 Jan 2007 09:42:34 +0100

View finder frames are capture continuously. New capture will start immediately when your application returns from ViewFinderFrameReady callback. You need to make sure that you are not blocking the execution in the callback.

Re: unable to get the bitmap from video captured using FrameL()

symbianpower — Mon, 22 Jan 2007 10:59:50 +0100

Hi Janza,

Thanks for reply.It works.
But i m not able to get the behaviour of viewFinderFrameReady.
It is just capturing a single frame at a time What should i do if
i want to do the continous capturing?

Thanks in Advance............

Re: unable to get the bitmap from video captured using FrameL()

janza — Tue, 09 Jan 2007 07:41:17 +0100

Instead of calling CCamera::StartVideoCapture() call CCamera::StartViewFinderBitmapsL() and you will receive bitmaps via MCameraObserver::ViewFinderFrameReady() call back.

Please refer to Symbian documentation about the available methods in Camera API:
http://www.symbian.com/Developer/techlib/v70sdocs/doc_source/reference/cpp/OnboardCameraRef/CCameraClass.html

Re: unable to get the bitmap from video captured using FrameL()

symbianpower — Mon, 08 Jan 2007 10:01:04 +0100

Hi Janza,

Can u please elaborate what u want to say so that
i can try this out.

Thanks!!!!1

Re: unable to get the bitmap from video captured using FrameL()

janza — Mon, 08 Jan 2007 08:04:31 +0100

If you need bitmap, use view finder instead of video.

unable to get the bitmap from video captured using FrameL()

symbianpower — Sun, 07 Jan 2007 12:25:01 +0100