Motion-JPEG decoder/encoder

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originally posted by faye@Jan 12 2007, 09:47 AM

hi,hippo

ps: i used terasic's camera module through 40pins headers.

regards

faye

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I will try to get one.

I am stilling looking at the video capture driver, at linux-2.6.x/drivers/media/video.

I didn&#39;t figure out how to write the driver yet.

Hi,hippo

Can you give me more hint or information?

Thx

Faye

I am busy with the latest uClinux-dist-20070130 release at the moment.

I had I2C driver working. I will move to video capture later.

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originally posted by hippo@Feb 6 2007, 09:21 PM

i am busy with the latest uclinux-dist-20070130 release at the moment.

i had i2c driver working. i will move to video capture later.

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ok! thank you again!

I&#39;m waiting for you!

You are a very nice man!

Regards

Faye

hi, hippo

I used DE2&#39;s camera module through 40 pins headers.

The webcam&#39;s data is RGB format.

I will transmit images form DE2 board to PC, then process images, so I need compress and decompress it.(JPEG Format)

My problem is how to transform RGB format become JPEG format.

Can you give me more hint or information?

I need your help! http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

Regards

Faye

I used DE2&#39;s camera module through 40 pins headers.

The webcam&#39;s data is RGB format.

PS: Can I use V4L to do it?

There&#39;s no way you&#39;ll be able to do this in software....not with a decent framerate, at least. There&#39;s a JPEG hardware compressor at Opencores.org. You might take a crack at converting it for use in SOPC Builder or....you could try using C2H for the DCT, at a minimum.

In any case, you&#39;ve a lot of reading to do. There&#39;s ample information on JPEG compression/de-compression on the web.

Good luck!

- slacker

Hi !

I am new hand to NiosII and uClinux.

I have the same problem with you.But the difference is I will use the Vidio In as the input.

Have you work it out?

My puzzle is how can I get the Vidios at uClinux.

I want to share this topic with you

thank you very much.

hi,slacker

Thank you very much for your reply.

Regard

Faye