2010-06-30 12:42:32     Capture camera frame using ADV7183B - Setup questions

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2010-06-30 12:42:32     Capture camera frame using ADV7183B - Setup questions

blue hash (UNITED STATES)

Message: 90774   

 

Hello, I was putting together a setup for capturing video frames to an SDcard. The setup will be grabbing an image from an external composite video signal.

 

There are two possible setups:

 

BF561 kit + Blackfin A-V EZ-Extender or Bluetechnix CM-BF561 + Bluetechnix BF5-xx Video Board

 

Does this look correct.? The bluetechnix does not use hardware I2C, instead does a bitbang.

 

Also concerning drivers,  if ffmpeg needed? I only need to capture a frame from incoming video, to a jpeg ,  and not a stream.

 

Thanks!

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2010-06-30 16:54:28     Capture camera frame using ADV7183B - Setupquestions

Michael Hennerich (GERMANY)

Message: 90779    BF561 doesn't feature an HW I2C peripheral - it's always bit bang I2C.

But this doesn't really matter - (bit bang can be as fast as HW I2C but it consumes more CPU time

- For these codec setup purposes it's not real a concern,

since they happen rarely, and typically stay constant once configured)

 

EZKIT should work as is without A-V EZ-Extender as well as the Bluetechnix Board with Video Board.

Since, in case I remember correctly, both use the same Video CODEC.

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2010-06-30 18:02:18     Re: Capture camera frame using ADV7183B - Setupquestions

blue hash (UNITED STATES)

Message: 90780   

 

Thanks Michael! Is there anyway you could tell me if I need to use ffmpeg or can I just use the ADV7183 driver to capture a frame.

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2010-06-30 20:14:15     Re: Capture camera frame using ADV7183B - Setupquestions

Mike Frysinger (UNITED STATES)

Message: 90781   

 

it isnt a "one or the other" situation.  you always need a driver to control the hardware, and then some userspace software to capture from it.  ffmpeg can do it, but so can any V4L software.

 

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2010-07-01 07:48:08     Re: Capture camera frame using ADV7183B - Setupquestions

blue hash (UNITED STATES)

Message: 90805   

 

Thanks!

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