RE: Saving YUVY image from V4L2 buffer to file
- Date: Wed, 3 Feb 2010 12:01:33 -0800
- From: "Charlie X. Liu" <charlie@xxxxxxxxxxxx>
- Subject: RE: Saving YUVY image from V4L2 buffer to file
Do most of Webcams have no RGB support? I'm not experienced on that. Does
anybody know the percentage of RGB support by Webcams?
From: Devin Heitmueller [mailto:dheitmueller@xxxxxxxxxxxxxx]
Sent: Wednesday, February 03, 2010 11:19 AM
To: Charlie X. Liu
Cc: Owen O' Hehir; video4linux-list@xxxxxxxxxx
Subject: Re: Saving YUVY image from V4L2 buffer to file
On Wed, Feb 3, 2010 at 1:57 PM, Charlie X. Liu <charlie@xxxxxxxxxxxx> wrote:
> Why don't you directly set it with: fmt.fmt.pix.pixelformat =
> V4L2_PIX_FMT_BGR24, instead of converting?
That only really works if the hardware supports providing RGB data as
opposed to YUYV (which many do not). Or, it would work if you link
against libv4l to do the conversion in userland.
Devin J. Heitmueller - Kernel Labs
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