On Tue, 5 Aug 2003, Ronald Bultje wrote:
>> Then some cameras supported by qc-usb can deliver MJPEG compressed frames
>> and I have used
>> #define VIDEO_PALETTE_MJPEG (('q'<<8) | 2) /* Grab video in compressed MJPEG
>> format */
>It's likely RGB JFIF/JPEG, isn't it? MJPEG is supposed to be YUY2
No. Looks like it's in 4:2:2 packed format (YUY2, I guess). I didn't write
the decompression code (just ported it to run in kernel, ahem, it's from
mpeg2dec by Aaron Holtzman), so I'm only 99% sure.
The format is used by QuickCam Web and LEGO cam.
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