Luc Saillard wrote:
>
>>Also, does anyone know how high the compression factor of the built-in
>>algorithm is?
>
>
> Just play with resolution, and compression factor, and check your kernel log.
> I print the size of 4 lines. Just multiply by your number of lines and you
> have the size of the buffer.
>
> Luc
Hi all,
I played around with capture.c a bit and determined the buffer sizes
used with various compression settings. In case someone is also
interested in this, here is what I found for my Philips PWC840:
Image Size Compression Bytes used
Setting
160x120 YUV420P 28800
0 28808
1 18908
2 18908
3 18908
320x240 YUV420P 1152000
0 76688
1 76688
2 44168
3 28808
640x480 YUV420P 460800
0 94568
1 94568
2 76808
3 58568
cheers,
Tim
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