Hello,
there is problem patching my kernel - maybe it's too old for this
patch (2.6.33.7). Any idea?
Best regards,
Zdenek Materna
patch -Np1 --dry-run ../../../uvc_stat_jpeg_v4.diff
patching file drivers/media/video/uvc/uvc_driver.c
Hunk #1 succeeded at 47 with fuzz 1.
Hunk #2 succeeded at
Hello,
I've applied your patch. Here is result:
[ 298.25] uvc_uninit_video: Statistic for YUV 4:2:2 (YUYV) 160x120@15
[ 298.26] provided dwMaxVideoFrameBufferSize 38400, calculated bpp 16
[ 298.26] collected max_used_size 38400, calculated bpp 16
[ 298.28] provided
There is new patch. With this patch you can recalculate bandwith for
jpeg stream. See my post in list and try it:
[patch] jpeg compression hacks. Tester are welcome!!!
--
Regards,
Alexey
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Linux-uvc-devel mailing list
Hello,
output of lsusb and uvcvideo traces are attached. Output from lsusb is
from PC, because lsusb on ARM kit doesn't support verbose parameter.
Best regards,
Zdenek Materna
Dne 13. dubna 2011 9:46 Alexey Fisher bug-tr...@fisher-privat.net napsal(a):
Hallo,
On Di, 2011-04-12 at 19:52
Hallo,
Firs of all, your raw stream is working because it use smaller frame
size. Raw stream is 160x120, jpeg is 640x480. I'm sure if you will test
same size for jpeg it will work too.
Second, your cam provide correct data for raw stream (bitrate, urb
size). But also provide same settings for
Hello,
thanks for making it clear. However lowest resolution supported by
camera in JPEG mode is 640x480, so it seems that I have to use YUV
mode. There is no quirk option for compressed mode? Even in some
development tree of uvc video driver? Any path?
Regards,
Zdenek Materna
Hello again,
now I discovered, that it's possible to change module parameters even
if they are compiled in kernel... So I did:
echo 2 /sys/module/uvcvideo/parameters/quirks
And v4l example now ends like this:
VIDIOC_S_FMT error 28, No space left on device
Error No space left indicates
Sorry for another mail. It works with quirks 128 and uncompressed YUV
format. Is there any way how to use compressed MJPEG? Should I try
compile never uvcvideo driver?
Dne 12. dubna 2011 18:55 Zdeněk Materna zdenek.mate...@gmail.com napsal(a):
Hello again,
now I discovered, that it's possible
