* v4l-utils-0.8.3 and KVDR
@ 2011-02-19 23:48 Mike Booth
2011-02-20 8:14 ` Hans de Goede
0 siblings, 1 reply; 4+ messages in thread
From: Mike Booth @ 2011-02-19 23:48 UTC (permalink / raw)
To: linux-media
My understanding of the "wrappers"contained in this library is that v4l
applications should work with kernels from 2.6.36 onwards if the compat.so is
preloaded.
I use KVDR for watching and controlling VDR on my TV.
Xine and Xineliboutput or not options as they don't provide TV out and TV out
fronm the video card is also not an option because of where things are in the
house.
KVDR fails with
Xv-VIDIOCGCAP: Invalid argument
Xv-VIDIOCGMBUF: Invalid argument
works perfectly fine on linux-2.6.35
Anyone have any ideas
Mike
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: v4l-utils-0.8.3 and KVDR
2011-02-19 23:48 Mike Booth
@ 2011-02-20 8:14 ` Hans de Goede
0 siblings, 0 replies; 4+ messages in thread
From: Hans de Goede @ 2011-02-20 8:14 UTC (permalink / raw)
To: Mike Booth; +Cc: linux-media
Hi,
On 02/20/2011 12:48 AM, Mike Booth wrote:
> My understanding of the "wrappers"contained in this library is that v4l
> applications should work with kernels from 2.6.36 onwards if the compat.so is
> preloaded.
>
> I use KVDR for watching and controlling VDR on my TV.
>
> Xine and Xineliboutput or not options as they don't provide TV out and TV out
> fronm the video card is also not an option because of where things are in the
> house.
>
> KVDR fails with
>
>
> Xv-VIDIOCGCAP: Invalid argument
> Xv-VIDIOCGMBUF: Invalid argument
>
> works perfectly fine on linux-2.6.35
>
>
> Anyone have any ideas
First of all make sure you load kdvr with the appropriote LD_PRELOAD, ie:
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so kvdr
If that does not help, do the following before launching kvdr:
export LIBV4L1_LOG_FILENAME=/tmp/log
So the total sequence of commands becomes:
export LIBV4L1_LOG_FILENAME=/tmp/log
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so kvdr
Then do what ever you want to do and fails, and send another mail
with /tmp/log attached.
Regards,
Hans
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: v4l-utils-0.8.3 and KVDR
@ 2011-02-22 9:03 Mike Booth
2011-02-22 10:46 ` Hans de Goede
0 siblings, 1 reply; 4+ messages in thread
From: Mike Booth @ 2011-02-22 9:03 UTC (permalink / raw)
To: linux-media
KVDR has a number of different parameters including
-x force xv-mode on startup and disable overlay-mod
-d dont switch modeline during xv
with kernel 2.6.35 I run KVDR with -x as I have an NVIDIA graphics. Running
on 2.6.38 KVDR -x doesn't produce any log. The display appears and immediately
disappears although there is a process running.
With KVDR -d I get a display window but no picture but the attached log is
produced.
I hope this helps
Mike
libv4l2: open: 4
request == VIDIOC_G_FMT
pixelformat: BGR3 384x288
field: 0 bytesperline: 0 imagesize331776
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 0, description: RGB-8 (3-3-2)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGB1 48x32
field: 3 bytesperline: 48 imagesize1536
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGB1 768x288
field: 3 bytesperline: 768 imagesize221184
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 1, description: RGB-16 (5/B-6/G-5/R)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGBP 48x32
field: 3 bytesperline: 768 imagesize24576
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGBP 768x288
field: 3 bytesperline: 1536 imagesize442368
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 2, description: RGB-24 (B-G-R)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: BGR3 48x32
field: 3 bytesperline: 1536 imagesize49152
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: BGR3 768x288
field: 3 bytesperline: 2304 imagesize663552
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 3, description: RGB-32 (B-G-R)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: BGR4 48x32
field: 3 bytesperline: 2304 imagesize73728
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: BGR4 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 4, description: RGB-32 (R-G-B)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGB4 48x32
field: 3 bytesperline: 3072 imagesize98304
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGB4 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 5, description: Greyscale-8
result == 0
request == VIDIOC_TRY_FMT
pixelformat: GREY 48x32
field: 3 bytesperline: 3072 imagesize98304
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: GREY 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 6, description: YUV 4:2:2 planar (Y-Cb-Cr)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: 422P 48x32
field: 3 bytesperline: 3072 imagesize98304
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: 422P 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 7, description: YVU 4:2:0 planar (Y-Cb-Cr)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: YV12 48x32
field: 3 bytesperline: 3072 imagesize98304
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: YV12 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 8, description: YUV 4:2:0 planar (Y-Cb-Cr)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: YU12 48x32
field: 3 bytesperline: 3072 imagesize98304
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: YU12 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 9, description: YUV 4:2:2 (U-Y-V-Y)
result == 0
request == VIDIOC_TRY_FMT
pixelformat: UYVY 48x32
field: 3 bytesperline: 3072 imagesize98304
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: UYVY 768x288
field: 3 bytesperline: 3072 imagesize884736
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 10, description: RGB3
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGB3 48x32
field: 3 bytesperline: 144 imagesize4608
colorspace: 0, priv: 0
result == 0
request == VIDIOC_TRY_FMT
pixelformat: RGB3 768x288
field: 3 bytesperline: 2304 imagesize663552
colorspace: 0, priv: 0
result == 0
request == VIDIOC_ENUM_FMT
index: 11, description:
result == -1 (Invalid argument)
request == VIDIOC_ENUMINPUT
result == 0
request == VIDIOC_ENUMSTD
result == 0
libv4l1: open: 4
request == VIDIOC_QUERYCAP
result == 0
request == VIDIOC_G_FBUF
result == 0
request == VIDIOC_S_FBUF
result == 0
libv4l2: close: 4
libv4l1: close: 4
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: v4l-utils-0.8.3 and KVDR
2011-02-22 9:03 v4l-utils-0.8.3 and KVDR Mike Booth
@ 2011-02-22 10:46 ` Hans de Goede
0 siblings, 0 replies; 4+ messages in thread
From: Hans de Goede @ 2011-02-22 10:46 UTC (permalink / raw)
To: Mike Booth; +Cc: linux-media
Hi,
On 02/22/2011 10:03 AM, Mike Booth wrote:
> KVDR has a number of different parameters including
>
> -x force xv-mode on startup and disable overlay-mod
>
> -d dont switch modeline during xv
> with kernel 2.6.35 I run KVDR with -x as I have an NVIDIA graphics. Running
> on 2.6.38 KVDR -x doesn't produce any log. The display appears and immediately
> disappears although there is a process running.
>
So with 2.6.35 and v4l-utils-0.8.3 things work ? Then this is not a libv4l
problem, as libv4l will no longer use the kernels v4l1 compat independent of
the kernels version.
Also in the log I see nothing indicating this is a v4l1 app (I'm not familiar
with kvdr), so I think something else may have changed in the new
kernel causing your issue.
Regards,
Hans
^ permalink raw reply [flat|nested] 4+ messages in thread
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