Error capturing first image.

Question

Good day.

I have a 8-headed video capture card on the basis of Philips SAA7134. 5 cameras are installed. All works about 1-2 weeks without censures. Nothing changed. Today there was a problem from one of camers: "Error capturing first image". Tried to restart some times motion - nothing has changed. Has then tried to change simply a source of video signal to a free admission - all works normally.

You to me could not help to solve the given problem?

Thanks.

17.05.2008 10:34:01   server2   motion   [3] 0: GREY (8 bpp gray)
17.05.2008 10:34:01   server2   motion   [3] 10: UYVY (4:2:2 packed, UYVY)
17.05.2008 10:34:01   server2   motion   [3] 11: 422P (4:2:2 planar, Y-Cb-Cr)
17.05.2008 10:34:01   server2   motion   [3] 12: YU12 (4:2:0 planar, Y-Cb-Cr)
17.05.2008 10:34:01   server2   motion   [3] 1: RGBO (15 bpp RGB, le)
17.05.2008 10:34:01   server2   motion   [3] 2: RGBQ (15 bpp RGB, be)
17.05.2008 10:34:01   server2   motion   [3] 3: RGBP (16 bpp RGB, le)
17.05.2008 10:34:01   server2   motion   [3]    "42", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3]    "42", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3]    "42", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3]    "42", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3]    "42", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3]    "42", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3] 4: RGBR (16 bpp RGB, be)
17.05.2008 10:34:01   server2   motion   [3] 5: BGR3 (24 bpp RGB, le)
17.05.2008 10:34:01   server2   motion   [3] 6: RGB3 (24 bpp RGB, be)
17.05.2008 10:34:01   server2   motion   [3] 7: BGR4 (32 bpp RGB, le)
17.05.2008 10:34:01   server2   motion   [3] 8: RGB4 (32 bpp RGB, be)
17.05.2008 10:34:01   server2   motion   [3] 9: YUYV (4:2:2 packed, YUYV)
17.05.2008 10:34:01   server2   motion   [3]    "Brightness", default 128, current 128
17.05.2008 10:34:01   server2   motion   [3] cap.bus_info: "PCI:0000:04:0a.0"
17.05.2008 10:34:01   server2   motion   [3] cap.capabilities=0x05010015
17.05.2008 10:34:01   server2   motion   [3] cap.card: "10MOONS PCI TV CAPTURE CARD"
17.05.2008 10:34:01   server2   motion   [3] cap.driver: "saa7134"
17.05.2008 10:34:01   server2   motion   [3]    "Contrast", default 68, current 68
17.05.2008 10:34:01   server2   motion   [3] found control 0x00000000, "42", range 0,0 !DISABLED!
17.05.2008 10:34:01   server2   motion   [3] found control 0x00000000, "42", range 0,0 !DISABLED!
17.05.2008 10:34:01   server2   motion   [3] found control 0x00000000, "42", range 0,0 !DISABLED!
17.05.2008 10:34:01   server2   motion   [3] found control 0x00000000, "42", range 0,0 !DISABLED!
17.05.2008 10:34:01   server2   motion   [3] found control 0x00000000, "42", range 0,0 !DISABLED!
17.05.2008 10:34:01   server2   motion   [3] found control 0x00000000, "42", range 0,0 !DISABLED!
17.05.2008 10:34:01   server2   motion   [3] found control 0x00980900, "Brightness", range 0,255 
17.05.2008 10:34:01   server2   motion   [3] found control 0x00980901, "Contrast", range 0,127 
17.05.2008 10:34:01   server2   motion   [3] found control 0x00980902, "Saturation", range 0,127 
17.05.2008 10:34:01   server2   motion   [3] found control 0x00980903, "Hue", range -128,127 
17.05.2008 10:34:01   server2   motion   [3] found control 0x08000000, "Invert", range 0,1 
17.05.2008 10:34:01   server2   motion   [3] found control 0x08000001, "y offset odd field", range 0,128 
17.05.2008 10:34:01   server2   motion   [3]    "Hue", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3] index_format 8 Test palette YU12 (640x480)
17.05.2008 10:34:01   server2   motion   [3]    "Invert", default 0, current 0
17.05.2008 10:34:01   server2   motion   [3] - READWRITE
17.05.2008 10:34:01   server2   motion   [3] Resizing pre_capture buffer to 1 items
17.05.2008 10:34:01   server2   motion   [3]    "Saturation", default 64, current 64
17.05.2008 10:34:01   server2   motion   [3] Selected palette YU12
17.05.2008 10:34:01   server2   motion   [3] - STREAMING
17.05.2008 10:34:01   server2   motion   [3] Supported palettes:
17.05.2008 10:34:01   server2   motion   [3] - TUNER
17.05.2008 10:34:01   server2   motion   [3] Using palette YU12 (640x480) bytesperlines 960 sizeimage 460800 colorspace 00000000
17.05.2008 10:34:01   server2   motion   [3] - VBI_CAPTURE
17.05.2008 10:34:01   server2   motion   [3] - VIDEO_CAPTURE
17.05.2008 10:34:01   server2   motion   [3] - VIDEO_OVERLAY
17.05.2008 10:34:01   server2   motion   [3]    "y offset odd field", default 0, current 0
.....
17.05.2008 10:34:02   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 0)
17.05.2008 10:34:04   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 1)
17.05.2008 10:34:06   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 2)
17.05.2008 10:34:08   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 3)
17.05.2008 10:34:10   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 0)
17.05.2008 10:34:12   server2   motion   [3] Error capturing first image
17.05.2008 10:34:12   server2   motion   [3] Resizing pre_capture buffer to 31 items
17.05.2008 10:34:12   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 0)
17.05.2008 10:34:12   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 1)
17.05.2008 10:34:12   server2   motion   [3] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 2)
...

Environment

Motion version:	3.2.10
ffmpeg version:	0.4.9pre1
Libraries:	ffmpeg, mysql
Server OS:	Mandriva 2008 spring powerpack

-- NickIvanov - 17 May 2008

Answer

According with V4L2 specs this problem you had it's an internal error ( signal loss , not enough bandwidth in pci bus ? ):

http://www.linuxtv.org/downloads/video4linux/API/V4L2_API/spec/r10623.htm

So your driver should react and motion will recover if thread dies .

-- AngelCarpintero - 18 May 2008

I also have a SAA7134 card and have also seen this problem. The only way to recover is to power off the computer. It isn't enought to restart, unload/reload the driver etc.

-- DagErlandsson - 18 May 2008

Not still a solution , but look also to this Bug :

http://www.lavrsen.dk/twiki/bin/view/Motion/BugReport2008x05x17x175521

-- AngelCarpintero - 26 May 2008