ZoneMinder Forums

I have finally started getting this card to work by using BGR24 instead of RGB24.

but now I am getting the same image on video0 channel 0 as on channel 1 ... this is the same for 1-3 (the PV150 has a daughterboard)

zmu shows both inputs... this worked perfectly in 1.23 but as with most everything in 1.24, it is more challenging. Any idea on why the image is the same on both channels?

Regards,
Doug

zmu -d /dev/video0 -q -v
Video Device: /dev/video0
General Capabilities
Driver: bttv
Card: BT878 video (ProVideo PV150)
Bus: PCI:0000:03:08.0
Version: 0.9.18
Type: 0x5000015
Supports video capture (X)
Does not support video output
Supports frame buffer overlay
Supports VBI capture
Does not support VBI output
Does not support sliced VBI capture
Does not support sliced VBI output
Does not support video output overlay
Does not have tuner
Does not have audio in and/or out
Does not have radio
Supports read/write i/o (X)
Does not support async i/o
Supports streaming i/o (X)
Standards:
NTSC
NTSC-M
NTSC-M-JP
NTSC-M-KR
PAL
PAL-BG
PAL-H
PAL-I
PAL-DK
PAL-M
PAL-N
PAL-Nc
PAL-60
SECAM
SECAM-B
SECAM-G
SECAM-H
SECAM-DK
SECAM-L
SECAM-Lc
Formats:
8 bpp, gray (GREY)
8 bpp, dithered color (HI24)
15 bpp RGB, le (RGBO)
15 bpp RGB, be (RGBQ)
16 bpp RGB, le (RGBP)
16 bpp RGB, be (RGBR)
24 bpp RGB, le (BGR3)
32 bpp RGB, le (BGR4)
32 bpp RGB, be (RGB4)
4:2:2, packed, YUYV (YUYV)
4:2:2, packed, YUYV (YUYV)
4:2:2, packed, UYVY (UYVY)
4:2:2, planar, Y-Cb-Cr (422P)
4:2:0, planar, Y-Cb-Cr (YU12)
4:2:0, planar, Y-Cr-Cb (YV12)
4:1:1, planar, Y-Cb-Cr (411P)
4:1:0, planar, Y-Cb-Cr (YUV9)
4:1:0, planar, Y-Cr-Cb (YVU9)
Crop Capabilities
Bounds: 838 x 504
Default: 768 x 480
Current: 768 x 480
Inputs: 2
Input 0
Name: Composite0
Type: Camera
Audioset: 00000001
Standards: 0xffbfff
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock detected
Input 1
Name: Composite1
Type: Camera
Audioset: 00000001
Standards: 0xffbfff
Power on (X)
Signal detected (X)
Colour Signal detected
Horizontal Lock detected

Have a look at these two settings:
CAPTURES_PER_FRAME -

If you are using cameras attached to a video capture card which forces multiple inputs to share one capture chip, it can sometimes produce images with interlaced frames reversed resulting in poor image quality and a distinctive comb edge appearance. Increasing this setting allows you to force additional image captures before one is selected as the captured frame. This allows the capture hardware to 'settle down' and produce better quality images at the price of lesser capture rates. This option has no effect on (a) network cameras, or (b) where multiple inputs do not share a capture chip. This option addresses a similar problem to the ZM_V4L_MULTI_BUFFER option and you should normally change the value of only one of the options at a time.

ZM_V4L_MULTI_BUFFER -

Performance when using Video 4 Linux devices is usually best if multiple buffers are used allowing the next image to be captured while the previous one is being processed. If you have multiple devices on a card sharing one input that requires switching then this approach can sometimes cause frames from one source to be mixed up with frames from another. Switching this option off prevents multi buffering resulting in slower but more stable image capture. This option is ignored for non-local cameras or if only one input is present on a capture chip. This option addresses a similar problem to the ZM_CAPTURES_PER_FRAME option and you should normally change the value of only one of the options at a time.

You could also try switching to Video4Linux1 instead of 2 (or vice versa) and see if that makes any difference.

I did as blue cherry suggested and switched the capture frames to 2, that changed the images tto input 1on all cards but the images are still duplicated. Video for linux 1 shows red with the previously (1.23) working settings giving me the cant crop image error

When changing the capture frames to 2 and switching back to video for linux 1, everything worked!