[mythtv-users] analog video camera and Mythtv?
Roger Hanson
roger at rogerhanson.com
Wed Jan 25 23:39:56 UTC 2006
Michael T. Dean wrote:
>On 01/25/2006 11:06 AM, David Watkins wrote:
>
>
>>I suggest looking to see what other /dev/video devices exist on your
>>system, and trying them in place of /dev/video0. I think one of the
>>setup pages of mythtvsetup shows you which input is on which device.
>>I'm afraid I don't know enough of the theory to suggest a more
>>scientific approach.
>>
>>
>>
>video0 is the MPEG-2 video from whichever input the card is set to use.
>You don't change inputs by changing video devices, you change with
>"ivtvctl -p" so see "ivtvctl --help"
>
>Mike
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>mythtv-users at mythtv.org
>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>
>
>
Thanks - made progress, but the recording was in black and white, not
color like the original.....weird.
I did a ivtvctl -p=4
I used dd if=/dev/video0 of=/myth/tv/myfile.mpg bs=64k
I got black/white output (was recorded in color)
ivtvctl -p=6
I used dd if=/dev/video0 of=/myth/tv/myfile.mpg bs=64k
I got black/white output (was recorded in color)
Did I do something wrong?
mythtv at pvr:~$ ivtvctl -a
ioctl IVTV_IOC_G_CODEC ok
Codec parameters
aspect : 2
audio : 0x00e9
bframes : 3
bitrate_mode: 0
bitrate : 4500000
bitrate_peak: 6000000
dnr_mode : 0
dnr_spatial : 0
dnr_temporal: 0
dnr_type : 0
framerate : 0
framespergop: 15
gop_closure : 1
pulldown : 0
stream_type : 0
ioctl VIDIOC_G_FMT ok
Type : Video Capture
Width : 480
Height : 480
ioctl VIDIOC_QUERYCAP ok
Driver name : ivtv
Card type : WinTV PVR 350
Bus info : 0000:00:10.0
Driver version: 1024
Capabilities : 0x010700F3
ioctl: VIDIOC_ENUMINPUT
Input : 0
Name : Composite 0
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 1
Name : Composite 1
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 2
Name : Composite 2
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 3
Name : Composite 3
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 4
Name : Tuner 0
Type : 0x00000001
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x0000000000003000 ( NTSC )
Status : 0
Input : 5
Name : Composite 4
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 6 <<<<<<<<-----I tried using this as the video
input # - didn't work
Name : S-Video 0
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 7
Name : S-Video 1
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 8
Name : S-Video 2
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
Input : 9
Name : S-Video 3
Type : 0x00000002
Audioset: 0x00000003
Tuner : 0x00000000
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Status : 0
ioctl VIDIOC_G_INPUT ok
Video input = 4 <<<<<<<<<<<<<------------I tried this as video input
# - didn't work
ioctl: VIDIOC_ENUMOUTPUT
Output : 0
Name : S-Video + Composite
Type : 0x00000002
Audioset: 0x00000001
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Output : 1
Name : Composite
Type : 0x00000002
Audioset: 0x00000001
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Output : 2 <<<<<<<<<<<<<<--------------I tried this as video
input # - didn't work
Name : S-Video
Type : 0x00000002
Audioset: 0x00000001
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Output : 3
Name : RGB
Type : 0x00000002
Audioset: 0x00000001
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Output : 4
Name : YUV C
Type : 0x00000002
Audioset: 0x00000001
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
Output : 5
Name : YUV V
Type : 0x00000002
Audioset: 0x00000001
Standard: 0x00000000007F3FFF ( PAL NTSC SECAM )
ioctl VIDIOC_G_OUTPUT ok
Output = 0
ioctl: VIDIOC_ENUMAUDIO
Input : 0
Name : Tuner Audio In
Input : 1
Name : Audio Line In
ioctl VIDIOC_G_AUDIO ok
Audio input = 0: Tuner Audio In
ioctl VIDIOC_G_FREQUENCY ok
Frequency = 3764
ioctl: VIDIOC_ENUMSTD
index : 0
ID : 0x0000000000003000
Name : NTSC
Frame period: 1001/30000
Frame lines : 525
index : 1
ID : 0x00000000000000FF
Name : PAL
Frame period: 1/25
Frame lines : 625
index : 2
ID : 0x00000000007F0000
Name : SECAM
Frame period: 1/25
Frame lines : 625
ioctl VIDIOC_G_STD ok
Video standard = 0x00003000
ioctl: VIDIOC_QUERYCTRL
Brightness = 127
Contrast = 63
Saturation = 63
Hue = 0
Volume = 58950
Mute = 0
mythtv at pvr:~$ dd if=/dev/video4 of=/myth/tv/myfile.mpg bs=64k
dd: opening `/dev/video4': No such device
mythtv at pvr:~$ dd if=/dev/video6 of=/myth/tv/myfile.mpg bs=64k
dd: opening `/dev/video6': No such device
mythtv at pvr:~$ su
Password:
root at pvr:/home/mythtv# dd if=/dev/video6 of=/myth/tv/myfile.mpg bs=64k
dd: opening `/dev/video6': No such device
root at pvr:/home/mythtv# dd if=/dev/video4 of=/myth/tv/myfile.mpg bs=64k
dd: opening `/dev/video4': No such device
root at pvr:/home/mythtv# dd if=/dev/video2 of=/myth/tv/myfile.mpg bs=64k
dd: opening `/dev/video2': No such device
root at pvr:/home/mythtv#
Any other ideas?
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