[MPlayer-users] mencoder and the bt878 card

[Sascha Sommer]

Hi,

On Wednesday 31 August 2005 19:14, discord wrote:
> Hello,
>
> I seem to be having trouble using mencoder to capture video on my
> computer. I am able to watch video using tvtime. I am using the
> composite input on my card. When I look at the modules the card it looks
> like im using v4l2. I notice a msg about v4l backwards compatibility
> being broken when I try using this command from the manpage
>
> mencoder  -tv driver=v4l:width=640:height=480 tv://-o tv.avi
>
> File not found: 'frameno.avi'
> Failed to open frameno.avi
> success: format: 9  data: 0x0 - 0x0
> TV detected! ;-)
> Selected driver: v4l
>  name: Video 4 Linux input
>  author: Alex Beregszaszi
>  comment: under development
> =================================================================
>  WARNING: YOU ARE USING V4L DEMUXER WITH V4L2 DRIVERS!!!
>  As the V4L1 compatibility layer is broken, this may not work.
>  If you encounter any problems, use driver=v4l2 instead.
>  Bugreports on driver=v4l with v4l2 drivers will be ignored.
> =================================================================
> Selected device: BT878 video (ATI TV-Wonder)
>  Capabilites: capture tuner overlay clipping scales
>  Device type: 171
>  Supported sizes: 48x32 => 768x480
>  Inputs: 3
>   0: Television: tuner audio tv camera  (tuner:1, norm:ntsc)
>   1: Composite1: audio camera  (tuner:0, norm:ntsc)
>   2: S-Video: audio camera  (tuner:0, norm:ntsc)
> audio block size too low, setting to 16384!
> Using input 'Television'
> ioctl get tuner failed: Invalid argument
> Tuner isn't capable to set norm!
> Error: Cannot set norm!
> Segmentation fault
>
>
> I would like to use the Composite1 input but I do not know how to select
> it. I looked at the manual but didnt see an option to select the input.
>

Really?
                 input=<value>
                      Specify input (default: 0 (TV), see console output for 
available inputs).


Try something like
-tv 
driver=v4l2:width=640:height=480:device=/dev/video0:fps=30:norm=NTSC:input=1





Sascha