[MPlayer-users] mencoder and the bt878 card
psientist at gmail.com
Wed Aug 31 19:14:28 CEST 2005
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
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!
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.
I have also tried using v4l2 driver as recomended from the message and
it will record but all i get is a fuzzy tv screen.
mencoder -oac copy tv://R8 -ovc lavc -lavcopts vcodec=mpeg2video -tv
maybe I am not selecting the composite input? Anyways maybe someone can
help me figure out how to get it to work. Tv time is working.
More information about the MPlayer-users