Difference between revisions of "V4L TV Viewing"

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m (Added some common commands)
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:* xawtv -remote -noxv -c /dev/video0 -vbidev /dev/vbi0
 
:* xawtv -remote -noxv -c /dev/video0 -vbidev /dev/vbi0
  
3. Test overlay mode (capture card controls display -- easy on CPU)
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3. Test overlay mode (capture card controls display -- easy on CPU)
  
 
:* xawtv -noxv -capture overlay
 
:* xawtv -noxv -capture overlay
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:* xawtv -xvtv_overlay off -capture overlay
 
:* xawtv -xvtv_overlay off -capture overlay
  
4. Test grabdisplay mode (application controls display -- required for deinterlacing and other effects)
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4. Test grabdisplay mode (application controls display -- required for deinterlacing and other effects)
  
 
:* xawtv -noxv -capture grabdisplay
 
:* xawtv -noxv -capture grabdisplay
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:* xawtv -xvtv_overlay on -capture grabdisplay
 
:* xawtv -xvtv_overlay on -capture grabdisplay
 
:* xawtv -xvtv_overlay off -capture grabdisplay
 
:* xawtv -xvtv_overlay off -capture grabdisplay
 +
 +
5. Test streamer
 +
 +
:* streamer -i "S-Video Input"

Revision as of 21:47, 4 May 2005

There is a large number of applications for watching tv; here are a few:

Some users report kaffeine can work even when the others don't.

Common configuration and control commands

1. Control the TV card

  • v4lctl -c /dev/video1 list
  • v4lctl setnorm ntsc-m
  • v4lctl setfreqtab us-cable
  • v4lctl setfreqtab us-bcast
  • v4lctl setchannel 3
  • v4lctl volume mute off
  • v4lctl volume 100
  • v4lctl audio stereo
  • v4lctl -c /dev/video0 setattr 'chroma agc' on (bttv only)
  • v4lctl -c /dev/video0 hue "100%" (or "0%" -- same thing)
  • v4lctl -c /dev/video1 bright "50%"
  • v4lctl -c /dev/video2 contrast "45%"
  • v4lctl -c /dev/video0 color "50%"

2. Test the video

  • xawtv -hwscan
  • xawtv -remote -noxv -c /dev/video0 -vbidev /dev/vbi0

3. Test overlay mode (capture card controls display -- easy on CPU)

  • xawtv -noxv -capture overlay
  • xawtv -v4l1 -capture overlay
  • xawtv -xvtv -capture overlay
  • xawtv -xvtv_overlay on -capture overlay
  • xawtv -xvtv_overlay off -capture overlay

4. Test grabdisplay mode (application controls display -- required for deinterlacing and other effects)

  • xawtv -noxv -capture grabdisplay
  • xawtv -v4l1 -capture grabdisplay
  • xawtv -xvtv -capture grabdisplay
  • xawtv -xvtv_overlay on -capture grabdisplay
  • xawtv -xvtv_overlay off -capture grabdisplay

5. Test streamer

  • streamer -i "S-Video Input"