Re: TV tuner, sound etc. -- what does this mean?

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Hi Michael;

On Tue, 2009-07-28 at 17:57 +0200, Michael Schwendt wrote:
> On Tue, 28 Jul 2009 11:26:58 -0400, William wrote:

> Why do you insist on avoiding mplayer like the plague? It's available
> for Fedora at rpmfusion.org, and /dev/video1 ought to be of primary
> interest.  [Unless you want to look at mythtv instead.]
> 

Here is what I have found out so far:

1) Cold Boot + 
tvtime => great video + no sound + TV channel #33 (set by me)
]$ mplayer /dev/video1 => black & white, distorted video + great sound +
TV channel #33  - not set by me.  I have not yet loaded a TV channel
list for mplayer.
then tvtime again => black & white, distorted video + no sound + TV
channel #33

2) Restart 
tvtime => great video + no sound + TV channel #25
]$ mplayer /dev/video1 => no sound + no video+TV channel freezes
tvtime => black & white, distorted video + no sound + TV channel #33
]$ mplayer /dev/video1 => no sound + no video+ TV channel still frozen

3) Logout and back in
tvtime => black & white, distorted video + no sound + TV channel #33
]$ mplayer /dev/video1 => black & white, indistinct video + great sound
+ TV channel #33

4) Restart
tvtime => great video + no sound + TV channel #33
]$ mplayer /dev/video1 => black & white, distorted video + great sound +
TV channel #33

5) Restart
]$ mplayer /dev/video1 =>"Playing /dev/video1. ... Exiting... (End of
file)"
tvtime => black & white, distorted video + no sound + TV channel #33
]$ mplayer /dev/video1 => black & white, distorted video + great sound +
TV channel #33

It is as if one tv program was picking up (environmental ?) constant(s)
created by the other program and the only way to flush the environment
is to re-boot.
_____________________________

The site http://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-1800

suggested the mplayer command that I have been using as a basis of my
mplayer tv commands i.e. mplayer /dev/video1 -vo x11 -nobps -autosync 30
-forceidx -hardframedrop -vc ffmpeg12 -idle -menu -cache 16384
-cache-seek-min 50 -mc 0 -ni

I slowly experimented (using man mplayer) with each one of the elements
of this command.  Removing or altering one element after another made no
difference to the output.  Each trial and error gave the same results as
a simple 'mplayer /dev/video1'

_______________________________

By the way, for the first time I am getting the following error from
mplayer /dev/video1 :

...
Starting playback...
[mpeg2video @ 0xabd6c0]Missing picture start code
VDec: vo config request - 720 x 480 (preferred colorspace: Planar
YV12)         
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 720x480 => 720x540 Planar YV12 
[mpeg2video @ 0xabd6c0]Missing picture start code??% ??% ??,?% 11
0             
[mpeg2video @ 0xabd6c0]Missing picture start code
[mpeg2video @ 0xabd6c0]Missing picture start code21%  6% 158.4% 23
0            
[mpeg2video @ 0xabd6c0]Missing picture start code16%  4% 107.4% 31
0            
[mpeg2video @ 0xabd6c0]Missing picture start code
...

Previously mplayer warned me that it 
"Cannot seek backward in linear streams!
Seek failed"

-- 
Regards Bill
Fedora 11, Gnome 2.26.3
Evo.2.26.3, Emacs 22.3.1

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