[MPlayer-users] Scripting and cropdetect

[Torinthiel]

On Thu, Sep 02, 2004 at 05:34:48PM +0200, JiHO wrote:
> 
> Hi all,
> 
> I previously mentionned on this list (a long time ago... thread: 
> "Encoding problems / tips needed") that I wanted to scrip the DVD 
> encoding process.
> At this stage I am trying to automate the crop detection procedure (I 
> know this is controversial and has been discutted previously, 
> nevertheless I want to automate this). My problem is with getting the 
> result of -vf cropdetect. Indeed let us put the interesting lines in a file:
>   mplayer dvd://1 -vo null -nosound -vf cropdetect -ss 300 -frames 4 
> 2>&1 | grep "crop area" > file
> 
> then if I do:
>   cat file
> I obtain:
> crop area: X: 9..716  Y: 75..501  (-vf crop=706:426:10:76)
> crop area: X: 9..716  Y: 75..501  (-vf crop=706:426:10:76)
> which seems interesting
> 
> but if I do:
>   less file
> I obtain:
> V:   0,0    1   0%  0%  0,0% 0 0 0%^MV:   0,1    2   0%  0%  0,0% 0 0 
> 0%^MV:   0
> ,2    3   0%  0%  0,0% 0 0 0%^Mcrop area: X: 9..716  Y: 75..501  (-vf 
> crop=706:4
> 26:10:76)
> V:   0,2    4   0%  0%  0,0% 0 0 0%^Mcrop area: X: 9..716  Y: 75..501 
> (-vf crop
> =706:426:10:76)
> 
> question 1/ why this difference?

Because MPlayer prints it's status line, than moves back and prits
cropdetect results. Use -quiet
Torinthiel

-- 
 Waclaw "Torinthiel" Schiller       GG#: 542916, 3073512
   torinthiel(at)megapolis(dot)pl
   gpg: B06901F1 fpr: FAA3 559F CAE9 34DE CDC8  7346 2B6E 39F2 B069 01F1
 "No classmates may be used during this examination"
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