[MPlayer-users] [BUG] when swsscaling to not full screen width the picture is skewed

Arpi arpi at thot.banki.hu
Thu Oct 10 03:21:02 CEST 2002


Hi,

should be fixed now (CVS)

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
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> Hi!
> Unfortunatelly it doesn't matter in this case. Same happens with 318, for 
> both my movies (divx avi, mpeg). When I looked at the source, it seemed to
> me fbdev is doing the right think, but it gets an image from the filter that 
> has padding bytes after every line, to make a line a fixed length (640 
> bytes).  This is only imho, and pure speculation, I haven't fixed it of 
> course ;)
> 
> best regards
> Denes
> 
> 2002. október  9. 21:07 dátummal Arpi ezekkel a bölcs gondolatokkal 
> ajándékozott meg:
> $$$ [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> $$$ Hi,
> $$$
> $$$ you should not scale YUV image sto odd width/height..
> $$$ as U,V are for 2x2 pixel blocks
> $$$
> $$$ > [Automatic answer: RTFM (read DOCS, FAQ), also read
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> $$$ > Hi!
> $$$ >
> $$$ > The commandline I use:
> $$$ > mplayer -framedrop -xy 319 -vop scale=319:0 -sws 0 dancemonkeyboy.mpg
> $$$ >
> $$$ > This is on a sharp zaurus (strongarm, 320x240 16bit framebuffer).
> $$$ >
> $$$ > The picture is skewed, that is, the first line of the picture starts at
>  (0,0) $$$ > second at (1,1), third at (2,2) etc.
> $$$ >
> $$$ > If I use -xy 320 -vop scale=320:0 the picture is fine.
> $$$ > If I use less than 319 the picture is proportionally more skewed.
> $$$ >
> $$$ > I am crosscompiling to arm-linux with gcc 2.95.2 19991024
> $$$ >
> $$$ > It happens with 10  minutes old cvs ffmpeg+mplayer.
> $$$ >
> $$$ > Is there perhaps anybody working on this bug ? If yes, I might
> $$$ > just stop looking at the source myself :) (is there perhaps a book
> $$$ > like "MPlayer unleashed" or "Hacking MPlayer in 24 hours" ?? :])
> $$$ >
> $$$ > Otherwise mplayer really kicks ass, it is faster than any other
>  movieplayer $$$ > on the zaurus, consumes little ram and can play anything
>  (only tried divx and $$$ > mpeg pes though)! Thanks for this fine player!
> $$$ >
> $$$ > best regards
> $$$ > Denes
> $$$ >
> $$$ >
> $$$ > - --
> $$$ > "Use the source Luke !"
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> $$$ > _______________________________________________
> $$$ > RTFM!!!  http://www.MPlayerHQ.hu/DOCS
> $$$ > Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
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> $$$ >
> $$$ >
> $$$
> $$$
> $$$ A'rpi / Astral & ESP-team
> $$$
> $$$ --
> $$$ Developer of MPlayer, the Movie Player for Linux -
>  http://www.MPlayerHQ.hu $$$
> $$$ _______________________________________________
> $$$ RTFM!!!  http://www.MPlayerHQ.hu/DOCS
> $$$ Search:  http://www.MPlayerHQ.hu/cgi-bin/htsearch
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> $$$
> 
> - -- 
> "Use the source Luke !"
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> _______________________________________________
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> 


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu




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