expand filter issue

[GoogleCodeExporter]

What steps will reproduce the problem?
in the ~/.mplayer/config put these line
vf=expand::::1:16/9
monitoraspect=16:9

What is the expected output? What do you see instead?
expand filter should expand video by adding black bars at the top and
bottom of the window, if the movie aspect ratio is less (or bigger??) then
my monitor aspect ratio. this is useful with subtitles, subtitles will go
into the expanded black bar under the video. however, it doesn't work with
coreavc, the output looks like the color planes get misaligned, so there is
a black and white picture, then red picture offset to top, and blue picture
offset to bottom. 

What version of the product are you using? On what operating system?
coreavc svn rev 77, mplayer svn rev 27800

Please provide any additional information below.
this is on linux, x86, 32bit.

Original issue reported on code.google.com by ufayz...@gmail.com on 23 Oct 2008 at 11:13

[GoogleCodeExporter]

I'm not really sure what I can do about this to be honest.  I'll take a look, 
but I
have a feeling mplayer just doesn't provide enogh info to resolve it.

Original comment by alannis...@gmail.com on 28 Oct 2008 at 2:18

• Changed state: Accepted

[GoogleCodeExporter]

Same problem here on linux, x86, 32bit.

Original comment by itb...@gmail.com on 22 Mar 2009 at 2:19

[GoogleCodeExporter]

One way to fix this is only to use 
out YUY2 
in codecs.conf
(with -vo xv)
but in my case this also has performance impact (slower).
some other combinations of out, -vf and -vo also works. For example out YV12 
-vo gl 
or out I420 -vo xv -vf scale, but out YUY2 works in all cases.

Original comment by kjchmiel...@gmail.com on 13 Sep 2009 at 3:37

[GoogleCodeExporter]

this patch also helps

Original comment by kjchmiel...@gmail.com on 14 Sep 2009 at 12:52

Attachments:

• vf_expand.diff

[GoogleCodeExporter]

This has nothing to do with CoreAVC.  It is dependant on how mplayer converts 
yuv to
your monitor.  as mentioned using gl, filters, or alternate output formats can
resolve this.

Original comment by alannis...@gmail.com on 9 Jan 2010 at 3:05

• Changed state: WontFix