[MPlayer-users] Re: Question about "Frame too small!" error

[Dean S. Messing]

Gabucino writes:
 :: 
 :: Dean S. Messing wrote:
 :: > I notice that the .avi is found to be 8bpp.  I take it this means it's
 :: > monochrome.
 :: VGA standard cries in the corner... 8bpp (8 bit per pixel) is 256 colour!
 :: Anyway -vo x11 can't handle 8bpp (BUG!), use -vo sdl
 :: 
 :: --
 :: Gabucino
 :: MPlayer Core Team

Sorry, I don't get what you mean by "VGA standard cries in the corner"

Yes 8bpp can mean 256 colours (e.g. 3 bits R, 3 bits G, 2 bits B)
but in many contexts it can also mean "monochrome" i.e. 256 grey levels.
I'm not sure about .avi files but most still image formats must provide
a Colour Lookup Table w/in the file if the 8 bits are to be interpreted
in any way other than "grey level".

Since this .avi is, in fact, monochrome, (i.e. greyscale), I am assuming
that this is what MPlayer is announcing when it writes

VIDEO:  []  522x256  8bpp  60.00 fps  64389.1 kbps (7860.0 kbyte/s)
                     ^^^^

Also, `-vo sdl' did not work.   I got the same "frame too small" errors.
All the same, thanks for trying to help me.  I do appreciate it.


Arpi's suggestion in:

 :: From: Arpi <arpi at thot.banki.hu>
 :: To: mplayer-users at mplayerhq.hu
 :: Subject: Re: [MPlayer-users] Question about "Frame too small!" error
 :: 
 :: Hi,
 :: 
 :: -vop palette -vc rawrgb8 (or rawbgr8) ?
 :: 

does work.  It's all still pretty magic to me though.  (By the way
it is rawbgr8 that does the trick.  I have no codec called rawrgb8.

It's actually the `-vop palette' that solves the problem by itself
though MPlayer, in this case, had to search for a codec.  For some
reason it finds the right one with `-vop palette'.

I actually love all the knobs and buttons on MPlayer, but they sure
seem a bear to learn!!

                                  Dean S. Messing
                                  Display Algorithms & Visual Optimization Lab
                                  Information Systems Technologies Dept.
                                  Sharp Laboratories of America