[MPlayer-users] PNG output fails

[Lobster]

On 16/02/2012 12:26 p.m., Marlon Smith wrote:
> Hi everyone,
>
> I've successfully compiled MPlayer in Windows using MinGW, and it works!
> Now I'm trying to use MPlayer to create a PNG snapshot from a video (I
> know the syntax is right because it works in Linux), but I'm getting
> this error:
>
> [png @ 012fd120]Specified pix_fmt is not supported
> Error opening/initializing the selected video_out (-vo) device.
>
> If I just play the video, it works fine.  I thought I had compiled
> libpng properly in MinGW, but maybe not?
>
> Does anyone know what could be missing that would cause this message?

This should have been fixed in a patch that was applied on the 15th of 
Feb 2012.

Please make sure the source you compile from is newer than that.