[MPlayer-dev-eng] BMP Demuxer & 4bpp MS RLE

[D Richard Felker III]

On Tue, Mar 19, 2002 at 09:57:38PM -0700, Mike Melanson wrote:
> Hi team,
> 	This is a momentous day in the history of MPlayer
> development. This is the day that MPlayer supports 4-bit Microsoft
> RLE. Really. I don't even know if there ever were AVI files with 4-bit
> RLE, but if there are, you can count on MPlayer to play them.
> 
> 	But here's the kicker: Since I needed a way to test the support
> and there are no sample AVIs to be found, but I can create sample BMP
> files, I added a BMP image "demuxer". Actually, it just continuously loads
> the same frame over and over again, twice a second. It works. Maybe we can
> apply this to other still image formats? A JPEG "demuxer" that uses the
> same optimized IDCT routines as the MPEG libraries and uses the Xv
> scaling?
> 
> 	Bonus: The BMP demuxer supports seeking...heh...oww, hey! Stop
> throwing things at me...:) Unfortunately, the PNG vo target makes MPlayer
> crash, so you can't use MPlayer to transcode from BMP -> PNG.
> 
> 	Oh yeah, and you can find samples in incoming/bmp-files.

This might actually be useful with mf (multifile) support, at least
once rgb->yuv conversion works.

Rich