[MPlayer-users] ANNOUNCE: mencoder migrated to video filter layer

[Arpi]

Hi,

Don't be surprised, if crop, resize, flip options of mencoder stop working!
I've updated mencoder, now it uses the new video filter layer for
everything.
Advantages:
- image size detection from codecs, usefull for -mf and .mp4
- you can use all -vop filters, even resize ones (crop,expand,scale)
- simple, clean, more stable code
Disadvantages:
- heh?

quick list of filters and usage again:

crop=w:h[:x:y]     - crop...
expand=[w:h[:x:y]] - without w:h it does extra copy, see later
scale=[w:h]        - without w:h it does only colorspace conversion!
flip               - flip image upside-down (useful for mencoder -ovc vfw)
fame               - does YV12->MPEG1 conversion, use with -vo mpegpes/dxr3
format=fcc         - _limits_ outfmt to fcc (yv12,yuy2,bgr[15|16|24|32])
yuy2               - does very fast YV12->YUY2 conversion (for cards with slow YV12)
pp                 - external postprocessing, use with libmpeg2 or libavcodec
                     but the deinterlace part works with everything!

Notes: for colorspace conversion use scale, _NOT_ format !

Notes2: if you get garbage, horizontal lines (skewed image), then add
'expand' to your filter list. it may happen with crop and flip filters,
if the given vo or encoder plugin doesn't accept stride. will be fixed.

Notes3: some reported that -vop expand -dr is faster than no -dr at all!?


A'rpi / Astral & ESP-team

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