[MEncoder-users] using mf:// with stdin

[Morris Beverly]

Reimar Döffinger wrote:
> Hello,
> On Thu, Apr 19, 2007 at 01:14:28PM -0400, Morris Beverly wrote:
>   
>>  RC wrote:
>>     
>>> Using a fifo with an ".mjpeg"
>>> extension works.
>>>       
> [...]
>   
>>  cat pix/test2.jpg | mencoder - -demuxer lavf -ovc copy -v -o cattest_1.avi
>>     
>
> I wasn't aware that there is no autodetection for mjpeg.
> -demuxer lavf -lavfdopts format=mjpeg
> should work around that problem.
>
> Greetings,
> Reimar Döffinger
>
>   
Will lavf take either pnm or png files as a stream, perhaps png files as 
an mng animation stream (or maybe through a fifo)?   I'm looking for a 
more nearly  lossless conversion than I'm getting with mjpeg (lots of 
hard edges and saturated colors).

thanks,

morris