[FFmpeg-user] piped ffmpeg output to movie filter with preserved alpha channel

[Carl Eugen Hoyos]

Alex Vasilenko <aa.vasilenko <at> gmail.com> writes:

> On Wednesday, March 27, 2013 at 12:57 , Carl Eugen Hoyos wrote:
> > Alex Vasilenko <aa.vasilenko <at> gmail.com (http://gmail.com)> writes:
> > 
> > > ffmpeg -loop 1 -i watermark2.jpg -t 5 -c qtrle [...] 
> > > -f mpegts -pix_fmt argb -
> > 
> > mpegts does not support the qtrle codec, this is not a FFmpeg 
> > limitation, but a limitation of the specification.
> 
> mpegts was just an example.

My answer was only related to your example.

Why can't you read your "avatar" from file instead from 
a pipe, as you do it with watermark.png ?

Carl Eugen